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https://github.com/perfect-dark-pc-port/perfect_dark.git
synced 2026-10-23 15:52:41 +02:00
Decompile sndLoadKeymap
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Ryan Dwyer committed
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6b19999345
commit
e83894195b
2 files changed
+43
-167
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@@ -7021,16 +7021,12 @@ struct mp3vars {
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/*0x61*/ u8 var8009c3f1;
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};
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struct var80095210_35c {
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u8 unk00[6];
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};
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struct sndcache {
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u16 *indexes; // indexed by sfxnum, value is cache index (0-44) or 0xffff
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u8 permanent[45];
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u16 ages[45];
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u8 unk8c[0x2d0];
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struct var80095210_35c unk35c[45];
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ALKeyMap keymaps[45];
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u8 unk46a[0x39aa];
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/*0x3e14*/ ALSound sounds[45];
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u32 unk40e4;
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+42
-162
@@ -1246,172 +1246,52 @@ glabel sndLoadEnvelope
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);
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#endif
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ALKeyMap *sndLoadKeymap(u32 offset, u16 cacheindex)
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{
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#if VERSION >= VERSION_NTSC_1_0
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GLOBAL_ASM(
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glabel sndLoadKeymap
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/* ee88: 27bdff10 */ addiu $sp,$sp,-240
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/* ee8c: afb20020 */ sw $s2,0x20($sp)
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/* ee90: afb1001c */ sw $s1,0x1c($sp)
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/* ee94: 03a08825 */ or $s1,$sp,$zero
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/* ee98: 03a09025 */ or $s2,$sp,$zero
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/* ee9c: 3c0e0081 */ lui $t6,%hi(_sfxctlSegmentRomStart)
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/* eea0: 265200af */ addiu $s2,$s2,0xaf
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/* eea4: 2631005f */ addiu $s1,$s1,0x5f
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/* eea8: afb40028 */ sw $s4,0x28($sp)
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/* eeac: afb30024 */ sw $s3,0x24($sp)
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/* eeb0: 25cea250 */ addiu $t6,$t6,%lo(_sfxctlSegmentRomStart)
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/* eeb4: 3639000f */ ori $t9,$s1,0xf
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/* eeb8: 364f000f */ ori $t7,$s2,0xf
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/* eebc: afbf002c */ sw $ra,0x2c($sp)
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/* eec0: afb00018 */ sw $s0,0x18($sp)
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/* eec4: afa500f4 */ sw $a1,0xf4($sp)
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/* eec8: 008ea021 */ addu $s4,$a0,$t6
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/* eecc: 39f2000f */ xori $s2,$t7,0xf
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/* eed0: 3b31000f */ xori $s1,$t9,0xf
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/* eed4: 24130040 */ addiu $s3,$zero,0x40
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/* eed8: 02402025 */ or $a0,$s2,$zero
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.L0000eedc:
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/* eedc: 02802825 */ or $a1,$s4,$zero
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/* eee0: 0c003513 */ jal dmaExecHighPriority
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/* eee4: 24060040 */ addiu $a2,$zero,0x40
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/* eee8: 00008025 */ or $s0,$zero,$zero
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/* eeec: 00001825 */ or $v1,$zero,$zero
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/* eef0: 00001025 */ or $v0,$zero,$zero
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.L0000eef4:
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/* eef4: 02424821 */ addu $t1,$s2,$v0
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/* eef8: 8d2a0000 */ lw $t2,0x0($t1)
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/* eefc: 24630001 */ addiu $v1,$v1,0x1
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/* ef00: 2c610010 */ sltiu $at,$v1,0x10
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/* ef04: 24420004 */ addiu $v0,$v0,0x4
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/* ef08: 1420fffa */ bnez $at,.L0000eef4
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/* ef0c: 020a8021 */ addu $s0,$s0,$t2
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/* ef10: 02202025 */ or $a0,$s1,$zero
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/* ef14: 02802825 */ or $a1,$s4,$zero
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/* ef18: 0c003513 */ jal dmaExecHighPriority
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/* ef1c: 24060040 */ addiu $a2,$zero,0x40
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/* ef20: 00002025 */ or $a0,$zero,$zero
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/* ef24: 00001025 */ or $v0,$zero,$zero
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.L0000ef28:
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/* ef28: 02225821 */ addu $t3,$s1,$v0
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/* ef2c: 8d6c0000 */ lw $t4,0x0($t3)
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/* ef30: 24420004 */ addiu $v0,$v0,0x4
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/* ef34: 1453fffc */ bne $v0,$s3,.L0000ef28
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/* ef38: 008c2021 */ addu $a0,$a0,$t4
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/* ef3c: 5604ffe7 */ bnel $s0,$a0,.L0000eedc
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/* ef40: 02402025 */ or $a0,$s2,$zero
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/* ef44: 97a300f6 */ lhu $v1,0xf6($sp)
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/* ef48: 8a210000 */ lwl $at,0x0($s1)
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/* ef4c: 9a210003 */ lwr $at,0x3($s1)
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/* ef50: 00036880 */ sll $t5,$v1,0x2
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/* ef54: 3c048009 */ lui $a0,%hi(g_SndCache)
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/* ef58: 01a36823 */ subu $t5,$t5,$v1
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/* ef5c: 24845210 */ addiu $a0,$a0,%lo(g_SndCache)
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/* ef60: 000d6840 */ sll $t5,$t5,0x1
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/* ef64: 008d7021 */ addu $t6,$a0,$t5
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/* ef68: a9c1035c */ swl $at,0x35c($t6)
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/* ef6c: b9c1035f */ swr $at,0x35f($t6)
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/* ef70: 92210004 */ lbu $at,0x4($s1)
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/* ef74: 008d1021 */ addu $v0,$a0,$t5
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/* ef78: 2442035c */ addiu $v0,$v0,0x35c
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/* ef7c: a1c10360 */ sb $at,0x360($t6)
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/* ef80: 92380005 */ lbu $t8,0x5($s1)
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/* ef84: a1d80361 */ sb $t8,0x361($t6)
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/* ef88: 8fbf002c */ lw $ra,0x2c($sp)
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/* ef8c: 8fb40028 */ lw $s4,0x28($sp)
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/* ef90: 8fb30024 */ lw $s3,0x24($sp)
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/* ef94: 8fb20020 */ lw $s2,0x20($sp)
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/* ef98: 8fb1001c */ lw $s1,0x1c($sp)
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/* ef9c: 8fb00018 */ lw $s0,0x18($sp)
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/* efa0: 03e00008 */ jr $ra
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/* efa4: 27bd00f0 */ addiu $sp,$sp,0xf0
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);
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u8 spaf[0x50];
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u8 sp5f[0x50];
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ALKeyMap *s2 = (ALKeyMap *)ALIGN16((u32)spaf);
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ALKeyMap *s1 = (ALKeyMap *)ALIGN16((u32)sp5f);
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s32 i;
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s32 sum1;
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s32 sum2;
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offset += (u32)&_sfxctlSegmentRomStart;
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do {
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dmaExecHighPriority(s2, offset, 0x40);
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sum1 = 0;
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for (i = 0; i < 16U; i++) {
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sum1 += ((u32 *)s2)[i];
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}
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dmaExecHighPriority(s1, offset, 0x40);
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sum2 = 0;
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for (i = 0; i < 16U; i++) {
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sum2 += ((u32 *)s1)[i];
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}
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if (1);
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} while (sum1 != sum2);
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#else
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GLOBAL_ASM(
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glabel sndLoadKeymap
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/* f54c: 27bdff90 */ addiu $sp,$sp,-112
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/* f550: 3c0e007c */ lui $t6,0x7c
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/* f554: afa50074 */ sw $a1,0x74($sp)
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/* f558: 25cee940 */ addiu $t6,$t6,-5824
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/* f55c: afa40070 */ sw $a0,0x70($sp)
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/* f560: 008e2821 */ addu $a1,$a0,$t6
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/* f564: 03a02025 */ or $a0,$sp,$zero
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/* f568: 2484002f */ addiu $a0,$a0,0x2f
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/* f56c: 348f000f */ ori $t7,$a0,0xf
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/* f570: afbf0014 */ sw $ra,0x14($sp)
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/* f574: 39e4000f */ xori $a0,$t7,0xf
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/* f578: afa40018 */ sw $a0,0x18($sp)
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/* f57c: 0c00366e */ jal dmaExecHighPriority
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/* f580: 24060040 */ addiu $a2,$zero,0x40
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/* f584: 8fa40018 */ lw $a0,0x18($sp)
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/* f588: 97a30076 */ lhu $v1,0x76($sp)
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/* f58c: 3c05800a */ lui $a1,0x800a
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/* f590: 88810000 */ lwl $at,0x0($a0)
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/* f594: 0003c880 */ sll $t9,$v1,0x2
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/* f598: 98810003 */ lwr $at,0x3($a0)
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/* f59c: 0323c823 */ subu $t9,$t9,$v1
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/* f5a0: 24a58190 */ addiu $a1,$a1,-32368
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/* f5a4: 0019c840 */ sll $t9,$t9,0x1
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/* f5a8: 00b94021 */ addu $t0,$a1,$t9
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/* f5ac: a901035c */ swl $at,0x35c($t0)
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/* f5b0: b901035f */ swr $at,0x35f($t0)
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/* f5b4: 90810004 */ lbu $at,0x4($a0)
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/* f5b8: 00b91021 */ addu $v0,$a1,$t9
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/* f5bc: 2442035c */ addiu $v0,$v0,0x35c
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/* f5c0: a1010360 */ sb $at,0x360($t0)
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/* f5c4: 908b0005 */ lbu $t3,0x5($a0)
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/* f5c8: a10b0361 */ sb $t3,0x361($t0)
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/* f5cc: 8fbf0014 */ lw $ra,0x14($sp)
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/* f5d0: 27bd0070 */ addiu $sp,$sp,0x70
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/* f5d4: 03e00008 */ jr $ra
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/* f5d8: 00000000 */ sll $zero,$zero,0x0
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);
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u8 sp5f[0x50];
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ALKeyMap *s1 = (ALKeyMap *)ALIGN16((u32)sp5f);
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offset += (u32)&_sfxctlSegmentRomStart;
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dmaExecHighPriority(s1, offset, 0x40);
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#endif
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// Mismatch:
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// Goal calculates the address of g_SndCache.unk35c twice.
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// The below demonstrates similar codegen by not adding arg1 to the return value.
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//struct var80095210_35c *sndLoadKeymap(u32 segoffset, u16 arg1)
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//{
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//#if VERSION >= VERSION_NTSC_1_0
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// u8 spaf[0x50];
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// u8 sp5f[0x50];
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// u32 *s2 = (u32 *)ALIGN16((u32)spaf);
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// u32 *s1 = (u32 *)ALIGN16((u32)sp5f);
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// s32 i;
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// s32 sum1;
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// s32 sum2;
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//
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// segoffset += (u32)&_sfxctlSegmentRomStart;
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//
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// do {
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// dmaExecHighPriority(s2, segoffset, 0x40);
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// sum1 = 0;
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//
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// for (i = 0; i < 16U; i++) {
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// sum1 += s2[i];
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// }
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//
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// dmaExecHighPriority(s1, segoffset, 0x40);
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// sum2 = 0;
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//
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// for (i = 0; i < 16U; i++) {
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// sum2 += s1[i];
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// }
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// } while (sum1 != sum2);
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//#else
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// u8 sp5f[0x50];
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// u32 *s1 = (u32 *)ALIGN16((u32)sp5f);
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//
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// segoffset += (u32)&_sfxctlSegmentRomStart;
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//
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// dmaExecHighPriority(s1, segoffset, 0x40);
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//#endif
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//
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// g_SndCache.unk35c[arg1] = *(struct var80095210_35c *)s1;
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//
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// //return &g_SndCache.unk35c[arg1];
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// return (struct var80095210_35c *)((u32)&g_SndCache + 0x35c);
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//}
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g_SndCache.keymaps[cacheindex] = *s1;
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s1 = g_SndCache.keymaps;
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s1 += cacheindex;
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return s1;
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}
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#if VERSION >= VERSION_NTSC_1_0
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GLOBAL_ASM(
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