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Decompile __osIdCheckSum

This commit is contained in:
Ryan Dwyer 2021-03-25 00:28:17 +10:00
parent 6ad506efce
commit b083a94d3c
1 changed files with 15 additions and 67 deletions
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82
src/lib/lib_4c090.c
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@ -113,73 +113,21 @@ glabel func0004c090
/* 4c100: 01201025 */ or $v0,$t1,$zero
);
GLOBAL_ASM(
glabel __osIdCheckSum
/* 4c104: a4c00000 */ sh $zero,0x0($a2)
/* 4c108: a4a00000 */ sh $zero,0x0($a1)
/* 4c10c: 94820000 */ lhu $v0,0x0($a0)
/* 4c110: 24870004 */ addiu $a3,$a0,0x4
/* 4c114: 24e90002 */ addiu $t1,$a3,0x2
/* 4c118: 0002c021 */ addu $t8,$zero,$v0
/* 4c11c: a4b80000 */ sh $t8,0x0($a1)
/* 4c120: 94d90000 */ lhu $t9,0x0($a2)
/* 4c124: 00406827 */ nor $t5,$v0,$zero
/* 4c128: 24ea0004 */ addiu $t2,$a3,0x4
/* 4c12c: 032d7021 */ addu $t6,$t9,$t5
/* 4c130: a4ce0000 */ sh $t6,0x0($a2)
/* 4c134: 94af0000 */ lhu $t7,0x0($a1)
/* 4c138: 94820002 */ lhu $v0,0x2($a0)
/* 4c13c: 2404001c */ addiu $a0,$zero,0x1c
/* 4c140: 24eb0006 */ addiu $t3,$a3,0x6
/* 4c144: 01e2c021 */ addu $t8,$t7,$v0
/* 4c148: a4b80000 */ sh $t8,0x0($a1)
/* 4c14c: 94d90000 */ lhu $t9,0x0($a2)
/* 4c150: 00406827 */ nor $t5,$v0,$zero
/* 4c154: 24030004 */ addiu $v1,$zero,0x4
/* 4c158: 032d7021 */ addu $t6,$t9,$t5
/* 4c15c: a4ce0000 */ sh $t6,0x0($a2)
.L0004c160:
/* 4c160: 94e20000 */ lhu $v0,0x0($a3)
/* 4c164: 94af0000 */ lhu $t7,0x0($a1)
/* 4c168: 24630008 */ addiu $v1,$v1,0x8
/* 4c16c: 00406827 */ nor $t5,$v0,$zero
/* 4c170: 01e2c021 */ addu $t8,$t7,$v0
/* 4c174: a4b80000 */ sh $t8,0x0($a1)
/* 4c178: 94d90000 */ lhu $t9,0x0($a2)
/* 4c17c: 24e70008 */ addiu $a3,$a3,0x8
/* 4c180: 25290008 */ addiu $t1,$t1,0x8
/* 4c184: 032d7021 */ addu $t6,$t9,$t5
/* 4c188: a4ce0000 */ sh $t6,0x0($a2)
/* 4c18c: 94af0000 */ lhu $t7,0x0($a1)
/* 4c190: 9522fff8 */ lhu $v0,-0x8($t1)
/* 4c194: 254a0008 */ addiu $t2,$t2,0x8
/* 4c198: 256b0008 */ addiu $t3,$t3,0x8
/* 4c19c: 01e2c021 */ addu $t8,$t7,$v0
/* 4c1a0: a4b80000 */ sh $t8,0x0($a1)
/* 4c1a4: 94d90000 */ lhu $t9,0x0($a2)
/* 4c1a8: 00406827 */ nor $t5,$v0,$zero
/* 4c1ac: 032d7021 */ addu $t6,$t9,$t5
/* 4c1b0: a4ce0000 */ sh $t6,0x0($a2)
/* 4c1b4: 94af0000 */ lhu $t7,0x0($a1)
/* 4c1b8: 9542fff8 */ lhu $v0,-0x8($t2)
/* 4c1bc: 01e2c021 */ addu $t8,$t7,$v0
/* 4c1c0: a4b80000 */ sh $t8,0x0($a1)
/* 4c1c4: 94d90000 */ lhu $t9,0x0($a2)
/* 4c1c8: 00406827 */ nor $t5,$v0,$zero
/* 4c1cc: 032d7021 */ addu $t6,$t9,$t5
/* 4c1d0: a4ce0000 */ sh $t6,0x0($a2)
/* 4c1d4: 94af0000 */ lhu $t7,0x0($a1)
/* 4c1d8: 9562fff8 */ lhu $v0,-0x8($t3)
/* 4c1dc: 01e2c021 */ addu $t8,$t7,$v0
/* 4c1e0: a4b80000 */ sh $t8,0x0($a1)
/* 4c1e4: 94d90000 */ lhu $t9,0x0($a2)
/* 4c1e8: 00406827 */ nor $t5,$v0,$zero
/* 4c1ec: 032d7021 */ addu $t6,$t9,$t5
/* 4c1f0: 1464ffdb */ bne $v1,$a0,.L0004c160
/* 4c1f4: a4ce0000 */ sh $t6,0x0($a2)
/* 4c1f8: 03e00008 */ jr $ra
/* 4c1fc: 00001025 */ or $v0,$zero,$zero
);
s32 __osIdCheckSum(u16 *ptr, u16 *csum, u16 *icsum)
{
u16 data = 0;
u32 i;
*csum = *icsum = 0;
for (i = 0; i < ((sizeof(__OSPackId) - sizeof(u32)) / sizeof(u8)); i += 2) {
data = *(u16 *)((u32)ptr + i);
*csum += data;
*icsum += ~data;
}
return 0;
}
GLOBAL_ASM(
glabel __osRepairPackId