diff options
23 files changed, 1991 insertions, 300 deletions
diff --git a/html/baremetal/102keyboard.subx.html b/html/baremetal/102keyboard.subx.html new file mode 100644 index 00000000..f841e696 --- /dev/null +++ b/html/baremetal/102keyboard.subx.html @@ -0,0 +1,102 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/102keyboard.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/102keyboard.subx'>https://github.com/akkartik/mu/blob/main/baremetal/102keyboard.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># check keyboard for a key</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># return 0 on no keypress or unrecognized key</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxFunction">read-key</span>: <span class="subxComment"># kbd: (addr keyboard) -> result/eax: byte</span> +<span id="L4" class="LineNr"> 4 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L5" class="LineNr"> 5 </span> 55/push-ebp +<span id="L6" class="LineNr"> 6 </span> 89/<- %ebp 4/r32/esp +<span id="L7" class="LineNr"> 7 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L8" class="LineNr"> 8 </span> 51/push-ecx +<span id="L9" class="LineNr"> 9 </span> <span class="subxComment"># result = 0</span> +<span id="L10" class="LineNr">10 </span> b8/copy-to-eax 0/imm32 +<span id="L11" class="LineNr">11 </span> <span class="subxComment"># ecx = keyboard</span> +<span id="L12" class="LineNr">12 </span> 8b/-> *(ebp+8) 1/r32/ecx +<span id="L13" class="LineNr">13 </span> 81 7/subop/compare %ecx 0/imm32 +<span id="L14" class="LineNr">14 </span> { +<span id="L15" class="LineNr">15 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8 +<span id="L16" class="LineNr">16 </span> <span class="subxComment"># var read/ecx: byte = keyboard buffer's read index</span> +<span id="L17" class="LineNr">17 </span> 8b/-> *0x7dcc 1/r32/CL <span class="subxComment"># keyboard-buffer-read</span> +<span id="L18" class="LineNr">18 </span> <span class="subxComment"># var next-key/eax: byte = *(keyboard buffer + ecx)</span> +<span id="L19" class="LineNr">19 </span> 8a/byte-> *(ecx+0x7dd0) 0/r32/AL <span class="subxComment"># keyboard-buffer-data</span> +<span id="L20" class="LineNr">20 </span> <span class="subxComment"># if (next-key != 0) lock and remove from keyboard-buffer</span> +<span id="L21" class="LineNr">21 </span> 81 7/subop/compare %eax 0/imm32 +<span id="L22" class="LineNr">22 </span> { +<span id="L23" class="LineNr">23 </span> 74/jump-if-= <span class="Constant">break</span>/disp8 +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># TODO: add some instructions in this block to SubX if we ever want to</span> +<span id="L25" class="LineNr">25 </span> <span class="subxComment"># use bootstrap on baremetal programs</span> +<span id="L26" class="LineNr">26 </span> fa/disable-interrupts +<span id="L27" class="LineNr">27 </span> c6 0/subop/copy-byte *(ecx+0x7dd0) 0/imm8 +<span id="L28" class="LineNr">28 </span> ff 0/subop/increment *0x7dcc <span class="subxComment"># keyboard-buffer-read</span> +<span id="L29" class="LineNr">29 </span> 81 4/subop/and *0x7dcc 0xf/imm32 <span class="subxComment"># keyboard-buffer-read</span> +<span id="L30" class="LineNr">30 </span> fb/enable-interrupts +<span id="L31" class="LineNr">31 </span> } +<span id="L32" class="LineNr">32 </span> <span class="subxComment"># return</span> +<span id="L33" class="LineNr">33 </span> eb $read-key:end/disp8 +<span id="L34" class="LineNr">34 </span> } +<span id="L35" class="LineNr">35 </span> <span class="subxComment"># TODO: fake keyboard</span> +<span id="L36" class="LineNr">36 </span><span class="Constant">$read-key:end</span>: +<span id="L37" class="LineNr">37 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L38" class="LineNr">38 </span> 59/pop-to-ecx +<span id="L39" class="LineNr">39 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L40" class="LineNr">40 </span> 89/<- %esp 5/r32/ebp +<span id="L41" class="LineNr">41 </span> 5d/pop-to-ebp +<span id="L42" class="LineNr">42 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/103grapheme.subx.html b/html/baremetal/103grapheme.subx.html new file mode 100644 index 00000000..b34168d6 --- /dev/null +++ b/html/baremetal/103grapheme.subx.html @@ -0,0 +1,130 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/103grapheme.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/103grapheme.subx'>https://github.com/akkartik/mu/blob/main/baremetal/103grapheme.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxFunction">draw-grapheme</span>: <span class="subxComment"># screen: (addr screen), g: grapheme, x: int, y: int, color: int</span> +<span id="L2" class="LineNr"> 2 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L3" class="LineNr"> 3 </span> 55/push-ebp +<span id="L4" class="LineNr"> 4 </span> 89/<- %ebp 4/r32/esp +<span id="L5" class="LineNr"> 5 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L6" class="LineNr"> 6 </span> 50/push-eax +<span id="L7" class="LineNr"> 7 </span> 51/push-ecx +<span id="L8" class="LineNr"> 8 </span> 52/push-edx +<span id="L9" class="LineNr"> 9 </span> 53/push-ebx +<span id="L10" class="LineNr">10 </span> 56/push-esi +<span id="L11" class="LineNr">11 </span> <span class="subxComment"># var letter-bitmap/esi = font[g]</span> +<span id="L12" class="LineNr">12 </span> 8b/-> *(ebp+0xc) 6/r32/esi +<span id="L13" class="LineNr">13 </span> c1 4/subop/shift-left %esi 4/imm8 +<span id="L14" class="LineNr">14 </span> 8d/copy-address *(esi+0x8800) 6/r32/esi <span class="subxComment"># font-start</span> +<span id="L15" class="LineNr">15 </span> <span class="subxComment"># if (letter-bitmap >= 0x9000) return # characters beyond ASCII currently not supported</span> +<span id="L16" class="LineNr">16 </span> 81 7/subop/compare %esi 0x9000/imm32 +<span id="L17" class="LineNr">17 </span> 7d/jump-if->= $draw-grapheme:end/disp8 +<span id="L18" class="LineNr">18 </span> <span class="subxComment"># edx = y</span> +<span id="L19" class="LineNr">19 </span> 8b/-> *(ebp+0x14) 2/r32/edx +<span id="L20" class="LineNr">20 </span> <span class="subxComment"># var ymax/ebx: int = y + 16</span> +<span id="L21" class="LineNr">21 </span> 8b/-> *(ebp+0x14) 3/r32/ebx +<span id="L22" class="LineNr">22 </span> 81 0/subop/add %ebx 0x10/imm32 +<span id="L23" class="LineNr">23 </span> { +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># if (y >= ymax) break</span> +<span id="L25" class="LineNr">25 </span> 39/compare %edx 3/r32/ebx +<span id="L26" class="LineNr">26 </span> 7d/jump-if->= <span class="Constant">break</span>/disp8 +<span id="L27" class="LineNr">27 </span> <span class="subxComment"># eax = x + 7</span> +<span id="L28" class="LineNr">28 </span> 8b/-> *(ebp+0x10) 0/r32/eax +<span id="L29" class="LineNr">29 </span> 81 0/subop/add %eax 7/imm32 +<span id="L30" class="LineNr">30 </span> <span class="subxComment"># var xmin/ecx: int = x</span> +<span id="L31" class="LineNr">31 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L32" class="LineNr">32 </span> <span class="subxComment"># var row-bitmap/ebx: int = *letter-bitmap</span> +<span id="L33" class="LineNr">33 </span> 53/push-ebx +<span id="L34" class="LineNr">34 </span> 8b/-> *esi 3/r32/ebx +<span id="L35" class="LineNr">35 </span> { +<span id="L36" class="LineNr">36 </span> <span class="subxComment"># if (x < xmin) break</span> +<span id="L37" class="LineNr">37 </span> 39/compare %eax 1/r32/ecx +<span id="L38" class="LineNr">38 </span> 7c/jump-if-< <span class="Constant">break</span>/disp8 +<span id="L39" class="LineNr">39 </span> <span class="subxComment"># shift LSB from row-bitmap into carry flag (CF)</span> +<span id="L40" class="LineNr">40 </span> c1 5/subop/shift-right-logical %ebx 1/imm8 +<span id="L41" class="LineNr">41 </span> <span class="subxComment"># if LSB, draw a pixel</span> +<span id="L42" class="LineNr">42 </span> { +<span id="L43" class="LineNr">43 </span> 73/jump-if-not-CF <span class="Constant">break</span>/disp8 +<span id="L44" class="LineNr">44 </span> (<a href='101screen.subx.html#L3'>pixel</a> *(ebp+8) %eax %edx *(ebp+0x18)) +<span id="L45" class="LineNr">45 </span> } +<span id="L46" class="LineNr">46 </span> <span class="subxComment"># --x</span> +<span id="L47" class="LineNr">47 </span> 48/decrement-eax +<span id="L48" class="LineNr">48 </span> <span class="subxComment">#</span> +<span id="L49" class="LineNr">49 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L50" class="LineNr">50 </span> } +<span id="L51" class="LineNr">51 </span> <span class="subxComment"># reclaim row-bitmap</span> +<span id="L52" class="LineNr">52 </span> 5b/pop-to-ebx +<span id="L53" class="LineNr">53 </span> <span class="subxComment"># ++y</span> +<span id="L54" class="LineNr">54 </span> 42/increment-edx +<span id="L55" class="LineNr">55 </span> <span class="subxComment"># next bitmap row</span> +<span id="L56" class="LineNr">56 </span> 46/increment-esi +<span id="L57" class="LineNr">57 </span> <span class="subxComment">#</span> +<span id="L58" class="LineNr">58 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L59" class="LineNr">59 </span> } +<span id="L60" class="LineNr">60 </span><span class="Constant">$draw-grapheme:end</span>: +<span id="L61" class="LineNr">61 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L62" class="LineNr">62 </span> 5e/pop-to-esi +<span id="L63" class="LineNr">63 </span> 5b/pop-to-ebx +<span id="L64" class="LineNr">64 </span> 5a/pop-to-edx +<span id="L65" class="LineNr">65 </span> 59/pop-to-ecx +<span id="L66" class="LineNr">66 </span> 58/pop-to-eax +<span id="L67" class="LineNr">67 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L68" class="LineNr">68 </span> 89/<- %esp 5/r32/ebp +<span id="L69" class="LineNr">69 </span> 5d/pop-to-ebp +<span id="L70" class="LineNr">70 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/107trace.subx.html b/html/baremetal/107trace.subx.html new file mode 100644 index 00000000..db7cdd65 --- /dev/null +++ b/html/baremetal/107trace.subx.html @@ -0,0 +1,149 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/107trace.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS1Comment { color: #0000af; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.Constant { color: #008787; } +.subxMinorFunction { color: #875f5f; } +.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/107trace.subx'>https://github.com/akkartik/mu/blob/main/baremetal/107trace.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># 3-argument variant of _append</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxMinorFunction">_append-3</span>: <span class="subxComment"># out: (addr byte), outend: (addr byte), s: (addr array byte) -> num_bytes_appended/eax</span> +<span id="L7" class="LineNr"> 7 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L8" class="LineNr"> 8 </span> 55/push-ebp +<span id="L9" class="LineNr"> 9 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L10" class="LineNr">10 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L11" class="LineNr">11 </span> 51/push-ecx +<span id="L12" class="LineNr">12 </span> <span class="subxComment"># eax = _append-4(out, outend, &s->data[0], &s->data[s->size])</span> +<span id="L13" class="LineNr">13 </span> <span class="subxS2Comment"># . . push &s->data[s->size]</span> +<span id="L14" class="LineNr">14 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax 0x10/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+16) to eax</span> +<span id="L15" class="LineNr">15 </span> 8b/copy 0/mod/indirect 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *eax to ecx</span> +<span id="L16" class="LineNr">16 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx <span class="Normal"> . </span> 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy eax+ecx+4 to ecx</span> +<span id="L17" class="LineNr">17 </span> 51/push-ecx +<span id="L18" class="LineNr">18 </span> <span class="subxS2Comment"># . . push &s->data[0]</span> +<span id="L19" class="LineNr">19 </span> 8d/copy-address 1/mod/*+disp8 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy eax+4 to ecx</span> +<span id="L20" class="LineNr">20 </span> 51/push-ecx +<span id="L21" class="LineNr">21 </span> <span class="subxS2Comment"># . . push outend</span> +<span id="L22" class="LineNr">22 </span> ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># push *(ebp+12)</span> +<span id="L23" class="LineNr">23 </span> <span class="subxS2Comment"># . . push out</span> +<span id="L24" class="LineNr">24 </span> ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># push *(ebp+8)</span> +<span id="L25" class="LineNr">25 </span> <span class="subxS2Comment"># . . call</span> +<span id="L26" class="LineNr">26 </span> e8/call <a href='107trace.subx.html#L38'>_append-4</a>/disp32 +<span id="L27" class="LineNr">27 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L28" class="LineNr">28 </span> 81 0/subop/add 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0x10/imm32 <span class="subxComment"># add to esp</span> +<span id="L29" class="LineNr">29 </span><span class="Constant">$_append-3:end</span>: +<span id="L30" class="LineNr">30 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L31" class="LineNr">31 </span> 59/pop-to-ecx +<span id="L32" class="LineNr">32 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L34" class="LineNr">34 </span> 5d/pop-to-ebp +<span id="L35" class="LineNr">35 </span> c3/return +<span id="L36" class="LineNr">36 </span> +<span id="L37" class="LineNr">37 </span><span class="subxComment"># 4-argument variant of _append</span> +<span id="L38" class="LineNr">38 </span><span class="subxMinorFunction">_append-4</span>: <span class="subxComment"># out: (addr byte), outend: (addr byte), in: (addr byte), inend: (addr byte) -> num_bytes_appended/eax: int</span> +<span id="L39" class="LineNr">39 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L40" class="LineNr">40 </span> 55/push-ebp +<span id="L41" class="LineNr">41 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L42" class="LineNr">42 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L43" class="LineNr">43 </span> 51/push-ecx +<span id="L44" class="LineNr">44 </span> 52/push-edx +<span id="L45" class="LineNr">45 </span> 53/push-ebx +<span id="L46" class="LineNr">46 </span> 56/push-esi +<span id="L47" class="LineNr">47 </span> 57/push-edi +<span id="L48" class="LineNr">48 </span> <span class="subxComment"># num_bytes_appended = 0</span> +<span id="L49" class="LineNr">49 </span> b8/copy-to-eax 0/imm32 +<span id="L50" class="LineNr">50 </span> <span class="subxComment"># edi = out</span> +<span id="L51" class="LineNr">51 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 7/r32/edi 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to edi</span> +<span id="L52" class="LineNr">52 </span> <span class="subxComment"># edx = outend</span> +<span id="L53" class="LineNr">53 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+12) to edx</span> +<span id="L54" class="LineNr">54 </span> <span class="subxComment"># esi = in</span> +<span id="L55" class="LineNr">55 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/esi 0x10/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+16) to esi</span> +<span id="L56" class="LineNr">56 </span> <span class="subxComment"># ecx = inend</span> +<span id="L57" class="LineNr">57 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 0x14/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+20) to ecx</span> +<span id="L58" class="LineNr">58 </span><span class="Constant">$_append-4:loop</span>: +<span id="L59" class="LineNr">59 </span> <span class="subxComment"># if (in >= inend) break</span> +<span id="L60" class="LineNr">60 </span> 39/compare 3/mod/direct 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare esi with ecx</span> +<span id="L61" class="LineNr">61 </span> 73/jump-if-addr>= $_append-4:end/disp8 +<span id="L62" class="LineNr">62 </span> <span class="subxComment"># if (out >= outend) abort # just to catch test failures fast</span> +<span id="L63" class="LineNr">63 </span> 39/compare 3/mod/direct 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare edi with edx</span> +<span id="L64" class="LineNr">64 </span> 73/jump-if-addr>= $_append-4:end/disp8 <span class="subxComment"># TODO: abort</span> +<span id="L65" class="LineNr">65 </span> <span class="subxComment"># *out = *in</span> +<span id="L66" class="LineNr">66 </span> 8a/copy-byte 0/mod/indirect 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *esi to BL</span> +<span id="L67" class="LineNr">67 </span> 88/copy-byte 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at BL to *edi</span> +<span id="L68" class="LineNr">68 </span> <span class="subxComment"># ++num_bytes_appended</span> +<span id="L69" class="LineNr">69 </span> 40/increment-eax +<span id="L70" class="LineNr">70 </span> <span class="subxComment"># ++in</span> +<span id="L71" class="LineNr">71 </span> 46/increment-esi +<span id="L72" class="LineNr">72 </span> <span class="subxComment"># ++out</span> +<span id="L73" class="LineNr">73 </span> 47/increment-edi +<span id="L74" class="LineNr">74 </span> eb/jump $_append-4:<span class="Constant">loop</span>/disp8 +<span id="L75" class="LineNr">75 </span><span class="Constant">$_append-4:end</span>: +<span id="L76" class="LineNr">76 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L77" class="LineNr">77 </span> 5f/pop-to-edi +<span id="L78" class="LineNr">78 </span> 5e/pop-to-esi +<span id="L79" class="LineNr">79 </span> 5b/pop-to-ebx +<span id="L80" class="LineNr">80 </span> 5a/pop-to-edx +<span id="L81" class="LineNr">81 </span> 59/pop-to-ecx +<span id="L82" class="LineNr">82 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L83" class="LineNr">83 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L84" class="LineNr">84 </span> 5d/pop-to-ebp +<span id="L85" class="LineNr">85 </span> c3/return +<span id="L86" class="LineNr">86 </span> +<span id="L87" class="LineNr">87 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/108write.subx.html b/html/baremetal/108write.subx.html new file mode 100644 index 00000000..68c65e6d --- /dev/null +++ b/html/baremetal/108write.subx.html @@ -0,0 +1,115 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/108write.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS1Comment { color: #0000af; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/108write.subx'>https://github.com/akkartik/mu/blob/main/baremetal/108write.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="subxFunction">write</span>: <span class="subxComment"># f: (addr stream byte), s: (addr array byte)</span> +<span id="L6" class="LineNr"> 6 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L7" class="LineNr"> 7 </span> 55/push-ebp +<span id="L8" class="LineNr"> 8 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L9" class="LineNr"> 9 </span> <span class="subxComment"># if (s == 0) return</span> +<span id="L10" class="LineNr">10 </span> 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/disp8 0/imm32 <span class="subxComment"># compare *(ebp+12)</span> +<span id="L11" class="LineNr">11 </span> 74/jump-if-= $write:end/disp8 +<span id="L12" class="LineNr">12 </span> <span class="subxComment"># TODO: write to file</span> +<span id="L13" class="LineNr">13 </span> <span class="subxComment"># otherwise, treat 'f' as a stream to append to</span> +<span id="L14" class="LineNr">14 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L15" class="LineNr">15 </span> 50/push-eax +<span id="L16" class="LineNr">16 </span> 51/push-ecx +<span id="L17" class="LineNr">17 </span> 52/push-edx +<span id="L18" class="LineNr">18 </span> 53/push-ebx +<span id="L19" class="LineNr">19 </span> <span class="subxComment"># ecx = f</span> +<span id="L20" class="LineNr">20 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to ecx</span> +<span id="L21" class="LineNr">21 </span> <span class="subxComment"># edx = f->write</span> +<span id="L22" class="LineNr">22 </span> 8b/copy 0/mod/indirect 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *ecx to edx</span> +<span id="L23" class="LineNr">23 </span> <span class="subxComment"># ebx = f->size</span> +<span id="L24" class="LineNr">24 </span> 8b/copy 1/mod/*+disp8 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/ebx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ecx+8) to ebx</span> +<span id="L25" class="LineNr">25 </span> <span class="subxComment"># eax = _append-3(&f->data[f->write], &f->data[f->size], s)</span> +<span id="L26" class="LineNr">26 </span> <span class="subxS2Comment"># . . push s</span> +<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># push *(ebp+12)</span> +<span id="L28" class="LineNr">28 </span> <span class="subxS2Comment"># . . push &f->data[f->size]</span> +<span id="L29" class="LineNr">29 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 3/index/ebx <span class="Normal"> . </span> 3/r32/ebx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy ecx+ebx+12 to ebx</span> +<span id="L30" class="LineNr">30 </span> 53/push-ebx +<span id="L31" class="LineNr">31 </span> <span class="subxS2Comment"># . . push &f->data[f->write]</span> +<span id="L32" class="LineNr">32 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx <span class="Normal"> . </span> 3/r32/ebx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy ecx+edx+12 to ebx</span> +<span id="L33" class="LineNr">33 </span> 53/push-ebx +<span id="L34" class="LineNr">34 </span> <span class="subxS2Comment"># . . call</span> +<span id="L35" class="LineNr">35 </span> e8/call <a href='107trace.subx.html#L6'>_append-3</a>/disp32 +<span id="L36" class="LineNr">36 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L37" class="LineNr">37 </span> 81 0/subop/add 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to esp</span> +<span id="L38" class="LineNr">38 </span> <span class="subxComment"># f->write += eax</span> +<span id="L39" class="LineNr">39 </span> 01/add 0/mod/indirect 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># add eax to *ecx</span> +<span id="L40" class="LineNr">40 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L41" class="LineNr">41 </span> 5b/pop-to-ebx +<span id="L42" class="LineNr">42 </span> 5a/pop-to-edx +<span id="L43" class="LineNr">43 </span> 59/pop-to-ecx +<span id="L44" class="LineNr">44 </span> 58/pop-to-eax +<span id="L45" class="LineNr">45 </span><span class="Constant">$write:end</span>: +<span id="L46" class="LineNr">46 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L47" class="LineNr">47 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L48" class="LineNr">48 </span> 5d/pop-to-ebp +<span id="L49" class="LineNr">49 </span> c3/return +<span id="L50" class="LineNr">50 </span> +<span id="L51" class="LineNr">51 </span><span class="subxComment"># TODO: bring in tests once we have check-ints-equal</span> +<span id="L52" class="LineNr">52 </span> +<span id="L53" class="LineNr">53 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/112read-byte.subx.html b/html/baremetal/112read-byte.subx.html new file mode 100644 index 00000000..7673eab8 --- /dev/null +++ b/html/baremetal/112read-byte.subx.html @@ -0,0 +1,95 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/112read-byte.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/112read-byte.subx'>https://github.com/akkartik/mu/blob/main/baremetal/112read-byte.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># TODO: read-byte-buffered</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># Return next byte value in eax, with top 3 bytes cleared.</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># Abort on reaching end of stream.</span> +<span id="L5" class="LineNr"> 5 </span><span class="subxFunction">read-byte</span>: <span class="subxComment"># s: (addr stream byte) -> result/eax: byte</span> +<span id="L6" class="LineNr"> 6 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L7" class="LineNr"> 7 </span> 55/push-ebp +<span id="L8" class="LineNr"> 8 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L9" class="LineNr"> 9 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L10" class="LineNr">10 </span> 51/push-ecx +<span id="L11" class="LineNr">11 </span> 56/push-esi +<span id="L12" class="LineNr">12 </span> <span class="subxComment"># esi = s</span> +<span id="L13" class="LineNr">13 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/esi 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to esi</span> +<span id="L14" class="LineNr">14 </span> <span class="subxComment"># ecx = s->read</span> +<span id="L15" class="LineNr">15 </span> 8b/copy 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(esi+4) to ecx</span> +<span id="L16" class="LineNr">16 </span> <span class="subxComment"># if (f->read >= f->write) abort</span> +<span id="L17" class="LineNr">17 </span> 3b/compare 0/mod/indirect 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ecx with *esi</span> +<span id="L18" class="LineNr">18 </span> 0f 8d/jump-if->= $read-byte:end/disp32 <span class="subxComment"># TODO: abort</span> +<span id="L19" class="LineNr">19 </span> <span class="subxComment"># result = f->data[f->read]</span> +<span id="L20" class="LineNr">20 </span> 31/xor 3/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear eax</span> +<span id="L21" class="LineNr">21 </span> 8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx <span class="Normal"> . </span> 0/r32/AL 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span> +<span id="L22" class="LineNr">22 </span> <span class="subxComment"># ++f->read</span> +<span id="L23" class="LineNr">23 </span> ff 0/subop/increment 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># increment *(esi+4)</span> +<span id="L24" class="LineNr">24 </span><span class="Constant">$read-byte:end</span>: +<span id="L25" class="LineNr">25 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L26" class="LineNr">26 </span> 5e/pop-to-esi +<span id="L27" class="LineNr">27 </span> 59/pop-to-ecx +<span id="L28" class="LineNr">28 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L29" class="LineNr">29 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L30" class="LineNr">30 </span> 5d/pop-to-ebp +<span id="L31" class="LineNr">31 </span> c3/return +<span id="L32" class="LineNr">32 </span> +<span id="L33" class="LineNr">33 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/115write-byte.subx.html b/html/baremetal/115write-byte.subx.html new file mode 100644 index 00000000..43cbc843 --- /dev/null +++ b/html/baremetal/115write-byte.subx.html @@ -0,0 +1,99 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/115write-byte.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS1Comment { color: #0000af; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/115write-byte.subx'>https://github.com/akkartik/mu/blob/main/baremetal/115write-byte.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># Write lower byte of 'n' to 'f'.</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxFunction">append-byte</span>: <span class="subxComment"># f: (addr stream byte), n: int</span> +<span id="L7" class="LineNr"> 7 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L8" class="LineNr"> 8 </span> 55/push-ebp +<span id="L9" class="LineNr"> 9 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L10" class="LineNr">10 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L11" class="LineNr">11 </span> 51/push-ecx +<span id="L12" class="LineNr">12 </span> 57/push-edi +<span id="L13" class="LineNr">13 </span> <span class="subxComment"># edi = f</span> +<span id="L14" class="LineNr">14 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 7/r32/edi 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to edi</span> +<span id="L15" class="LineNr">15 </span> <span class="subxComment"># ecx = f->write</span> +<span id="L16" class="LineNr">16 </span> 8b/copy 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *edi to ecx</span> +<span id="L17" class="LineNr">17 </span> <span class="subxComment"># if (f->write >= f->size) abort</span> +<span id="L18" class="LineNr">18 </span> 3b/compare 1/mod/*+disp8 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># compare ecx with *(edi+8)</span> +<span id="L19" class="LineNr">19 </span> 7d/jump-if->= $append-byte:end/disp8 <span class="subxComment"># TODO: abort</span> +<span id="L20" class="LineNr">20 </span><span class="Constant">$append-byte:to-stream</span>: +<span id="L21" class="LineNr">21 </span> <span class="subxComment"># write to stream</span> +<span id="L22" class="LineNr">22 </span> <span class="subxComment"># f->data[f->write] = LSB(n)</span> +<span id="L23" class="LineNr">23 </span> 31/xor 3/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear eax</span> +<span id="L24" class="LineNr">24 </span> 8a/copy-byte 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/AL 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy byte at *(ebp+12) to AL</span> +<span id="L25" class="LineNr">25 </span> 88/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/edi 1/index/ecx <span class="Normal"> . </span> 0/r32/AL 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy AL to *(edi+ecx+12)</span> +<span id="L26" class="LineNr">26 </span> <span class="subxComment"># ++f->write</span> +<span id="L27" class="LineNr">27 </span> ff 0/subop/increment 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># increment *edi</span> +<span id="L28" class="LineNr">28 </span><span class="Constant">$append-byte:end</span>: +<span id="L29" class="LineNr">29 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L30" class="LineNr">30 </span> 5f/pop-to-edi +<span id="L31" class="LineNr">31 </span> 59/pop-to-ecx +<span id="L32" class="LineNr">32 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L34" class="LineNr">34 </span> 5d/pop-to-ebp +<span id="L35" class="LineNr">35 </span> c3/return +<span id="L36" class="LineNr">36 </span> +<span id="L37" class="LineNr">37 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/120allocate.subx.html b/html/baremetal/120allocate.subx.html new file mode 100644 index 00000000..e11f9b00 --- /dev/null +++ b/html/baremetal/120allocate.subx.html @@ -0,0 +1,114 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/120allocate.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS1Comment { color: #0000af; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/120allocate.subx'>https://github.com/akkartik/mu/blob/main/baremetal/120allocate.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># Fill a region of memory with zeroes.</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxFunction">zero-out</span>: <span class="subxComment"># start: (addr byte), size: int</span> +<span id="L7" class="LineNr"> 7 </span> <span class="subxComment"># pseudocode:</span> +<span id="L8" class="LineNr"> 8 </span> <span class="subxComment"># curr/esi = start</span> +<span id="L9" class="LineNr"> 9 </span> <span class="subxComment"># i/ecx = 0</span> +<span id="L10" class="LineNr">10 </span> <span class="subxComment"># while true</span> +<span id="L11" class="LineNr">11 </span> <span class="subxComment"># if (i >= size) break</span> +<span id="L12" class="LineNr">12 </span> <span class="subxComment"># *curr = 0</span> +<span id="L13" class="LineNr">13 </span> <span class="subxComment"># ++curr</span> +<span id="L14" class="LineNr">14 </span> <span class="subxComment"># ++i</span> +<span id="L15" class="LineNr">15 </span> <span class="subxComment">#</span> +<span id="L16" class="LineNr">16 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L17" class="LineNr">17 </span> 55/push-ebp +<span id="L18" class="LineNr">18 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> +<span id="L19" class="LineNr">19 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L20" class="LineNr">20 </span> 50/push-eax +<span id="L21" class="LineNr">21 </span> 51/push-ecx +<span id="L22" class="LineNr">22 </span> 52/push-edx +<span id="L23" class="LineNr">23 </span> 56/push-esi +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># curr/esi = start</span> +<span id="L25" class="LineNr">25 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/esi 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to esi</span> +<span id="L26" class="LineNr">26 </span> <span class="subxComment"># var i/ecx: int = 0</span> +<span id="L27" class="LineNr">27 </span> 31/xor 3/mod/direct 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear ecx</span> +<span id="L28" class="LineNr">28 </span> <span class="subxComment"># edx = size</span> +<span id="L29" class="LineNr">29 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+12) to edx</span> +<span id="L30" class="LineNr">30 </span><span class="Constant">$zero-out:loop</span>: +<span id="L31" class="LineNr">31 </span> <span class="subxComment"># if (i >= size) break</span> +<span id="L32" class="LineNr">32 </span> 39/compare 3/mod/direct 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ecx with edx</span> +<span id="L33" class="LineNr">33 </span> 7d/jump-if->= $zero-out:end/disp8 +<span id="L34" class="LineNr">34 </span> <span class="subxComment"># *curr = 0</span> +<span id="L35" class="LineNr">35 </span> c6 0/subop/copy-byte 0/mod/direct 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/imm8 <span class="subxComment"># copy byte to *esi</span> +<span id="L36" class="LineNr">36 </span> <span class="subxComment"># ++curr</span> +<span id="L37" class="LineNr">37 </span> 46/increment-esi +<span id="L38" class="LineNr">38 </span> <span class="subxComment"># ++i</span> +<span id="L39" class="LineNr">39 </span> 41/increment-ecx +<span id="L40" class="LineNr">40 </span> eb/jump $zero-out:<span class="Constant">loop</span>/disp8 +<span id="L41" class="LineNr">41 </span><span class="Constant">$zero-out:end</span>: +<span id="L42" class="LineNr">42 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L43" class="LineNr">43 </span> 5e/pop-to-esi +<span id="L44" class="LineNr">44 </span> 5a/pop-to-edx +<span id="L45" class="LineNr">45 </span> 59/pop-to-ecx +<span id="L46" class="LineNr">46 </span> 58/pop-to-eax +<span id="L47" class="LineNr">47 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L48" class="LineNr">48 </span> 89/copy 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ebp to esp</span> +<span id="L49" class="LineNr">49 </span> 5d/pop-to-ebp +<span id="L50" class="LineNr">50 </span> c3/return +<span id="L51" class="LineNr">51 </span> +<span id="L52" class="LineNr">52 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/302stack_allocate.subx.html b/html/baremetal/302stack_allocate.subx.html new file mode 100644 index 00000000..73e18ff6 --- /dev/null +++ b/html/baremetal/302stack_allocate.subx.html @@ -0,0 +1,122 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/302stack_allocate.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.LineNr { } +.SpecialChar { color: #d70000; } +.CommentedCode { color: #8a8a8a; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/302stack_allocate.subx'>https://github.com/akkartik/mu/blob/main/baremetal/302stack_allocate.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># A function which pushes n zeros on the stack.</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># Really only intended to be called from code generated by mu.subx (for array</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># vars on the stack).</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span>== code +<span id="L6" class="LineNr"> 6 </span> +<span id="L7" class="LineNr"> 7 </span><span class="CommentedCode">#? Entry:</span> +<span id="L8" class="LineNr"> 8 </span><span class="CommentedCode">#? # . prologue</span> +<span id="L9" class="LineNr"> 9 </span><span class="CommentedCode">#? 89/<- %ebp 4/r32/esp</span> +<span id="L10" class="LineNr">10 </span><span class="CommentedCode">#? #</span> +<span id="L11" class="LineNr">11 </span><span class="CommentedCode">#? 68/push 0xfcfdfeff/imm32</span> +<span id="L12" class="LineNr">12 </span><span class="CommentedCode">#? b8/copy-to-eax 0x34353637/imm32</span> +<span id="L13" class="LineNr">13 </span><span class="CommentedCode">#? $dump-stack0:</span> +<span id="L14" class="LineNr">14 </span><span class="CommentedCode">#? (push-n-zero-bytes 4)</span> +<span id="L15" class="LineNr">15 </span><span class="CommentedCode">#? 68/push 0x20/imm32</span> +<span id="L16" class="LineNr">16 </span><span class="CommentedCode">#? $dump-stack9:</span> +<span id="L17" class="LineNr">17 </span><span class="CommentedCode">#? b8/copy-to-eax 1/imm32/exit</span> +<span id="L18" class="LineNr">18 </span><span class="CommentedCode">#? cd/syscall 0x80/imm8</span> +<span id="L19" class="LineNr">19 </span> +<span id="L20" class="LineNr">20 </span><span class="subxComment"># This is not a regular function, so it won't be idiomatic.</span> +<span id="L21" class="LineNr">21 </span><span class="subxComment"># Registers must be properly restored.</span> +<span id="L22" class="LineNr">22 </span><span class="subxComment"># Registers can be spilled, but that modifies the stack and needs to be</span> +<span id="L23" class="LineNr">23 </span><span class="subxComment"># cleaned up.</span> +<span id="L24" class="LineNr">24 </span> +<span id="L25" class="LineNr">25 </span><span class="subxComment"># Overhead:</span> +<span id="L26" class="LineNr">26 </span><span class="subxComment"># 62 + n*6 instructions to push n bytes.</span> +<span id="L27" class="LineNr">27 </span><span class="subxComment"># If we just emitted code to push n zeroes, it would be:</span> +<span id="L28" class="LineNr">28 </span><span class="subxComment"># 5 bytes for 4 zero bytes, so 1.25 bytes per zero. And that's not even</span> +<span id="L29" class="LineNr">29 </span><span class="subxComment"># instructions.</span> +<span id="L30" class="LineNr">30 </span><span class="subxComment"># But on the other hand it would destroy the instruction cache, where this</span> +<span id="L31" class="LineNr">31 </span><span class="subxComment"># approach requires 15 instructions, fixed.</span> +<span id="L32" class="LineNr">32 </span> +<span id="L33" class="LineNr">33 </span><span class="subxComment"># n must be positive</span> +<span id="L34" class="LineNr">34 </span><span class="subxFunction">push-n-zero-bytes</span>: <span class="subxComment"># n: int</span> +<span id="L35" class="LineNr">35 </span><span class="Constant">$push-n-zero-bytes:prologue</span>: +<span id="L36" class="LineNr">36 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L56'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># spill ebp without affecting stack</span> +<span id="L37" class="LineNr">37 </span> 89/<- %ebp 4/r32/esp +<span id="L38" class="LineNr">38 </span><span class="Constant">$push-n-zero-bytes:copy-ra</span>: +<span id="L39" class="LineNr">39 </span> <span class="subxComment"># -- esp = ebp</span> +<span id="L40" class="LineNr">40 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L60'>Push-n-zero-bytes-eax</a></span> 0/r32/eax +<span id="L41" class="LineNr">41 </span> 8b/-> *esp 0/r32/eax +<span id="L42" class="LineNr">42 </span> 2b/subtract *(ebp+4) 4/r32/esp +<span id="L43" class="LineNr">43 </span> <span class="subxComment"># -- esp+n = ebp</span> +<span id="L44" class="LineNr">44 </span> 89/<- *esp 0/r32/eax +<span id="L45" class="LineNr">45 </span> 8b/-> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L60'>Push-n-zero-bytes-eax</a></span> 0/r32/eax +<span id="L46" class="LineNr">46 </span><span class="Constant">$push-n-zero-bytes:bulk-cleaning</span>: +<span id="L47" class="LineNr">47 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> 4/r32/esp +<span id="L48" class="LineNr">48 </span> 81 0/subop/add *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> 4/imm32 +<span id="L49" class="LineNr">49 </span> 81 0/subop/add *(ebp+4) 4/imm32 +<span id="L50" class="LineNr">50 </span> (<a href='120allocate.subx.html#L6'>zero-out</a> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> *(ebp+4)) <span class="subxComment"># n+4</span> +<span id="L51" class="LineNr">51 </span><span class="Constant">$push-n-zero-bytes:epilogue</span>: +<span id="L52" class="LineNr">52 </span> 8b/-> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L56'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># restore spill</span> +<span id="L53" class="LineNr">53 </span> c3/return +<span id="L54" class="LineNr">54 </span> +<span id="L55" class="LineNr">55 </span>== data +<span id="L56" class="LineNr">56 </span><span class="SpecialChar">Push-n-zero-bytes-ebp</span>: <span class="subxComment"># (addr int)</span> +<span id="L57" class="LineNr">57 </span> 0/imm32 +<span id="L58" class="LineNr">58 </span><span class="SpecialChar">Push-n-zero-bytes-esp</span>: <span class="subxComment"># (addr int)</span> +<span id="L59" class="LineNr">59 </span> 0/imm32 +<span id="L60" class="LineNr">60 </span><span class="SpecialChar">Push-n-zero-bytes-eax</span>: +<span id="L61" class="LineNr">61 </span> 0/imm32 +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/309stream.subx.html b/html/baremetal/309stream.subx.html new file mode 100644 index 00000000..db4e04e1 --- /dev/null +++ b/html/baremetal/309stream.subx.html @@ -0,0 +1,260 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/309stream.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/309stream.subx'>https://github.com/akkartik/mu/blob/main/baremetal/309stream.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Some unsafe methods not intended to be used directly in SubX, only through</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># Mu after proper type-checking.</span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span>== code +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="subxFunction">stream-empty?</span>: <span class="subxComment"># s: (addr stream _) -> result/eax: boolean</span> +<span id="L7" class="LineNr"> 7 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L8" class="LineNr"> 8 </span> 55/push-ebp +<span id="L9" class="LineNr"> 9 </span> 89/<- %ebp 4/r32/esp +<span id="L10" class="LineNr"> 10 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L11" class="LineNr"> 11 </span> 51/push-ecx +<span id="L12" class="LineNr"> 12 </span> 56/push-esi +<span id="L13" class="LineNr"> 13 </span> <span class="subxComment"># result = false</span> +<span id="L14" class="LineNr"> 14 </span> b8/copy-to-eax 0/imm32/false +<span id="L15" class="LineNr"> 15 </span> <span class="subxComment"># esi = s</span> +<span id="L16" class="LineNr"> 16 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L17" class="LineNr"> 17 </span> <span class="subxComment"># return s->read >= s->write</span> +<span id="L18" class="LineNr"> 18 </span> 8b/-> *esi 1/r32/ecx +<span id="L19" class="LineNr"> 19 </span> 39/compare-with *(esi+4) 1/r32/ecx +<span id="L20" class="LineNr"> 20 </span> 0f 9d/set-if->= %al +<span id="L21" class="LineNr"> 21 </span><span class="Constant">$stream-empty?:end</span>: +<span id="L22" class="LineNr"> 22 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L23" class="LineNr"> 23 </span> 5e/pop-to-esi +<span id="L24" class="LineNr"> 24 </span> 59/pop-to-ecx +<span id="L25" class="LineNr"> 25 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L26" class="LineNr"> 26 </span> 89/<- %esp 5/r32/ebp +<span id="L27" class="LineNr"> 27 </span> 5d/pop-to-ebp +<span id="L28" class="LineNr"> 28 </span> c3/return +<span id="L29" class="LineNr"> 29 </span> +<span id="L30" class="LineNr"> 30 </span><span class="subxFunction">stream-full?</span>: <span class="subxComment"># s: (addr stream _) -> result/eax: boolean</span> +<span id="L31" class="LineNr"> 31 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L32" class="LineNr"> 32 </span> 55/push-ebp +<span id="L33" class="LineNr"> 33 </span> 89/<- %ebp 4/r32/esp +<span id="L34" class="LineNr"> 34 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L35" class="LineNr"> 35 </span> 51/push-ecx +<span id="L36" class="LineNr"> 36 </span> 56/push-esi +<span id="L37" class="LineNr"> 37 </span> <span class="subxComment"># result = false</span> +<span id="L38" class="LineNr"> 38 </span> b8/copy-to-eax 0/imm32/false +<span id="L39" class="LineNr"> 39 </span> <span class="subxComment"># esi = s</span> +<span id="L40" class="LineNr"> 40 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L41" class="LineNr"> 41 </span> <span class="subxComment"># return s->write >= s->size</span> +<span id="L42" class="LineNr"> 42 </span> 8b/-> *(esi+8) 1/r32/ecx +<span id="L43" class="LineNr"> 43 </span> 39/compare-with *esi 1/r32/ecx +<span id="L44" class="LineNr"> 44 </span> 0f 9d/set-if->= %al +<span id="L45" class="LineNr"> 45 </span><span class="Constant">$stream-full?:end</span>: +<span id="L46" class="LineNr"> 46 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L47" class="LineNr"> 47 </span> 5e/pop-to-esi +<span id="L48" class="LineNr"> 48 </span> 59/pop-to-ecx +<span id="L49" class="LineNr"> 49 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L50" class="LineNr"> 50 </span> 89/<- %esp 5/r32/ebp +<span id="L51" class="LineNr"> 51 </span> 5d/pop-to-ebp +<span id="L52" class="LineNr"> 52 </span> c3/return +<span id="L53" class="LineNr"> 53 </span> +<span id="L54" class="LineNr"> 54 </span><span class="subxFunction">write-to-stream</span>: <span class="subxComment"># s: (addr stream _), in: (addr byte), n: int</span> +<span id="L55" class="LineNr"> 55 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L56" class="LineNr"> 56 </span> 55/push-ebp +<span id="L57" class="LineNr"> 57 </span> 89/<- %ebp 4/r32/esp +<span id="L58" class="LineNr"> 58 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L59" class="LineNr"> 59 </span> 50/push-eax +<span id="L60" class="LineNr"> 60 </span> 51/push-ecx +<span id="L61" class="LineNr"> 61 </span> 52/push-edx +<span id="L62" class="LineNr"> 62 </span> 53/push-ebx +<span id="L63" class="LineNr"> 63 </span> 57/push-edi +<span id="L64" class="LineNr"> 64 </span> <span class="subxComment"># edi = s</span> +<span id="L65" class="LineNr"> 65 </span> 8b/-> *(ebp+8) 7/r32/edi +<span id="L66" class="LineNr"> 66 </span> <span class="subxComment"># var swrite/edx: int = s->write</span> +<span id="L67" class="LineNr"> 67 </span> 8b/-> *edi 2/r32/edx +<span id="L68" class="LineNr"> 68 </span> <span class="subxComment"># if (swrite + n > s->size) return</span> +<span id="L69" class="LineNr"> 69 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L70" class="LineNr"> 70 </span> 01/add-to %ecx 2/r32/edx +<span id="L71" class="LineNr"> 71 </span> 3b/compare 1/r32/ecx *(edi+8) +<span id="L72" class="LineNr"> 72 </span> 0f 8f/jump-if-> $write-to-stream:end/disp32 <span class="subxComment"># TODO: abort</span> +<span id="L73" class="LineNr"> 73 </span> <span class="subxComment"># var out/edx: (addr byte) = s->data + s->write</span> +<span id="L74" class="LineNr"> 74 </span> 8d/copy-address *(edi+edx+0xc) 2/r32/edx +<span id="L75" class="LineNr"> 75 </span> <span class="subxComment"># var outend/ebx: (addr byte) = out + n</span> +<span id="L76" class="LineNr"> 76 </span> 8b/-> *(ebp+0x10) 3/r32/ebx +<span id="L77" class="LineNr"> 77 </span> 8d/copy-address *(edx+ebx) 3/r32/ebx +<span id="L78" class="LineNr"> 78 </span> <span class="subxComment"># eax = in</span> +<span id="L79" class="LineNr"> 79 </span> 8b/-> *(ebp+0xc) 0/r32/eax +<span id="L80" class="LineNr"> 80 </span> <span class="subxComment"># var inend/ecx: (addr byte) = in + n</span> +<span id="L81" class="LineNr"> 81 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L82" class="LineNr"> 82 </span> 8d/copy-address *(eax+ecx) 1/r32/ecx +<span id="L83" class="LineNr"> 83 </span> <span class="subxComment">#</span> +<span id="L84" class="LineNr"> 84 </span> (<a href='107trace.subx.html#L38'>_append-4</a> %edx %ebx %eax %ecx) <span class="subxComment"># => eax</span> +<span id="L85" class="LineNr"> 85 </span> <span class="subxComment"># s->write += n</span> +<span id="L86" class="LineNr"> 86 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L87" class="LineNr"> 87 </span> 01/add-to *edi 1/r32/ecx +<span id="L88" class="LineNr"> 88 </span><span class="Constant">$write-to-stream:end</span>: +<span id="L89" class="LineNr"> 89 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L90" class="LineNr"> 90 </span> 5f/pop-to-edi +<span id="L91" class="LineNr"> 91 </span> 5b/pop-to-ebx +<span id="L92" class="LineNr"> 92 </span> 5a/pop-to-edx +<span id="L93" class="LineNr"> 93 </span> 59/pop-to-ecx +<span id="L94" class="LineNr"> 94 </span> 58/pop-to-eax +<span id="L95" class="LineNr"> 95 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L96" class="LineNr"> 96 </span> 89/<- %esp 5/r32/ebp +<span id="L97" class="LineNr"> 97 </span> 5d/pop-to-ebp +<span id="L98" class="LineNr"> 98 </span> c3/return +<span id="L99" class="LineNr"> 99 </span> +<span id="L100" class="LineNr">100 </span><span class="subxFunction">read-from-stream</span>: <span class="subxComment"># s: (addr stream _), out: (addr byte), n: int</span> +<span id="L101" class="LineNr">101 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L102" class="LineNr">102 </span> 55/push-ebp +<span id="L103" class="LineNr">103 </span> 89/<- %ebp 4/r32/esp +<span id="L104" class="LineNr">104 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L105" class="LineNr">105 </span> 50/push-eax +<span id="L106" class="LineNr">106 </span> 51/push-ecx +<span id="L107" class="LineNr">107 </span> 52/push-edx +<span id="L108" class="LineNr">108 </span> 53/push-ebx +<span id="L109" class="LineNr">109 </span> 56/push-esi +<span id="L110" class="LineNr">110 </span> <span class="subxComment"># esi = s</span> +<span id="L111" class="LineNr">111 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L112" class="LineNr">112 </span> <span class="subxComment"># var sread/edx: int = s->read</span> +<span id="L113" class="LineNr">113 </span> 8b/-> *(esi+4) 2/r32/edx +<span id="L114" class="LineNr">114 </span> <span class="subxComment"># if (sread + n > s->write) return</span> +<span id="L115" class="LineNr">115 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L116" class="LineNr">116 </span> 01/add-to %ecx 2/r32/edx +<span id="L117" class="LineNr">117 </span> 3b/compare 1/r32/ecx *esi +<span id="L118" class="LineNr">118 </span> 0f 8f/jump-if-> $read-from-stream:end/disp32 <span class="subxComment"># TODO: abort</span> +<span id="L119" class="LineNr">119 </span> <span class="subxComment"># var in/edx: (addr byte) = s->data + s->read</span> +<span id="L120" class="LineNr">120 </span> 8d/copy-address *(esi+edx+0xc) 2/r32/edx +<span id="L121" class="LineNr">121 </span> <span class="subxComment"># var inend/ebx: (addr byte) = in + n</span> +<span id="L122" class="LineNr">122 </span> 8b/-> *(ebp+0x10) 3/r32/ebx +<span id="L123" class="LineNr">123 </span> 8d/copy-address *(edx+ebx) 3/r32/ebx +<span id="L124" class="LineNr">124 </span> <span class="subxComment"># eax = out</span> +<span id="L125" class="LineNr">125 </span> 8b/-> *(ebp+0xc) 0/r32/eax +<span id="L126" class="LineNr">126 </span> <span class="subxComment"># var outend/ecx: (addr byte) = out + n</span> +<span id="L127" class="LineNr">127 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L128" class="LineNr">128 </span> 8d/copy-address *(eax+ecx) 1/r32/ecx +<span id="L129" class="LineNr">129 </span> <span class="subxComment">#</span> +<span id="L130" class="LineNr">130 </span> (<a href='107trace.subx.html#L38'>_append-4</a> %eax %ecx %edx %ebx) <span class="subxComment"># => eax</span> +<span id="L131" class="LineNr">131 </span> <span class="subxComment"># s->read += n</span> +<span id="L132" class="LineNr">132 </span> 8b/-> *(ebp+0x10) 1/r32/ecx +<span id="L133" class="LineNr">133 </span> 01/add-to *(esi+4) 1/r32/ecx +<span id="L134" class="LineNr">134 </span><span class="Constant">$read-from-stream:end</span>: +<span id="L135" class="LineNr">135 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L136" class="LineNr">136 </span> 5e/pop-to-esi +<span id="L137" class="LineNr">137 </span> 5b/pop-to-ebx +<span id="L138" class="LineNr">138 </span> 5a/pop-to-edx +<span id="L139" class="LineNr">139 </span> 59/pop-to-ecx +<span id="L140" class="LineNr">140 </span> 58/pop-to-eax +<span id="L141" class="LineNr">141 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L142" class="LineNr">142 </span> 89/<- %esp 5/r32/ebp +<span id="L143" class="LineNr">143 </span> 5d/pop-to-ebp +<span id="L144" class="LineNr">144 </span> c3/return +<span id="L145" class="LineNr">145 </span> +<span id="L146" class="LineNr">146 </span><span class="subxFunction">stream-first</span>: <span class="subxComment"># s: (addr stream byte) -> result/eax: byte</span> +<span id="L147" class="LineNr">147 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L148" class="LineNr">148 </span> 55/push-ebp +<span id="L149" class="LineNr">149 </span> 89/<- %ebp 4/r32/esp +<span id="L150" class="LineNr">150 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L151" class="LineNr">151 </span> 51/push-ecx +<span id="L152" class="LineNr">152 </span> 56/push-esi +<span id="L153" class="LineNr">153 </span> <span class="subxComment"># result = false</span> +<span id="L154" class="LineNr">154 </span> b8/copy-to-eax 0/imm32 +<span id="L155" class="LineNr">155 </span> <span class="subxComment"># esi = s</span> +<span id="L156" class="LineNr">156 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L157" class="LineNr">157 </span> <span class="subxComment"># var idx/ecx: int = s->read</span> +<span id="L158" class="LineNr">158 </span> 8b/-> *(esi+4) 1/r32/ecx +<span id="L159" class="LineNr">159 </span> <span class="subxComment"># if idx >= s->write return 0</span> +<span id="L160" class="LineNr">160 </span> 3b/compare-with 1/r32/ecx *esi +<span id="L161" class="LineNr">161 </span> 7d/jump-if->= $stream-first:end/disp8 +<span id="L162" class="LineNr">162 </span> <span class="subxComment"># result = s->data[idx]</span> +<span id="L163" class="LineNr">163 </span> 8a/byte-> *(esi+ecx+0xc) 0/r32/AL +<span id="L164" class="LineNr">164 </span><span class="Constant">$stream-first:end</span>: +<span id="L165" class="LineNr">165 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L166" class="LineNr">166 </span> 5e/pop-to-esi +<span id="L167" class="LineNr">167 </span> 59/pop-to-ecx +<span id="L168" class="LineNr">168 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L169" class="LineNr">169 </span> 89/<- %esp 5/r32/ebp +<span id="L170" class="LineNr">170 </span> 5d/pop-to-ebp +<span id="L171" class="LineNr">171 </span> c3/return +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span><span class="subxFunction">stream-final</span>: <span class="subxComment"># s: (addr stream byte) -> result/eax: byte</span> +<span id="L174" class="LineNr">174 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L175" class="LineNr">175 </span> 55/push-ebp +<span id="L176" class="LineNr">176 </span> 89/<- %ebp 4/r32/esp +<span id="L177" class="LineNr">177 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L178" class="LineNr">178 </span> 51/push-ecx +<span id="L179" class="LineNr">179 </span> 56/push-esi +<span id="L180" class="LineNr">180 </span> <span class="subxComment"># result = false</span> +<span id="L181" class="LineNr">181 </span> b8/copy-to-eax 0/imm32 +<span id="L182" class="LineNr">182 </span> <span class="subxComment"># esi = s</span> +<span id="L183" class="LineNr">183 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L184" class="LineNr">184 </span> <span class="subxComment"># var max/ecx: int = s->write</span> +<span id="L185" class="LineNr">185 </span> 8b/-> *esi 1/r32/ecx +<span id="L186" class="LineNr">186 </span> <span class="subxComment"># if s->read >= max return 0</span> +<span id="L187" class="LineNr">187 </span> 39/compare-with *(esi+4) 1/r32/ecx +<span id="L188" class="LineNr">188 </span> 7d/jump-if->= $stream-final:end/disp8 +<span id="L189" class="LineNr">189 </span> <span class="subxComment"># var idx/ecx: int = max - 1</span> +<span id="L190" class="LineNr">190 </span> 49/decrement-ecx +<span id="L191" class="LineNr">191 </span> <span class="subxComment"># result = s->data[idx]</span> +<span id="L192" class="LineNr">192 </span> 8a/byte-> *(esi+ecx+0xc) 0/r32/AL +<span id="L193" class="LineNr">193 </span><span class="Constant">$stream-final:end</span>: +<span id="L194" class="LineNr">194 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L195" class="LineNr">195 </span> 5e/pop-to-esi +<span id="L196" class="LineNr">196 </span> 59/pop-to-ecx +<span id="L197" class="LineNr">197 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L198" class="LineNr">198 </span> 89/<- %esp 5/r32/ebp +<span id="L199" class="LineNr">199 </span> 5d/pop-to-ebp +<span id="L200" class="LineNr">200 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/313index-bounds-check.subx.html b/html/baremetal/313index-bounds-check.subx.html new file mode 100644 index 00000000..e364e785 --- /dev/null +++ b/html/baremetal/313index-bounds-check.subx.html @@ -0,0 +1,71 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/313index-bounds-check.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.subxMinorFunction { color: #875f5f; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/313index-bounds-check.subx'>https://github.com/akkartik/mu/blob/main/baremetal/313index-bounds-check.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># TODO: bring this back</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="subxMinorFunction">__check-mu-array-bounds</span>: <span class="subxComment"># index: int, elem-size: int, arr-size: int, function-name: (addr array byte), array-name: (addr array byte)</span> +<span id="L4" class="LineNr"> 4 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L5" class="LineNr"> 5 </span> 55/push-ebp +<span id="L6" class="LineNr"> 6 </span> 89/<- %ebp 4/r32/esp +<span id="L7" class="LineNr"> 7 </span><span class="Constant">$__check-mu-array-bounds:end</span>: +<span id="L8" class="LineNr"> 8 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L9" class="LineNr"> 9 </span> 89/<- %esp 5/r32/ebp +<span id="L10" class="LineNr">10 </span> 5d/pop-to-ebp +<span id="L11" class="LineNr">11 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/400.mu.html b/html/baremetal/400.mu.html index a2ee97a8..713534af 100644 --- a/html/baremetal/400.mu.html +++ b/html/baremetal/400.mu.html @@ -15,6 +15,7 @@ body { font-size:12pt; font-family: monospace; color: #000000; background-color: a { color:inherit; } * { font-size:12pt; font-size: 1em; } .LineNr { } +.Constant { color: #008787; } .PreProc { color: #c000c0; } --> </style> @@ -52,6 +53,13 @@ if ('onhashchange' in window) { <a href='https://github.com/akkartik/mu/blob/main/baremetal/400.mu'>https://github.com/akkartik/mu/blob/main/baremetal/400.mu</a> <pre id='vimCodeElement'> <span id="L1" class="LineNr">1 </span><span class="PreProc">sig</span> <a href='101screen.subx.html#L3'>pixel</a> screen: (addr screen), x: int, y: int, color: int +<span id="L2" class="LineNr">2 </span><span class="PreProc">sig</span> <a href='102keyboard.subx.html#L3'>read-key</a> kbd: (addr keyboard)<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: byte +<span id="L3" class="LineNr">3 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L1'>draw-grapheme</a> screen: (addr screen), g: grapheme, x: int, y: int, color: int +<span id="L4" class="LineNr">4 </span> +<span id="L5" class="LineNr">5 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L5'>write</a> f: (addr stream byte), s: (addr array byte) +<span id="L6" class="LineNr">6 </span><span class="PreProc">sig</span> <a href='115write-byte.subx.html#L6'>append-byte</a> f: (addr stream byte), n: int +<span id="L7" class="LineNr">7 </span><span class="PreProc">sig</span> <a href='112read-byte.subx.html#L5'>read-byte</a> s: (addr stream byte)<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: byte +<span id="L8" class="LineNr">8 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L6'>stream-empty?</a> s: (addr stream _)<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: boolean </pre> </body> </html> diff --git a/html/baremetal/403unicode.mu.html b/html/baremetal/403unicode.mu.html new file mode 100644 index 00000000..35622877 --- /dev/null +++ b/html/baremetal/403unicode.mu.html @@ -0,0 +1,255 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/403unicode.mu</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.muComment { color: #005faf; } +.LineNr { } +.SpecialChar { color: #d70000; } +.Constant { color: #008787; } +.muFunction { color: #af5f00; text-decoration: underline; } +.Delimiter { color: #c000c0; } +.PreProc { color: #c000c0; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/403unicode.mu'>https://github.com/akkartik/mu/blob/main/baremetal/403unicode.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Helpers for Unicode.</span> +<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="muComment"># Mu has no characters, only code points and graphemes.</span> +<span id="L4" class="LineNr"> 4 </span><span class="muComment"># Code points are the indivisible atoms of text streams.</span> +<span id="L5" class="LineNr"> 5 </span><span class="muComment"># <a href="https://en.wikipedia.org/wiki/Code_point">https://en.wikipedia.org/wiki/Code_point</a></span> +<span id="L6" class="LineNr"> 6 </span><span class="muComment"># Graphemes are the smallest self-contained unit of text.</span> +<span id="L7" class="LineNr"> 7 </span><span class="muComment"># Graphemes may consist of multiple code points.</span> +<span id="L8" class="LineNr"> 8 </span><span class="muComment">#</span> +<span id="L9" class="LineNr"> 9 </span><span class="muComment"># Mu graphemes are always represented in utf-8, and they are required to fit</span> +<span id="L10" class="LineNr"> 10 </span><span class="muComment"># in 4 bytes.</span> +<span id="L11" class="LineNr"> 11 </span><span class="muComment">#</span> +<span id="L12" class="LineNr"> 12 </span><span class="muComment"># Mu doesn't currently support combining code points, or graphemes made of</span> +<span id="L13" class="LineNr"> 13 </span><span class="muComment"># multiple code points. One day we will.</span> +<span id="L14" class="LineNr"> 14 </span><span class="muComment"># We also don't currently support code points that translate into multiple</span> +<span id="L15" class="LineNr"> 15 </span><span class="muComment"># or wide graphemes. (In particular, Tab will never be supported.)</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="muComment"># transliterated from tb_utf8_unicode_to_char in <a href="https://github.com/nsf/termbox">https://github.com/nsf/termbox</a></span> +<span id="L18" class="LineNr"> 18 </span><span class="muComment"># <a href="https://wiki.tcl-lang.org/page/UTF%2D8+bit+by+bit">https://wiki.tcl-lang.org/page/UTF%2D8+bit+by+bit</a> explains the algorithm</span> +<span id="L19" class="LineNr"> 19 </span><span class="muComment">#</span> +<span id="L20" class="LineNr"> 20 </span><span class="muComment"># The day we want to support combining characters, this function will need to</span> +<span id="L21" class="LineNr"> 21 </span><span class="muComment"># take multiple code points. Or something.</span> +<span id="L22" class="LineNr"> 22 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L22'>to-grapheme</a></span> in: code-point<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span> +<span id="L23" class="LineNr"> 23 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy in +<span id="L24" class="LineNr"> 24 </span> <span class="PreProc">var</span> num-trailers/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L25" class="LineNr"> 25 </span> <span class="PreProc">var</span> first/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L26" class="LineNr"> 26 </span> $to-grapheme:compute-length: <span class="Delimiter">{</span> +<span id="L27" class="LineNr"> 27 </span> <span class="muComment"># single byte: just return it</span> +<span id="L28" class="LineNr"> 28 </span> compare c, <span class="Constant">0x7f</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">{</span> +<span id="L30" class="LineNr"> 30 </span> <span class="PreProc">break-if-></span> +<span id="L31" class="LineNr"> 31 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar"><-</span> copy c +<span id="L32" class="LineNr"> 32 </span> <span class="PreProc">return</span> g +<span id="L33" class="LineNr"> 33 </span> <span class="Delimiter">}</span> +<span id="L34" class="LineNr"> 34 </span> <span class="muComment"># 2 bytes</span> +<span id="L35" class="LineNr"> 35 </span> compare c, <span class="Constant">0x7ff</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Delimiter">{</span> +<span id="L37" class="LineNr"> 37 </span> <span class="PreProc">break-if-></span> +<span id="L38" class="LineNr"> 38 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> +<span id="L39" class="LineNr"> 39 </span> first <span class="SpecialChar"><-</span> copy <span class="Constant">0xc0</span> +<span id="L40" class="LineNr"> 40 </span> <span class="PreProc">break</span> $to-grapheme:compute-length +<span id="L41" class="LineNr"> 41 </span> <span class="Delimiter">}</span> +<span id="L42" class="LineNr"> 42 </span> <span class="muComment"># 3 bytes</span> +<span id="L43" class="LineNr"> 43 </span> compare c, <span class="Constant">0xffff</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">{</span> +<span id="L45" class="LineNr"> 45 </span> <span class="PreProc">break-if-></span> +<span id="L46" class="LineNr"> 46 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">2</span> +<span id="L47" class="LineNr"> 47 </span> first <span class="SpecialChar"><-</span> copy <span class="Constant">0xe0</span> +<span id="L48" class="LineNr"> 48 </span> <span class="PreProc">break</span> $to-grapheme:compute-length +<span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">}</span> +<span id="L50" class="LineNr"> 50 </span> <span class="muComment"># 4 bytes</span> +<span id="L51" class="LineNr"> 51 </span> compare c, <span class="Constant">0x1fffff</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Delimiter">{</span> +<span id="L53" class="LineNr"> 53 </span> <span class="PreProc">break-if-></span> +<span id="L54" class="LineNr"> 54 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">3</span> +<span id="L55" class="LineNr"> 55 </span> first <span class="SpecialChar"><-</span> copy <span class="Constant">0xf0</span> +<span id="L56" class="LineNr"> 56 </span> <span class="PreProc">break</span> $to-grapheme:compute-length +<span id="L57" class="LineNr"> 57 </span> <span class="Delimiter">}</span> +<span id="L58" class="LineNr"> 58 </span> <span class="muComment"># more than 4 bytes: unsupported</span> +<span id="L59" class="LineNr"> 59 </span> <span class="muComment"># TODO: print error message to stderr</span> +<span id="L60" class="LineNr"> 60 </span> compare c, <span class="Constant">0x1fffff</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">{</span> +<span id="L62" class="LineNr"> 62 </span> <span class="PreProc">break-if-></span> +<span id="L63" class="LineNr"> 63 </span> <span class="PreProc">return</span> <span class="Constant">0</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Delimiter">}</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Delimiter">}</span> +<span id="L66" class="LineNr"> 66 </span> <span class="muComment"># emit trailer bytes, 6 bits from 'in', first two bits '10'</span> +<span id="L67" class="LineNr"> 67 </span> <span class="PreProc">var</span> result/<span class="Constant">edi</span>: grapheme <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L68" class="LineNr"> 68 </span> <span class="Delimiter">{</span> +<span id="L69" class="LineNr"> 69 </span> compare num-trailers, <span class="Constant">0</span> +<span id="L70" class="LineNr"> 70 </span> <span class="PreProc">break-if-<=</span> +<span id="L71" class="LineNr"> 71 </span> <span class="PreProc">var</span> tmp/<span class="Constant">esi</span>: int <span class="SpecialChar"><-</span> copy c +<span id="L72" class="LineNr"> 72 </span> tmp <span class="SpecialChar"><-</span> and <span class="Constant">0x3f</span> +<span id="L73" class="LineNr"> 73 </span> tmp <span class="SpecialChar"><-</span> or <span class="Constant">0x80</span> +<span id="L74" class="LineNr"> 74 </span> result <span class="SpecialChar"><-</span> shift-left <span class="Constant">8</span> +<span id="L75" class="LineNr"> 75 </span> result <span class="SpecialChar"><-</span> or tmp +<span id="L76" class="LineNr"> 76 </span> <span class="muComment"># update loop state</span> +<span id="L77" class="LineNr"> 77 </span> c <span class="SpecialChar"><-</span> shift-right <span class="Constant">6</span> +<span id="L78" class="LineNr"> 78 </span> num-trailers <span class="SpecialChar"><-</span> decrement +<span id="L79" class="LineNr"> 79 </span> <span class="PreProc">loop</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span> +<span id="L81" class="LineNr"> 81 </span> <span class="muComment"># emit engine</span> +<span id="L82" class="LineNr"> 82 </span> result <span class="SpecialChar"><-</span> shift-left <span class="Constant">8</span> +<span id="L83" class="LineNr"> 83 </span> result <span class="SpecialChar"><-</span> or c +<span id="L84" class="LineNr"> 84 </span> result <span class="SpecialChar"><-</span> or first +<span id="L85" class="LineNr"> 85 </span> <span class="muComment">#</span> +<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">return</span> result +<span id="L87" class="LineNr"> 87 </span><span class="Delimiter">}</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="muComment"># TODO: bring in tests once we have check-ints-equal</span> +<span id="L90" class="LineNr"> 90 </span> +<span id="L91" class="LineNr"> 91 </span><span class="muComment"># read the next grapheme from a stream of bytes</span> +<span id="L92" class="LineNr"> 92 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L92'>read-grapheme</a></span> in: (addr stream byte)<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span> +<span id="L93" class="LineNr"> 93 </span> <span class="muComment"># if at eof, return EOF</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Delimiter">{</span> +<span id="L95" class="LineNr"> 95 </span> <span class="PreProc">var</span> eof?/<span class="Constant">eax</span>: boolean <span class="SpecialChar"><-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> in +<span id="L96" class="LineNr"> 96 </span> compare eof?, <span class="Constant">0</span> <span class="muComment"># false</span> +<span id="L97" class="LineNr"> 97 </span> <span class="PreProc">break-if-=</span> +<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">return</span> <span class="Constant">0xffffffff</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> +<span id="L100" class="LineNr">100 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='112read-byte.subx.html#L5'>read-byte</a> in +<span id="L101" class="LineNr">101 </span> <span class="PreProc">var</span> num-trailers/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L102" class="LineNr">102 </span> $read-grapheme:compute-length: <span class="Delimiter">{</span> +<span id="L103" class="LineNr">103 </span> <span class="muComment"># single byte: just return it</span> +<span id="L104" class="LineNr">104 </span> compare c, <span class="Constant">0xc0</span> +<span id="L105" class="LineNr">105 </span> <span class="Delimiter">{</span> +<span id="L106" class="LineNr">106 </span> <span class="PreProc">break-if->=</span> +<span id="L107" class="LineNr">107 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar"><-</span> copy c +<span id="L108" class="LineNr">108 </span> <span class="PreProc">return</span> g +<span id="L109" class="LineNr">109 </span> <span class="Delimiter">}</span> +<span id="L110" class="LineNr">110 </span> compare c, <span class="Constant">0xfe</span> +<span id="L111" class="LineNr">111 </span> <span class="Delimiter">{</span> +<span id="L112" class="LineNr">112 </span> <span class="PreProc">break-if-<</span> +<span id="L113" class="LineNr">113 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar"><-</span> copy c +<span id="L114" class="LineNr">114 </span> <span class="PreProc">return</span> g +<span id="L115" class="LineNr">115 </span> <span class="Delimiter">}</span> +<span id="L116" class="LineNr">116 </span> <span class="muComment"># 2 bytes</span> +<span id="L117" class="LineNr">117 </span> compare c, <span class="Constant">0xe0</span> +<span id="L118" class="LineNr">118 </span> <span class="Delimiter">{</span> +<span id="L119" class="LineNr">119 </span> <span class="PreProc">break-if->=</span> +<span id="L120" class="LineNr">120 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> +<span id="L121" class="LineNr">121 </span> <span class="PreProc">break</span> $read-grapheme:compute-length +<span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> +<span id="L123" class="LineNr">123 </span> <span class="muComment"># 3 bytes</span> +<span id="L124" class="LineNr">124 </span> compare c, <span class="Constant">0xf0</span> +<span id="L125" class="LineNr">125 </span> <span class="Delimiter">{</span> +<span id="L126" class="LineNr">126 </span> <span class="PreProc">break-if->=</span> +<span id="L127" class="LineNr">127 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">2</span> +<span id="L128" class="LineNr">128 </span> <span class="PreProc">break</span> $read-grapheme:compute-length +<span id="L129" class="LineNr">129 </span> <span class="Delimiter">}</span> +<span id="L130" class="LineNr">130 </span> <span class="muComment"># 4 bytes</span> +<span id="L131" class="LineNr">131 </span> compare c, <span class="Constant">0xf8</span> +<span id="L132" class="LineNr">132 </span> <span class="Delimiter">{</span> +<span id="L133" class="LineNr">133 </span> <span class="PreProc">break-if->=</span> +<span id="L134" class="LineNr">134 </span> num-trailers <span class="SpecialChar"><-</span> copy <span class="Constant">3</span> +<span id="L135" class="LineNr">135 </span> <span class="PreProc">break</span> $read-grapheme:compute-length +<span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span> +<span id="L137" class="LineNr">137 </span> <span class="muComment"># TODO: print error message</span> +<span id="L138" class="LineNr">138 </span> <span class="PreProc">return</span> <span class="Constant">0</span> +<span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> +<span id="L140" class="LineNr">140 </span> <span class="muComment"># prepend trailer bytes</span> +<span id="L141" class="LineNr">141 </span> <span class="PreProc">var</span> result/<span class="Constant">edi</span>: grapheme <span class="SpecialChar"><-</span> copy c +<span id="L142" class="LineNr">142 </span> <span class="PreProc">var</span> num-byte-shifts/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> +<span id="L143" class="LineNr">143 </span> <span class="Delimiter">{</span> +<span id="L144" class="LineNr">144 </span> compare num-trailers, <span class="Constant">0</span> +<span id="L145" class="LineNr">145 </span> <span class="PreProc">break-if-<=</span> +<span id="L146" class="LineNr">146 </span> <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='112read-byte.subx.html#L5'>read-byte</a> in +<span id="L147" class="LineNr">147 </span> <span class="PreProc">var</span> tmp2/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy tmp +<span id="L148" class="LineNr">148 </span> tmp2 <span class="SpecialChar"><-</span> <a href='403unicode.mu.html#L159'>shift-left-bytes</a> tmp2, num-byte-shifts +<span id="L149" class="LineNr">149 </span> result <span class="SpecialChar"><-</span> or tmp2 +<span id="L150" class="LineNr">150 </span> <span class="muComment"># update loop state</span> +<span id="L151" class="LineNr">151 </span> num-byte-shifts <span class="SpecialChar"><-</span> increment +<span id="L152" class="LineNr">152 </span> num-trailers <span class="SpecialChar"><-</span> decrement +<span id="L153" class="LineNr">153 </span> <span class="PreProc">loop</span> +<span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span> +<span id="L155" class="LineNr">155 </span> <span class="PreProc">return</span> result +<span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span> +<span id="L157" class="LineNr">157 </span> +<span id="L158" class="LineNr">158 </span><span class="muComment"># needed because available primitives only shift by a literal/constant number of bits</span> +<span id="L159" class="LineNr">159 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L159'>shift-left-bytes</a></span> n: int, k: int<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span> +<span id="L160" class="LineNr">160 </span> <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L161" class="LineNr">161 </span> <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy n +<span id="L162" class="LineNr">162 </span> <span class="Delimiter">{</span> +<span id="L163" class="LineNr">163 </span> compare i, k +<span id="L164" class="LineNr">164 </span> <span class="PreProc">break-if->=</span> +<span id="L165" class="LineNr">165 </span> compare i, <span class="Constant">4</span> <span class="muComment"># only 4 bytes in 32 bits</span> +<span id="L166" class="LineNr">166 </span> <span class="PreProc">break-if->=</span> +<span id="L167" class="LineNr">167 </span> result <span class="SpecialChar"><-</span> shift-left <span class="Constant">8</span> +<span id="L168" class="LineNr">168 </span> i <span class="SpecialChar"><-</span> increment +<span id="L169" class="LineNr">169 </span> <span class="PreProc">loop</span> +<span id="L170" class="LineNr">170 </span> <span class="Delimiter">}</span> +<span id="L171" class="LineNr">171 </span> <span class="PreProc">return</span> result +<span id="L172" class="LineNr">172 </span><span class="Delimiter">}</span> +<span id="L173" class="LineNr">173 </span> +<span id="L174" class="LineNr">174 </span><span class="muComment"># write a grapheme to a stream of bytes</span> +<span id="L175" class="LineNr">175 </span><span class="muComment"># this is like write-to-stream, except we skip leading 0 bytes</span> +<span id="L176" class="LineNr">176 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L176'>write-grapheme</a></span> out: (addr stream byte), g: grapheme <span class="Delimiter">{</span> +<span id="L177" class="LineNr">177 </span>$write-grapheme:body: <span class="Delimiter">{</span> +<span id="L178" class="LineNr">178 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy g +<span id="L179" class="LineNr">179 </span> <a href='115write-byte.subx.html#L6'>append-byte</a> out, c <span class="muComment"># first byte is always written</span> +<span id="L180" class="LineNr">180 </span> c <span class="SpecialChar"><-</span> shift-right <span class="Constant">8</span> +<span id="L181" class="LineNr">181 </span> compare c, <span class="Constant">0</span> +<span id="L182" class="LineNr">182 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body +<span id="L183" class="LineNr">183 </span> <a href='115write-byte.subx.html#L6'>append-byte</a> out, c +<span id="L184" class="LineNr">184 </span> c <span class="SpecialChar"><-</span> shift-right <span class="Constant">8</span> +<span id="L185" class="LineNr">185 </span> compare c, <span class="Constant">0</span> +<span id="L186" class="LineNr">186 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body +<span id="L187" class="LineNr">187 </span> <a href='115write-byte.subx.html#L6'>append-byte</a> out, c +<span id="L188" class="LineNr">188 </span> c <span class="SpecialChar"><-</span> shift-right <span class="Constant">8</span> +<span id="L189" class="LineNr">189 </span> compare c, <span class="Constant">0</span> +<span id="L190" class="LineNr">190 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body +<span id="L191" class="LineNr">191 </span> <a href='115write-byte.subx.html#L6'>append-byte</a> out, c +<span id="L192" class="LineNr">192 </span><span class="Delimiter">}</span> +<span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/501draw-text-rightward.mu.html b/html/baremetal/501draw-text-rightward.mu.html new file mode 100644 index 00000000..be906a43 --- /dev/null +++ b/html/baremetal/501draw-text-rightward.mu.html @@ -0,0 +1,75 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/501draw-text-rightward.mu</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.muComment { color: #005faf; } +.LineNr { } +.SpecialChar { color: #d70000; } +.Delimiter { color: #c000c0; } +.muFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +.PreProc { color: #c000c0; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/501draw-text-rightward.mu'>https://github.com/akkartik/mu/blob/main/baremetal/501draw-text-rightward.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text-rightward.mu.html#L1'>draw-text-rightward</a></span> screen: (addr screen), text: (addr array byte), x: int, y: int, color: int <span class="Delimiter">{</span> +<span id="L2" class="LineNr"> 2 </span> <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>) +<span id="L3" class="LineNr"> 3 </span> <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar"><-</span> address stream-storage +<span id="L4" class="LineNr"> 4 </span> <a href='108write.subx.html#L5'>write</a> stream, text +<span id="L5" class="LineNr"> 5 </span> <span class="Delimiter">{</span> +<span id="L6" class="LineNr"> 6 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar"><-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream +<span id="L7" class="LineNr"> 7 </span> compare g, <span class="Constant">0xffffffff</span> <span class="muComment"># end-of-file</span> +<span id="L8" class="LineNr"> 8 </span> <span class="PreProc">break-if-=</span> +<span id="L9" class="LineNr"> 9 </span> <a href='103grapheme.subx.html#L1'>draw-grapheme</a> screen, g, x, y, color +<span id="L10" class="LineNr">10 </span> add-to x, <span class="Constant">8</span> <span class="muComment"># font-width</span> +<span id="L11" class="LineNr">11 </span> <span class="PreProc">loop</span> +<span id="L12" class="LineNr">12 </span> <span class="Delimiter">}</span> +<span id="L13" class="LineNr">13 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/boot.hex.html b/html/baremetal/boot.hex.html index e4a54cfb..4b696da1 100644 --- a/html/baremetal/boot.hex.html +++ b/html/baremetal/boot.hex.html @@ -17,6 +17,7 @@ a { color:inherit; } .subxComment { color: #005faf; } .LineNr { } .subxS1Comment { color: #0000af; } +.Folded { color: #080808; background-color: #949494; } --> </style> @@ -52,7 +53,7 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/main/baremetal/boot.hex'>https://github.com/akkartik/mu/blob/main/baremetal/boot.hex</a> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Code for the first 2 disk sectors, that all programs in this directory need:</span> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Code for the first disk sector that all programs in this directory need:</span> <span id="L2" class="LineNr"> 2 </span><span class="subxComment"># - load sectors past the first (using BIOS primitives) since only the first is available by default</span> <span id="L3" class="LineNr"> 3 </span><span class="subxComment"># - if this fails, print 'D' at top-left of screen and halt</span> <span id="L4" class="LineNr"> 4 </span><span class="subxComment"># - initialize a minimal graphics mode</span> @@ -85,7 +86,7 @@ if ('onhashchange' in window) { <span id="L31" class="LineNr"> 31 </span><span class="subxComment"># - can't use any syscalls</span> <span id="L32" class="LineNr"> 32 </span><span class="subxComment"># - can't print text to video memory (past these boot sectors)</span> <span id="L33" class="LineNr"> 33 </span><span class="subxComment"># - must only print raw pixels (256 colors) to video memory (resolution 1024x768)</span> -<span id="L34" class="LineNr"> 34 </span><span class="subxComment"># - must store their entry-point at address 0x8800</span> +<span id="L34" class="LineNr"> 34 </span><span class="subxComment"># - must store their entry-point at address 0x9000</span> <span id="L35" class="LineNr"> 35 </span> <span id="L36" class="LineNr"> 36 </span><span class="subxComment">## 16-bit entry point</span> <span id="L37" class="LineNr"> 37 </span> @@ -118,7 +119,7 @@ if ('onhashchange' in window) { <span id="L64" class="LineNr"> 64 </span> b5 00 <span class="subxComment"># ch <- 0 # cylinder 0</span> <span id="L65" class="LineNr"> 65 </span> b6 00 <span class="subxComment"># dh <- 0 # track 0</span> <span id="L66" class="LineNr"> 66 </span> b1 02 <span class="subxComment"># cl <- 2 # second sector, 1-based</span> -<span id="L67" class="LineNr"> 67 </span> b0 10 <span class="subxComment"># al <- 16 # number of sectors to read; all sectors must be in a single track</span> +<span id="L67" class="LineNr"> 67 </span> b0 20 <span class="subxComment"># al <- 32 # number of sectors to read; all sectors must be in a single track</span> <span id="L68" class="LineNr"> 68 </span> <span class="subxComment"># address to write sectors to = es:bx = 0x7e00, contiguous with boot segment</span> <span id="L69" class="LineNr"> 69 </span> bb 00 00 <span class="subxComment"># bx <- 0</span> <span id="L70" class="LineNr"> 70 </span> 8e c3 <span class="subxComment"># es <- bx</span> @@ -259,7 +260,7 @@ if ('onhashchange' in window) { <span id="L205" class="LineNr">205 </span> <span id="L206" class="LineNr">206 </span> <span class="subxComment"># initialization is done; enable interrupts</span> <span id="L207" class="LineNr">207 </span> fb -<span id="L208" class="LineNr">208 </span> e9 01 0b 00 00 <span class="subxComment"># jump to 0x8800 [label]</span> +<span id="L208" class="LineNr">208 </span> e9 01 13 00 00 <span class="subxComment"># jump to 0x9000 [label]</span> <span id="L209" class="LineNr">209 </span> <span id="L210" class="LineNr">210 </span><span class="subxComment"># padding</span> <span id="L211" class="LineNr">211 </span><span class="subxComment"># ff:</span> @@ -294,7 +295,7 @@ if ('onhashchange' in window) { <span id="L240" class="LineNr">240 </span> <span class="subxS1Comment"># . var index/ecx: byte</span> <span id="L241" class="LineNr">241 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> <span id="L242" class="LineNr">242 </span> 0d <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span> -<span id="L243" class="LineNr">243 </span> ce 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L243" class="LineNr">243 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L244" class="LineNr">244 </span> <span class="subxS1Comment"># . al = *(keyboard buffer + index)</span> <span id="L245" class="LineNr">245 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> <span id="L246" class="LineNr">246 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> @@ -324,11 +325,11 @@ if ('onhashchange' in window) { <span id="L270" class="LineNr">270 </span> <span class="subxComment"># increment index</span> <span id="L271" class="LineNr">271 </span> fe <span class="subxComment"># increment byte</span> <span id="L272" class="LineNr">272 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> -<span id="L273" class="LineNr">273 </span> ce 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L273" class="LineNr">273 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L274" class="LineNr">274 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> <span id="L275" class="LineNr">275 </span> 80 <span class="subxComment"># and byte</span> <span id="L276" class="LineNr">276 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> -<span id="L277" class="LineNr">277 </span> ce 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L277" class="LineNr">277 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L278" class="LineNr">278 </span> 0f <span class="subxComment"># imm8</span> <span id="L279" class="LineNr">279 </span><span class="subxComment"># 155:</span> <span id="L280" class="LineNr">280 </span> <span class="subxComment"># epilogue</span> @@ -345,65 +346,65 @@ if ('onhashchange' in window) { <span id="L291" class="LineNr">291 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L292" class="LineNr">292 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L293" class="LineNr">293 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L294" class="LineNr">294 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L294" class="LineNr">294 </span>00 00 00 00 00 00 00 00 <span id="L295" class="LineNr">295 </span> -<span id="L296" class="LineNr">296 </span><span class="subxComment"># 1ce:</span> +<span id="L296" class="LineNr">296 </span><span class="subxComment"># 1c8:</span> <span id="L297" class="LineNr">297 </span><span class="subxComment"># var keyboard circular buffer</span> <span id="L298" class="LineNr">298 </span><span class="subxComment"># write index: nibble</span> -<span id="L299" class="LineNr">299 </span> 00 -<span id="L300" class="LineNr">300 </span><span class="subxComment"># 1cf:</span> -<span id="L301" class="LineNr">301 </span><span class="subxComment"># read index: nibble</span> -<span id="L302" class="LineNr">302 </span> 00 -<span id="L303" class="LineNr">303 </span><span class="subxComment"># circular buffer: byte[16]</span> -<span id="L304" class="LineNr">304 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L305" class="LineNr">305 </span> -<span id="L306" class="LineNr">306 </span><span class="subxComment"># padding</span> -<span id="L307" class="LineNr">307 </span><span class="subxComment"># 1e0:</span> -<span id="L308" class="LineNr">308 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L309" class="LineNr">309 </span>00 00 00 00 00 00 00 00 -<span id="L310" class="LineNr">310 </span> -<span id="L311" class="LineNr">311 </span><span class="subxComment"># 1f8:</span> -<span id="L312" class="LineNr">312 </span><span class="subxComment"># idt_descriptor:</span> -<span id="L313" class="LineNr">313 </span> ff 00 <span class="subxComment"># idt_end - idt_start - 1</span> -<span id="L314" class="LineNr">314 </span> 00 7e 00 00 <span class="subxComment"># start = idt_start [label]</span> -<span id="L315" class="LineNr">315 </span> -<span id="L316" class="LineNr">316 </span><span class="subxComment"># 1fe:</span> -<span id="L317" class="LineNr">317 </span><span class="subxComment"># final 2 bytes of boot sector</span> -<span id="L318" class="LineNr">318 </span>55 aa -<span id="L319" class="LineNr">319 </span> -<span id="L320" class="LineNr">320 </span><span class="subxComment">## sector 2</span> -<span id="L321" class="LineNr">321 </span><span class="subxComment"># loaded by load_disk, not automatically on boot</span> +<span id="L299" class="LineNr">299 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> +<span id="L300" class="LineNr">300 </span> 00 00 00 00 +<span id="L301" class="LineNr">301 </span><span class="subxComment"># 1cc:</span> +<span id="L302" class="LineNr">302 </span><span class="subxComment"># read index: nibble</span> +<span id="L303" class="LineNr">303 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> +<span id="L304" class="LineNr">304 </span> 00 00 00 00 +<span id="L305" class="LineNr">305 </span><span class="subxComment"># 1d0:</span> +<span id="L306" class="LineNr">306 </span><span class="subxComment"># circular buffer: byte[16]</span> +<span id="L307" class="LineNr">307 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L308" class="LineNr">308 </span> +<span id="L309" class="LineNr">309 </span><span class="subxComment"># padding</span> +<span id="L310" class="LineNr">310 </span><span class="subxComment"># 1e0:</span> +<span id="L311" class="LineNr">311 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L312" class="LineNr">312 </span>00 00 00 00 00 00 00 00 +<span id="L313" class="LineNr">313 </span> +<span id="L314" class="LineNr">314 </span><span class="subxComment"># 1f8:</span> +<span id="L315" class="LineNr">315 </span><span class="subxComment"># idt_descriptor:</span> +<span id="L316" class="LineNr">316 </span> ff 00 <span class="subxComment"># idt_end - idt_start - 1</span> +<span id="L317" class="LineNr">317 </span> 00 7e 00 00 <span class="subxComment"># start = idt_start [label]</span> +<span id="L318" class="LineNr">318 </span> +<span id="L319" class="LineNr">319 </span><span class="subxComment"># 1fe:</span> +<span id="L320" class="LineNr">320 </span><span class="subxComment"># final 2 bytes of boot sector</span> +<span id="L321" class="LineNr">321 </span>55 aa <span id="L322" class="LineNr">322 </span> -<span id="L323" class="LineNr">323 </span><span class="subxComment"># offset 200 (address 0x7e00): interrupt descriptor table</span> -<span id="L324" class="LineNr">324 </span><span class="subxComment"># 32 entries * 8 bytes each = 256 bytes (0x100)</span> -<span id="L325" class="LineNr">325 </span><span class="subxComment"># idt_start:</span> -<span id="L326" class="LineNr">326 </span> -<span id="L327" class="LineNr">327 </span>00 00 00 00 00 00 00 00 -<span id="L328" class="LineNr">328 </span>00 00 00 00 00 00 00 00 -<span id="L329" class="LineNr">329 </span>00 00 00 00 00 00 00 00 +<span id="L323" class="LineNr">323 </span><span class="subxComment">## sector 2</span> +<span id="L324" class="LineNr">324 </span><span class="subxComment"># loaded by load_disk, not automatically on boot</span> +<span id="L325" class="LineNr">325 </span> +<span id="L326" class="LineNr">326 </span><span class="subxComment"># offset 200 (address 0x7e00): interrupt descriptor table</span> +<span id="L327" class="LineNr">327 </span><span class="subxComment"># 32 entries * 8 bytes each = 256 bytes (0x100)</span> +<span id="L328" class="LineNr">328 </span><span class="subxComment"># idt_start:</span> +<span id="L329" class="LineNr">329 </span> <span id="L330" class="LineNr">330 </span>00 00 00 00 00 00 00 00 <span id="L331" class="LineNr">331 </span>00 00 00 00 00 00 00 00 <span id="L332" class="LineNr">332 </span>00 00 00 00 00 00 00 00 <span id="L333" class="LineNr">333 </span>00 00 00 00 00 00 00 00 <span id="L334" class="LineNr">334 </span>00 00 00 00 00 00 00 00 -<span id="L335" class="LineNr">335 </span> -<span id="L336" class="LineNr">336 </span><span class="subxComment"># entry 8: clock</span> -<span id="L337" class="LineNr">337 </span> 00 7d <span class="subxComment"># target[0:16] = null interrupt handler [label]</span> -<span id="L338" class="LineNr">338 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> -<span id="L339" class="LineNr">339 </span> 00 <span class="subxComment"># unused</span> -<span id="L340" class="LineNr">340 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> -<span id="L341" class="LineNr">341 </span> 00 00 <span class="subxComment"># target[16:32]</span> -<span id="L342" class="LineNr">342 </span> -<span id="L343" class="LineNr">343 </span><span class="subxComment"># entry 9: keyboard</span> -<span id="L344" class="LineNr">344 </span> 10 7d <span class="subxComment"># target[0:16] = keyboard interrupt handler [label]</span> -<span id="L345" class="LineNr">345 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> -<span id="L346" class="LineNr">346 </span> 00 <span class="subxComment"># unused</span> -<span id="L347" class="LineNr">347 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> -<span id="L348" class="LineNr">348 </span> 00 00 <span class="subxComment"># target[16:32]</span> -<span id="L349" class="LineNr">349 </span> -<span id="L350" class="LineNr">350 </span>00 00 00 00 00 00 00 00 -<span id="L351" class="LineNr">351 </span>00 00 00 00 00 00 00 00 -<span id="L352" class="LineNr">352 </span>00 00 00 00 00 00 00 00 +<span id="L335" class="LineNr">335 </span>00 00 00 00 00 00 00 00 +<span id="L336" class="LineNr">336 </span>00 00 00 00 00 00 00 00 +<span id="L337" class="LineNr">337 </span>00 00 00 00 00 00 00 00 +<span id="L338" class="LineNr">338 </span> +<span id="L339" class="LineNr">339 </span><span class="subxComment"># entry 8: clock</span> +<span id="L340" class="LineNr">340 </span> 00 7d <span class="subxComment"># target[0:16] = null interrupt handler [label]</span> +<span id="L341" class="LineNr">341 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> +<span id="L342" class="LineNr">342 </span> 00 <span class="subxComment"># unused</span> +<span id="L343" class="LineNr">343 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> +<span id="L344" class="LineNr">344 </span> 00 00 <span class="subxComment"># target[16:32]</span> +<span id="L345" class="LineNr">345 </span> +<span id="L346" class="LineNr">346 </span><span class="subxComment"># entry 9: keyboard</span> +<span id="L347" class="LineNr">347 </span> 10 7d <span class="subxComment"># target[0:16] = keyboard interrupt handler [label]</span> +<span id="L348" class="LineNr">348 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> +<span id="L349" class="LineNr">349 </span> 00 <span class="subxComment"># unused</span> +<span id="L350" class="LineNr">350 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> +<span id="L351" class="LineNr">351 </span> 00 00 <span class="subxComment"># target[16:32]</span> +<span id="L352" class="LineNr">352 </span> <span id="L353" class="LineNr">353 </span>00 00 00 00 00 00 00 00 <span id="L354" class="LineNr">354 </span>00 00 00 00 00 00 00 00 <span id="L355" class="LineNr">355 </span>00 00 00 00 00 00 00 00 @@ -423,51 +424,51 @@ if ('onhashchange' in window) { <span id="L369" class="LineNr">369 </span>00 00 00 00 00 00 00 00 <span id="L370" class="LineNr">370 </span>00 00 00 00 00 00 00 00 <span id="L371" class="LineNr">371 </span>00 00 00 00 00 00 00 00 -<span id="L372" class="LineNr">372 </span><span class="subxComment"># idt_end:</span> -<span id="L373" class="LineNr">373 </span> -<span id="L374" class="LineNr">374 </span><span class="subxComment"># offset 300 (address 0x7f00):</span> -<span id="L375" class="LineNr">375 </span><span class="subxComment"># video mode info:</span> -<span id="L376" class="LineNr">376 </span> 00 00 <span class="subxComment"># attributes</span> -<span id="L377" class="LineNr">377 </span> 00 <span class="subxComment"># winA</span> -<span id="L378" class="LineNr">378 </span> 00 <span class="subxComment"># winB</span> -<span id="L379" class="LineNr">379 </span><span class="subxComment"># 304</span> -<span id="L380" class="LineNr">380 </span> 00 00 <span class="subxComment"># granularity</span> -<span id="L381" class="LineNr">381 </span> 00 00 <span class="subxComment"># winsize</span> -<span id="L382" class="LineNr">382 </span><span class="subxComment"># 308</span> -<span id="L383" class="LineNr">383 </span> 00 00 <span class="subxComment"># segmentA</span> -<span id="L384" class="LineNr">384 </span> 00 00 <span class="subxComment"># segmentB</span> -<span id="L385" class="LineNr">385 </span><span class="subxComment"># 30c</span> -<span id="L386" class="LineNr">386 </span> 00 00 00 00 <span class="subxComment"># realFctPtr (who knows)</span> -<span id="L387" class="LineNr">387 </span><span class="subxComment"># 310</span> -<span id="L388" class="LineNr">388 </span> 00 00 <span class="subxComment"># pitch</span> -<span id="L389" class="LineNr">389 </span> 00 00 <span class="subxComment"># Xres</span> -<span id="L390" class="LineNr">390 </span><span class="subxComment"># 314</span> -<span id="L391" class="LineNr">391 </span> 00 00 <span class="subxComment"># Yres</span> -<span id="L392" class="LineNr">392 </span> 00 00 <span class="subxComment"># Wchar Ychar</span> -<span id="L393" class="LineNr">393 </span><span class="subxComment"># 318</span> -<span id="L394" class="LineNr">394 </span> 00 <span class="subxComment"># planes</span> -<span id="L395" class="LineNr">395 </span> 00 <span class="subxComment"># bpp</span> -<span id="L396" class="LineNr">396 </span> 00 <span class="subxComment"># banks</span> -<span id="L397" class="LineNr">397 </span> 00 <span class="subxComment"># memory_model</span> -<span id="L398" class="LineNr">398 </span><span class="subxComment"># 31c</span> -<span id="L399" class="LineNr">399 </span> 00 <span class="subxComment"># bank_size</span> -<span id="L400" class="LineNr">400 </span> 00 <span class="subxComment"># image_pages</span> -<span id="L401" class="LineNr">401 </span> 00 <span class="subxComment"># reserved</span> -<span id="L402" class="LineNr">402 </span><span class="subxComment"># 31f</span> -<span id="L403" class="LineNr">403 </span> 00 00 <span class="subxComment"># red_mask red_position</span> -<span id="L404" class="LineNr">404 </span> 00 00 <span class="subxComment"># green_mask green_position</span> -<span id="L405" class="LineNr">405 </span> 00 00 <span class="subxComment"># blue_mask blue_position</span> -<span id="L406" class="LineNr">406 </span> 00 00 <span class="subxComment"># rsv_mask rsv_position</span> -<span id="L407" class="LineNr">407 </span> 00 <span class="subxComment"># directcolor_attributes</span> -<span id="L408" class="LineNr">408 </span><span class="subxComment"># 328</span> -<span id="L409" class="LineNr">409 </span> 00 00 00 00 <span class="subxComment"># physbase <== linear frame buffer</span> -<span id="L410" class="LineNr">410 </span> -<span id="L411" class="LineNr">411 </span><span class="subxComment"># 32c</span> -<span id="L412" class="LineNr">412 </span><span class="subxComment"># reserved for video mode info</span> -<span id="L413" class="LineNr">413 </span> 00 00 00 00 -<span id="L414" class="LineNr">414 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L415" class="LineNr">415 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L416" class="LineNr">416 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L372" class="LineNr">372 </span>00 00 00 00 00 00 00 00 +<span id="L373" class="LineNr">373 </span>00 00 00 00 00 00 00 00 +<span id="L374" class="LineNr">374 </span>00 00 00 00 00 00 00 00 +<span id="L375" class="LineNr">375 </span><span class="subxComment"># idt_end:</span> +<span id="L376" class="LineNr">376 </span> +<span id="L377" class="LineNr">377 </span><span class="subxComment"># offset 300 (address 0x7f00):</span> +<span id="L378" class="LineNr">378 </span><span class="subxComment"># video mode info:</span> +<span id="L379" class="LineNr">379 </span> 00 00 <span class="subxComment"># attributes</span> +<span id="L380" class="LineNr">380 </span> 00 <span class="subxComment"># winA</span> +<span id="L381" class="LineNr">381 </span> 00 <span class="subxComment"># winB</span> +<span id="L382" class="LineNr">382 </span><span class="subxComment"># 304</span> +<span id="L383" class="LineNr">383 </span> 00 00 <span class="subxComment"># granularity</span> +<span id="L384" class="LineNr">384 </span> 00 00 <span class="subxComment"># winsize</span> +<span id="L385" class="LineNr">385 </span><span class="subxComment"># 308</span> +<span id="L386" class="LineNr">386 </span> 00 00 <span class="subxComment"># segmentA</span> +<span id="L387" class="LineNr">387 </span> 00 00 <span class="subxComment"># segmentB</span> +<span id="L388" class="LineNr">388 </span><span class="subxComment"># 30c</span> +<span id="L389" class="LineNr">389 </span> 00 00 00 00 <span class="subxComment"># realFctPtr (who knows)</span> +<span id="L390" class="LineNr">390 </span><span class="subxComment"># 310</span> +<span id="L391" class="LineNr">391 </span> 00 00 <span class="subxComment"># pitch</span> +<span id="L392" class="LineNr">392 </span> 00 00 <span class="subxComment"># Xres</span> +<span id="L393" class="LineNr">393 </span><span class="subxComment"># 314</span> +<span id="L394" class="LineNr">394 </span> 00 00 <span class="subxComment"># Yres</span> +<span id="L395" class="LineNr">395 </span> 00 00 <span class="subxComment"># Wchar Ychar</span> +<span id="L396" class="LineNr">396 </span><span class="subxComment"># 318</span> +<span id="L397" class="LineNr">397 </span> 00 <span class="subxComment"># planes</span> +<span id="L398" class="LineNr">398 </span> 00 <span class="subxComment"># bpp</span> +<span id="L399" class="LineNr">399 </span> 00 <span class="subxComment"># banks</span> +<span id="L400" class="LineNr">400 </span> 00 <span class="subxComment"># memory_model</span> +<span id="L401" class="LineNr">401 </span><span class="subxComment"># 31c</span> +<span id="L402" class="LineNr">402 </span> 00 <span class="subxComment"># bank_size</span> +<span id="L403" class="LineNr">403 </span> 00 <span class="subxComment"># image_pages</span> +<span id="L404" class="LineNr">404 </span> 00 <span class="subxComment"># reserved</span> +<span id="L405" class="LineNr">405 </span><span class="subxComment"># 31f</span> +<span id="L406" class="LineNr">406 </span> 00 00 <span class="subxComment"># red_mask red_position</span> +<span id="L407" class="LineNr">407 </span> 00 00 <span class="subxComment"># green_mask green_position</span> +<span id="L408" class="LineNr">408 </span> 00 00 <span class="subxComment"># blue_mask blue_position</span> +<span id="L409" class="LineNr">409 </span> 00 00 <span class="subxComment"># rsv_mask rsv_position</span> +<span id="L410" class="LineNr">410 </span> 00 <span class="subxComment"># directcolor_attributes</span> +<span id="L411" class="LineNr">411 </span><span class="subxComment"># 328</span> +<span id="L412" class="LineNr">412 </span> 00 00 00 00 <span class="subxComment"># physbase <== linear frame buffer</span> +<span id="L413" class="LineNr">413 </span> +<span id="L414" class="LineNr">414 </span><span class="subxComment"># 32c</span> +<span id="L415" class="LineNr">415 </span><span class="subxComment"># reserved for video mode info</span> +<span id="L416" class="LineNr">416 </span> 00 00 00 00 <span id="L417" class="LineNr">417 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L418" class="LineNr">418 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L419" class="LineNr">419 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 @@ -478,167 +479,21 @@ if ('onhashchange' in window) { <span id="L424" class="LineNr">424 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L425" class="LineNr">425 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <span id="L426" class="LineNr">426 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L427" class="LineNr">427 </span> -<span id="L428" class="LineNr">428 </span><span class="subxComment"># offset 400 (address 0x8000):</span> -<span id="L429" class="LineNr">429 </span><span class="subxComment"># keyboard normal map:</span> -<span id="L430" class="LineNr">430 </span>00 -<span id="L431" class="LineNr">431 </span><span class="subxComment"># es</span> -<span id="L432" class="LineNr">432 </span> 1b -<span id="L433" class="LineNr">433 </span><span class="subxComment"># |<--- digits -------------->| - = bs</span> -<span id="L434" class="LineNr">434 </span> 31 32 33 34 35 36 37 38 39 30 2d 3d 08 -<span id="L435" class="LineNr">435 </span><span class="subxComment"># offset 40f</span> -<span id="L436" class="LineNr">436 </span><span class="subxComment"># tb q w e r t y u i o p [ ]</span> -<span id="L437" class="LineNr">437 </span> 09 71 77 65 72 74 79 75 69 6f 70 5b 5d -<span id="L438" class="LineNr">438 </span><span class="subxComment"># offset 41c</span> -<span id="L439" class="LineNr">439 </span><span class="subxComment"># enter</span> -<span id="L440" class="LineNr">440 </span> 0a 00 -<span id="L441" class="LineNr">441 </span><span class="subxComment"># offset 41e</span> -<span id="L442" class="LineNr">442 </span><span class="subxComment"># a s d f g h j k l ; ' ` \</span> -<span id="L443" class="LineNr">443 </span> 61 73 64 66 67 68 6a 6b 6c 3b 27 60 00 5c -<span id="L444" class="LineNr">444 </span><span class="subxComment"># offset 42c</span> -<span id="L445" class="LineNr">445 </span><span class="subxComment"># z x c v b n m , . /</span> -<span id="L446" class="LineNr">446 </span> 7a 78 63 76 62 6e 6d 2c 2e 2f -<span id="L447" class="LineNr">447 </span><span class="subxComment"># offset 436</span> -<span id="L448" class="LineNr">448 </span> 00 00 00 00 00 00 00 00 00 00 -<span id="L449" class="LineNr">449 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L450" class="LineNr">450 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L451" class="LineNr">451 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L452" class="LineNr">452 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L453" class="LineNr">453 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L454" class="LineNr">454 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L455" class="LineNr">455 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L456" class="LineNr">456 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L457" class="LineNr">457 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L458" class="LineNr">458 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L459" class="LineNr">459 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L460" class="LineNr">460 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L461" class="LineNr">461 </span> -<span id="L462" class="LineNr">462 </span><span class="subxComment"># 500:</span> -<span id="L463" class="LineNr">463 </span><span class="subxComment"># keyboard shift map:</span> -<span id="L464" class="LineNr">464 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L465" class="LineNr">465 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L466" class="LineNr">466 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L467" class="LineNr">467 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L468" class="LineNr">468 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L469" class="LineNr">469 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L470" class="LineNr">470 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L471" class="LineNr">471 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L472" class="LineNr">472 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L473" class="LineNr">473 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L474" class="LineNr">474 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L475" class="LineNr">475 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L476" class="LineNr">476 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L477" class="LineNr">477 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L478" class="LineNr">478 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L479" class="LineNr">479 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L480" class="LineNr">480 </span> -<span id="L481" class="LineNr">481 </span><span class="subxComment"># 600:</span> -<span id="L482" class="LineNr">482 </span><span class="subxComment"># keyboard ctrl map:</span> -<span id="L483" class="LineNr">483 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L484" class="LineNr">484 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L485" class="LineNr">485 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L486" class="LineNr">486 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L487" class="LineNr">487 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L488" class="LineNr">488 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L489" class="LineNr">489 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L490" class="LineNr">490 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L491" class="LineNr">491 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L492" class="LineNr">492 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L493" class="LineNr">493 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L494" class="LineNr">494 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L495" class="LineNr">495 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L496" class="LineNr">496 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L497" class="LineNr">497 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L498" class="LineNr">498 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L499" class="LineNr">499 </span> -<span id="L500" class="LineNr">500 </span><span class="subxComment"># padding (there might be more keyboard tables)</span> -<span id="L501" class="LineNr">501 </span><span class="subxComment"># 700:</span> -<span id="L502" class="LineNr">502 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L503" class="LineNr">503 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L504" class="LineNr">504 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L505" class="LineNr">505 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L506" class="LineNr">506 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L507" class="LineNr">507 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L508" class="LineNr">508 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L509" class="LineNr">509 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L510" class="LineNr">510 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L511" class="LineNr">511 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L512" class="LineNr">512 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L513" class="LineNr">513 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L514" class="LineNr">514 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L515" class="LineNr">515 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L516" class="LineNr">516 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L517" class="LineNr">517 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L518" class="LineNr">518 </span> -<span id="L519" class="LineNr">519 </span><span class="subxComment"># 800:</span> -<span id="L520" class="LineNr">520 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L521" class="LineNr">521 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L522" class="LineNr">522 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L523" class="LineNr">523 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L524" class="LineNr">524 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L525" class="LineNr">525 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L526" class="LineNr">526 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L527" class="LineNr">527 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L528" class="LineNr">528 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L529" class="LineNr">529 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L530" class="LineNr">530 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L531" class="LineNr">531 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L532" class="LineNr">532 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L533" class="LineNr">533 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L534" class="LineNr">534 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L535" class="LineNr">535 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L536" class="LineNr">536 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L537" class="LineNr">537 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L538" class="LineNr">538 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L539" class="LineNr">539 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L540" class="LineNr">540 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L541" class="LineNr">541 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L542" class="LineNr">542 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L543" class="LineNr">543 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L544" class="LineNr">544 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L545" class="LineNr">545 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L546" class="LineNr">546 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L547" class="LineNr">547 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L548" class="LineNr">548 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L549" class="LineNr">549 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L550" class="LineNr">550 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L551" class="LineNr">551 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L552" class="LineNr">552 </span><span class="subxComment"># a00:</span> -<span id="L553" class="LineNr">553 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L554" class="LineNr">554 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L555" class="LineNr">555 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L556" class="LineNr">556 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L557" class="LineNr">557 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L558" class="LineNr">558 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L559" class="LineNr">559 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L560" class="LineNr">560 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L561" class="LineNr">561 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L562" class="LineNr">562 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L563" class="LineNr">563 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L564" class="LineNr">564 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L565" class="LineNr">565 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L566" class="LineNr">566 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L567" class="LineNr">567 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L568" class="LineNr">568 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L569" class="LineNr">569 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L570" class="LineNr">570 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L571" class="LineNr">571 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L572" class="LineNr">572 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L573" class="LineNr">573 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L574" class="LineNr">574 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L575" class="LineNr">575 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L576" class="LineNr">576 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L577" class="LineNr">577 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L578" class="LineNr">578 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L579" class="LineNr">579 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L580" class="LineNr">580 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L581" class="LineNr">581 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L582" class="LineNr">582 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L583" class="LineNr">583 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L584" class="LineNr">584 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L585" class="LineNr">585 </span><span class="subxComment"># offset c00 (address 0x8800)</span> -<span id="L586" class="LineNr">586 </span> -<span id="L587" class="LineNr">587 </span><span class="subxComment"># vim:ft=subx</span> +<span id="L427" class="LineNr">427 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L428" class="LineNr">428 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L429" class="LineNr">429 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L430" class="LineNr">430 </span> +<span id="L431" class="LineNr">431 </span><span class="subxComment">## the rest of this file has data</span> +<span id="L432" class="LineNr">432 </span> +<span id="L433" class="LineNr">433 </span><span class="subxComment"># offset 400 (address 0x8000):</span> +<span id="L434" class="Folded">434 </span><span class="Folded">+--158 lines: # translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------------------------</span> +<span id="L592" class="LineNr">592 </span> +<span id="L593" class="LineNr">593 </span><span class="subxComment"># offset c00 (address 0x8800)</span> +<span id="L594" class="Folded">594 </span><span class="Folded">+--236 lines: # Bitmaps for some ASCII characters (soon Unicode) ------------------------------------------------------------------------------------------------------------------------</span> +<span id="L830" class="LineNr">830 </span> +<span id="L831" class="LineNr">831 </span><span class="subxComment"># offset 1400 (address 0x9000)</span> +<span id="L832" class="LineNr">832 </span> +<span id="L833" class="LineNr">833 </span><span class="subxComment"># vim:ft=subx</span> </pre> </body> </html> diff --git a/html/baremetal/ex1.hex.html b/html/baremetal/ex1.hex.html index c3d5a530..3adbfdb7 100644 --- a/html/baremetal/ex1.hex.html +++ b/html/baremetal/ex1.hex.html @@ -66,8 +66,8 @@ if ('onhashchange' in window) { <span id="L13" class="LineNr">13 </span><span class="subxComment"># Or:</span> <span id="L14" class="LineNr">14 </span><span class="subxComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> <span id="L15" class="LineNr">15 </span> -<span id="L16" class="LineNr">16 </span><span class="subxComment"># main: (address 0x8800)</span> -<span id="L17" class="LineNr">17 </span>e9 fb ff ff ff <span class="subxComment"># jump to address 0x8800</span> +<span id="L16" class="LineNr">16 </span><span class="subxComment"># main: (address 0x9000)</span> +<span id="L17" class="LineNr">17 </span>e9 fb ff ff ff <span class="subxComment"># jump to main, hanging indefinitely</span> <span id="L18" class="LineNr">18 </span> <span id="L19" class="LineNr">19 </span><span class="subxComment"># vim:ft=subx</span> </pre> diff --git a/html/baremetal/ex1.subx.html b/html/baremetal/ex1.subx.html index e19160b8..dca74155 100644 --- a/html/baremetal/ex1.subx.html +++ b/html/baremetal/ex1.subx.html @@ -16,7 +16,7 @@ a { color:inherit; } * { font-size:12pt; font-size: 1em; } .subxComment { color: #005faf; } .LineNr { } -.Constant { color: #008787; } +.subxFunction { color: #af5f00; text-decoration: underline; } --> </style> @@ -64,12 +64,10 @@ if ('onhashchange' in window) { <span id="L10" class="LineNr">10 </span><span class="subxComment"># Or:</span> <span id="L11" class="LineNr">11 </span><span class="subxComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> <span id="L12" class="LineNr">12 </span> -<span id="L13" class="LineNr">13 </span>== code -<span id="L14" class="LineNr">14 </span> -<span id="L15" class="LineNr">15 </span><span class="Constant">$loop</span>: -<span id="L16" class="LineNr">16 </span>e9/jump $loop/disp32 -<span id="L17" class="LineNr">17 </span> -<span id="L18" class="LineNr">18 </span><span class="subxComment"># vim:ft=subx</span> +<span id="L13" class="LineNr">13 </span><span class="subxFunction">main</span>: +<span id="L14" class="LineNr">14 </span> e9/jump <a href='ex1.subx.html#L13'>main</a>/disp32 +<span id="L15" class="LineNr">15 </span> +<span id="L16" class="LineNr">16 </span><span class="subxComment"># vim:ft=subx</span> </pre> </body> </html> diff --git a/html/baremetal/ex2.hex.html b/html/baremetal/ex2.hex.html index 312aaf96..b5c89498 100644 --- a/html/baremetal/ex2.hex.html +++ b/html/baremetal/ex2.hex.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L13" class="LineNr">13 </span><span class="subxComment"># Expected output:</span> <span id="L14" class="LineNr">14 </span><span class="subxComment"># html/baremetal.png</span> <span id="L15" class="LineNr">15 </span> -<span id="L16" class="LineNr">16 </span><span class="subxComment"># main: (address 0x8800)</span> +<span id="L16" class="LineNr">16 </span><span class="subxComment"># main: (address 0x9000)</span> <span id="L17" class="LineNr">17 </span> <span id="L18" class="LineNr">18 </span><span class="subxComment"># ecx <- LFB</span> <span id="L19" class="LineNr">19 </span>8b <span class="subxComment"># copy *rm32 to r32</span> diff --git a/html/baremetal/ex2.mu.html b/html/baremetal/ex2.mu.html index a078082e..4dd35a7f 100644 --- a/html/baremetal/ex2.mu.html +++ b/html/baremetal/ex2.mu.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L8" class="LineNr"> 8 </span><span class="muComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> <span id="L9" class="LineNr"> 9 </span><span class="muComment">#</span> <span id="L10" class="LineNr">10 </span><span class="muComment"># Expected output:</span> -<span id="L11" class="LineNr">11 </span><span class="muComment"># <a href='https://github.com/akkartik/mu/blob/main/html/baremetal.png'>html/baremetal.png</a></span> +<span id="L11" class="LineNr">11 </span><span class="muComment"># html/baremetal.png</span> <span id="L12" class="LineNr">12 </span> <span id="L13" class="LineNr">13 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex2.mu.html#L13'>main</a></span> <span class="Delimiter">{</span> <span id="L14" class="LineNr">14 </span> <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> diff --git a/html/baremetal/ex2.subx.html b/html/baremetal/ex2.subx.html index e150cc4a..3d27392c 100644 --- a/html/baremetal/ex2.subx.html +++ b/html/baremetal/ex2.subx.html @@ -16,6 +16,7 @@ a { color:inherit; } * { font-size:12pt; font-size: 1em; } .subxComment { color: #005faf; } .LineNr { } +.subxFunction { color: #af5f00; text-decoration: underline; } .Constant { color: #008787; } --> </style> @@ -64,30 +65,27 @@ if ('onhashchange' in window) { <span id="L10" class="LineNr">10 </span><span class="subxComment"># Expected output:</span> <span id="L11" class="LineNr">11 </span><span class="subxComment"># html/baremetal.png</span> <span id="L12" class="LineNr">12 </span> -<span id="L13" class="LineNr">13 </span><span class="subxComment"># main: (address 0x8800)</span> -<span id="L14" class="LineNr">14 </span> -<span id="L15" class="LineNr">15 </span>== code +<span id="L13" class="LineNr">13 </span><span class="subxFunction">main</span>: +<span id="L14" class="LineNr">14 </span> <span class="subxComment"># ecx <- start of video memory</span> +<span id="L15" class="LineNr">15 </span> 8b/-> *0x7f28 1/r32/ecx <span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span><span class="subxComment"># ecx <- start of video memory</span> -<span id="L18" class="LineNr">18 </span>8b/-> *0x7f28 1/r32/ecx +<span id="L17" class="LineNr">17 </span> <span class="subxComment"># eax <- final pixel of video memory</span> +<span id="L18" class="LineNr">18 </span> 8d/copy-address *(ecx + 0x0bffff) 0/r32/eax <span class="subxComment"># 0xbffff = 1024*768 - 1</span> <span id="L19" class="LineNr">19 </span> -<span id="L20" class="LineNr">20 </span><span class="subxComment"># eax <- final pixel of video memory</span> -<span id="L21" class="LineNr">21 </span>8d/copy-address *(ecx + 0x0bffff) 0/r32/eax <span class="subxComment"># 0xbffff = 1024*768 - 1</span> -<span id="L22" class="LineNr">22 </span> -<span id="L23" class="LineNr">23 </span><span class="subxComment"># for each pixel in video memory</span> -<span id="L24" class="LineNr">24 </span>{ -<span id="L25" class="LineNr">25 </span> 39/compare %eax 1/r32/ecx -<span id="L26" class="LineNr">26 </span> 7c/jump-if-< <span class="Constant">break</span>/disp8 -<span id="L27" class="LineNr">27 </span> <span class="subxComment"># write its column number to it</span> -<span id="L28" class="LineNr">28 </span> 88/byte<- *eax 0/r32/AL -<span id="L29" class="LineNr">29 </span> 48/decrement-eax -<span id="L30" class="LineNr">30 </span> eb/jump <span class="Constant">loop</span>/disp8 -<span id="L31" class="LineNr">31 </span>} -<span id="L32" class="LineNr">32 </span> -<span id="L33" class="LineNr">33 </span><span class="subxComment"># hang indefinitely</span> -<span id="L34" class="LineNr">34 </span>{ -<span id="L35" class="LineNr">35 </span> eb/jump <span class="Constant">loop</span>/disp8 -<span id="L36" class="LineNr">36 </span>} +<span id="L20" class="LineNr">20 </span> <span class="subxComment"># for each pixel in video memory</span> +<span id="L21" class="LineNr">21 </span> { +<span id="L22" class="LineNr">22 </span> 39/compare %eax 1/r32/ecx +<span id="L23" class="LineNr">23 </span> 7c/jump-if-< <span class="Constant">break</span>/disp8 +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># write its column number to it</span> +<span id="L25" class="LineNr">25 </span> 88/byte<- *eax 0/r32/AL +<span id="L26" class="LineNr">26 </span> 48/decrement-eax +<span id="L27" class="LineNr">27 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L28" class="LineNr">28 </span> } +<span id="L29" class="LineNr">29 </span> +<span id="L30" class="LineNr">30 </span> <span class="subxComment"># hang indefinitely</span> +<span id="L31" class="LineNr">31 </span> { +<span id="L32" class="LineNr">32 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L33" class="LineNr">33 </span> } </pre> </body> </html> diff --git a/html/baremetal/ex3.hex.html b/html/baremetal/ex3.hex.html index b39c442f..08708bd7 100644 --- a/html/baremetal/ex3.hex.html +++ b/html/baremetal/ex3.hex.html @@ -64,7 +64,7 @@ if ('onhashchange' in window) { <span id="L11" class="LineNr">11 </span><span class="subxComment"># Or:</span> <span id="L12" class="LineNr">12 </span><span class="subxComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> <span id="L13" class="LineNr">13 </span> -<span id="L14" class="LineNr">14 </span><span class="subxComment"># main: (address 0x8800)</span> +<span id="L14" class="LineNr">14 </span><span class="subxComment"># main: (address 0x9000)</span> <span id="L15" class="LineNr">15 </span> <span id="L16" class="LineNr">16 </span><span class="subxComment"># eax <- LFB</span> <span id="L17" class="LineNr">17 </span>8b <span class="subxComment"># copy *rm32 to r32</span> @@ -78,7 +78,7 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr">25 </span> <span class="subxComment"># CL = *read index</span> <span id="L26" class="LineNr">26 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> <span id="L27" class="LineNr">27 </span> 0d <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span> -<span id="L28" class="LineNr">28 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L28" class="LineNr">28 </span> cc 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L29" class="LineNr">29 </span> <span class="subxComment"># CL = *(keyboard buffer + ecx)</span> <span id="L30" class="LineNr">30 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> <span id="L31" class="LineNr">31 </span> 89 <span class="subxComment"># 10/mod/*+disp32 001/r8/cl 001/rm32/ecx</span> @@ -92,11 +92,11 @@ if ('onhashchange' in window) { <span id="L39" class="LineNr">39 </span> <span class="subxComment"># otherwise increment read index</span> <span id="L40" class="LineNr">40 </span> fe <span class="subxComment"># increment byte</span> <span id="L41" class="LineNr">41 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> -<span id="L42" class="LineNr">42 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L42" class="LineNr">42 </span> cc 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L43" class="LineNr">43 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> <span id="L44" class="LineNr">44 </span> 80 <span class="subxComment"># and byte</span> <span id="L45" class="LineNr">45 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> -<span id="L46" class="LineNr">46 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L46" class="LineNr">46 </span> cc 7d 00 00 <span class="subxComment"># disp32 [label]</span> <span id="L47" class="LineNr">47 </span> 0f <span class="subxComment"># imm8</span> <span id="L48" class="LineNr">48 </span> <span class="subxComment"># print a pixel in fluorescent green</span> <span id="L49" class="LineNr">49 </span> c6 <span class="subxComment"># copy imm8 to m8 at rm32</span> diff --git a/html/baremetal/ex3.mu.html b/html/baremetal/ex3.mu.html new file mode 100644 index 00000000..c9d6fb1f --- /dev/null +++ b/html/baremetal/ex3.mu.html @@ -0,0 +1,93 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/ex3.mu</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.muComment { color: #005faf; } +.LineNr { } +.SpecialChar { color: #d70000; } +.Delimiter { color: #c000c0; } +.muFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +.PreProc { color: #c000c0; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/ex3.mu'>https://github.com/akkartik/mu/blob/main/baremetal/ex3.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Draw pixels in response to keyboard events, starting from the top-left</span> +<span id="L2" class="LineNr"> 2 </span><span class="muComment"># and in raster order.</span> +<span id="L3" class="LineNr"> 3 </span><span class="muComment">#</span> +<span id="L4" class="LineNr"> 4 </span><span class="muComment"># To build a disk image:</span> +<span id="L5" class="LineNr"> 5 </span><span class="muComment"># ./translate_mu_baremetal baremetal/ex3.mu # emits disk.img</span> +<span id="L6" class="LineNr"> 6 </span><span class="muComment"># To run:</span> +<span id="L7" class="LineNr"> 7 </span><span class="muComment"># qemu-system-i386 disk.img</span> +<span id="L8" class="LineNr"> 8 </span><span class="muComment"># Or:</span> +<span id="L9" class="LineNr"> 9 </span><span class="muComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> +<span id="L10" class="LineNr">10 </span><span class="muComment">#</span> +<span id="L11" class="LineNr">11 </span><span class="muComment"># Expected output: a new green pixel starting from the top left corner of the</span> +<span id="L12" class="LineNr">12 </span><span class="muComment"># screen every time you press a key (letter or digit)</span> +<span id="L13" class="LineNr">13 </span> +<span id="L14" class="LineNr">14 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex3.mu.html#L14'>main</a></span> <span class="Delimiter">{</span> +<span id="L15" class="LineNr">15 </span> <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L16" class="LineNr">16 </span> <span class="PreProc">var</span> y/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L17" class="LineNr">17 </span> <span class="Delimiter">{</span> +<span id="L18" class="LineNr">18 </span> <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='102keyboard.subx.html#L3'>read-key</a> <span class="Constant">0</span> <span class="muComment"># real keyboard</span> +<span id="L19" class="LineNr">19 </span> compare key, <span class="Constant">0</span> +<span id="L20" class="LineNr">20 </span> <span class="PreProc">loop-if-=</span> <span class="muComment"># busy wait</span> +<span id="L21" class="LineNr">21 </span> <a href='101screen.subx.html#L3'>pixel</a> <span class="Constant">0</span>, x, y, <span class="Constant">0x31</span> <span class="muComment"># green</span> +<span id="L22" class="LineNr">22 </span> x <span class="SpecialChar"><-</span> increment +<span id="L23" class="LineNr">23 </span> compare x, <span class="Constant">0x400</span> +<span id="L24" class="LineNr">24 </span> <span class="Delimiter">{</span> +<span id="L25" class="LineNr">25 </span> <span class="PreProc">break-if-<</span> +<span id="L26" class="LineNr">26 </span> y <span class="SpecialChar"><-</span> increment +<span id="L27" class="LineNr">27 </span> x <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> +<span id="L28" class="LineNr">28 </span> <span class="Delimiter">}</span> +<span id="L29" class="LineNr">29 </span> <span class="PreProc">loop</span> +<span id="L30" class="LineNr">30 </span> <span class="Delimiter">}</span> +<span id="L31" class="LineNr">31 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/ex4.mu.html b/html/baremetal/ex4.mu.html new file mode 100644 index 00000000..b9c5a36f --- /dev/null +++ b/html/baremetal/ex4.mu.html @@ -0,0 +1,77 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/ex4.mu</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.muComment { color: #005faf; } +.LineNr { } +.SpecialChar { color: #d70000; } +.Delimiter { color: #c000c0; } +.muFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +.PreProc { color: #c000c0; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/ex4.mu'>https://github.com/akkartik/mu/blob/main/baremetal/ex4.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Draw a character using the built-in font (GNU unifont)</span> +<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="muComment"># To build a disk image:</span> +<span id="L4" class="LineNr"> 4 </span><span class="muComment"># ./translate_mu_baremetal baremetal/ex4.mu # emits disk.img</span> +<span id="L5" class="LineNr"> 5 </span><span class="muComment"># To run:</span> +<span id="L6" class="LineNr"> 6 </span><span class="muComment"># qemu-system-i386 disk.img</span> +<span id="L7" class="LineNr"> 7 </span><span class="muComment"># Or:</span> +<span id="L8" class="LineNr"> 8 </span><span class="muComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> +<span id="L9" class="LineNr"> 9 </span><span class="muComment">#</span> +<span id="L10" class="LineNr">10 </span><span class="muComment"># Expected output: letter 'A' in green near the top-left corner of screen</span> +<span id="L11" class="LineNr">11 </span> +<span id="L12" class="LineNr">12 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex4.mu.html#L12'>main</a></span> <span class="Delimiter">{</span> +<span id="L13" class="LineNr">13 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar"><-</span> copy <span class="Constant">0x41</span> <span class="muComment"># 'A'</span> +<span id="L14" class="LineNr">14 </span> <a href='103grapheme.subx.html#L1'>draw-grapheme</a> <span class="Constant">0</span>, g, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>, <span class="Constant">0xa</span> +<span id="L15" class="LineNr">15 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/baremetal/ex5.mu.html b/html/baremetal/ex5.mu.html new file mode 100644 index 00000000..a83a2e12 --- /dev/null +++ b/html/baremetal/ex5.mu.html @@ -0,0 +1,75 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/ex5.mu</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.muComment { color: #005faf; } +.LineNr { } +.Delimiter { color: #c000c0; } +.muFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +.PreProc { color: #c000c0; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/ex5.mu'>https://github.com/akkartik/mu/blob/main/baremetal/ex5.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Draw an ASCII string using the built-in font (GNU unifont)</span> +<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="muComment"># To build a disk image:</span> +<span id="L4" class="LineNr"> 4 </span><span class="muComment"># ./translate_mu_baremetal baremetal/ex5.mu # emits disk.img</span> +<span id="L5" class="LineNr"> 5 </span><span class="muComment"># To run:</span> +<span id="L6" class="LineNr"> 6 </span><span class="muComment"># qemu-system-i386 disk.img</span> +<span id="L7" class="LineNr"> 7 </span><span class="muComment"># Or:</span> +<span id="L8" class="LineNr"> 8 </span><span class="muComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span> +<span id="L9" class="LineNr"> 9 </span><span class="muComment">#</span> +<span id="L10" class="LineNr">10 </span><span class="muComment"># Expected output: text in green near the top-left corner of screen</span> +<span id="L11" class="LineNr">11 </span> +<span id="L12" class="LineNr">12 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex5.mu.html#L12'>main</a></span> <span class="Delimiter">{</span> +<span id="L13" class="LineNr">13 </span> <a href='501draw-text-rightward.mu.html#L1'>draw-text-rightward</a> <span class="Constant">0</span>, <span class="Constant">"hello from baremetal Mu!"</span>, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>, <span class="Constant">0xa</span> +<span id="L14" class="LineNr">14 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |