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sub_08152E40

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This commit is contained in:
jiangzhengwenjz 2020-05-05 20:36:58 +08:00
parent 18d2ffcb35
commit 5c3072f7a5
3 changed files with 42 additions and 73 deletions
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69
asm/code_08152DD8.s
View File

@ -5,75 +5,6 @@
.text
thumb_func_start sub_08152E40
sub_08152E40: @ 0x08152E40
push {r4, r5, lr}
adds r2, r0, #0
subs r2, #4
ldr r1, _08152EB8 @ =gUnk_03003A20
adds r3, r1, #0
cmp r2, r1
beq _08152E5C
movs r4, #0xc0
lsls r4, r4, #0x12
_08152E52:
adds r1, r3, #0
ldrh r0, [r1]
adds r3, r0, r4
cmp r2, r3
bne _08152E52
_08152E5C:
ldrh r4, [r2, #2]
movs r5, #2
ldrsh r0, [r2, r5]
cmp r0, #0
bge _08152E6A
rsbs r0, r4, #0
strh r0, [r2, #2]
_08152E6A:
movs r4, #2
ldrsh r0, [r1, r4]
adds r0, r1, r0
cmp r0, r2
bne _08152E8A
ldrh r4, [r1, #2]
movs r5, #2
ldrsh r0, [r1, r5]
cmp r0, #0
ble _08152E8A
ldrh r0, [r3]
strh r0, [r1]
ldrh r0, [r2, #2]
adds r0, r4, r0
strh r0, [r1, #2]
adds r2, r1, #0
_08152E8A:
movs r1, #2
ldrsh r0, [r2, r1]
adds r3, r2, r0
ldrh r0, [r2]
movs r1, #0xc0
lsls r1, r1, #0x12
adds r0, r0, r1
cmp r3, r0
bne _08152EB0
ldrh r1, [r3, #2]
movs r4, #2
ldrsh r0, [r3, r4]
cmp r0, #0
ble _08152EB0
ldrh r5, [r2, #2]
adds r0, r1, r5
strh r0, [r2, #2]
ldrh r0, [r3]
strh r0, [r2]
_08152EB0:
pop {r4, r5}
pop {r0}
bx r0
.align 2, 0
_08152EB8: .4byte gUnk_03003A20
thumb_func_start sub_08152EBC
sub_08152EBC: @ 0x08152EBC
push {r4, r5, r6, r7, lr}

4
include/game_state.h
View File

@ -39,11 +39,11 @@ extern struct Unk_03003A20 gUnk_03003A20[];
extern u8 gUnk_030068D4;
extern u32 gUnk_03006CC4;
extern void sub_081590EC(u32*);
extern void sub_08152E40(u8*);
extern void sub_08152E40(struct Unk_03003A20* arg0);
extern struct GameState* sub_08152F88(void);
extern void nullsub_143(void);
extern void nullsub_144(void);
extern void nullsub_145(void);
extern void sub_081590EC(u32*);
#endif

42
src/game_state.c
View File

@ -158,7 +158,7 @@ void sub_08152C3C(struct GameState* arg0) {
sub_081590EC(arg0->unk6 + (u32*)EWRAM_START);
}
else {
sub_08152E40(arg0->unk6 + (u8*)IWRAM_START);
sub_08152E40(arg0->unk6 + (void*)IWRAM_START);
}
}
@ -246,5 +246,43 @@ struct Unk_03003A20* sub_08152DD8(u16 arg0) {
return NULL;
}
r3 = (struct Unk_03003A20*)(r3->unk0 + IWRAM_START);
} while(1);
} while (1);
}
void sub_08152E40(struct Unk_03003A20* arg0) {
struct Unk_03003A20* r2 = arg0, *r3;
#ifndef NONMATCHING
register struct Unk_03003A20* r1 asm("r1");
#else
struct Unk_03003A20* r1;
#endif
r2 -= 1;
r1 = gUnk_03003A20;
r3 = r1;
if (r2 != r1) {
do {
r1 = r3;
r3 = (struct Unk_03003A20*)(IWRAM_START + r1->unk0);
} while (r2 != r3);
}
if (r2->unk2 < 0) {
r2->unk2 = -r2->unk2;
}
if ((struct Unk_03003A20*)(r1->unk2 + (u8*)r1) == r2) {
u16 r4 = r1->unk2; // not actual code. only for handling side effect of inline asm
if (r1->unk2 > 0) {
r1->unk0 = r3->unk0;
r1->unk2 = r4 + r2->unk2;
r2 = r1;
}
}
r3 = (struct Unk_03003A20*)((u8*)r2 + r2->unk2);
if (r3 == (struct Unk_03003A20*)(IWRAM_START + r2->unk0)) {
if (r3->unk2 > 0) {
r2->unk2 += r3->unk2;
r2->unk0 = r3->unk0;
}
}
}