Decompile osInitialize
This commit is contained in:
Ryan Dwyer
parent
c8448cdd11
commit
ec48a31f23
10
ld/pd.ld
10
ld/pd.ld
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@ -134,13 +134,15 @@ SECTIONS
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osMemSize = 0x80000318;
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osAppNMIBuffer = 0x8000031c;
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var803f50b8 = 0x803f50b8;
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vara00002e8 = 0xa00002e8;
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vara4500004 = 0xa4500004;
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varbc000c02 = 0xbc000c02; /* for ntsc-beta */
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var800902e4 = 0x800902e4; /* for ntsc-beta */
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var800902e8 = 0x800902e8; /* for ntsc-beta */
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var803f50b8 = 0x803f50b8;
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vara00002e8 = 0xa00002e8;
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varbc000c02 = 0xbc000c02; /* for ntsc-beta */
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/***************************************************************************
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* romheader
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* -------------------------------------------------------------------------
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@ -3041,9 +3041,8 @@ u32 var8005cf50 = 0x00000000;
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u32 var8005cf54 = 0x00000000;
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u32 var8005cf58 = 0x00000000;
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u32 var8005cf5c = 0x00000000;
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u32 var8005cf60 = 0x00000000;
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u32 var8005cf64 = 0x03b9aca0;
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u32 osViClock = 0x02e6d354;
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OSTime osClockRate = 62500000;
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u32 osViClock = VI_NTSC_CLOCK;
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u32 var8005cf6c = 0x00000000;
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u32 __osGlobalIntMask = 0x003fff01;
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u32 var8005cf74 = 0x00000000;
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@ -57,7 +57,7 @@ extern u32 __osViDevMgr;
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extern u32 var8005cefc;
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extern OSDevMgr __osPiDevMgr;
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extern u32 var8005cf30;
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extern u32 var8005cf60;
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extern OSTime osClockRate;
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extern u32 osViClock;
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extern u32 var8005cf6c;
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extern u32 __osGlobalIntMask;
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@ -358,6 +358,7 @@ extern u32 piEventQueue;
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extern u32 piEventBuf;
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extern u32 var800907f0;
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extern u32 __osPfsPifRam;
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extern u32 __osFinalRom;
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extern u32 var80090a70;
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extern u32 var80090ab0;
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extern u32 var80090ad0;
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@ -29,8 +29,8 @@ void __osPiGetAccess();
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void __osSetSR(u32);
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u32 __osGetSR();
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void __osSetFpcCsr(u32);
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s32 __osSiRawReadIo(void*, u32*);
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s32 __osSiRawWriteIo(void*, u32);
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s32 __osSiRawReadIo(u32, u32*);
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s32 __osSiRawWriteIo(u32, u32);
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s32 osPiRawReadIo(u32 a0, u32 *a1);
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void __osSpSetStatus(u32);
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u32 __osSpGetStatus();
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@ -1,167 +1,58 @@
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#include <libultra_internal.h>
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#include "game/data/data_000000.h"
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#include "gvars/gvars.h"
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GLOBAL_ASM(
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glabel osInitialize
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/* 5b60: 27bdffc8 */ addiu $sp,$sp,-56
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/* 5b64: afbf001c */ sw $ra,0x1c($sp)
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/* 5b68: 240e0001 */ addiu $t6,$zero,0x1
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/* 5b6c: 3c018009 */ lui $at,%hi(__osFinalRom)
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/* 5b70: afb10018 */ sw $s1,0x18($sp)
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/* 5b74: afb00014 */ sw $s0,0x14($sp)
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/* 5b78: 0c012b34 */ jal __osGetSR
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/* 5b7c: ac2e0a60 */ sw $t6,%lo(__osFinalRom)($at)
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/* 5b80: 3c012000 */ lui $at,0x2000
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/* 5b84: 0c012b30 */ jal __osSetSR
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/* 5b88: 00412025 */ or $a0,$v0,$at
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/* 5b8c: 3c040100 */ lui $a0,0x100
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/* 5b90: 0c012078 */ jal __osSetFpcCsr
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/* 5b94: 34840800 */ ori $a0,$a0,0x800
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/* 5b98: 3c101fc0 */ lui $s0,0x1fc0
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/* 5b9c: 361007fc */ ori $s0,$s0,0x7fc
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/* 5ba0: 27b10034 */ addiu $s1,$sp,0x34
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/* 5ba4: 02202825 */ or $a1,$s1,$zero
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/* 5ba8: 0c012b38 */ jal __osSiRawReadIo
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/* 5bac: 02002025 */ or $a0,$s0,$zero
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/* 5bb0: 10400005 */ beqz $v0,.L00005bc8
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/* 5bb4: 02002025 */ or $a0,$s0,$zero
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.L00005bb8:
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/* 5bb8: 0c012b38 */ jal __osSiRawReadIo
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/* 5bbc: 02202825 */ or $a1,$s1,$zero
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/* 5bc0: 5440fffd */ bnezl $v0,.L00005bb8
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/* 5bc4: 02002025 */ or $a0,$s0,$zero
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.L00005bc8:
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/* 5bc8: 8fa50034 */ lw $a1,0x34($sp)
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/* 5bcc: 02002025 */ or $a0,$s0,$zero
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/* 5bd0: 34af0008 */ ori $t7,$a1,0x8
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/* 5bd4: 0c012b4c */ jal __osSiRawWriteIo
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/* 5bd8: 01e02825 */ or $a1,$t7,$zero
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/* 5bdc: 10400008 */ beqz $v0,.L00005c00
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/* 5be0: 00000000 */ nop
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/* 5be4: 8fa50034 */ lw $a1,0x34($sp)
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.L00005be8:
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/* 5be8: 02002025 */ or $a0,$s0,$zero
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/* 5bec: 34b80008 */ ori $t8,$a1,0x8
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/* 5bf0: 0c012b4c */ jal __osSiRawWriteIo
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/* 5bf4: 03002825 */ or $a1,$t8,$zero
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/* 5bf8: 5440fffb */ bnezl $v0,.L00005be8
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/* 5bfc: 8fa50034 */ lw $a1,0x34($sp)
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.L00005c00:
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/* 5c00: 3c027000 */ lui $v0,%hi(__osExceptionPreamble)
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/* 5c04: 244234f0 */ addiu $v0,$v0,%lo(__osExceptionPreamble)
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/* 5c08: 8c410000 */ lw $at,0x0($v0)
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/* 5c0c: 3c108000 */ lui $s0,0x8000
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/* 5c10: 3c098000 */ lui $t1,0x8000
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/* 5c14: ae010000 */ sw $at,0x0($s0)
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/* 5c18: 8c480004 */ lw $t0,0x4($v0)
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/* 5c1c: 35290080 */ ori $t1,$t1,0x80
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/* 5c20: 3c0c8000 */ lui $t4,0x8000
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/* 5c24: ae080004 */ sw $t0,0x4($s0)
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/* 5c28: 8c410008 */ lw $at,0x8($v0)
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/* 5c2c: 358c0100 */ ori $t4,$t4,0x100
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/* 5c30: 3c0f8000 */ lui $t7,0x8000
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/* 5c34: ae010008 */ sw $at,0x8($s0)
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/* 5c38: 8c48000c */ lw $t0,0xc($v0)
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/* 5c3c: 35ef0180 */ ori $t7,$t7,0x180
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/* 5c40: 02002025 */ or $a0,$s0,$zero
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/* 5c44: ae08000c */ sw $t0,0xc($s0)
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/* 5c48: 8c410000 */ lw $at,0x0($v0)
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/* 5c4c: 24050190 */ addiu $a1,$zero,0x190
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/* 5c50: ad210000 */ sw $at,0x0($t1)
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/* 5c54: 8c4b0004 */ lw $t3,0x4($v0)
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/* 5c58: ad2b0004 */ sw $t3,0x4($t1)
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/* 5c5c: 8c410008 */ lw $at,0x8($v0)
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/* 5c60: ad210008 */ sw $at,0x8($t1)
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/* 5c64: 8c4b000c */ lw $t3,0xc($v0)
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/* 5c68: ad2b000c */ sw $t3,0xc($t1)
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/* 5c6c: 8c410000 */ lw $at,0x0($v0)
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/* 5c70: ad810000 */ sw $at,0x0($t4)
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/* 5c74: 8c4e0004 */ lw $t6,0x4($v0)
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/* 5c78: ad8e0004 */ sw $t6,0x4($t4)
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/* 5c7c: 8c410008 */ lw $at,0x8($v0)
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/* 5c80: ad810008 */ sw $at,0x8($t4)
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/* 5c84: 8c4e000c */ lw $t6,0xc($v0)
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/* 5c88: ad8e000c */ sw $t6,0xc($t4)
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/* 5c8c: 8c410000 */ lw $at,0x0($v0)
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/* 5c90: ade10000 */ sw $at,0x0($t7)
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/* 5c94: 8c590004 */ lw $t9,0x4($v0)
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/* 5c98: adf90004 */ sw $t9,0x4($t7)
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/* 5c9c: 8c410008 */ lw $at,0x8($v0)
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/* 5ca0: ade10008 */ sw $at,0x8($t7)
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/* 5ca4: 8c59000c */ lw $t9,0xc($v0)
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/* 5ca8: 0c012b60 */ jal osWritebackDCache
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/* 5cac: adf9000c */ sw $t9,0xc($t7)
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/* 5cb0: 02002025 */ or $a0,$s0,$zero
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/* 5cb4: 0c012054 */ jal osInvalICache
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/* 5cb8: 24050190 */ addiu $a1,$zero,0x190
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/* 5cbc: 0c001770 */ jal func00005dc0
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/* 5cc0: 00000000 */ nop
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/* 5cc4: 0c000bfc */ jal osMapTLBRdb
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/* 5cc8: 00000000 */ nop
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/* 5ccc: 3c108006 */ lui $s0,%hi(var8005cf60)
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/* 5cd0: 2610cf60 */ addiu $s0,$s0,%lo(var8005cf60)
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/* 5cd4: 8e040000 */ lw $a0,0x0($s0)
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/* 5cd8: 8e050004 */ lw $a1,0x4($s0)
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/* 5cdc: 24060000 */ addiu $a2,$zero,0x0
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/* 5ce0: 0c012bda */ jal __ll_mul
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/* 5ce4: 24070003 */ addiu $a3,$zero,0x3
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/* 5ce8: 00402025 */ or $a0,$v0,$zero
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/* 5cec: 00602825 */ or $a1,$v1,$zero
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/* 5cf0: 24060000 */ addiu $a2,$zero,0x0
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/* 5cf4: 0c012b9a */ jal __ull_div
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/* 5cf8: 24070004 */ addiu $a3,$zero,0x4
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/* 5cfc: ae020000 */ sw $v0,0x0($s0)
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/* 5d00: ae030004 */ sw $v1,0x4($s0)
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/* 5d04: 3c088000 */ lui $t0,0x8000
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/* 5d08: 8d08030c */ lw $t0,0x30c($t0)
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/* 5d0c: 3c048000 */ lui $a0,0x8000
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/* 5d10: 2484031c */ addiu $a0,$a0,0x31c
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/* 5d14: 15000003 */ bnez $t0,.L00005d24
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/* 5d18: 00000000 */ nop
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/* 5d1c: 0c012c30 */ jal bzero
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/* 5d20: 24050040 */ addiu $a1,$zero,0x40
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.L00005d24:
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/* 5d24: 3c028000 */ lui $v0,0x8000
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/* 5d28: 8c420300 */ lw $v0,0x300($v0)
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/* 5d2c: 3c0a02f5 */ lui $t2,0x2f5
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/* 5d30: 354ab2d2 */ ori $t2,$t2,0xb2d2
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/* 5d34: 14400004 */ bnez $v0,.L00005d48
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/* 5d38: 24010002 */ addiu $at,$zero,0x2
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/* 5d3c: 3c018006 */ lui $at,%hi(osViClock)
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/* 5d40: 1000000b */ b .L00005d70
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/* 5d44: ac2acf68 */ sw $t2,%lo(osViClock)($at)
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.L00005d48:
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/* 5d48: 14410006 */ bne $v0,$at,.L00005d64
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/* 5d4c: 3c0b02e6 */ lui $t3,0x2e6
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/* 5d50: 3c0902e6 */ lui $t1,0x2e6
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/* 5d54: 3529d354 */ ori $t1,$t1,0xd354
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/* 5d58: 3c018006 */ lui $at,%hi(osViClock)
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/* 5d5c: 10000004 */ b .L00005d70
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/* 5d60: ac29cf68 */ sw $t1,%lo(osViClock)($at)
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.L00005d64:
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/* 5d64: 356bd354 */ ori $t3,$t3,0xd354
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/* 5d68: 3c018006 */ lui $at,%hi(osViClock)
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/* 5d6c: ac2bcf68 */ sw $t3,%lo(osViClock)($at)
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.L00005d70:
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/* 5d70: 0c012c58 */ jal __osGetCause
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/* 5d74: 00000000 */ nop
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/* 5d78: 304d1000 */ andi $t5,$v0,0x1000
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/* 5d7c: 11a00003 */ beqz $t5,.L00005d8c
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/* 5d80: 240c0001 */ addiu $t4,$zero,0x1
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.L00005d84:
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/* 5d84: 1000ffff */ b .L00005d84
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/* 5d88: 00000000 */ nop
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.L00005d8c:
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/* 5d8c: 3c0ea450 */ lui $t6,0xa450
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/* 5d90: adcc0008 */ sw $t4,0x8($t6)
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/* 5d94: 24183fff */ addiu $t8,$zero,0x3fff
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/* 5d98: 3c0fa450 */ lui $t7,0xa450
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/* 5d9c: adf80010 */ sw $t8,0x10($t7)
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/* 5da0: 2419000f */ addiu $t9,$zero,0xf
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/* 5da4: 3c08a450 */ lui $t0,0xa450
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/* 5da8: ad190014 */ sw $t9,0x14($t0)
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/* 5dac: 8fbf001c */ lw $ra,0x1c($sp)
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/* 5db0: 8fb10018 */ lw $s1,0x18($sp)
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/* 5db4: 8fb00014 */ lw $s0,0x14($sp)
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/* 5db8: 03e00008 */ jr $ra
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/* 5dbc: 27bd0038 */ addiu $sp,$sp,0x38
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);
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typedef struct {
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unsigned int inst1;
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unsigned int inst2;
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unsigned int inst3;
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unsigned int inst4;
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} __osExceptionVector;
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extern __osExceptionVector __osExceptionPreamble;
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extern u32 osAppNMIBuffer;
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void osInitialize()
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{
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u32 pifdata;
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__osFinalRom = TRUE;
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__osSetSR(__osGetSR() | SR_CU1);
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__osSetFpcCsr(FPCSR_FS | FPCSR_EV);
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while (__osSiRawReadIo(PIF_RAM_END - 3, &pifdata));
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while (__osSiRawWriteIo(PIF_RAM_END - 3, pifdata | 8));
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*(__osExceptionVector *)UT_VEC = __osExceptionPreamble;
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*(__osExceptionVector *)XUT_VEC = __osExceptionPreamble;
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*(__osExceptionVector *)ECC_VEC = __osExceptionPreamble;
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*(__osExceptionVector *)E_VEC = __osExceptionPreamble;
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osWritebackDCache((void *)UT_VEC, E_VEC - UT_VEC + sizeof(__osExceptionVector));
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osInvalICache((void *)UT_VEC, E_VEC - UT_VEC + sizeof(__osExceptionVector));
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func00005dc0();
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osMapTLBRdb();
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osClockRate = osClockRate * 3 / 4;
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if (osResetType == RESET_TYPE_COLD_RESET) {
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bzero(&osAppNMIBuffer, 0x40);
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}
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if (osTvType == OS_TV_PAL) {
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osViClock = VI_PAL_CLOCK;
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} else if (osTvType == OS_TV_MPAL) {
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osViClock = VI_NTSC_CLOCK;
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} else {
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osViClock = VI_NTSC_CLOCK;
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}
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if (__osGetCause() & CAUSE_IP5) {
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while (1);
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}
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*(u32 *)PHYS_TO_K1(AI_CONTROL_REG) = 1;
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*(u32 *)PHYS_TO_K1(AI_DACRATE_REG) = 0x3fff;
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*(u32 *)PHYS_TO_K1(AI_BITRATE_REG) = 0xf;
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}
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