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Decompile anim00023908

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This commit is contained in:
Ryan Dwyer
2021-11-07 14:45:09 +10:00
parent ad21e2c8b8
commit 20a18f31c3
2 changed files with 33 additions and 61 deletions
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src/include/lib/anim.h
+1 -1
View File
@@ -12,7 +12,7 @@ bool animHasFrames(s16 animnum);
s32 animGetNumAnimations(void);
u8 *animDma(u8 *dst, u32 segoffset, u32 len);
s32 anim0002384c(s16 animnum, s32 frame);
s32 anim00023908(s16 animnum, s32 frame, s32 *frameptr);
bool anim00023908(s16 animnum, s32 frame, s32 *frameptr);
bool anim000239e0(s16 animnum, s32 frame);
u8 anim00023ab0(s16 animnum, s32 framenum);
void anim00023d0c(void);
src/lib/anim.c
+32 -60
View File
@@ -169,66 +169,38 @@ s32 anim0002384c(s16 animnum, s32 frame)
return result;
}
GLOBAL_ASM(
glabel anim00023908
/* 23908: 3c0b8006 */ lui $t3,%hi(var8005f010)
/* 2390c: 8d6bf010 */ lw $t3,%lo(var8005f010)($t3)
/* 23910: 00047400 */ sll $t6,$a0,0x10
/* 23914: 000e7c03 */ sra $t7,$t6,0x10
/* 23918: afa40000 */ sw $a0,0x0($sp)
/* 2391c: afa60008 */ sw $a2,0x8($sp)
/* 23920: 3c188006 */ lui $t8,%hi(g_Anims)
/* 23924: 016f6021 */ addu $t4,$t3,$t7
/* 23928: 918d0000 */ lbu $t5,0x0($t4)
/* 2392c: 8f18f00c */ lw $t8,%lo(g_Anims)($t8)
/* 23930: 000fc880 */ sll $t9,$t7,0x2
/* 23934: 3c0a800a */ lui $t2,%hi(var8009a888)
/* 23938: 8d4aa888 */ lw $t2,%lo(var8009a888)($t2)
/* 2393c: 032fc823 */ subu $t9,$t9,$t7
/* 23940: 0019c880 */ sll $t9,$t9,0x2
/* 23944: 000d7080 */ sll $t6,$t5,0x2
/* 23948: 03194021 */ addu $t0,$t8,$t9
/* 2394c: 014e7821 */ addu $t7,$t2,$t6
/* 23950: 8df80000 */ lw $t8,0x0($t7)
/* 23954: 95090008 */ lhu $t1,0x8($t0)
/* 23958: 00a01825 */ or $v1,$a1,$zero
/* 2395c: 24070001 */ addiu $a3,$zero,0x1
/* 23960: 01381021 */ addu $v0,$t1,$t8
/* 23964: 2442fffe */ addiu $v0,$v0,-2
.L00023968:
/* 23968: 90480000 */ lbu $t0,0x0($v0)
/* 2396c: 90590001 */ lbu $t9,0x1($v0)
/* 23970: 00085a00 */ sll $t3,$t0,0x8
/* 23974: 032b2025 */ or $a0,$t9,$t3
/* 23978: 00046400 */ sll $t4,$a0,0x10
/* 2397c: 000c6c03 */ sra $t5,$t4,0x10
/* 23980: 05a00013 */ bltz $t5,.L000239d0
/* 23984: 01a02025 */ or $a0,$t5,$zero
/* 23988: 904efffe */ lbu $t6,-0x2($v0)
/* 2398c: 904affff */ lbu $t2,-0x1($v0)
/* 23990: 00ad082a */ slt $at,$a1,$t5
/* 23994: 000e7a00 */ sll $t7,$t6,0x8
/* 23998: 014f3025 */ or $a2,$t2,$t7
/* 2399c: 00064c00 */ sll $t1,$a2,0x10
/* 239a0: 0009c403 */ sra $t8,$t1,0x10
/* 239a4: 1420fff0 */ bnez $at,.L00023968
/* 239a8: 2442fffc */ addiu $v0,$v0,-4
/* 239ac: 0305082a */ slt $at,$t8,$a1
/* 239b0: 10200004 */ beqz $at,.L000239c4
/* 239b4: 00784023 */ subu $t0,$v1,$t8
/* 239b8: 010d1821 */ addu $v1,$t0,$t5
/* 239bc: 1000ffea */ b .L00023968
/* 239c0: 2463ffff */ addiu $v1,$v1,-1
.L000239c4:
/* 239c4: 0065c823 */ subu $t9,$v1,$a1
/* 239c8: 03241821 */ addu $v1,$t9,$a0
/* 239cc: 00003825 */ or $a3,$zero,$zero
.L000239d0:
/* 239d0: 8fab0008 */ lw $t3,0x8($sp)
/* 239d4: 00e01025 */ or $v0,$a3,$zero
/* 239d8: 03e00008 */ jr $ra
/* 239dc: ad630000 */ sw $v1,0x0($t3)
);
bool anim00023908(s16 animnum, s32 frame, s32 *frameptr)
{
u8 *ptr = (u8 *)(var8009a888[var8005f010[animnum]] + g_Anims[animnum].initialposbytes - 2);
s32 result = frame;
bool ret = true;
while (true) {
s16 value1 = ptr[0] << 8 | ptr[1];
if (value1 >= 0) {
s16 value2 = ptr[-2] << 8 | ptr[-1];
ptr -= 4;
if (value1 <= frame) {
if (value2 < frame) {
result = result - value2 + value1 - 1;
continue;
}
result = result - frame + value1;
ret = false;
break;
}
} else {
break;
}
}
*frameptr = result;
return ret;
}
bool anim000239e0(s16 animnum, s32 frame)
{