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ZealOS/docs/Kernel/KStart64.CC.html
TomAwezome dbf8647d59 Fixed non-writable drive throw on F5 and Ctrl-S. 
Added top & right borders to RawDr.
Improved spacing in some debug and compiler reporting.
Fixed RawPutChar and EdLite tab width.
Fixed Ui missing '0x' prefix syntax highlighter bug.
Added 32BitPaint demo.
2021-07-14 18:38:02 -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=cF1>USE64</span><span class=cF0>
<a name="l3"></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_64BIT</span><span class=cF0>
<a name="l4"></a>
<a name="l5"></a></span><span class=cF2>//Set required bits for SSE instruction execution</span><span class=cF0>
<a name="l6"></a> </span><span class=cF1>MOV_RAX_CR4</span><span class=cF0>
<a name="l7"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>CR4f_OSFXSR</span><span class=cF0>
<a name="l8"></a> </span><span class=cF1>MOV_CR4_RAX</span><span class=cF0>
<a name="l9"></a>
<a name="l10"></a> </span><span class=cF1>MOV_EAX_CR0</span><span class=cF0>
<a name="l11"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>CR0f_EM</span><span class=cF0>
<a name="l12"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>CR0f_MP</span><span class=cF0>
<a name="l13"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>CR0f_NE</span><span class=cF0>
<a name="l14"></a> </span><span class=cF1>MOV_CR0_EAX</span><span class=cF0>
<a name="l15"></a> </span><span class=cF1>FNINIT</span><span class=cF0>
<a name="l16"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.init_fpu_mmx
<a name="l17"></a> </span><span class=cF1>FXSAVE</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RAX</span><span class=cF0>]
<a name="l18"></a>
<a name="l19"></a></span><span class=cF2>//Init CPU0 Struct</span><span class=cF0>
<a name="l20"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.system
<a name="l21"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.boot_cpu
<a name="l22"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>
<a name="l23"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>CPUStructInit</span><span class=cF0>
<a name="l24"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFD>SET_GS_BASE</span><span class=cF0>
<a name="l25"></a>
<a name="l26"></a></span><span class=cF2>//Init System HeapCtrl</span><span class=cF0>
<a name="l27"></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=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.system_hc
<a name="l28"></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=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="l29"></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>.bp[</span><span class=cFC>RDI</span><span class=cF0>],</span><span class=cFC>RAX</span><span class=cF0>
<a name="l30"></a> </span><span class=cF1>MOV</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>RDI</span><span class=cF0>], </span><span class=cF3>HEAP_CTRL_SIGNATURE_VAL</span><span class=cF0>
<a name="l31"></a>
<a name="l32"></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>CHeapCtrl</span><span class=cF0>.next_um - </span><span class=cF9>CMemUsed</span><span class=cF0>.next[</span><span class=cFC>RDI</span><span class=cF0>]
<a name="l33"></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>.next_um[</span><span class=cFC>RDI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l34"></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>RDI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l35"></a>
<a name="l36"></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=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.system
<a name="l37"></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>.mem_task[</span><span class=cFC>RDI</span><span class=cF0>], </span><span class=cFC>RAX</span><span class=cF0>
<a name="l38"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CTask</span><span class=cF0>.code_heap[</span><span class=cFC>RAX</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l39"></a> </span><span class=cF1>MOV</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>RAX</span><span class=cF0>], </span><span class=cFC>RDI</span><span class=cF0>
<a name="l40"></a> </span><span class=cF1>MOV</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>RAX</span><span class=cF0>], </span><span class=cF3>TASK_SIGNATURE_VAL</span><span class=cF0>
<a name="l41"></a>
<a name="l42"></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_SYSTEM_HEAP_CTRL</span><span class=cF0>
<a name="l43"></a>
<a name="l44"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF3>MEM_SYSTEM_STACK</span><span class=cF0>
<a name="l45"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF3>SYS_FIXED_AREA</span><span class=cF0> + </span><span class=cF9>CSysFixedArea</span><span class=cF0>.system
<a name="l46"></a> </span><span class=cF1>CALL</span><span class=cF0> &amp;</span><span class=cFD>TaskInit</span><span class=cF0>
<a name="l47"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFD>SET_FS_BASE</span><span class=cF0>
<a name="l48"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RSP</span><span class=cF0>, </span><span class=cF9>U64</span><span class=cF0> </span><span class=cF9>CTask</span><span class=cF0>.rsp[</span><span class=cFC>RAX</span><span class=cF0>]
<a name="l49"></a>
<a name="l50"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cF9>I32</span><span class=cF0> &amp;</span><span class=cFD>KMain</span><span class=cF0>
<a name="l51"></a>
<a name="l52"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l53"></a></span><span class=cF1>USE32</span><span class=cF0>
<a name="l54"></a></span><span class=cFD>SYS_ENTER_LONG_MODE</span><span class=cF0>:: </span><span class=cF2>//Switch to long 64-bit mode</span><span class=cF0>
<a name="l55"></a> </span><span class=cF1>MOV_EAX_CR4</span><span class=cF0>
<a name="l56"></a> </span><span class=cF1>OR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF3>CR4F_PAE</span><span class=cF0> | </span><span class=cF3>CR4F_PGE</span><span class=cF0>
<a name="l57"></a> </span><span class=cF1>MOV_CR4_EAX</span><span class=cF0>
<a name="l58"></a>
<a name="l59"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, [</span><span class=cFD>MEM_PML4</span><span class=cF0>]
<a name="l60"></a> </span><span class=cF1>MOV_CR3_EAX</span><span class=cF0>
<a name="l61"></a>
<a name="l62"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cF3>IA32_EFER</span><span class=cF0>
<a name="l63"></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="l64"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF3>IA32F_LME</span><span class=cF0>
<a name="l65"></a> </span><span class=cF1>WRMSR</span><span class=cF0>
<a name="l66"></a>
<a name="l67"></a> </span><span class=cF1>MOV_EAX_CR0</span><span class=cF0>
<a name="l68"></a> </span><span class=cF1>BTS</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>31</span><span class=cF0> </span><span class=cF2>//Enable paging (required for 64-bit mode)</span><span class=cF0>
<a name="l69"></a> </span><span class=cF1>MOV_CR0_EAX</span><span class=cF0>
<a name="l70"></a>
<a name="l71"></a> </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>0xEA</span><span class=cF0>; </span><span class=cF2>//JMP CGDT.cs64:@@05</span><span class=cF0>
<a name="l72"></a> </span><span class=cF1>DU32</span><span class=cF0> @@05;
<a name="l73"></a> </span><span class=cF1>DU16</span><span class=cF0> </span><span class=cF9>CGDT</span><span class=cF0>.cs64;
<a name="l74"></a></span><span class=cF1>USE64</span><span class=cF0>
<a name="l75"></a>@@05: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cF9>CGDT</span><span class=cF0>.ds
<a name="l76"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>DS</span><span class=cF0>, </span><span class=cFC>AX</span><span class=cF0>
<a name="l77"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ES</span><span class=cF0>, </span><span class=cFC>AX</span><span class=cF0>
<a name="l78"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>SS</span><span class=cF0>, </span><span class=cFC>AX</span><span class=cF0>
<a name="l79"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>FS</span><span class=cF0>, </span><span class=cFC>AX</span><span class=cF0>
<a name="l80"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>GS</span><span class=cF0>, </span><span class=cFC>AX</span><span class=cF0>
<a name="l81"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l82"></a>
<a name="l83"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l84"></a></span><span class=cFD>SYS_RAM_REBOOT</span><span class=cF0>:: </span><span class=cF2>//This gets copied high. </span><a href="https://tomawezome.github.io/ZealOS/System/Boot/BootRAM.CC.html#l43"><span class=cF4>SYS_RAM_REBOOT</span></a><span class=cF0>
<a name="l85"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CGDT</span><span class=cF0>.ds </span><span class=cF2>//stack seg</span><span class=cF0>
<a name="l86"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF3>BOOT_RAM_LIMIT</span><span class=cF0> </span><span class=cF2>//stack</span><span class=cF0>
<a name="l87"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0> </span><span class=cF2>//flags</span><span class=cF0>
<a name="l88"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cF9>CGDT</span><span class=cF0>.cs32
<a name="l89"></a> </span><span class=cF1>LEA</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, [@@10]
<a name="l90"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l91"></a> </span><span class=cF1>IRET</span><span class=cF0>
<a name="l92"></a></span><span class=cF1>USE32</span><span class=cF0>
<a name="l93"></a>@@10: </span><span class=cF1>WBINVD</span><span class=cF0>
<a name="l94"></a>
<a name="l95"></a></span><span class=cF2>//Disable paging</span><span class=cF0>
<a name="l96"></a> </span><span class=cF1>MOV_EAX_CR0</span><span class=cF0>
<a name="l97"></a> </span><span class=cF1>BTR</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>31</span><span class=cF0>
<a name="l98"></a> </span><span class=cF1>MOV_CR0_EAX</span><span class=cF0>
<a name="l99"></a>
<a name="l100"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>, </span><span class=cF3>IA32_EFER</span><span class=cF0>
<a name="l101"></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="l102"></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="l103"></a> </span><span class=cF1>WRMSR</span><span class=cF0>
<a name="l104"></a>
<a name="l105"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EBX</span><span class=cF0>, </span><span class=cF3>BOOT_SRC_RAM</span><span class=cF0>
<a name="l106"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cF9>I32</span><span class=cF0> </span><span class=cFD>CORE0_32BIT_INIT</span><span class=cF0>
<a name="l107"></a> </span><span class=cF1>JMP</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>
<a name="l108"></a></span><span class=cFD>SYS_RAM_REBOOT_END</span><span class=cF0>::
<a name="l109"></a></span><span class=cF1>USE64</span><span class=cF0>
<a name="l110"></a>}
</span></pre></body>
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