diff options
| author | Kartik Agaram <vc@akkartik.com> | 2021-01-07 22:41:41 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2021-01-07 22:41:41 -0800 |
| commit | efa6c5f44e6a0d5e0b1f16c2819be67128bf05ef (patch) | |
| tree | 1e1540cfc1fff4fc312dfd503ca2c2d4d115eb1c | |
| parent | 3f7db804c96e91a92b97f444f26e1bcd49154929 (diff) | |
| download | mu-efa6c5f44e6a0d5e0b1f16c2819be67128bf05ef.tar.gz | |
7481
| -rw-r--r-- | html/baremetal/boot.hex.html | 395 | ||||
| -rw-r--r-- | html/baremetal/ex3.hex.html | 115 |
2 files changed, 259 insertions, 251 deletions
diff --git a/html/baremetal/boot.hex.html b/html/baremetal/boot.hex.html index 65cd7afe..e4a54cfb 100644 --- a/html/baremetal/boot.hex.html +++ b/html/baremetal/boot.hex.html @@ -287,7 +287,7 @@ if ('onhashchange' in window) { <span id="L233" class="LineNr">233 </span> <span class="subxComment"># if (status & 0x1) == 0, return</span> <span id="L234" class="LineNr">234 </span> 24 01 <span class="subxComment"># al <- and 0x1</span> <span id="L235" class="LineNr">235 </span> 3c 00 <span class="subxComment"># compare al, 0</span> -<span id="L236" class="LineNr">236 </span> 74 2d <span class="subxComment"># jump to epilogue if = [label]</span> +<span id="L236" class="LineNr">236 </span> 74 35 <span class="subxComment"># jump to epilogue if = [label]</span> <span id="L237" class="LineNr">237 </span><span class="subxComment"># 120:</span> <span id="L238" class="LineNr">238 </span> <span class="subxComment"># if keyboard buffer is full, return</span> <span id="L239" class="LineNr">239 </span> 31 c9 <span class="subxComment"># ecx <- xor ecx; 11/direct 001/r32/ecx 001/rm32/ecx</span> @@ -302,105 +302,105 @@ if ('onhashchange' in window) { <span id="L248" class="LineNr">248 </span> <span class="subxS1Comment"># . if (al != 0) return</span> <span id="L249" class="LineNr">249 </span> 3c 00 <span class="subxComment"># compare al, 0</span> <span id="L250" class="LineNr">250 </span><span class="subxComment"># 130:</span> -<span id="L251" class="LineNr">251 </span> 75 1b <span class="subxComment"># jump to epilogue if != [label]</span> +<span id="L251" class="LineNr">251 </span> 75 23 <span class="subxComment"># jump to epilogue if != [label]</span> <span id="L252" class="LineNr">252 </span> <span class="subxComment"># read keycode into al</span> <span id="L253" class="LineNr">253 </span> e4 60 <span class="subxComment"># al <- port 0x60</span> -<span id="L254" class="LineNr">254 </span> <span class="subxComment"># al <- *(keyboard normal map + eax)</span> -<span id="L255" class="LineNr">255 </span> 8a <span class="subxComment"># copy m8 at rm32 to r8</span> -<span id="L256" class="LineNr">256 </span> 80 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span> -<span id="L257" class="LineNr">257 </span> 00 80 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L258" class="LineNr">258 </span> <span class="subxComment"># store al in keyboard buffer</span> -<span id="L259" class="LineNr">259 </span> 88 <span class="subxComment"># copy r8 to m8 at r32</span> -<span id="L260" class="LineNr">260 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> -<span id="L261" class="LineNr">261 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L262" class="LineNr">262 </span><span class="subxComment"># 140:</span> -<span id="L263" class="LineNr">263 </span> <span class="subxComment"># increment index</span> -<span id="L264" class="LineNr">264 </span> fe <span class="subxComment"># increment byte</span> -<span id="L265" class="LineNr">265 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> -<span id="L266" class="LineNr">266 </span> ce 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L267" class="LineNr">267 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> -<span id="L268" class="LineNr">268 </span> 80 <span class="subxComment"># and byte</span> -<span id="L269" class="LineNr">269 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> -<span id="L270" class="LineNr">270 </span> ce 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L271" class="LineNr">271 </span> 0f <span class="subxComment"># imm8</span> -<span id="L272" class="LineNr">272 </span><span class="subxComment"># 14d:</span> -<span id="L273" class="LineNr">273 </span> <span class="subxComment"># epilogue</span> -<span id="L274" class="LineNr">274 </span> 61 <span class="subxComment"># pop all registers</span> -<span id="L275" class="LineNr">275 </span> fb <span class="subxComment"># enable interrupts</span> -<span id="L276" class="LineNr">276 </span> cf <span class="subxComment"># iret</span> -<span id="L277" class="LineNr">277 </span> -<span id="L278" class="LineNr">278 </span><span class="subxComment"># padding</span> -<span id="L279" class="LineNr">279 </span><span class="subxComment"># 150:</span> -<span id="L280" class="LineNr">280 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L281" class="LineNr">281 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L282" class="LineNr">282 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L283" class="LineNr">283 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L284" class="LineNr">284 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L285" class="LineNr">285 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L286" class="LineNr">286 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L287" class="LineNr">287 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L288" class="LineNr">288 </span> -<span id="L289" class="LineNr">289 </span><span class="subxComment"># 1ce:</span> -<span id="L290" class="LineNr">290 </span><span class="subxComment"># var keyboard circular buffer</span> -<span id="L291" class="LineNr">291 </span><span class="subxComment"># write index: nibble</span> -<span id="L292" class="LineNr">292 </span>00 -<span id="L293" class="LineNr">293 </span><span class="subxComment"># 1cf:</span> -<span id="L294" class="LineNr">294 </span><span class="subxComment"># read index: nibble</span> -<span id="L295" class="LineNr">295 </span>00 -<span id="L296" class="LineNr">296 </span><span class="subxComment"># circular buffer: byte[16]</span> -<span id="L297" class="LineNr">297 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L298" class="LineNr">298 </span> -<span id="L299" class="LineNr">299 </span><span class="subxComment"># padding</span> -<span id="L300" class="LineNr">300 </span><span class="subxComment"># 1e0:</span> -<span id="L301" class="LineNr">301 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L302" class="LineNr">302 </span>00 00 00 00 00 00 00 00 -<span id="L303" class="LineNr">303 </span> -<span id="L304" class="LineNr">304 </span><span class="subxComment"># 1f8:</span> -<span id="L305" class="LineNr">305 </span><span class="subxComment"># idt_descriptor:</span> -<span id="L306" class="LineNr">306 </span> ff 00 <span class="subxComment"># idt_end - idt_start - 1</span> -<span id="L307" class="LineNr">307 </span> 00 7e 00 00 <span class="subxComment"># start = idt_start [label]</span> -<span id="L308" class="LineNr">308 </span> -<span id="L309" class="LineNr">309 </span><span class="subxComment"># 1fe:</span> -<span id="L310" class="LineNr">310 </span><span class="subxComment"># final 2 bytes of boot sector</span> -<span id="L311" class="LineNr">311 </span>55 aa -<span id="L312" class="LineNr">312 </span> -<span id="L313" class="LineNr">313 </span><span class="subxComment">## sector 2</span> -<span id="L314" class="LineNr">314 </span><span class="subxComment"># loaded by load_disk, not automatically on boot</span> +<span id="L254" class="LineNr">254 </span> <span class="subxComment"># if (al & 0x80) a key is being lifted; return</span> +<span id="L255" class="LineNr">255 </span> 50 <span class="subxComment"># push eax</span> +<span id="L256" class="LineNr">256 </span> 24 80 <span class="subxComment"># al <- and 0x80</span> +<span id="L257" class="LineNr">257 </span> 3c 00 <span class="subxComment"># compare al, 0</span> +<span id="L258" class="LineNr">258 </span> 58 <span class="subxComment"># pop to eax (without touching flags)</span> +<span id="L259" class="LineNr">259 </span> 75 19 <span class="subxComment"># jump to epilogue if != [label]</span> +<span id="L260" class="LineNr">260 </span><span class="subxComment"># 13c:</span> +<span id="L261" class="LineNr">261 </span> <span class="subxComment"># al <- *(keyboard normal map + eax)</span> +<span id="L262" class="LineNr">262 </span> 8a <span class="subxComment"># copy m8 at rm32 to r8</span> +<span id="L263" class="LineNr">263 </span> 80 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span> +<span id="L264" class="LineNr">264 </span> 00 80 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L265" class="LineNr">265 </span> <span class="subxComment"># store al in keyboard buffer</span> +<span id="L266" class="LineNr">266 </span> 88 <span class="subxComment"># copy r8 to m8 at r32</span> +<span id="L267" class="LineNr">267 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> +<span id="L268" class="LineNr">268 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L269" class="LineNr">269 </span><span class="subxComment"># 148:</span> +<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="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="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> +<span id="L281" class="LineNr">281 </span> 61 <span class="subxComment"># pop all registers</span> +<span id="L282" class="LineNr">282 </span> fb <span class="subxComment"># enable interrupts</span> +<span id="L283" class="LineNr">283 </span> cf <span class="subxComment"># iret</span> +<span id="L284" class="LineNr">284 </span> +<span id="L285" class="LineNr">285 </span><span class="subxComment"># padding</span> +<span id="L286" class="LineNr">286 </span><span class="subxComment"># 158:</span> +<span id="L287" class="LineNr">287 </span> 00 00 00 00 00 00 00 00 +<span id="L288" class="LineNr">288 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L289" class="LineNr">289 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L290" class="LineNr">290 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<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="L295" class="LineNr">295 </span> +<span id="L296" class="LineNr">296 </span><span class="subxComment"># 1ce:</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"># offset 200 (address 0x7e00): interrupt descriptor table</span> -<span id="L317" class="LineNr">317 </span><span class="subxComment"># 32 entries * 8 bytes each = 256 bytes (0x100)</span> -<span id="L318" class="LineNr">318 </span><span class="subxComment"># idt_start:</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>00 00 00 00 00 00 00 00 -<span id="L321" class="LineNr">321 </span>00 00 00 00 00 00 00 00 -<span id="L322" class="LineNr">322 </span>00 00 00 00 00 00 00 00 -<span id="L323" class="LineNr">323 </span>00 00 00 00 00 00 00 00 -<span id="L324" class="LineNr">324 </span>00 00 00 00 00 00 00 00 -<span id="L325" class="LineNr">325 </span>00 00 00 00 00 00 00 00 -<span id="L326" class="LineNr">326 </span>00 00 00 00 00 00 00 00 +<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="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> -<span id="L329" class="LineNr">329 </span><span class="subxComment"># entry 8: clock</span> -<span id="L330" class="LineNr">330 </span> 00 7d <span class="subxComment"># target[0:16] = null interrupt handler [label]</span> -<span id="L331" class="LineNr">331 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> -<span id="L332" class="LineNr">332 </span> 00 <span class="subxComment"># unused</span> -<span id="L333" class="LineNr">333 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> -<span id="L334" class="LineNr">334 </span> 00 00 <span class="subxComment"># target[16:32]</span> +<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="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 9: keyboard</span> -<span id="L337" class="LineNr">337 </span> 10 7d <span class="subxComment"># target[0:16] = keyboard interrupt handler [label]</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>00 00 00 00 00 00 00 00 -<span id="L344" class="LineNr">344 </span>00 00 00 00 00 00 00 00 -<span id="L345" class="LineNr">345 </span>00 00 00 00 00 00 00 00 -<span id="L346" class="LineNr">346 </span>00 00 00 00 00 00 00 00 -<span id="L347" class="LineNr">347 </span>00 00 00 00 00 00 00 00 -<span id="L348" class="LineNr">348 </span>00 00 00 00 00 00 00 00 -<span id="L349" class="LineNr">349 </span>00 00 00 00 00 00 00 00 +<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 @@ -416,105 +416,105 @@ if ('onhashchange' in window) { <span id="L362" class="LineNr">362 </span>00 00 00 00 00 00 00 00 <span id="L363" class="LineNr">363 </span>00 00 00 00 00 00 00 00 <span id="L364" class="LineNr">364 </span>00 00 00 00 00 00 00 00 -<span id="L365" class="LineNr">365 </span><span class="subxComment"># idt_end:</span> -<span id="L366" class="LineNr">366 </span> -<span id="L367" class="LineNr">367 </span><span class="subxComment"># offset 300 (address 0x7f00):</span> -<span id="L368" class="LineNr">368 </span><span class="subxComment"># video mode info:</span> -<span id="L369" class="LineNr">369 </span> 00 00 <span class="subxComment"># attributes</span> -<span id="L370" class="LineNr">370 </span> 00 <span class="subxComment"># winA</span> -<span id="L371" class="LineNr">371 </span> 00 <span class="subxComment"># winB</span> -<span id="L372" class="LineNr">372 </span><span class="subxComment"># 304</span> -<span id="L373" class="LineNr">373 </span> 00 00 <span class="subxComment"># granularity</span> -<span id="L374" class="LineNr">374 </span> 00 00 <span class="subxComment"># winsize</span> -<span id="L375" class="LineNr">375 </span><span class="subxComment"># 308</span> -<span id="L376" class="LineNr">376 </span> 00 00 <span class="subxComment"># segmentA</span> -<span id="L377" class="LineNr">377 </span> 00 00 <span class="subxComment"># segmentB</span> -<span id="L378" class="LineNr">378 </span><span class="subxComment"># 30c</span> -<span id="L379" class="LineNr">379 </span> 00 00 00 00 <span class="subxComment"># realFctPtr (who knows)</span> -<span id="L380" class="LineNr">380 </span><span class="subxComment"># 310</span> -<span id="L381" class="LineNr">381 </span> 00 00 <span class="subxComment"># pitch</span> -<span id="L382" class="LineNr">382 </span> 00 00 <span class="subxComment"># Xres</span> -<span id="L383" class="LineNr">383 </span><span class="subxComment"># 314</span> -<span id="L384" class="LineNr">384 </span> 00 00 <span class="subxComment"># Yres</span> -<span id="L385" class="LineNr">385 </span> 00 00 <span class="subxComment"># Wchar Ychar</span> -<span id="L386" class="LineNr">386 </span><span class="subxComment"># 318</span> -<span id="L387" class="LineNr">387 </span> 00 <span class="subxComment"># planes</span> -<span id="L388" class="LineNr">388 </span> 00 <span class="subxComment"># bpp</span> -<span id="L389" class="LineNr">389 </span> 00 <span class="subxComment"># banks</span> -<span id="L390" class="LineNr">390 </span> 00 <span class="subxComment"># memory_model</span> -<span id="L391" class="LineNr">391 </span><span class="subxComment"># 31c</span> -<span id="L392" class="LineNr">392 </span> 00 <span class="subxComment"># bank_size</span> -<span id="L393" class="LineNr">393 </span> 00 <span class="subxComment"># image_pages</span> -<span id="L394" class="LineNr">394 </span> 00 <span class="subxComment"># reserved</span> -<span id="L395" class="LineNr">395 </span><span class="subxComment"># 31f</span> -<span id="L396" class="LineNr">396 </span> 00 00 <span class="subxComment"># red_mask red_position</span> -<span id="L397" class="LineNr">397 </span> 00 00 <span class="subxComment"># green_mask green_position</span> -<span id="L398" class="LineNr">398 </span> 00 00 <span class="subxComment"># blue_mask blue_position</span> -<span id="L399" class="LineNr">399 </span> 00 00 <span class="subxComment"># rsv_mask rsv_position</span> -<span id="L400" class="LineNr">400 </span> 00 <span class="subxComment"># directcolor_attributes</span> -<span id="L401" class="LineNr">401 </span><span class="subxComment"># 328</span> -<span id="L402" class="LineNr">402 </span> 00 00 00 00 <span class="subxComment"># physbase <== linear frame buffer</span> -<span id="L403" class="LineNr">403 </span> -<span id="L404" class="LineNr">404 </span><span class="subxComment"># 32c</span> -<span id="L405" class="LineNr">405 </span><span class="subxComment"># reserved for video mode info</span> -<span id="L406" class="LineNr">406 </span> 00 00 00 00 -<span id="L407" class="LineNr">407 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L408" class="LineNr">408 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L409" class="LineNr">409 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L410" class="LineNr">410 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L411" class="LineNr">411 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L412" class="LineNr">412 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L413" class="LineNr">413 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L365" class="LineNr">365 </span>00 00 00 00 00 00 00 00 +<span id="L366" class="LineNr">366 </span>00 00 00 00 00 00 00 00 +<span id="L367" class="LineNr">367 </span>00 00 00 00 00 00 00 00 +<span id="L368" class="LineNr">368 </span>00 00 00 00 00 00 00 00 +<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="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 -<span id="L420" class="LineNr">420 </span> -<span id="L421" class="LineNr">421 </span><span class="subxComment"># offset 400 (address 0x8000):</span> -<span id="L422" class="LineNr">422 </span><span class="subxComment"># keyboard normal map:</span> -<span id="L423" class="LineNr">423 </span>00 -<span id="L424" class="LineNr">424 </span><span class="subxComment"># es</span> -<span id="L425" class="LineNr">425 </span> 1b -<span id="L426" class="LineNr">426 </span><span class="subxComment"># |<--- digits -------------->| - = bs</span> -<span id="L427" class="LineNr">427 </span> 31 32 33 34 35 36 37 38 39 30 2d 3d 08 -<span id="L428" class="LineNr">428 </span><span class="subxComment"># offset 40f</span> -<span id="L429" class="LineNr">429 </span><span class="subxComment"># tb q w e r t y u i o p [ ]</span> -<span id="L430" class="LineNr">430 </span> 09 71 77 65 72 74 79 75 69 6f 70 5b 5d -<span id="L431" class="LineNr">431 </span><span class="subxComment"># offset 41c</span> -<span id="L432" class="LineNr">432 </span><span class="subxComment"># enter</span> -<span id="L433" class="LineNr">433 </span> 0a 00 -<span id="L434" class="LineNr">434 </span><span class="subxComment"># offset 41e</span> -<span id="L435" class="LineNr">435 </span><span class="subxComment"># a s d f g h j k l ; ' ` \</span> -<span id="L436" class="LineNr">436 </span> 61 73 64 66 67 68 6a 6b 6c 3b 27 60 00 5c -<span id="L437" class="LineNr">437 </span><span class="subxComment"># offset 42c</span> -<span id="L438" class="LineNr">438 </span><span class="subxComment"># z x c v b n m , . /</span> -<span id="L439" class="LineNr">439 </span> 7a 78 63 76 62 6e 6d 2c 2e 2f -<span id="L440" class="LineNr">440 </span><span class="subxComment"># offset 436</span> -<span id="L441" class="LineNr">441 </span> 00 00 00 00 00 00 00 00 00 00 -<span id="L442" class="LineNr">442 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L443" class="LineNr">443 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L444" class="LineNr">444 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L445" class="LineNr">445 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L446" class="LineNr">446 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L447" class="LineNr">447 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L448" class="LineNr">448 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L420" class="LineNr">420 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L421" class="LineNr">421 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L422" class="LineNr">422 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L423" class="LineNr">423 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<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> -<span id="L455" class="LineNr">455 </span><span class="subxComment"># 500:</span> -<span id="L456" class="LineNr">456 </span><span class="subxComment"># keyboard shift map:</span> +<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>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L462" class="LineNr">462 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L463" class="LineNr">463 </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 @@ -524,16 +524,16 @@ if ('onhashchange' in window) { <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> -<span id="L474" class="LineNr">474 </span><span class="subxComment"># 600:</span> -<span id="L475" class="LineNr">475 </span><span class="subxComment"># keyboard ctrl map:</span> +<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>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L481" class="LineNr">481 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L482" class="LineNr">482 </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 @@ -543,16 +543,16 @@ if ('onhashchange' in window) { <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> -<span id="L493" class="LineNr">493 </span><span class="subxComment"># padding (there might be more keyboard tables)</span> -<span id="L494" class="LineNr">494 </span><span class="subxComment"># 700:</span> +<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>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L500" class="LineNr">500 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L501" class="LineNr">501 </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 @@ -562,15 +562,15 @@ if ('onhashchange' in window) { <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> -<span id="L512" class="LineNr">512 </span><span class="subxComment"># 800:</span> +<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>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L519" class="LineNr">519 </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 @@ -596,14 +596,14 @@ if ('onhashchange' in window) { <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><span class="subxComment"># a00:</span> +<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>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 @@ -629,9 +629,16 @@ if ('onhashchange' in window) { <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><span class="subxComment"># offset c00 (address 0x8800)</span> -<span id="L579" class="LineNr">579 </span> -<span id="L580" class="LineNr">580 </span><span class="subxComment"># vim:ft=subx</span> +<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> </pre> </body> </html> diff --git a/html/baremetal/ex3.hex.html b/html/baremetal/ex3.hex.html index d2cf7595..b39c442f 100644 --- a/html/baremetal/ex3.hex.html +++ b/html/baremetal/ex3.hex.html @@ -51,63 +51,64 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/main/baremetal/ex3.hex'>https://github.com/akkartik/mu/blob/main/baremetal/ex3.hex</a> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Draw pixels in response to keyboard events.</span> -<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To run, first prepare a realistically sized disk image:</span> -<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB</span> -<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># Load the program on the disk image:</span> -<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># cat baremetal/boot.hex baremetal/ex3.hex |./bootstrap run apps/hex > a.bin</span> -<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># dd if=a.bin of=disk.img conv=notrunc</span> -<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># To run:</span> -<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># qemu-system-i386 disk.img</span> -<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><span class="subxComment"># main: (address 0x8800)</span> -<span id="L14" class="LineNr">14 </span> -<span id="L15" class="LineNr">15 </span><span class="subxComment"># eax <- LFB</span> -<span id="L16" class="LineNr">16 </span>8b <span class="subxComment"># copy *rm32 to r32</span> -<span id="L17" class="LineNr">17 </span> 05 <span class="subxComment"># 00/mod/indirect 000/r32/eax 101/rm32/use-disp32</span> -<span id="L18" class="LineNr">18 </span> 28 7f 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L19" class="LineNr">19 </span> -<span id="L20" class="LineNr">20 </span><span class="subxComment"># var read index/ecx: byte = 0</span> -<span id="L21" class="LineNr">21 </span>31 c9 <span class="subxComment"># ecx <- xor ecx; 11/direct 001/r32/ecx 001/rm32/ecx</span> -<span id="L22" class="LineNr">22 </span> -<span id="L23" class="LineNr">23 </span><span class="subxComment"># $loop:</span> -<span id="L24" class="LineNr">24 </span> <span class="subxComment"># CL = *read index</span> -<span id="L25" class="LineNr">25 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> -<span id="L26" class="LineNr">26 </span> 0d <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span> -<span id="L27" class="LineNr">27 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L28" class="LineNr">28 </span> <span class="subxComment"># CL = *(keyboard buffer + ecx)</span> -<span id="L29" class="LineNr">29 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> -<span id="L30" class="LineNr">30 </span> 89 <span class="subxComment"># 10/mod/*+disp32 001/r8/cl 001/rm32/ecx</span> -<span id="L31" class="LineNr">31 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L32" class="LineNr">32 </span> <span class="subxComment"># if (CL == 0) loop (spin loop)</span> -<span id="L33" class="LineNr">33 </span> 80 -<span id="L34" class="LineNr">34 </span> f9 <span class="subxComment"># 11/mod/direct 111/subop/compare 001/rm8/CL</span> -<span id="L35" class="LineNr">35 </span> 00 <span class="subxComment"># imm8</span> -<span id="L36" class="LineNr">36 </span> 74 ef <span class="subxComment"># loop -17 [label]</span> -<span id="L37" class="LineNr">37 </span><span class="subxComment"># offset 0x19:</span> -<span id="L38" class="LineNr">38 </span> <span class="subxComment"># otherwise increment read index</span> -<span id="L39" class="LineNr">39 </span> fe <span class="subxComment"># increment byte</span> -<span id="L40" class="LineNr">40 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> -<span id="L41" class="LineNr">41 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L42" class="LineNr">42 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> -<span id="L43" class="LineNr">43 </span> 80 <span class="subxComment"># and byte</span> -<span id="L44" class="LineNr">44 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> -<span id="L45" class="LineNr">45 </span> cf 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L46" class="LineNr">46 </span> 0f <span class="subxComment"># imm8</span> -<span id="L47" class="LineNr">47 </span> <span class="subxComment"># print a pixel in fluorescent green</span> -<span id="L48" class="LineNr">48 </span> c6 <span class="subxComment"># copy imm8 to m8 at rm32</span> -<span id="L49" class="LineNr">49 </span> 00 <span class="subxComment"># 00/mod/indirect 000/subop 000/rm32/eax</span> -<span id="L50" class="LineNr">50 </span> 31 <span class="subxComment"># imm32</span> -<span id="L51" class="LineNr">51 </span> 40 <span class="subxComment"># increment eax</span> -<span id="L52" class="LineNr">52 </span> eb dc <span class="subxComment"># loop -36 [label]</span> -<span id="L53" class="LineNr">53 </span> -<span id="L54" class="LineNr">54 </span><span class="subxComment"># $break:</span> -<span id="L55" class="LineNr">55 </span>e9 fb ff ff ff <span class="subxComment"># hang indefinitely</span> -<span id="L56" class="LineNr">56 </span> -<span id="L57" class="LineNr">57 </span><span class="subxComment"># vim:ft=subx</span> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Draw pixels in response to keyboard events, starting from the top-left</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># and in raster order.</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment">#</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># To run, first prepare a realistically sized disk image:</span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># Load the program on the disk image:</span> +<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># cat baremetal/boot.hex baremetal/ex3.hex |./bootstrap run apps/hex > a.bin</span> +<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># dd if=a.bin of=disk.img conv=notrunc</span> +<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># To run:</span> +<span id="L10" class="LineNr">10 </span><span class="subxComment"># qemu-system-i386 disk.img</span> +<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="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> +<span id="L18" class="LineNr">18 </span> 05 <span class="subxComment"># 00/mod/indirect 000/r32/eax 101/rm32/use-disp32</span> +<span id="L19" class="LineNr">19 </span> 28 7f 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L20" class="LineNr">20 </span> +<span id="L21" class="LineNr">21 </span><span class="subxComment"># var read index/ecx: byte = 0</span> +<span id="L22" class="LineNr">22 </span>31 c9 <span class="subxComment"># ecx <- xor ecx; 11/direct 001/r32/ecx 001/rm32/ecx</span> +<span id="L23" class="LineNr">23 </span> +<span id="L24" class="LineNr">24 </span><span class="subxComment"># $loop:</span> +<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="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> +<span id="L32" class="LineNr">32 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L33" class="LineNr">33 </span> <span class="subxComment"># if (CL == 0) loop (spin loop)</span> +<span id="L34" class="LineNr">34 </span> 80 +<span id="L35" class="LineNr">35 </span> f9 <span class="subxComment"># 11/mod/direct 111/subop/compare 001/rm8/CL</span> +<span id="L36" class="LineNr">36 </span> 00 <span class="subxComment"># imm8</span> +<span id="L37" class="LineNr">37 </span> 74 ef <span class="subxComment"># loop -17 [label]</span> +<span id="L38" class="LineNr">38 </span><span class="subxComment"># offset 0x19:</span> +<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="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="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> +<span id="L50" class="LineNr">50 </span> 00 <span class="subxComment"># 00/mod/indirect 000/subop 000/rm32/eax</span> +<span id="L51" class="LineNr">51 </span> 31 <span class="subxComment"># imm32</span> +<span id="L52" class="LineNr">52 </span> 40 <span class="subxComment"># increment eax</span> +<span id="L53" class="LineNr">53 </span> eb dc <span class="subxComment"># loop -36 [label]</span> +<span id="L54" class="LineNr">54 </span> +<span id="L55" class="LineNr">55 </span><span class="subxComment"># $break:</span> +<span id="L56" class="LineNr">56 </span>e9 fb ff ff ff <span class="subxComment"># hang indefinitely</span> +<span id="L57" class="LineNr">57 </span> +<span id="L58" class="LineNr">58 </span><span class="subxComment"># vim:ft=subx</span> </pre> </body> </html> |