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authorKartik Agaram <vc@akkartik.com>2020-01-27 00:39:46 -0800
committerKartik Agaram <vc@akkartik.com>2020-01-27 00:39:46 -0800
commit2104d1a75b76dbffc0b15a96c98d94e7a16594e8 (patch)
tree2a839b86e76431a9bbe4bf155f7411171a26d7f8 /html/053new-segment.subx.html
parent71eb22a5bf94f5fa0a3c95212450e3c6a1a6a990 (diff)
downloadmu-2104d1a75b76dbffc0b15a96c98d94e7a16594e8.tar.gz
5925
Diffstat (limited to 'html/053new-segment.subx.html')
-rw-r--r--html/053new-segment.subx.html14
1 files changed, 7 insertions, 7 deletions
diff --git a/html/053new-segment.subx.html b/html/053new-segment.subx.html
index 0fdfaff2..fac198a7 100644
--- a/html/053new-segment.subx.html
+++ b/html/053new-segment.subx.html
@@ -65,8 +65,8 @@ if ('onhashchange' in window) {
 <span id="L5" class="LineNr"> 5 </span><span class="subxComment"># Currently an allocation descriptor consists of just the bounds of the pool of</span>
 <span id="L6" class="LineNr"> 6 </span><span class="subxComment"># available memory:</span>
 <span id="L7" class="LineNr"> 7 </span><span class="subxComment">#</span>
-<span id="L8" class="LineNr"> 8 </span><span class="subxComment">#   curr : address</span>
-<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#   end : address</span>
+<span id="L8" class="LineNr"> 8 </span><span class="subxComment">#   curr: address</span>
+<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#   end: address</span>
 <span id="L10" class="LineNr">10 </span><span class="subxComment">#</span>
 <span id="L11" class="LineNr">11 </span><span class="subxComment"># This isn't enough information to reclaim individual allocations. We can't</span>
 <span id="L12" class="LineNr">12 </span><span class="subxComment"># support arbitrary reclamation yet.</span>
@@ -77,7 +77,7 @@ if ('onhashchange' in window) {
 <span id="L17" class="LineNr">17 </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="L18" class="LineNr">18 </span>
 <span id="L19" class="LineNr">19 </span><span class="SpecialChar">Entry</span>:   <span class="subxComment"># manual test</span>
-<span id="L20" class="LineNr">20 </span>    <span class="subxComment"># var ad/ecx : allocation-descriptor</span>
+<span id="L20" class="LineNr">20 </span>    <span class="subxComment"># var ad/ecx: allocation-descriptor</span>
 <span id="L21" class="LineNr">21 </span>    68/push  0/imm32/limit
 <span id="L22" class="LineNr">22 </span>    68/push  0/imm32/curr
 <span id="L23" class="LineNr">23 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <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 ecx</span>
@@ -89,7 +89,7 @@ if ('onhashchange' in window) {
 <span id="L29" class="LineNr">29 </span>    e8/call  <a href='053new-segment.subx.html#L41'>new-segment</a>/disp32
 <span id="L30" class="LineNr">30 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L31" class="LineNr">31 </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>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L32" class="LineNr">32 </span>    <span class="subxComment"># var eax : (addr _) = ad-&gt;curr</span>
+<span id="L32" class="LineNr">32 </span>    <span class="subxComment"># var eax: (addr _) = ad-&gt;curr</span>
 <span id="L33" class="LineNr">33 </span>    8b/copy                         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"># copy *ecx to eax</span>
 <span id="L34" class="LineNr">34 </span>    <span class="subxComment"># write to *eax to check that we have access to the newly-allocated segment</span>
 <span id="L35" class="LineNr">35 </span>    c7          0/subop/copy        0/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x34/imm32        <span class="subxComment"># copy to *eax</span>
@@ -98,7 +98,7 @@ if ('onhashchange' in window) {
 <span id="L38" class="LineNr">38 </span>    b8/copy-to-eax  1/imm32/exit
 <span id="L39" class="LineNr">39 </span>    cd/syscall  0x80/imm8
 <span id="L40" class="LineNr">40 </span>
-<span id="L41" class="LineNr">41 </span><span class="subxFunction">new-segment</span>:  <span class="subxComment"># len : int, ad : allocation-descriptor</span>
+<span id="L41" class="LineNr">41 </span><span class="subxFunction">new-segment</span>:  <span class="subxComment"># len: int, ad: (addr allocation-descriptor)</span>
 <span id="L42" class="LineNr">42 </span>    <span class="subxS1Comment"># . prologue</span>
 <span id="L43" class="LineNr">43 </span>    55/push-ebp
 <span id="L44" class="LineNr">44 </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>
@@ -115,9 +115,9 @@ if ('onhashchange' in window) {
 <span id="L55" class="LineNr">55 </span>    <span class="subxComment"># copy {eax, eax+len} to *ad</span>
 <span id="L56" class="LineNr">56 </span>    <span class="subxS1Comment"># . ebx = ad</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>          3/r32/ebx   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to ebx</span>
-<span id="L58" class="LineNr">58 </span>    <span class="subxS1Comment"># . *ebx = eax</span>
+<span id="L58" class="LineNr">58 </span>    <span class="subxS1Comment"># . ad-&gt;curr = eax</span>
 <span id="L59" class="LineNr">59 </span>    89/copy                         0/mod/indirect  3/rm32/ebx   <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"># copy eax to *ebx</span>
-<span id="L60" class="LineNr">60 </span>    <span class="subxS1Comment"># . *(ebx+4) = eax+len</span>
+<span id="L60" class="LineNr">60 </span>    <span class="subxS1Comment"># . ad-&gt;end = eax+len</span>
 <span id="L61" class="LineNr">61 </span>    03/add                          1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># add *(ebp+8) to eax</span>
 <span id="L62" class="LineNr">62 </span>    89/copy                         1/mod/*+disp8   3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax to *(ebx+4)</span>
 <span id="L63" class="LineNr">63 </span><span class="Constant">$new-segment:end</span>: