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Decompile pakSetBitflag

This commit is contained in:
Ryan Dwyer 2022-06-29 19:59:41 +10:00
parent 4b6b10d653
commit 00f84bc48d
2 changed files with 11 additions and 38 deletions
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47
src/game/pak.c
View File

@ -8614,44 +8614,17 @@ PakErr1 pakWriteEeprom(u8 address, u8 *buffer, u32 len)
return result == PAK_ERR1_OK ? PAK_ERR1_OK : PAK_ERR1_EEPROMWRITEFAILED;
}
GLOBAL_ASM(
glabel pakSetBitflag
/* f11e530: 10c0000a */ beqz $a2,.L0f11e55c
/* f11e534: 000458c2 */ srl $t3,$a0,0x3
/* f11e538: 000470c2 */ srl $t6,$a0,0x3
/* f11e53c: 00ae1021 */ addu $v0,$a1,$t6
/* f11e540: 904f0000 */ lbu $t7,0x0($v0)
/* f11e544: 30980007 */ andi $t8,$a0,0x7
/* f11e548: 24190001 */ addiu $t9,$zero,0x1
/* f11e54c: 03194804 */ sllv $t1,$t9,$t8
/* f11e550: 01e95025 */ or $t2,$t7,$t1
/* f11e554: 03e00008 */ jr $ra
/* f11e558: a04a0000 */ sb $t2,0x0($v0)
.L0f11e55c:
/* f11e55c: 00ab1021 */ addu $v0,$a1,$t3
/* f11e560: 904c0000 */ lbu $t4,0x0($v0)
/* f11e564: 308d0007 */ andi $t5,$a0,0x7
/* f11e568: 240e0001 */ addiu $t6,$zero,0x1
/* f11e56c: 01aec004 */ sllv $t8,$t6,$t5
/* f11e570: 03007827 */ nor $t7,$t8,$zero
/* f11e574: 018f4824 */ and $t1,$t4,$t7
/* f11e578: a0490000 */ sb $t1,0x0($v0)
/* f11e57c: 03e00008 */ jr $ra
/* f11e580: 00000000 */ sll $zero,$zero,0x0
);
void pakSetBitflag(u32 flagnum, u8 *bitstream, bool set)
{
u32 byteindex = flagnum / 8;
u8 mask = 1 << (flagnum % 8);
// Mismatch: regalloc
//void pakSetBitflag(u32 flagnum, u8 *bitstream, bool set)
//{
// u32 byteindex = flagnum / 8;
// u8 mask = 1 << (flagnum % 8);
//
// if (set) {
// bitstream[byteindex] |= mask;
// } else {
// bitstream[byteindex] &= ~mask;
// }
//}
if (set) {
bitstream[byteindex] |= mask;
} else {
bitstream[byteindex] &= (u8)~mask;
}
}
bool pakHasBitflag(u32 flagnum, u8 *bitstream)
{

2
src/include/game/pak.h
View File

@ -139,7 +139,7 @@ void pak0f11e3bc(s8 device);
void pakProbeEeprom(void);
PakErr1 pakReadEeprom(u8 address, u8 *buffer, u32 len);
PakErr1 pakWriteEeprom(u8 address, u8 *buffer, u32 len);
void pakSetBitflag(s32 flagnum, u8 *bitstream, bool set);
void pakSetBitflag(u32 flagnum, u8 *bitstream, bool set);
bool pakHasBitflag(u32 flagnum, u8 *stream);
void pakClearAllBitflags(u8 *flags);
void pakN64FontCodeToAscii(char *src, char *dst, s32 len);