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True Match sub_080A5F48 

matched sub_080A5F48 using typecast on Div.
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Lemeon 2024-01-21 19:17:42 +01:00 committed by GitHub
parent d8a9e54fa9
commit ba7be37093
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GPG Key ID: B5690EEEBB952194
1 changed files with 34 additions and 25 deletions
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59
src/menu/pauseMenu.c
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@ -1232,15 +1232,26 @@ bool32 sub_080A5F24(void) {
return result;
}
void sub_080A5F48(Item item, u32 param_2) {
extern u32 gSprite_082E68F4[];
u32 ammoCount;
u32 tensDigit;
u8* puVar2;
u32 temp1;
typedef union{
struct{
s32 v1;
s32 v2;
} values;
u64 raw;
} DoubleReturnValue;
void sub_080A5F48(Item item, u32 offset) {
//this funcitons signature allows the div function to return a u64 (2x 32 bit registers)
//with the result in one register and the remainder in the other
typedef u64 DivRem (u32, u32);
s32 ammoCount;
s32 onesDigit;
s32 tensDigit;
void* dest;
u16* temp2;
u32 temp3;
register u32 rem asm("r1");
u32 index;
DoubleReturnValue ret;
switch (item) {
case ITEM_BOTTLE1:
@ -1248,17 +1259,14 @@ void sub_080A5F48(Item item, u32 param_2) {
case ITEM_BOTTLE3:
case ITEM_BOTTLE4:
item = gSave.stats.bottles[item - ITEM_BOTTLE1];
break;
default:
break;
}
dest = OBJ_VRAM0 + (offset * 0x20);
index = gSpriteAnimations_322[item]->index;
temp2 = &gMoreSpritePtrs[1][index * 2];
DmaCopy32(3, &gMoreSpritePtrs[2][temp2[1] * 0x10], dest, 0x40 * 4);
temp1 = param_2 * 0x20 + 0x6010000;
temp3 = gSpriteAnimations_322[item]->index;
temp2 = &gMoreSpritePtrs[1][temp3 * 2];
DmaCopy32(3, &gMoreSpritePtrs[2][temp2[1] * 0x10], temp1, 0x40 * 4);
ammoCount = -1;
switch (item) {
case 7:
case 8:
@ -1270,15 +1278,16 @@ void sub_080A5F48(Item item, u32 param_2) {
break;
}
if (-1 < (int)ammoCount) {
tensDigit = Div(ammoCount, 10);
item = rem;
if ((int)tensDigit >= 10) {
tensDigit = 9;
}
DmaCopy32(3, gUnk_085C4620 + tensDigit * 0x8, temp1, 0x8 * 4);
DmaCopy32(3, gUnk_085C4620 + (item + 10) * 0x8, temp1 + 0x20, 0x8 * 4);
}
if (ammoCount < 0) return;
ret.raw = ((DivRem*)Div)(ammoCount,10); //by casting to DivRem, we can recover the remainder from the Div call
onesDigit = ret.values.v2;
tensDigit = ret.values.v1;
if (tensDigit >= 10) tensDigit = 9;
DmaCopy32(3, gUnk_085C4620 + tensDigit * 0x8, dest, 0x8 * 4);
DmaCopy32(3, gUnk_085C4620 + (onesDigit + 10) * 0x8, dest + 0x20, 0x8 * 4);
}
void PauseMenu_Screen_7(void) {