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Math unk_68168 in pause_screen.c

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Bolu 2024-02-20 13:51:38 +01:00
parent 45adfc35b4
commit 7fcffe4a57
2 changed files with 13 additions and 67 deletions
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2
include/menus/pause_screen.h
View File

@ -5,7 +5,7 @@
#include "structs/menu.h"
#include "structs/cutscene.h"
u32 unk_68168(u16 param_1, u8 param_2, u32 param_3);
u32 unk_68168(u16 param_1, u8 param_2, s8 param_3);
u8 unk_681c8(void);
u32 PauseScreenUpdateOrStartFading(u8 stage);
void PauseScreenCopyPalramToEwram_Unused(u8 param_1);

78
src/menus/pause_screen.c
View File

@ -32,23 +32,26 @@
#include "structs/game_state.h"
#include "structs/text.h"
#ifdef NON_MATCHING
u32 unk_68168(u16 param_1, u8 param_2, u32 param_3)
/**
* @brief 68168 | 60 | To document
*
* TODO: document params and return
*/
u32 unk_68168(u16 param_1, u8 param_2, s8 param_3)
{
// https://decomp.me/scratch/7coJ2
s32 _param_3 = (s8)param_3;
s32 _param_3 = param_3;
u32 _uselessVarForMatching = !sNonGameplayRamPointer;
if (!PAUSE_SCREEN_DATA.unk_7C && param_2 != 0)
{
PAUSE_SCREEN_DATA.unk_7C++;
PAUSE_SCREEN_DATA.unk_7D = param_2;
PAUSE_SCREEN_DATA.unk_7F = _param_3;
PAUSE_SCREEN_DATA.unk_80 = (param_1 >> 0) & 0x1F;
PAUSE_SCREEN_DATA.unk_81 = (param_1 >> 8) & 0x1F;
PAUSE_SCREEN_DATA.unk_80 = 0x1F & param_1;
PAUSE_SCREEN_DATA.unk_81 = _uselessVarForMatching = (param_1 >> 8) & 0x1F;
PAUSE_SCREEN_DATA.unk_7E = 0;
return TRUE;
@ -56,63 +59,6 @@ u32 unk_68168(u16 param_1, u8 param_2, u32 param_3)
return FALSE;
}
#else
NAKED_FUNCTION
u32 unk_68168(u16 param_1, u8 param_2, u32 param_3)
{
asm(" \n\
push {r4, r5, r6, r7, lr} \n\
lsl r7, r0, #0x10 \n\
lsr r4, r7, #0x10 \n\
lsl r1, r1, #0x18 \n\
lsr r1, r1, #0x18 \n\
lsl r2, r2, #0x18 \n\
asr r2, r2, #0x18 \n\
ldr r5, lbl_080681bc @ =sNonGameplayRamPointer \n\
ldr r0, [r5] \n\
add r3, r0, #0 \n\
add r3, #0x7c \n\
ldrb r0, [r3] \n\
add r6, r0, #0 \n\
cmp r6, #0 \n\
bne lbl_080681c0 \n\
cmp r1, #0 \n\
beq lbl_080681c0 \n\
add r0, #1 \n\
strb r0, [r3] \n\
ldr r0, [r5] \n\
add r0, #0x7d \n\
strb r1, [r0] \n\
ldr r0, [r5] \n\
add r0, #0x7f \n\
strb r2, [r0] \n\
ldr r0, [r5] \n\
movs r1, #0x1f \n\
and r4, r1 \n\
add r0, #0x80 \n\
strb r4, [r0] \n\
ldr r2, [r5] \n\
lsr r0, r7, #0x18 \n\
movs r1, #0x1f \n\
and r0, r1 \n\
add r2, #0x81 \n\
strb r0, [r2] \n\
ldr r0, [r5] \n\
add r0, #0x7e \n\
strb r6, [r0] \n\
movs r0, #1 \n\
b lbl_080681c2 \n\
.align 2, 0 \n\
lbl_080681bc: .4byte sNonGameplayRamPointer \n\
lbl_080681c0: \n\
movs r0, #0 \n\
lbl_080681c2: \n\
pop {r4, r5, r6, r7} \n\
pop {r1} \n\
bx r1 \n\
");
}
#endif
/**
* @brief 681c8 | 124 | To document