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Decompile func0f11668c

This commit is contained in:
Ryan Dwyer 2020-11-15 18:51:50 +10:00
parent dc3df1b78a
commit c87bf6c766
3 changed files with 18 additions and 44 deletions
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58
src/game/pak/pak.c
View File

@ -157,48 +157,22 @@ u32 func0f116684(u32 arg0)
return arg0 - 16;
}
GLOBAL_ASM(
glabel func0f11668c
/* f11668c: 27bdffe0 */ addiu $sp,$sp,-32
/* f116690: afa40020 */ sw $a0,0x20($sp)
/* f116694: 00047600 */ sll $t6,$a0,0x18
/* f116698: 000e2603 */ sra $a0,$t6,0x18
/* f11669c: 24010004 */ addiu $at,$zero,0x4
/* f1166a0: 14810003 */ bne $a0,$at,.L0f1166b0
/* f1166a4: afbf0014 */ sw $ra,0x14($sp)
/* f1166a8: 10000019 */ beqz $zero,.L0f116710
/* f1166ac: 24020baa */ addiu $v0,$zero,0xbaa
.L0f1166b0:
/* f1166b0: 0004c080 */ sll $t8,$a0,0x2
/* f1166b4: 0304c023 */ subu $t8,$t8,$a0
/* f1166b8: 0018c080 */ sll $t8,$t8,0x2
/* f1166bc: 0304c023 */ subu $t8,$t8,$a0
/* f1166c0: 0018c080 */ sll $t8,$t8,0x2
/* f1166c4: 0304c021 */ addu $t8,$t8,$a0
/* f1166c8: 0018c080 */ sll $t8,$t8,0x2
/* f1166cc: 0304c023 */ subu $t8,$t8,$a0
/* f1166d0: 0018c080 */ sll $t8,$t8,0x2
/* f1166d4: 3c19800a */ lui $t9,%hi(var800a2380+0x2c8)
/* f1166d8: 0338c821 */ addu $t9,$t9,$t8
/* f1166dc: 8f392648 */ lw $t9,%lo(var800a2380+0x2c8)($t9)
/* f1166e0: 0c004b70 */ jal random
/* f1166e4: afb9001c */ sw $t9,0x1c($sp)
/* f1166e8: 240101f0 */ addiu $at,$zero,0x1f0
/* f1166ec: 0041001b */ divu $zero,$v0,$at
/* f1166f0: 00004010 */ mfhi $t0
/* f1166f4: 25090010 */ addiu $t1,$t0,0x10
/* f1166f8: 0c012144 */ jal osGetCount
/* f1166fc: afa90018 */ sw $t1,0x18($sp)
/* f116700: 8faa001c */ lw $t2,0x1c($sp)
/* f116704: 8fab0018 */ lw $t3,0x18($sp)
/* f116708: 014b6026 */ xor $t4,$t2,$t3
/* f11670c: 01821026 */ xor $v0,$t4,$v0
.L0f116710:
/* f116710: 8fbf0014 */ lw $ra,0x14($sp)
/* f116714: 27bd0020 */ addiu $sp,$sp,0x20
/* f116718: 03e00008 */ jr $ra
/* f11671c: 00000000 */ sll $zero,$zero,0x0
);
u32 func0f11668c(s8 device)
{
s32 value;
s32 rand;
s32 count;
if (device == SAVEDEVICE_GAMEPAK) {
return 0xbaa;
}
value = var800a2380[device].unk2c8;
rand = (random() % 496) + 16; // range 16-511
count = osGetCount();
return value ^ rand ^ count;
}
bool pakIsConnected(s8 device)
{

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

@ -7,7 +7,7 @@ u32 func0f1165d0(s8 device, OSPfsState *note);
u32 func0f1165f8(void);
u32 func0f116658(s8 arg0, u32 arg1);
u32 func0f116684(u32 arg0);
u32 func0f11668c(void);
u32 func0f11668c(s8 device);
bool pakIsConnected(s8 device);
s32 func0f1167b0(s8 device, u32 arg1, u32 *buffer1024);
u32 func0f1167d8(s8 arg0);

2
src/include/types.h
View File

@ -5118,7 +5118,7 @@ struct var800a2380 {
/*0x014*/ u8 unk014;
/*0x018*/ struct pakdata pakdata;
/*0x25c*/ u32 unk25c;
/*0x260*/ u16 unk260;
/*0x260*/ u16 unk260; // uuid?
/*0x262*/ u16 unk262;
/*0x264*/ u32 unk264;
/*0x268*/ u32 unk268;