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ZealOS/docs/Kernel/Memory/MAllocFree.CC.html
TomAwezome 293db76ddb Update documentation.
2021-10-27 03:28:16 -04:00

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<a name="l1"></a><span class=cF1>asm</span><span class=cF0> {
<a name="l2"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l3"></a></span><span class=cF2>//See </span><a href="https://zeal-operating-system.github.io/ZealOS/Doc/Credits.DD.html#l1"><span class=cF4>::/Doc/Credits.DD</span></a><span class=cF2>.</span><span class=cF0>
<a name="l4"></a></span><span class=cFD>_MALLOC</span><span class=cF0>::
<a name="l5"></a></span><span class=cF2>// Throws 'OutMem'</span><span class=cF0>
<a name="l6"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l7"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>, </span><span class=cFC>RSP</span><span class=cF0>
<a name="l8"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l9"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l10"></a>
<a name="l11"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l12"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG2</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l13"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l14"></a> </span><span class=cF1>JNZ</span><span class=cF0> @@05
<a name="l15"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cFC>FS</span><span class=cF0>:</span><span class=cF9>CTask</span><span class=cF0>.addr[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l16"></a>@@05: </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CTask</span><span class=cF0>.task_signature[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>TASK_SIGNATURE_VAL</span><span class=cF0>
<a name="l17"></a>
<a name="l18"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF9>CTask</span><span class=cF0>.task_signature == </span><span class=cF9>CHeapCtrl</span><span class=cF0>.hc_signature </span><span class=cF2>//location signature same</span><span class=cF0>
<a name="l19"></a>
<a name="l20"></a> </span><span class=cF1>JNE</span><span class=cF0> @@10
<a name="l21"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CTask</span><span class=cF0>.data_heap[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l22"></a>@@10: </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.hc_signature[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HEAP_CTRL_SIGNATURE_VAL</span><span class=cF0>
<a name="l23"></a> </span><span class=cF1>JE</span><span class=cF0> @@15
<a name="l24"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l25"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>SysBadMAlloc</span><span class=cF0>
<a name="l26"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> </span><span class=cFD>_SYS_HLT</span><span class=cF0>
<a name="l27"></a>
<a name="l28"></a>@@15: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l29"></a> </span><span class=cF1>PUSHFD</span><span class=cF0>
<a name="l30"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0> + </span><span class=cFE>7</span><span class=cF0> </span><span class=cF2>//round-up to I64</span><span class=cF0>
<a name="l31"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>AL</span><span class=cF0>, </span><span class=cFE>0xF8</span><span class=cF0>
<a name="l32"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0> &gt;= </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemUnused</span><span class=cF0>)
<a name="l33"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l34"></a> </span><span class=cF1>JAE</span><span class=cF0> @@20
<a name="l35"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l36"></a>@@20:
<a name="l37"></a>
<a name="l38"></a> </span><span class=cF1>CLI</span><span class=cF0>
<a name="l39"></a>@@25: </span><span class=cF1>LOCK</span><span class=cF0>
<a name="l40"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.locked_flags[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HClf_LOCKED</span><span class=cF0>
<a name="l41"></a> </span><span class=cF1>PAUSE</span><span class=cF0> </span><span class=cF2>//don't know if this instruction helps</span><span class=cF0>
<a name="l42"></a> </span><span class=cF1>JC</span><span class=cF0> @@25
<a name="l43"></a>
<a name="l44"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_HEAP_HASH_SIZE</span><span class=cF0>
<a name="l45"></a> </span><span class=cF1>JAE</span><span class=cF0> @@30
<a name="l46"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.heap_hash[</span><span class=cFC>RAX</span><span class=cF0> + </span><span class=cFC>RDX</span><span class=cF0>]
<a name="l47"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RSI</span><span class=cF0>
<a name="l48"></a> </span><span class=cF1>JZ</span><span class=cF0> @@35
<a name="l49"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RCX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l50"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.heap_hash[</span><span class=cFC>RAX</span><span class=cF0> + </span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RCX</span><span class=cF0>
<a name="l51"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> MALLOC_ALMOST_DONE
<a name="l52"></a>
<a name="l53"></a></span><span class=cF2>//Big allocation</span><span class=cF0>
<a name="l54"></a>@@30: </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>) + </span><span class=cF3>MEM_PAG_SIZE</span><span class=cF0> - </span><span class=cFE>1</span><span class=cF0>
<a name="l55"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l56"></a>
<a name="l57"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0> </span><span class=cF2>//preserve HeapCtrl</span><span class=cF0>
<a name="l58"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l59"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l60"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>MemPagTaskAlloc</span><span class=cF0>
<a name="l61"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l62"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l63"></a> </span><span class=cF1>JZ</span><span class=cF0> @@45 </span><span class=cF2>//Out of memory</span><span class=cF0>
<a name="l64"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l65"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.pags[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l66"></a>
<a name="l67"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l68"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>)
<a name="l69"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>)
<a name="l70"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> MALLOC_ALMOST_DONE
<a name="l71"></a>
<a name="l72"></a></span><span class=cF2>//Little allocation, chunk-off piece from free list chunks</span><span class=cF0>
<a name="l73"></a>@@35: </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.malloc_free_list - </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l74"></a>
<a name="l75"></a>@@40: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RSI</span><span class=cF0>
<a name="l76"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l77"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RSI</span><span class=cF0>
<a name="l78"></a> </span><span class=cF1>JNZ</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> @@60
<a name="l79"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0> </span><span class=cF2>//-**** save byte size</span><span class=cF0>
<a name="l80"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFE>16</span><span class=cF0> * </span><span class=cF3>MEM_PAG_SIZE</span><span class=cF0> - </span><span class=cFE>1</span><span class=cF0>
<a name="l81"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l82"></a>
<a name="l83"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0> </span><span class=cF2>//preserve HeapCtrl</span><span class=cF0>
<a name="l84"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l85"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l86"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>MemPagTaskAlloc</span><span class=cF0>
<a name="l87"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l88"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l89"></a> </span><span class=cF1>JNZ</span><span class=cF0> @@50
<a name="l90"></a>
<a name="l91"></a></span><span class=cF2>//Out of memory</span><span class=cF0>
<a name="l92"></a>@@45: </span><span class=cF1>LOCK</span><span class=cF0>
<a name="l93"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.locked_flags[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HClf_LOCKED</span><span class=cF0>
<a name="l94"></a> </span><span class=cF1>POPFD</span><span class=cF0>
<a name="l95"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF3>TRUE</span><span class=cF0>
<a name="l96"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF6>'OutMem'</span><span class=cF0>
<a name="l97"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l98"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> &amp;</span><span class=cF5>throw</span><span class=cF0>
<a name="l99"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> MALLOC_FINAL_EXIT </span><span class=cF2>//Never gets here, hopefully.</span><span class=cF0>
<a name="l100"></a>
<a name="l101"></a>@@50: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l102"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.pags[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l103"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l104"></a>
<a name="l105"></a></span><span class=cF2>//Can it be combined with last chunk? (Never Free these chunks.)</span><span class=cF0>
<a name="l106"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.last_mergable[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l107"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RSI</span><span class=cF0> + </span><span class=cFC>RAX</span><span class=cF0>]
<a name="l108"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l109"></a> </span><span class=cF1>JNE</span><span class=cF0> @@55
<a name="l110"></a>
<a name="l111"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l112"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.pags[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l113"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.pags[</span><span class=cFC>RSI</span><span class=cF0>],</span><span class=cFC>EAX</span><span class=cF0>
<a name="l114"></a></span><span class=cF2>//QueueRemove</span><span class=cF0>
<a name="l115"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.next[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l116"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.last[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l117"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.last[</span><span class=cFC>RAX</span><span class=cF0>], </span><span class=cFC>RBX</span><span class=cF0>
<a name="l118"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.next[</span><span class=cFC>RBX</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l119"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l120"></a>
<a name="l121"></a>@@55: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.last_mergable[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RSI</span><span class=cF0>
<a name="l122"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>)[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l123"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>)
<a name="l124"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.malloc_free_list - </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l125"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l126"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l127"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l128"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RBX</span><span class=cF0>], </span><span class=cFC>RSI</span><span class=cF0>
<a name="l129"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0> </span><span class=cF2>//+****</span><span class=cF0>
<a name="l130"></a> </span><span class=cF1>JMP</span><span class=cF0> @@70
<a name="l131"></a>@@60: </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l132"></a> </span><span class=cF1>JB</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> @@40
<a name="l133"></a> </span><span class=cF1>JNE</span><span class=cF0> @@70
<a name="l134"></a>
<a name="l135"></a>@@65: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l136"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RBX</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l137"></a> </span><span class=cF1>JMP</span><span class=cF0> MALLOC_ALMOST_DONE
<a name="l138"></a>
<a name="l139"></a>@@70: </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0> </span><span class=cF2>//UPDATE FREE ENTRY</span><span class=cF0>
<a name="l140"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemUnused</span><span class=cF0>)
<a name="l141"></a> </span><span class=cF1>JAE</span><span class=cF0> @@75 </span><span class=cF2>//take from top of block</span><span class=cF0>
<a name="l142"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0> </span><span class=cF2>//doesn't fit, undo</span><span class=cF0>
<a name="l143"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> @@40
<a name="l144"></a>
<a name="l145"></a>@@75: </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l146"></a>
<a name="l147"></a>MALLOC_ALMOST_DONE:
<a name="l148"></a></span><span class=cF2>//RSI = res - CMemUsed.size</span><span class=cF0>
<a name="l149"></a></span><span class=cF2>//RAX = size + CMemUsed.size</span><span class=cF0>
<a name="l150"></a></span><span class=cF2>//RDX = HeapCtrl</span><span class=cF0>
<a name="l151"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.used_u8s[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l152"></a>
<a name="l153"></a>#</span><span class=cF1>if</span><span class=cF0> </span><span class=cF3>_CONFIG_HEAP_DEBUG</span><span class=cF0>
<a name="l154"></a></span><span class=cF2>//QueueInsert</span><span class=cF0>
<a name="l155"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.last_um[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l156"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RDI</span><span class=cF0>], </span><span class=cFC>RSI</span><span class=cF0>
<a name="l157"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.last_um[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RSI</span><span class=cF0>
<a name="l158"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.last[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l159"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.next_um - </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RDX</span><span class=cF0>]
<a name="l160"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l161"></a>
<a name="l162"></a></span><span class=cF2>//Caller1/Caller2</span><span class=cF0>
<a name="l163"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l164"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFD>MEM_HEAP_LIMIT</span><span class=cF0>]
<a name="l165"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RIP</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l166"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l167"></a> </span><span class=cF1>JB</span><span class=cF0> @@80
<a name="l168"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l169"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.caller1[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l170"></a> </span><span class=cF1>JMP</span><span class=cF0> @@90
<a name="l171"></a>@@80: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.caller1[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l172"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RBP</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l173"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l174"></a> </span><span class=cF1>JB</span><span class=cF0> @@85
<a name="l175"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l176"></a> </span><span class=cF1>JMP</span><span class=cF0> @@90
<a name="l177"></a>@@85: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RIP</span><span class=cF0>[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l178"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l179"></a> </span><span class=cF1>JB</span><span class=cF0> @@90
<a name="l180"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l181"></a>@@90: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.caller2[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l182"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l183"></a>
<a name="l184"></a>#</span><span class=cF1>endif</span><span class=cF0>
<a name="l185"></a> </span><span class=cF1>LOCK</span><span class=cF0>
<a name="l186"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.locked_flags[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HClf_LOCKED</span><span class=cF0>
<a name="l187"></a> </span><span class=cF1>POPFD</span><span class=cF0>
<a name="l188"></a>
<a name="l189"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l190"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.hc[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDX</span><span class=cF0>
<a name="l191"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l192"></a>
<a name="l193"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [</span><span class=cFD>SYS_SEMAS</span><span class=cF0> + </span><span class=cF3>SEMA_HEAPLOG_ACTIVE</span><span class=cF0> * </span><span class=cF3>DEFAULT_CACHE_LINE_WIDTH</span><span class=cF0>], </span><span class=cFE>1</span><span class=cF0>
<a name="l194"></a> </span><span class=cF1>JZ</span><span class=cF0> @@105
<a name="l195"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l196"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l197"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFD>SYS_EXTERN_TABLE</span><span class=cF0>]
<a name="l198"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>EXT_HEAPLOG_MALLOC</span><span class=cF0>*</span><span class=cFE>8</span><span class=cF0>[</span><span class=cFC>RAX</span><span class=cF0>]
<a name="l199"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l200"></a> </span><span class=cF1>JZ</span><span class=cF0> @@95
<a name="l201"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l202"></a> </span><span class=cF1>JMP</span><span class=cF0> @@100
<a name="l203"></a>@@95: </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSP</span><span class=cF0>, </span><span class=cFE>8</span><span class=cF0>
<a name="l204"></a>@@100: </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l205"></a>
<a name="l206"></a>@@105: </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [</span><span class=cFD>SYS_HEAP_INIT_FLAG</span><span class=cF0>], </span><span class=cFE>1</span><span class=cF0>
<a name="l207"></a> </span><span class=cF1>JZ</span><span class=cF0> MALLOC_FINAL_EXIT
<a name="l208"></a>
<a name="l209"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l210"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RCX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RAX</span><span class=cF0>]
<a name="l211"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RCX</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l212"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l213"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AL</span><span class=cF0>, </span><span class=cF1>U8</span><span class=cF0> [</span><span class=cFD>SYS_HEAP_INIT_VAL</span><span class=cF0>]
<a name="l214"></a> </span><span class=cF1>REP_STOSB</span><span class=cF0>
<a name="l215"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l216"></a>
<a name="l217"></a>MALLOC_FINAL_EXIT:
<a name="l218"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l219"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l220"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l221"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>16</span><span class=cF0>
<a name="l222"></a>
<a name="l223"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l224"></a></span><span class=cFD>_FREE</span><span class=cF0>::
<a name="l225"></a></span><span class=cF2>//Be aware of </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/Memory/MAllocFree.CC.html#l44"><span class=cF4>heap_hash</span></a><span class=cF2> in </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/Memory/MemPag.CC.html#l140"><span class=cF4>MemPagTaskAlloc</span></a><span class=cF2>().</span><span class=cF0>
<a name="l226"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l227"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>, </span><span class=cFC>RSP</span><span class=cF0>
<a name="l228"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l229"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l230"></a>
<a name="l231"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [</span><span class=cFD>SYS_SEMAS</span><span class=cF0> + </span><span class=cF3>SEMA_HEAPLOG_ACTIVE</span><span class=cF0> * </span><span class=cF3>DEFAULT_CACHE_LINE_WIDTH</span><span class=cF0>], </span><span class=cFE>1</span><span class=cF0>
<a name="l232"></a> </span><span class=cF1>JZ</span><span class=cF0> @@15
<a name="l233"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l234"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l235"></a> </span><span class=cF1>JZ</span><span class=cF0> @@05
<a name="l236"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l237"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l238"></a> </span><span class=cF1>JGE</span><span class=cF0> @@05 </span><span class=cF2>//Aligned alloced chunks have neg size</span><span class=cF0>
<a name="l239"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l240"></a>@@05: </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>
<a name="l241"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFD>SYS_EXTERN_TABLE</span><span class=cF0>]
<a name="l242"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>EXT_HEAPLOG_FREE</span><span class=cF0>*</span><span class=cFE>8</span><span class=cF0>[</span><span class=cFC>RAX</span><span class=cF0>]
<a name="l243"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l244"></a> </span><span class=cF1>JZ</span><span class=cF0> @@10
<a name="l245"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l246"></a> </span><span class=cF1>JMP</span><span class=cF0> @@15
<a name="l247"></a>@@10: </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSP</span><span class=cF0>, </span><span class=cFE>8</span><span class=cF0>
<a name="l248"></a>
<a name="l249"></a>@@15: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l250"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RSI</span><span class=cF0>
<a name="l251"></a>
<a name="l252"></a>#</span><span class=cF1>if</span><span class=cF0> </span><span class=cF3>_CONFIG_HEAP_DEBUG</span><span class=cF0>
<a name="l253"></a> </span><span class=cF1>JZ</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> FREE_DONE
<a name="l254"></a>#</span><span class=cF1>else</span><span class=cF0>
<a name="l255"></a> </span><span class=cF1>JZ</span><span class=cF0> FREE_DONE
<a name="l256"></a>#</span><span class=cF1>endif</span><span class=cF0>
<a name="l257"></a>
<a name="l258"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l259"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l260"></a> </span><span class=cF1>JGE</span><span class=cF0> @@20 </span><span class=cF2>//Aligned alloced chunks have neg size.</span><span class=cF0>
<a name="l261"></a> </span><span class=cF2>//The neg size is offset to start of </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3503"><span class=cF4>CMemUsed</span></a><span class=cF2> struct.</span><span class=cF0>
<a name="l262"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l263"></a>
<a name="l264"></a>@@20: </span><span class=cF1>PUSHFD</span><span class=cF0>
<a name="l265"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l266"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.hc[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l267"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.hc_signature[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HEAP_CTRL_SIGNATURE_VAL</span><span class=cF0>
<a name="l268"></a> </span><span class=cF1>JE</span><span class=cF0> @@25
<a name="l269"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l270"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l271"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>SysBadFree</span><span class=cF0>
<a name="l272"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> </span><span class=cFD>_SYS_HLT</span><span class=cF0>
<a name="l273"></a>
<a name="l274"></a>@@25: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l275"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.used_u8s[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l276"></a> </span><span class=cF1>CLI</span><span class=cF0>
<a name="l277"></a>@@30: </span><span class=cF1>LOCK</span><span class=cF0>
<a name="l278"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.locked_flags[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HClf_LOCKED</span><span class=cF0>
<a name="l279"></a> </span><span class=cF1>PAUSE</span><span class=cF0>
<a name="l280"></a> </span><span class=cF1>JC</span><span class=cF0> @@30
<a name="l281"></a>#</span><span class=cF1>if</span><span class=cF0> </span><span class=cF3>_CONFIG_HEAP_DEBUG</span><span class=cF0>
<a name="l282"></a></span><span class=cF2>//QueueRemove</span><span class=cF0>
<a name="l283"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l284"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.last[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l285"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.last[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l286"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RDI</span><span class=cF0>], </span><span class=cFC>RDX</span><span class=cF0>
<a name="l287"></a>
<a name="l288"></a></span><span class=cF2>//Caller1/Caller2</span><span class=cF0>
<a name="l289"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFD>MEM_HEAP_LIMIT</span><span class=cF0>]
<a name="l290"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RIP</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l291"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l292"></a> </span><span class=cF1>JB</span><span class=cF0> @@35
<a name="l293"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l294"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.caller1[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l295"></a> </span><span class=cF1>JMP</span><span class=cF0> @@45
<a name="l296"></a>@@35: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.caller1[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l297"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RBP</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l298"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l299"></a> </span><span class=cF1>JB</span><span class=cF0> @@40
<a name="l300"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l301"></a> </span><span class=cF1>JMP</span><span class=cF0> @@45
<a name="l302"></a>@@40: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_RIP</span><span class=cF0>[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l303"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDX</span><span class=cF0>
<a name="l304"></a> </span><span class=cF1>JB</span><span class=cF0> @@45
<a name="l305"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l306"></a>@@45: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.caller2[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l307"></a>
<a name="l308"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.hc[</span><span class=cFC>RSI</span><span class=cF0>]
<a name="l309"></a>#</span><span class=cF1>endif</span><span class=cF0>
<a name="l310"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>MEM_HEAP_HASH_SIZE</span><span class=cF0>
<a name="l311"></a> </span><span class=cF1>JAE</span><span class=cF0> @@50
<a name="l312"></a>
<a name="l313"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.size == </span><span class=cF9>CMemUsed</span><span class=cF0>.size
<a name="l314"></a></span><span class=cF2>//</span><span class=cF0> </span><span class=cF2>MOV </span><span class=cF0> </span><span class=cF2>U64 CMemUnused.size[RSI], RAX</span><span class=cF0>
<a name="l315"></a>
<a name="l316"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.heap_hash[</span><span class=cFC>RAX</span><span class=cF0> + </span><span class=cFC>RDX</span><span class=cF0>]
<a name="l317"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUnused</span><span class=cF0>.next[</span><span class=cFC>RSI</span><span class=cF0>], </span><span class=cFC>RBX</span><span class=cF0>
<a name="l318"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.heap_hash[</span><span class=cFC>RAX</span><span class=cF0> + </span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cFC>RSI</span><span class=cF0>
<a name="l319"></a> </span><span class=cF1>JMP</span><span class=cF0> @@55
<a name="l320"></a>
<a name="l321"></a>@@50: </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CMemBlk</span><span class=cF0>)
<a name="l322"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l323"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l324"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l325"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>MemPagTaskFree</span><span class=cF0>
<a name="l326"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDX</span><span class=cF0>
<a name="l327"></a>
<a name="l328"></a>@@55: </span><span class=cF1>LOCK</span><span class=cF0>
<a name="l329"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0>.locked_flags[</span><span class=cFC>RDX</span><span class=cF0>], </span><span class=cF3>HClf_LOCKED</span><span class=cF0>
<a name="l330"></a> </span><span class=cF1>POPFD</span><span class=cF0>
<a name="l331"></a>FREE_DONE:
<a name="l332"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l333"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l334"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l335"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l336"></a>
<a name="l337"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l338"></a></span><span class=cFD>_MSIZE</span><span class=cF0>::
<a name="l339"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l340"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>, </span><span class=cFC>RSP</span><span class=cF0>
<a name="l341"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l342"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l343"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l344"></a> </span><span class=cF1>JZ</span><span class=cF0> @@10
<a name="l345"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l346"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l347"></a> </span><span class=cF1>JGE</span><span class=cF0> @@05 </span><span class=cF2>//Aligned alloced chunks have neg size</span><span class=cF0>
<a name="l348"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l349"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l350"></a>@@05: </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>
<a name="l351"></a>@@10: </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l352"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l353"></a>
<a name="l354"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l355"></a></span><span class=cFD>_MSIZE2</span><span class=cF0>::
<a name="l356"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l357"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>, </span><span class=cFC>RSP</span><span class=cF0>
<a name="l358"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l359"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l360"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l361"></a> </span><span class=cF1>JZ</span><span class=cF0> @@10
<a name="l362"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size-</span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l363"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l364"></a> </span><span class=cF1>JGE</span><span class=cF0> @@05 </span><span class=cF2>//Aligned alloced chunks have neg size</span><span class=cF0>
<a name="l365"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l366"></a>@@05: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l367"></a>@@10: </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l368"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l369"></a>
<a name="l370"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l371"></a></span><span class=cFD>_MHEAP_CTRL</span><span class=cF0>::
<a name="l372"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l373"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>, </span><span class=cFC>RSP</span><span class=cF0>
<a name="l374"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l375"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l376"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RBX</span><span class=cF0>
<a name="l377"></a> </span><span class=cF1>JZ</span><span class=cF0> @@10
<a name="l378"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.size-</span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l379"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l380"></a> </span><span class=cF1>JGE</span><span class=cF0> @@05 </span><span class=cF2>//Aligned alloced chunks have neg size</span><span class=cF0>
<a name="l381"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>RBX</span><span class=cF0>, </span><span class=cFC>RAX</span><span class=cF0>
<a name="l382"></a>@@05: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CMemUsed</span><span class=cF0>.hc - </span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>[</span><span class=cFC>RBX</span><span class=cF0>]
<a name="l383"></a>@@10: </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l384"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l385"></a>}
<a name="l386"></a>
<a name="l387"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_FREE</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>Free</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *addr); </span><span class=cF2>//Free </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/Memory/MAllocFree.CC.html#l391"><span class=cF4>MAlloc</span></a><span class=cF2>()ed memory chunk.</span><span class=cF0>
<a name="l388"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_MSIZE</span><span class=cF0> </span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>MSize</span><span class=cF0>( </span><span class=cF1>U8</span><span class=cF0> *src); </span><span class=cF2>//Size of heap object.</span><span class=cF0>
<a name="l389"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_MSIZE2</span><span class=cF0> </span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>MSize2</span><span class=cF0>( </span><span class=cF1>U8</span><span class=cF0> *src); </span><span class=cF2>//Internal size of heap object.</span><span class=cF0>
<a name="l390"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_MHEAP_CTRL</span><span class=cF0> </span><span class=cF9>CHeapCtrl</span><span class=cF0> *</span><span class=cF5>MHeapCtrl</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *src); </span><span class=cF2>//</span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3567"><span class=cF4>CHeapCtrl</span></a><span class=cF2> of object.</span><span class=cF0>
<a name="l391"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_MALLOC</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>MAlloc</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>); </span><span class=cF2>//Alloc memory chunk.</span><span class=cF0>
<a name="l392"></a></span><span class=cF2>//Accepts a </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3984"><span class=cF4>CTask</span></a><span class=cF2> or </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3567"><span class=cF4>CHeapCtrl</span></a><span class=cF2>. NULL allocs off current task's heap.</span><span class=cF0>
<a name="l393"></a>
<a name="l394"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>SysMAlloc</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size)
<a name="l395"></a>{</span><span class=cF2>//Alloc memory in System task's heap.</span><span class=cF0>
<a name="l396"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>MAlloc</span><span class=cF0>(size, </span><span class=cFB>sys_task</span><span class=cF0>);
<a name="l397"></a>}
<a name="l398"></a>
<a name="l399"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>CAlloc</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>)
<a name="l400"></a>{</span><span class=cF2>//Accepts a </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3984"><span class=cF4>CTask</span></a><span class=cF2> or </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3567"><span class=cF4>CHeapCtrl</span></a><span class=cF2>. NULL allocs off current task's heap.</span><span class=cF0>
<a name="l401"></a> </span><span class=cF1>U8</span><span class=cF0> *res = </span><span class=cF5>MAlloc</span><span class=cF0>(size, mem_task);
<a name="l402"></a>
<a name="l403"></a> </span><span class=cF5>MemSet</span><span class=cF0>(res, </span><span class=cFE>0</span><span class=cF0>, size);
<a name="l404"></a>
<a name="l405"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l406"></a>}
<a name="l407"></a>
<a name="l408"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>SysCAlloc</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size)
<a name="l409"></a>{</span><span class=cF2>//Alloc and set to zero memory in System task's heap.</span><span class=cF0>
<a name="l410"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>CAlloc</span><span class=cF0>(size, </span><span class=cFB>sys_task</span><span class=cF0>);
<a name="l411"></a>}
<a name="l412"></a>
<a name="l413"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>MAllocIdent</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *src, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>)
<a name="l414"></a>{</span><span class=cF2>//Accepts a </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3984"><span class=cF4>CTask</span></a><span class=cF2> or </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3567"><span class=cF4>CHeapCtrl</span></a><span class=cF2>. NULL allocs off current task's heap.</span><span class=cF0>
<a name="l415"></a> </span><span class=cF1>U8</span><span class=cF0> *res;
<a name="l416"></a> </span><span class=cF9>I64</span><span class=cF0> size;
<a name="l417"></a>
<a name="l418"></a> </span><span class=cF1>if</span><span class=cF0> (!src)
<a name="l419"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF3>NULL</span><span class=cF0>;
<a name="l420"></a> size = </span><span class=cF5>MSize</span><span class=cF0>(src);
<a name="l421"></a> res = </span><span class=cF5>MAlloc</span><span class=cF0>(size, mem_task);
<a name="l422"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(res, src, size);
<a name="l423"></a>
<a name="l424"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l425"></a>}
<a name="l426"></a>
<a name="l427"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>SysMAllocIdent</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *src)
<a name="l428"></a>{</span><span class=cF2>//Alloc in System task's heap, ident copy of heap node.</span><span class=cF0>
<a name="l429"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>MAllocIdent</span><span class=cF0>(src, </span><span class=cFB>sys_task</span><span class=cF0>);
<a name="l430"></a>}
<a name="l431"></a>
<a name="l432"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>MAllocAligned</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size, </span><span class=cF9>I64</span><span class=cF0> alignment, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cF9>I64</span><span class=cF0> misalignment=</span><span class=cFE>0</span><span class=cF0>)
<a name="l433"></a>{</span><span class=cF2>//Only powers of two alignment. This is awful.</span><span class=cF0>
<a name="l434"></a> </span><span class=cF9>I64</span><span class=cF0> mask = alignment - </span><span class=cFE>1</span><span class=cF0>;
<a name="l435"></a> </span><span class=cF1>U8</span><span class=cF0> *ptr = </span><span class=cF5>MAlloc</span><span class=cF0>(size + mask + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>I64</span><span class=cF7>)</span><span class=cF0> + misalignment, mem_task),
<a name="l436"></a> *res = (ptr + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>I64</span><span class=cF7>)</span><span class=cF0> + mask) &amp; ~mask + misalignment;
<a name="l437"></a>
<a name="l438"></a> res(</span><span class=cF9>I64</span><span class=cF0> *)[-</span><span class=cFE>1</span><span class=cF0>] = ptr - res;
<a name="l439"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF1>offset</span><span class=cF0>(</span><span class=cF9>CMemUsed</span><span class=cF0>.size) == </span><span class=cF1>offset</span><span class=cF0>(</span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>) - </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0>)
<a name="l440"></a>
<a name="l441"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l442"></a>}
<a name="l443"></a>
<a name="l444"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>CAllocAligned</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0> size, </span><span class=cF9>I64</span><span class=cF0> alignment, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cF9>I64</span><span class=cF0> misalignment=</span><span class=cFE>0</span><span class=cF0>)
<a name="l445"></a>{</span><span class=cF2>//Only powers of two alignment. This is awful.</span><span class=cF0>
<a name="l446"></a> </span><span class=cF9>I64</span><span class=cF0> mask = alignment-</span><span class=cFE>1</span><span class=cF0>;
<a name="l447"></a> </span><span class=cF1>U8</span><span class=cF0> *ptr = </span><span class=cF5>MAlloc</span><span class=cF0>(size + mask + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>I64</span><span class=cF7>)</span><span class=cF0> + misalignment, mem_task),
<a name="l448"></a> *res = (ptr + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>I64</span><span class=cF7>)</span><span class=cF0> + mask) &amp; ~mask + misalignment;
<a name="l449"></a>
<a name="l450"></a> res(</span><span class=cF9>I64</span><span class=cF0> *)[-</span><span class=cFE>1</span><span class=cF0>] = ptr - res;
<a name="l451"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF1>offset</span><span class=cF0>(</span><span class=cF9>CMemUsed</span><span class=cF0>.size) == </span><span class=cF1>offset</span><span class=cF0>(</span><span class=cF9>CMemUsed</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF0>) - </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>I64</span><span class=cF0>)
<a name="l452"></a> </span><span class=cF5>MemSet</span><span class=cF0>(res, </span><span class=cFE>0</span><span class=cF0>, size);
<a name="l453"></a>
<a name="l454"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l455"></a>}
<a name="l456"></a>
<a name="l457"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>ReAlloc</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *ptr, </span><span class=cF9>U64</span><span class=cF0> new_size, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>)
<a name="l458"></a>{</span><span class=cF2>//Resize previously MAlloc'ed chunk. If new_size is zero then act as Free.</span><span class=cF0>
<a name="l459"></a></span><span class=cF2>//If pointer is NULL then act as MAlloc. if both are NULL/0 does nothing (Free(NULL))</span><span class=cF0>
<a name="l460"></a></span><span class=cF2>//Useless for changing chunk sizes smaller than 8 bytes because MAlloc allocs 8 bytes at a time.</span><span class=cF0>
<a name="l461"></a> </span><span class=cF1>U8</span><span class=cF0> *res;
<a name="l462"></a>
<a name="l463"></a> </span><span class=cF1>if</span><span class=cF0> (!new_size)
<a name="l464"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l465"></a> </span><span class=cF5>Free</span><span class=cF0>(ptr); </span><span class=cF2>//we can free NULL</span><span class=cF0>
<a name="l466"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF3>NULL</span><span class=cF0>;
<a name="l467"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l468"></a>
<a name="l469"></a> res = </span><span class=cF5>MAlloc</span><span class=cF0>(new_size, mem_task);
<a name="l470"></a> </span><span class=cF1>if</span><span class=cF0> (!ptr)
<a name="l471"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l472"></a>
<a name="l473"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(res, ptr, </span><span class=cF5>MinI64</span><span class=cF7>(</span><span class=cF5>MSize</span><span class=cF0>(ptr), new_size</span><span class=cF7>)</span><span class=cF0>);
<a name="l474"></a> </span><span class=cF5>Free</span><span class=cF0>(ptr);
<a name="l475"></a>
<a name="l476"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l477"></a>}
<a name="l478"></a>
<a name="l479"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>SysReAlloc</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *ptr, </span><span class=cF9>I64</span><span class=cF0> new_size)
<a name="l480"></a>{</span><span class=cF2>//Realloc in System task's heap.</span><span class=cF0>
<a name="l481"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>ReAlloc</span><span class=cF0>(ptr, new_size, </span><span class=cFB>sys_task</span><span class=cF0>);
<a name="l482"></a>}
<a name="l483"></a>
<a name="l484"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>StrNew</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>CTask</span><span class=cF0> *mem_task=</span><span class=cF3>NULL</span><span class=cF0>)
<a name="l485"></a>{</span><span class=cF2>//Accepts a </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3984"><span class=cF4>CTask</span></a><span class=cF2> or </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3567"><span class=cF4>CHeapCtrl</span></a><span class=cF2>. NULL allocs off current task's heap.</span><span class=cF0>
<a name="l486"></a> </span><span class=cF1>U8</span><span class=cF0> *res;
<a name="l487"></a> </span><span class=cF9>I64</span><span class=cF0> size;
<a name="l488"></a>
<a name="l489"></a> </span><span class=cF1>if</span><span class=cF0> (buf)
<a name="l490"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l491"></a> size = </span><span class=cF5>StrLen</span><span class=cF0>(buf) + </span><span class=cFE>1</span><span class=cF0>;
<a name="l492"></a> res = </span><span class=cF5>MAlloc</span><span class=cF0>(size, mem_task);
<a name="l493"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(res, buf, size);
<a name="l494"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l495"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l496"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l497"></a> res = </span><span class=cF5>MAlloc</span><span class=cF0>(</span><span class=cFE>1</span><span class=cF0>, mem_task);
<a name="l498"></a> *res = </span><span class=cFE>0</span><span class=cF0>;
<a name="l499"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l500"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l501"></a>}
<a name="l502"></a>
<a name="l503"></a></span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>SysStrNew</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *buf)
<a name="l504"></a>{</span><span class=cF2>//Alloc copy of string in System task's heap.</span><span class=cF0>
<a name="l505"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>StrNew</span><span class=cF0>(buf, </span><span class=cFB>sys_task</span><span class=cF0>);
<a name="l506"></a>}
</span></pre></body>
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