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ZealOS/docs/System/Boot/BootRAM.CC.html
TomAwezome dd959b40c5 Add progress bar to DVDImageRead.
2021-08-17 02:47:37 -04:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF0>#</span><span class=cF1>help_index</span><span class=cF0> </span><span class=cF6>&quot;Call&quot;</span><span class=cF0>
<a name="l2"></a></span><span class=cF1>asm</span><span class=cF0> {
<a name="l3"></a></span><span class=cFD>_HI_CALL</span><span class=cF0>::
<a name="l4"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l5"></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="l6"></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=cFE>16</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l7"></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="l8"></a> </span><span class=cF1>JZ</span><span class=cF0> @@05
<a name="l9"></a> </span><span class=cF1>CALL</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l10"></a>@@05: </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l11"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l12"></a></span><span class=cF2>//************************************</span><span class=cF0>
<a name="l13"></a></span><span class=cFD>_HI_MEMCOPY</span><span class=cF0>::
<a name="l14"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l15"></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="l16"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l17"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l18"></a> </span><span class=cF1>CLD</span><span class=cF0>
<a name="l19"></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_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l20"></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=cF3>SF_ARG2</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l21"></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=cF3>SF_ARG3</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
<a name="l22"></a> </span><span class=cF1>REP_MOVSB</span><span class=cF0>
<a name="l23"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>, </span><span class=cFC>RDI</span><span class=cF0>
<a name="l24"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RDI</span><span class=cF0>
<a name="l25"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RSI</span><span class=cF0>
<a name="l26"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l27"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>24</span><span class=cF0>
<a name="l28"></a>}
<a name="l29"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_HI_CALL</span><span class=cF0> </span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>HiCall</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *machine_code);
<a name="l30"></a></span><span class=cF1>_extern</span><span class=cF0> </span><span class=cFD>_HI_MEMCOPY</span><span class=cF0> </span><span class=cF1>U8</span><span class=cF0> *</span><span class=cF5>HiMemCopy</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *dst, </span><span class=cF1>U8</span><span class=cF0> *src, </span><span class=cF9>I64</span><span class=cF0> count);
<a name="l31"></a>
<a name="l32"></a>#</span><span class=cF1>help_index</span><span class=cF0> </span><span class=cF6>&quot;Boot&quot;</span><span class=cF0>
<a name="l33"></a></span><span class=cF1>public</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>BootRAM</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *filename=</span><span class=cF6>&quot;::&quot;</span><span class=cF0> </span><span class=cF3>BOOT_DIR_KERNEL_BIN_C</span><span class=cF0>)
<a name="l34"></a>{</span><span class=cF2>//Softboot Kernel.BIN file. No hardware reset.</span><span class=cF0>
<a name="l35"></a> </span><span class=cF9>I64</span><span class=cF0> size;
<a name="l36"></a> </span><span class=cF9>CKernel</span><span class=cF0> *hi_image, *lo_image = </span><span class=cFB>mem_boot_base</span><span class=cF0> - </span><span class=cF1>sizeof</span><span class=cF0>(</span><span class=cF9>CBinFile</span><span class=cF0>), </span><span class=cF1>reg</span><span class=cF0> *sys_ram_reboot;
<a name="l37"></a> </span><span class=cF1>do</span><span class=cF0>
<a name="l38"></a> </span><span class=cF1>if</span><span class=cF0> (!</span><span class=cF7>(</span><span class=cF0>hi_image = </span><span class=cF5>FileRead</span><span class=cF0>(filename, &amp;size)</span><span class=cF7>)</span><span class=cF0>)
<a name="l39"></a> </span><span class=cF1>return</span><span class=cF0>;
<a name="l40"></a> </span><span class=cF1>while</span><span class=cF0> (hi_image &lt; </span><span class=cFE>0x100000</span><span class=cF0>); </span><span class=cF2>//If alloc from low 640K, just get another copy.</span><span class=cF0>
<a name="l41"></a>
<a name="l42"></a> </span><span class=cF1>do</span><span class=cF0>
<a name="l43"></a> sys_ram_reboot = </span><span class=cF5>MAlloc</span><span class=cF0>(</span><span class=cFD>SYS_RAM_REBOOT_END</span><span class=cF0> - </span><span class=cFD>SYS_RAM_REBOOT</span><span class=cF0>, </span><span class=cF5>Fs</span><span class=cF0>-&gt;code_heap);
<a name="l44"></a> </span><span class=cF1>while</span><span class=cF0> (sys_ram_reboot &lt; </span><span class=cFE>0x100000</span><span class=cF0>);
<a name="l45"></a>
<a name="l46"></a> hi_image-&gt;boot_src = </span><span class=cF3>BOOT_SRC_RAM</span><span class=cF0>;
<a name="l47"></a> hi_image-&gt;boot_blk = </span><span class=cFE>0</span><span class=cF0>;
<a name="l48"></a> hi_image-&gt;boot_patch_table_base = lo_image(</span><span class=cF1>U8</span><span class=cF0> *) + hi_image-&gt;h.patch_table_offset;
<a name="l49"></a> hi_image-&gt;</span><span class=cFB>sys_run_level</span><span class=cF0> = lo_image-&gt;</span><span class=cFB>sys_run_level</span><span class=cF0> &amp; (</span><span class=cF3>RLF_VESA</span><span class=cF0> | </span><span class=cF3>RLF_16BIT</span><span class=cF0>);
<a name="l50"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(&amp;hi_image-&gt;</span><span class=cF1>start</span><span class=cF0>, &amp;lo_image-&gt;</span><span class=cF1>start</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CKernel</span><span class=cF7>)</span><span class=cF0> - </span><span class=cF1>offset</span><span class=cF7>(</span><span class=cF9>CKernel</span><span class=cF0>.</span><span class=cF1>start</span><span class=cF7>)</span><span class=cF0>);
<a name="l51"></a>
<a name="l52"></a> </span><span class=cF1>CLI</span><span class=cF0>
<a name="l53"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cFB>mp_count</span><span class=cF0> &gt; </span><span class=cFE>1</span><span class=cF0>)
<a name="l54"></a> </span><span class=cF5>MPHalt</span><span class=cF0>;
<a name="l55"></a>
<a name="l56"></a> </span><span class=cF5>HiMemCopy</span><span class=cF0>(sys_ram_reboot, </span><span class=cFD>SYS_RAM_REBOOT</span><span class=cF0>, </span><span class=cFD>SYS_RAM_REBOOT_END</span><span class=cF0> - </span><span class=cFD>SYS_RAM_REBOOT</span><span class=cF0>);
<a name="l57"></a> </span><span class=cF5>HiMemCopy</span><span class=cF0>(lo_image, hi_image, size);
<a name="l58"></a> </span><span class=cF5>HiCall</span><span class=cF0>(sys_ram_reboot);
<a name="l59"></a>}
</span></pre></body>
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