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ZealOS/docs/System/Boot/BootMHD2.CC.html
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=cF0>#</span><span class=cF1>define</span><span class=cF0> </span><span class=cF3>MODULE_SIZE</span><span class=cF0> </span><span class=cFE>2</span><span class=cF0> * </span><span class=cF3>BLK_SIZE</span><span class=cF0>
<a name="l2"></a>#</span><span class=cF1>define</span><span class=cF0> </span><span class=cF3>BOOT_HIGH_LOC_MHD2</span><span class=cF0> (</span><span class=cF7>(</span><span class=cF3>BOOT_RAM_LIMIT</span><span class=cF0> - (</span><span class=cF3>BOOT_STACK_SIZE</span><span class=cF0> + </span><span class=cF3>MODULE_SIZE</span><span class=cF0>)</span><span class=cF7>)</span><span class=cF0> &gt;&gt; </span><span class=cFE>4</span><span class=cF0>)
<a name="l3"></a>
<a name="l4"></a></span><span class=cF5>DefinePrint</span><span class=cF0>(</span><span class=cF6>&quot;DD_BOOT_HIGH_LOC_MHD2&quot;</span><span class=cF0>, </span><span class=cF6>&quot;%08X&quot;</span><span class=cF0>, </span><span class=cF3>BOOT_HIGH_LOC_MHD2</span><span class=cF0> &lt;&lt; </span><span class=cFE>4</span><span class=cF0>);
<a name="l5"></a>
<a name="l6"></a></span><span class=cF1>asm</span><span class=cF0> {
<a name="l7"></a></span><span class=cF1>USE16</span><span class=cF0>
<a name="l8"></a></span><span class=cFD>BMHD2_START</span><span class=cF0>::
<a name="l9"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cFC>FS</span><span class=cF0>:[</span><span class=cFE>0</span><span class=cF0>], </span><span class=cF6>'B'</span><span class=cF0> + </span><span class=cFE>0x2000</span><span class=cF0> + (</span><span class=cF6>'2'</span><span class=cF0> + </span><span class=cFE>0x2000</span><span class=cF0>) &lt;&lt; </span><span class=cFE>16</span><span class=cF0>
<a name="l10"></a>
<a name="l11"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cF3>BOOT_HIGH_LOC_MHD2</span><span class=cF0>
<a name="l12"></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="l13"></a></span><span class=cF2>//This copies this bootloader's code to 0x00096A00</span><span class=cF0>
<a name="l14"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cFC>CS</span><span class=cF0>
<a name="l15"></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="l16"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [BMHD2_OLD_CS_RIP - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>EBX</span><span class=cF0>
<a name="l17"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [BMHD2_BIOS_DRIVE_NUM - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>DL</span><span class=cF0>
<a name="l18"></a>
<a name="l19"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>CX</span><span class=cF0>, </span><span class=cF3>MODULE_SIZE</span><span class=cF0>
<a name="l20"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>SI</span><span class=cF0>, </span><span class=cFC>SI</span><span class=cF0>
<a name="l21"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>DI</span><span class=cF0>, </span><span class=cFC>DI</span><span class=cF0>
<a name="l22"></a> </span><span class=cF1>REP_MOVSB</span><span class=cF0>
<a name="l23"></a>
<a name="l24"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cF3>BOOT_HIGH_LOC_MHD2</span><span class=cF0>
<a name="l25"></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="l26"></a>
<a name="l27"></a></span><span class=cF2>//The assembler doesn't support 16-bit very well.</span><span class=cF0>
<a name="l28"></a> </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>0xEA</span><span class=cF0>; </span><span class=cF2>//JMP BOOT_HIGH_LOC_MHD2:BMHD2_HISTART</span><span class=cF0>
<a name="l29"></a> </span><span class=cF1>DU16</span><span class=cF0> BMHD2_HISTART - </span><span class=cFD>BMHD2_START</span><span class=cF0>, </span><span class=cF3>BOOT_HIGH_LOC_MHD2</span><span class=cF0>;
<a name="l30"></a>
<a name="l31"></a></span><span class=cFD>BMHD2_BOOT_MESSAGE</span><span class=cF0>::
<a name="l32"></a> </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>256</span><span class=cF0> </span><span class=cF1>DUP</span><span class=cF0>(</span><span class=cFE>0</span><span class=cF0>);
<a name="l33"></a>
<a name="l34"></a>BMHD2_BIOS_DRIVE_NUM: </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l35"></a>BMHD2_PAGE: </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l36"></a></span><span class=cFD>BMHD2_BLK_ARRAY</span><span class=cF0>:: </span><span class=cF1>DU64</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0> </span><span class=cF1>DUP</span><span class=cF0>(</span><span class=cFE>0</span><span class=cF0>);
<a name="l37"></a>
<a name="l38"></a>BMHD2_DAP: </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>16</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>, </span><span class=cFE>1</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>; </span><span class=cF2>//One blk at a time</span><span class=cF0>
<a name="l39"></a>BMHD2_DAP_BUF: </span><span class=cF1>DU16</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>;
<a name="l40"></a></span><span class=cFD>BMHD2_DAP_BLK</span><span class=cF0>:: </span><span class=cF2>//64-bit</span><span class=cF0>
<a name="l41"></a>BMHD2_DAP_BLK_LO: </span><span class=cF1>DU32</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l42"></a>BMHD2_DAP_BLK_HI: </span><span class=cF1>DU32</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l43"></a>
<a name="l44"></a></span><span class=cFD>BMHD2_PUT_CHAR</span><span class=cF0>::
<a name="l45"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AH</span><span class=cF0>, </span><span class=cFE>0xE</span><span class=cF0>
<a name="l46"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>BL</span><span class=cF0>, </span><span class=cFE>7</span><span class=cF0> </span><span class=cF2>//Might be foreground color on some BIOS's</span><span class=cF0>
<a name="l47"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>BH</span><span class=cF0>, </span><span class=cF1>U8</span><span class=cF0> [BMHD2_PAGE - </span><span class=cFD>BMHD2_START</span><span class=cF0>]
<a name="l48"></a> </span><span class=cF1>INT</span><span class=cF0> </span><span class=cFE>0x10</span><span class=cF0>
<a name="l49"></a></span><span class=cFD>BMHD2_RET</span><span class=cF0>::
<a name="l50"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l51"></a></span><span class=cFD>BMHD2_PUTS</span><span class=cF0>::
<a name="l52"></a>@@1: </span><span class=cF1>LODSB</span><span class=cF0>
<a name="l53"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>AL</span><span class=cF0>, </span><span class=cFC>AL</span><span class=cF0>
<a name="l54"></a> </span><span class=cF1>JZ</span><span class=cF0> </span><span class=cFD>BMHD2_RET</span><span class=cF0>
<a name="l55"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFD>BMHD2_PUT_CHAR</span><span class=cF0>
<a name="l56"></a> </span><span class=cF1>JMP</span><span class=cF0> @@1
<a name="l57"></a>
<a name="l58"></a>BMHD2_GETCHAR:
<a name="l59"></a> </span><span class=cF1>XOR</span><span class=cF0> </span><span class=cFC>AH</span><span class=cF0>, </span><span class=cFC>AH</span><span class=cF0>
<a name="l60"></a> </span><span class=cF1>INT</span><span class=cF0> </span><span class=cFE>0x16</span><span class=cF0>
<a name="l61"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>
<a name="l62"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AH</span><span class=cF0>, </span><span class=cFE>0x0E</span><span class=cF0>
<a name="l63"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>BX</span><span class=cF0>, </span><span class=cFE>0x07</span><span class=cF0>
<a name="l64"></a> </span><span class=cF1>INT</span><span class=cF0> </span><span class=cFE>0x10</span><span class=cF0>
<a name="l65"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>
<a name="l66"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l67"></a>
<a name="l68"></a>BMHD2_HISTART:
<a name="l69"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AH</span><span class=cF0>, </span><span class=cFE>0xF</span><span class=cF0>
<a name="l70"></a> </span><span class=cF1>INT</span><span class=cF0> </span><span class=cFE>0x10</span><span class=cF0>
<a name="l71"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> [BMHD2_PAGE - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>BH</span><span class=cF0> </span><span class=cF2>//Video page</span><span class=cF0>
<a name="l72"></a>
<a name="l73"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> </span><span class=cFC>FS</span><span class=cF0>:[</span><span class=cFE>0</span><span class=cF0>], </span><span class=cFE>0</span><span class=cF0>
<a name="l74"></a>@@5: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>SI</span><span class=cF0>, </span><span class=cFD>BMHD2_BOOT_MESSAGE</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0>
<a name="l75"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFD>BMHD2_PUTS</span><span class=cF0>
<a name="l76"></a> </span><span class=cF1>CALL</span><span class=cF0> BMHD2_GETCHAR
<a name="l77"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>AL</span><span class=cF0>, </span><span class=cF6>'0'</span><span class=cF0>
<a name="l78"></a> </span><span class=cF1>JB</span><span class=cF0> @@5
<a name="l79"></a> </span><span class=cF1>CMP</span><span class=cF0> </span><span class=cFC>AL</span><span class=cF0>, </span><span class=cF6>'8'</span><span class=cF0>
<a name="l80"></a> </span><span class=cF1>JAE</span><span class=cF0> @@5
<a name="l81"></a> </span><span class=cF1>AND</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFE>7</span><span class=cF0>
<a name="l82"></a>
<a name="l83"></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=cFD>BMHD2_BLK_ARRAY</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0>[</span><span class=cFC>EAX</span><span class=cF0> * </span><span class=cFE>8</span><span class=cF0>]
<a name="l84"></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>BMHD2_BLK_ARRAY</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0>[</span><span class=cFC>EAX</span><span class=cF0> * </span><span class=cFE>8</span><span class=cF0>]
<a name="l85"></a>
<a name="l86"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>EBX</span><span class=cF0>, </span><span class=cFC>EBX</span><span class=cF0>
<a name="l87"></a> </span><span class=cF1>JNZ</span><span class=cF0> @@10
<a name="l88"></a> </span><span class=cF1>TEST</span><span class=cF0> </span><span class=cFC>EAX</span><span class=cF0>, </span><span class=cFC>EAX</span><span class=cF0>
<a name="l89"></a> </span><span class=cF1>JZ</span><span class=cF0> @@5
<a name="l90"></a>
<a name="l91"></a>@@10: </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [BMHD2_DAP_BLK_LO - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>EBX</span><span class=cF0>
<a name="l92"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U32</span><span class=cF0> [BMHD2_DAP_BLK_HI - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>EAX</span><span class=cF0>
<a name="l93"></a>
<a name="l94"></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> [BMHD2_OLD_CS_RIP - </span><span class=cFD>BMHD2_START</span><span class=cF0>]
<a name="l95"></a> </span><span class=cF1>SHR</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cFE>4</span><span class=cF0>
<a name="l96"></a> </span><span class=cF1>ADD</span><span class=cF0> </span><span class=cFC>AX</span><span class=cF0>, </span><span class=cF9>U16</span><span class=cF0> [BMHD2_OLD_CS_RIP + </span><span class=cFE>2</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0>]
<a name="l97"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cF9>U16</span><span class=cF0> [BMHD2_DAP_BUF + </span><span class=cFE>2</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0>], </span><span class=cFC>AX</span><span class=cF0> </span><span class=cF2>//ES:0000</span><span class=cF0>
<a name="l98"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>SI</span><span class=cF0>, BMHD2_DAP - </span><span class=cFD>BMHD2_START</span><span class=cF0> </span><span class=cF2>//DS:SI=DAP</span><span class=cF0>
<a name="l99"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>DL</span><span class=cF0>, </span><span class=cF1>U8</span><span class=cF0> [BMHD2_BIOS_DRIVE_NUM - </span><span class=cFD>BMHD2_START</span><span class=cF0>]
<a name="l100"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>AH</span><span class=cF0>, </span><span class=cFE>0x42</span><span class=cF0>
<a name="l101"></a> </span><span class=cF1>INT</span><span class=cF0> </span><span class=cFE>0x13</span><span class=cF0>
<a name="l102"></a>
<a name="l103"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>EBP</span><span class=cF0>
<a name="l104"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>EDX</span><span class=cF0>
<a name="l105"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>EBX</span><span class=cF0>
<a name="l106"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>ECX</span><span class=cF0>
<a name="l107"></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="l108"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>GS</span><span class=cF0>
<a name="l109"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>FS</span><span class=cF0>
<a name="l110"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>ES</span><span class=cF0>
<a name="l111"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>DS</span><span class=cF0>
<a name="l112"></a> </span><span class=cF1>POPF</span><span class=cF0>
<a name="l113"></a>
<a name="l114"></a></span><span class=cF2>//The assembler doesn't support 16-bit very well.</span><span class=cF0>
<a name="l115"></a> </span><span class=cF1>DU8</span><span class=cF0> </span><span class=cFE>0xEA</span><span class=cF0>; </span><span class=cF2>//JMP xxxx:yyyy</span><span class=cF0>
<a name="l116"></a>BMHD2_OLD_CS_RIP:
<a name="l117"></a> </span><span class=cF1>DU16</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>;
<a name="l118"></a></span><span class=cFD>BMHD2_END</span><span class=cF0>::
<a name="l119"></a></span><span class=cF2>//Continues here </span><a href="https://zeal-operating-system.github.io/ZealOS/System/Boot/BootHD.CC.html#l10"><span class=cF4>::/System/Boot/BootHD.CC</span></a><span class=cF0>
<a name="l120"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cFD>BMHD2_END</span><span class=cF0> - </span><span class=cFD>BMHD2_START</span><span class=cF0> &lt; </span><span class=cF3>MODULE_SIZE</span><span class=cF0>
<a name="l121"></a>}
</span></pre></body>
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