diff options
Diffstat (limited to 'html/examples/ex5.subx.html')
| -rw-r--r-- | html/examples/ex5.subx.html | 44 |
1 files changed, 20 insertions, 24 deletions
diff --git a/html/examples/ex5.subx.html b/html/examples/ex5.subx.html index ba63cdd8..f5112fa7 100644 --- a/html/examples/ex5.subx.html +++ b/html/examples/ex5.subx.html @@ -58,10 +58,10 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Read a character from stdin, save it to a local on the stack, write it to stdout.</span> <span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span> <span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># $ ./subx translate examples/ex5.subx -o examples/ex5</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># $ ./subx translate init.linux examples/ex5.subx -o examples/ex5</span> <span id="L5" class="LineNr"> 5 </span><span class="subxComment"># $ ./subx run examples/ex5</span> <span id="L6" class="LineNr"> 6 </span> -<span id="L7" class="LineNr"> 7 </span>== code 0x09000000 +<span id="L7" class="LineNr"> 7 </span>== code <span id="L8" class="LineNr"> 8 </span><span class="subxComment"># instruction effective address register displacement immediate</span> <span id="L9" class="LineNr"> 9 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> <span id="L10" class="LineNr">10 </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> @@ -71,7 +71,7 @@ if ('onhashchange' in window) { <span id="L14" class="LineNr">14 </span> <span class="subxComment"># allocate x on the stack</span> <span id="L15" class="LineNr">15 </span> 81 5/subop/subtract 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> 4/imm32 <span class="subxComment"># subtract from esp</span> <span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span> <span class="subxComment"># syscall(read, stdin, x, 1)</span> +<span id="L17" class="LineNr">17 </span> <span class="subxComment"># read(stdin, x, 1)</span> <span id="L18" class="LineNr">18 </span> <span class="subxS1Comment"># . fd = 0 (stdin)</span> <span id="L19" class="LineNr">19 </span> bb/copy-to-ebx 0/imm32 <span id="L20" class="LineNr">20 </span> <span class="subxS1Comment"># . data = x (location to write result to)</span> @@ -79,27 +79,23 @@ if ('onhashchange' in window) { <span id="L22" class="LineNr">22 </span> <span class="subxS1Comment"># . size = 1 character</span> <span id="L23" class="LineNr">23 </span> ba/copy-to-edx 1/imm32 <span id="L24" class="LineNr">24 </span> <span class="subxS1Comment"># . syscall</span> -<span id="L25" class="LineNr">25 </span> b8/copy-to-eax 3/imm32/read -<span id="L26" class="LineNr">26 </span> cd/syscall 0x80/imm8 -<span id="L27" class="LineNr">27 </span> -<span id="L28" class="LineNr">28 </span> <span class="subxComment"># syscall(write, stdout, x, 1)</span> -<span id="L29" class="LineNr">29 </span> <span class="subxS1Comment"># . fd = 1 (stdout)</span> -<span id="L30" class="LineNr">30 </span> bb/copy-to-ebx 1/imm32 -<span id="L31" class="LineNr">31 </span> <span class="subxS1Comment"># . data = x (location to read from)</span> -<span id="L32" class="LineNr">32 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 4/base/esp 4/index/none 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy esp+4 to ecx</span> -<span id="L33" class="LineNr">33 </span> <span class="subxS1Comment"># . size = 1 character</span> -<span id="L34" class="LineNr">34 </span> ba/copy-to-edx 1/imm32 -<span id="L35" class="LineNr">35 </span> <span class="subxS1Comment"># . syscall</span> -<span id="L36" class="LineNr">36 </span> b8/copy-to-eax 4/imm32/write -<span id="L37" class="LineNr">37 </span> cd/syscall 0x80/imm8 -<span id="L38" class="LineNr">38 </span> -<span id="L39" class="LineNr">39 </span> <span class="subxComment"># syscall(exit, ebx)</span> -<span id="L40" class="LineNr">40 </span> b8/copy-to-eax 1/imm32/exit -<span id="L41" class="LineNr">41 </span> cd/syscall 0x80/imm8 -<span id="L42" class="LineNr">42 </span> -<span id="L43" class="LineNr">43 </span>== data 0x0a000000 -<span id="L44" class="LineNr">44 </span> -<span id="L45" class="LineNr">45 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +<span id="L25" class="LineNr">25 </span> e8/call syscall_read/disp32 +<span id="L26" class="LineNr">26 </span> +<span id="L27" class="LineNr">27 </span> <span class="subxComment"># syscall(write, stdout, x, 1)</span> +<span id="L28" class="LineNr">28 </span> <span class="subxS1Comment"># . fd = 1 (stdout)</span> +<span id="L29" class="LineNr">29 </span> bb/copy-to-ebx 1/imm32 +<span id="L30" class="LineNr">30 </span> <span class="subxS1Comment"># . data = x (location to read from)</span> +<span id="L31" class="LineNr">31 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 4/base/esp 4/index/none 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy esp+4 to ecx</span> +<span id="L32" class="LineNr">32 </span> <span class="subxS1Comment"># . size = 1 character</span> +<span id="L33" class="LineNr">33 </span> ba/copy-to-edx 1/imm32 +<span id="L34" class="LineNr">34 </span> <span class="subxS1Comment"># . syscall</span> +<span id="L35" class="LineNr">35 </span> b8/copy-to-eax 4/imm32/write +<span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 +<span id="L37" class="LineNr">37 </span> +<span id="L38" class="LineNr">38 </span> <span class="subxComment"># exit(ebx)</span> +<span id="L39" class="LineNr">39 </span> e8/call syscall_exit/disp32 +<span id="L40" class="LineNr">40 </span> +<span id="L41" class="LineNr">41 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |