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TomAwezome 1b75d91002 Fix Mount AHCI Port selection. 
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -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><a href="https://zeal-operating-system.github.io/ZealOS/Doc/MemoryOverview.DD.html#l1"><span class=cF4>::/Doc/MemoryOverview.DD</span></a><span class=cF0>
<a name="l3"></a>
<a name="l4"></a></span><span class=cF1>USE32</span><span class=cF0>
<a name="l5"></a></span><span class=cFD>SYS_INIT_PAGE_TABLES</span><span class=cF0>::
<a name="l6"></a></span><span class=cF2>//Check 1Gig page capability and set page size.</span><span class=cF0>
<a name="l7"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x80000001</span><span class=cF0>
<a name="l8"></a> </span><span class=cF1>CPUID</span><span class=cF0>
<a name="l9"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>1</span><span class=cF0> &lt;&lt; </span><span class=cFE>21</span><span class=cF0>
<a name="l10"></a> </span><span class=cF1>BT</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>26</span><span class=cF0>
<a name="l11"></a> </span><span class=cF1>JNC</span><span class=cF0> @@05
<a name="l12"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>1</span><span class=cF0> &lt;&lt; </span><span class=cFE>30</span><span class=cF0>
<a name="l13"></a>@@05: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PAGE_SIZE</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l14"></a>
<a name="l15"></a></span><span class=cF2>//Set mapped space limit</span><span class=cF0>
<a name="l16"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, [</span><span class=cFD>MEM_PHYSICAL_SPACE</span><span class=cF0>]
<a name="l17"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, [</span><span class=cFD>MEM_PHYSICAL_SPACE</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>]
<a name="l18"></a> </span><span class=cF1>BT</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PAGE_SIZE</span><span class=cF0>], </span><span class=cFE>30</span><span class=cF0> </span><span class=cF2>//Round-up to 1Gig boundary?</span><span class=cF0>
<a name="l19"></a> </span><span class=cF1>JNC</span><span class=cF0> @@10
<a name="l20"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x3FFFFFFF</span><span class=cF0>
<a name="l21"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l22"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, ~</span><span class=cFE>0x3FFFFFFF</span><span class=cF0>
<a name="l23"></a>@@10: </span><span class=cF1>INC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0> </span><span class=cF2>//Need 4Gig extra for uncached alias up at top of space.</span><span class=cF0>
<a name="l24"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_MAPPED_SPACE</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l25"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_MAPPED_SPACE</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l26"></a>
<a name="l27"></a></span><span class=cF2>//How many 2Meg pages?</span><span class=cF0>
<a name="l28"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>CL</span><span class=cF0>, </span><span class=cFE>21</span><span class=cF0>
<a name="l29"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FFFFF</span><span class=cF0>
<a name="l30"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l31"></a> </span><span class=cF1>SHRD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l32"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>CL</span><span class=cF0>
<a name="l33"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_2MEG_NUM</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l34"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_2MEG_NUM</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l35"></a>
<a name="l36"></a></span><span class=cF2>//How many 1Gig pages?</span><span class=cF0>
<a name="l37"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>CL</span><span class=cF0>, </span><span class=cFE>9</span><span class=cF0>
<a name="l38"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l39"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l40"></a> </span><span class=cF1>SHRD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l41"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>CL</span><span class=cF0>
<a name="l42"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_1GIG_NUM</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l43"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_1GIG_NUM</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l44"></a>
<a name="l45"></a></span><span class=cF2>//How many 512Gig pages?</span><span class=cF0>
<a name="l46"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>CL</span><span class=cF0>, </span><span class=cFE>9</span><span class=cF0>
<a name="l47"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l48"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l49"></a> </span><span class=cF1>SHRD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l50"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>CL</span><span class=cF0>
<a name="l51"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_512GIG_NUM</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l52"></a> </span><span class=cF1>MOV</span><span class=cF0> [</span><span class=cFD>MEM_512GIG_NUM</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l53"></a>
<a name="l54"></a></span><span class=cF2>//Set </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l4125"><span class=cF4>CSysFixedArea</span></a><span class=cF2> to zero</span><span class=cF0>
<a name="l55"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0>
<a name="l56"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l57"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CSysFixedArea</span><span class=cF0>) / </span><span class=cFE>4</span><span class=cF0>
<a name="l58"></a> </span><span class=cF1>REP_STOSD</span><span class=cF0>
<a name="l59"></a>
<a name="l60"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PML2</span><span class=cF0>], </span><span class=cFC>EDI</span><span class=cF0>
<a name="l61"></a></span><span class=cF2>//Check for 1Gig page capability.</span><span class=cF0>
<a name="l62"></a> </span><span class=cF1>BT</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PAGE_SIZE</span><span class=cF0>], </span><span class=cFE>30</span><span class=cF0>
<a name="l63"></a> </span><span class=cF1>JC</span><span class=cF0> @@15
<a name="l64"></a></span><span class=cF2>//Find PML2 Size</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=cFD>MEM_2MEG_NUM</span><span class=cF0>]
<a name="l66"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l67"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, ~</span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l68"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>3</span><span class=cF0>
<a name="l69"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l70"></a>
<a name="l71"></a></span><span class=cF2>//Find PML3 Size</span><span class=cF0>
<a name="l72"></a>@@15: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PML3</span><span class=cF0>], </span><span class=cFC>EDI</span><span class=cF0>
<a name="l73"></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=cFD>MEM_1GIG_NUM</span><span class=cF0>]
<a name="l74"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l75"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, ~</span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l76"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>3</span><span class=cF0>
<a name="l77"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l78"></a>
<a name="l79"></a></span><span class=cF2>//Find PML4 Size</span><span class=cF0>
<a name="l80"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PML4</span><span class=cF0>], </span><span class=cFC>EDI</span><span class=cF0>
<a name="l81"></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=cFD>MEM_512GIG_NUM</span><span class=cF0>]
<a name="l82"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l83"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, ~</span><span class=cFE>0x1FF</span><span class=cF0>
<a name="l84"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>3</span><span class=cF0>
<a name="l85"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDI</span><span class=cF0>
<a name="l86"></a>
<a name="l87"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_HEAP_BASE</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l88"></a>
<a name="l89"></a></span><span class=cF2>//Set page tables to zero</span><span class=cF0>
<a name="l90"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PML2</span><span class=cF0>]
<a name="l91"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDI</span><span class=cF0>
<a name="l92"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l93"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cFE>2</span><span class=cF0>
<a name="l94"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l95"></a> </span><span class=cF1>REP_STOSD</span><span class=cF0>
<a name="l96"></a>
<a name="l97"></a></span><span class=cF2>//Check for 1Gig page capability.</span><span class=cF0>
<a name="l98"></a> </span><span class=cF1>BT</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_PAGE_SIZE</span><span class=cF0>], </span><span class=cFE>30</span><span class=cF0>
<a name="l99"></a> </span><span class=cF1>JC</span><span class=cF0> @@30
<a name="l100"></a>
<a name="l101"></a></span><span class=cF2>//PML2: Use 2Meg Pages</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=cFE>0x87</span><span class=cF0> </span><span class=cF2>//bit 7 is page size (2Meg)</span><span class=cF0>
<a name="l103"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l104"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, [</span><span class=cFD>MEM_PML2</span><span class=cF0>]
<a name="l105"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, [</span><span class=cFD>MEM_2MEG_NUM</span><span class=cF0>]
<a name="l106"></a>@@20: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l107"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l108"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l109"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l110"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x200000</span><span class=cF0>
<a name="l111"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l112"></a> </span><span class=cF1>LOOP</span><span class=cF0> @@20
<a name="l113"></a></span><span class=cF2>//PML3: Use 2Meg Pages</span><span class=cF0>
<a name="l114"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, [</span><span class=cFD>MEM_PML2</span><span class=cF0>]
<a name="l115"></a> </span><span class=cF1>OR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>7</span><span class=cF0>
<a name="l116"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l117"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, [</span><span class=cFD>MEM_PML3</span><span class=cF0>]
<a name="l118"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, [</span><span class=cFD>MEM_1GIG_NUM</span><span class=cF0>]
<a name="l119"></a>@@25: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l120"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l121"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l122"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l123"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1000</span><span class=cF0>
<a name="l124"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l125"></a> </span><span class=cF1>LOOP</span><span class=cF0> @@25
<a name="l126"></a> </span><span class=cF1>JMP</span><span class=cF0> @@40
<a name="l127"></a>
<a name="l128"></a></span><span class=cF2>//PML3: Use 1Gig Pages</span><span class=cF0>
<a name="l129"></a>@@30: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x87</span><span class=cF0> </span><span class=cF2>//bit 7 is page size (1Gig)</span><span class=cF0>
<a name="l130"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l131"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, [</span><span class=cFD>MEM_PML3</span><span class=cF0>]
<a name="l132"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, [</span><span class=cFD>MEM_1GIG_NUM</span><span class=cF0>]
<a name="l133"></a>@@35: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l134"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l135"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l136"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l137"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x40000000</span><span class=cF0>
<a name="l138"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l139"></a> </span><span class=cF1>LOOP</span><span class=cF0> @@35
<a name="l140"></a>
<a name="l141"></a></span><span class=cF2>//PML4</span><span class=cF0>
<a name="l142"></a>@@40: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, [</span><span class=cFD>MEM_PML3</span><span class=cF0>]
<a name="l143"></a> </span><span class=cF1>OR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>7</span><span class=cF0>
<a name="l144"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFC>EDX</span><span class=cF0>
<a name="l145"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, [</span><span class=cFD>MEM_PML4</span><span class=cF0>]
<a name="l146"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, [</span><span class=cFD>MEM_512GIG_NUM</span><span class=cF0>]
<a name="l147"></a>@@45: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l148"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l149"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EDX</span><span class=cF0>
<a name="l150"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l151"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x1000</span><span class=cF0>
<a name="l152"></a> </span><span class=cF1>ADC</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>
<a name="l153"></a> </span><span class=cF1>LOOP</span><span class=cF0> @@45
<a name="l154"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l155"></a>
<a name="l156"></a></span><span class=cFD>SYS_INIT_16MEG_SYS_CODE_BP</span><span class=cF0>::
<a name="l157"></a></span><span class=cF2>// Init sys_code_bp to BIOS E801 lowest 16Meg val.</span><span class=cF0>
<a name="l158"></a></span><span class=cF2>// </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/Memory/BlkPool.CC.html#l31"><span class=cF4>BlkPoolsInit</span></a><span class=cF2>() adds the rest.</span><span class=cF0>
<a name="l159"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>SYS_CODE_BP</span><span class=cF0>], </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.</span><span class=cFB>sys_code_bp</span><span class=cF0>
<a name="l160"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>SYS_CODE_BP</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l161"></a>
<a name="l162"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>SYS_DATA_BP</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l163"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>SYS_DATA_BP</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l164"></a>
<a name="l165"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l166"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cF9>U16</span><span class=cF0> [</span><span class=cFD>MEM_E801</span><span class=cF0>] </span><span class=cF2>//1 Kb blks between 1M and 16M</span><span class=cF0>
<a name="l167"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>10</span><span class=cF0>
<a name="l168"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>0x100000</span><span class=cF0>
<a name="l169"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>MEM_HEAP_BASE</span><span class=cF0>]
<a name="l170"></a> </span><span class=cF1>SUB</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EDI</span><span class=cF0>
<a name="l171"></a>
<a name="l172"></a></span><span class=cF2>//EDI=BASE EAX=SIZE</span><span class=cF0>
<a name="l173"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [</span><span class=cFD>SYS_MEM_INIT_FLAG</span><span class=cF0>], </span><span class=cFE>1</span><span class=cF0>
<a name="l174"></a> </span><span class=cF1>JZ</span><span class=cF0> @@05
<a name="l175"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>
<a name="l176"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>
<a name="l177"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l178"></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_MEM_INIT_VAL</span><span class=cF0>]
<a name="l179"></a> </span><span class=cF1>REP_STOSB</span><span class=cF0>
<a name="l180"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>EDI</span><span class=cF0>
<a name="l181"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>
<a name="l182"></a>
<a name="l183"></a>@@05: </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l184"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ESI</span><span class=cF0>, </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.</span><span class=cFB>sys_code_bp</span><span class=cF0>
<a name="l185"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EBX</span><span class=cF0>, </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CBlkPool</span><span class=cF0>.mem_free_list[</span><span class=cFC>ESI</span><span class=cF0>]
<a name="l186"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.next [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFC>EBX</span><span class=cF0>
<a name="l187"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.next + </span><span class=cFE>4</span><span class=cF0> [</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l188"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CBlkPool</span><span class=cF0>.mem_free_list [</span><span class=cFC>ESI</span><span class=cF0>], </span><span class=cFC>EDI</span><span class=cF0>
<a name="l189"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CBlkPool</span><span class=cF0>.mem_free_list + </span><span class=cFE>4</span><span class=cF0> [</span><span class=cFC>ESI</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l190"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CMemBlk</span><span class=cF0>.mb_signature[</span><span class=cFC>EDI</span><span class=cF0>], </span><span class=cF3>MBS_UNUSED_SIGNATURE_VAL</span><span class=cF0>
<a name="l191"></a> </span><span class=cF1>MOV</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>EDI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l192"></a> </span><span class=cF1>SHL</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF3>MEM_PAG_BITS</span><span class=cF0>
<a name="l193"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CBlkPool</span><span class=cF0>.alloced_u8s[</span><span class=cFC>ESI</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l194"></a>
<a name="l195"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [</span><span class=cFD>SYS_RUN_LEVEL</span><span class=cF0>], </span><span class=cF3>RLf_16MEG_SYS_CODE_BP</span><span class=cF0>
<a name="l196"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l197"></a>}
<a name="l198"></a>
<a name="l199"></a></span><span class=cF9>I64</span><span class=cF0> *</span><span class=cF5>MemPageTable</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *a)
<a name="l200"></a>{</span><span class=cF2>//Point to page table entry for addr.</span><span class=cF0>
<a name="l201"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>Bt</span><span class=cF7>(</span><span class=cF0>&amp;</span><span class=cFB>mem_page_size</span><span class=cF0>, </span><span class=cFE>30</span><span class=cF7>)</span><span class=cF0>)
<a name="l202"></a> </span><span class=cF1>return</span><span class=cF0> *</span><span class=cFD>MEM_PML3</span><span class=cF0>(</span><span class=cF9>U64</span><span class=cF0> *) + a &gt;&gt; </span><span class=cFE>30</span><span class=cF0> * </span><span class=cFE>8</span><span class=cF0>;
<a name="l203"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l204"></a> </span><span class=cF1>return</span><span class=cF0> *</span><span class=cFD>MEM_PML2</span><span class=cF0>(</span><span class=cF9>U64</span><span class=cF0> *) + a &gt;&gt; </span><span class=cFE>21</span><span class=cF0> * </span><span class=cFE>8</span><span class=cF0>;
<a name="l205"></a>}
</span></pre></body>
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