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Decompiled sub_81C756C

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Also discovered a constant that may be useful for future decompiling.
Comments were added in the asm that references the constant.
This commit is contained in:
Phlosioneer 2019-02-12 20:57:51 -05:00
parent 3d73f7c48c
commit 112fc47017
4 changed files with 31 additions and 59 deletions
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51
asm/pokenav.s
View File

@ -5,55 +5,6 @@
.text
thumb_func_start sub_81C756C
sub_81C756C: @ 81C756C
push {r4-r6,lr}
ldr r1, =0xfffe7960
adds r6, r0, r1
bl sub_81C75F4
ldr r5, =gUnknown_0861F3EC
lsls r0, r6, 3
subs r0, r6
lsls r4, r0, 2
adds r0, r4, r5
ldr r0, [r0]
bl _call_via_r0
cmp r0, 0
beq _081C75CC
adds r0, r5, 0
adds r0, 0x8
adds r0, r4, r0
ldr r0, [r0]
bl _call_via_r0
cmp r0, 0
beq _081C75CC
adds r0, r5, 0
adds r0, 0xC
adds r0, r4, r0
ldr r0, [r0]
adds r1, r5, 0
adds r1, 0x10
adds r1, r4, r1
ldr r1, [r1]
bl sub_81C7834
ldr r0, =gUnknown_0203CF40
ldr r1, [r0]
adds r0, r5, 0x4
adds r0, r4, r0
ldr r0, [r0]
str r0, [r1]
str r6, [r1, 0x4]
movs r0, 0x1
b _081C75CE
.pool
_081C75CC:
movs r0, 0
_081C75CE:
pop {r4-r6}
pop {r1}
bx r1
thumb_func_end sub_81C756C
thumb_func_start sub_81C75D4
sub_81C75D4: @ 81C75D4
push {lr}
@ -9441,7 +9392,7 @@ sub_81CBE50: @ 81CBE50
movs r0, 0x9
bl GetGameStat
adds r1, r0, 0
ldr r0, =0x0001869f
ldr r0, =0x0001869f @ Note to decompiler: See UNKNOWN_OFFSET
cmp r1, r0
ble _081CBE68
adds r1, r0, 0

2
asm/rom_8011DC0.s
View File

@ -27181,7 +27181,7 @@ sub_8024700: @ 8024700
adds r0, r5, 0
bl sub_8024668
adds r1, r0, r4
ldr r2, =0x0001869f
ldr r2, =0x0001869f @ Note to decompiler: See UNKNOWN_OFFSET
cmp r1, r2
bhi _08024730
adds r0, r5, 0

4
src/pokedex.c
View File

@ -4036,7 +4036,7 @@ void sub_80C0460(u16 weight, u8 left, u8 top)
lsls r2, 24\n\
lsrs r2, 24\n\
str r2, [sp, 0x10]\n\
ldr r5, =0x000186a0\n\
ldr r5, =0x000186a0 @ Note to decompiler: See UNKNOWN_OFFSET\n\
muls r0, r5\n\
ldr r1, =0x000011b8\n\
bl __divsi3\n\
@ -4070,7 +4070,7 @@ _080C04C0:\n\
mov r8, r1\n\
movs r6, 0x1\n\
_080C04C6:\n\
ldr r1, =0x000186a0\n\
ldr r1, =0x000186a0 @ Note to decompiler: See UNKNOWN_OFFSET\n\
adds r0, r7, 0\n\
bl __umodsi3\n\
adds r7, r0, 0\n\

33
src/pokenav_main.c
View File

@ -7,8 +7,10 @@
#include "palette.h"
#include "pokemon_storage_system.h"
#define UNKNOWN_OFFSET 100000
struct UnknownStruct_0203CF40 {
u32 field0;
u32 (*field0)(void);
u32 field4;
u16 field8;
u32 fieldC;
@ -17,7 +19,7 @@ struct UnknownStruct_0203CF40 {
};
struct UnknownStruct_0861F3EC {
void (*data[7])(void);
u32 (*data[7])(void);
};
extern struct UnknownStruct_0203CF40 *gUnknown_0203CF40;
@ -29,13 +31,15 @@ extern void sub_81C76C4(void);
extern void sub_81C7710(void);
extern void sub_81C7850(u32 a0);
extern void sub_81C9430(void);
extern u32 sub_81C756C(u32 a0);
extern void sub_81C75F4(void);
extern void sub_81C7834(u32 (*a0)(void), u32(*a1)(void));
extern u32 sub_81C76FC(void);
extern u32 sub_81C786C(void);
extern u32 sub_81C75E0(void);
extern u32 sub_81C75D4(void);
extern u32 sub_81C7738(void);
bool32 sub_81C756C(u32 a0);
u32 AnyMonHasRibbon(void);
void sub_81C7334(void);
void sub_81C71E4(u8 a0);
@ -220,7 +224,7 @@ void sub_81C7360(struct UnknownStruct_0203CF40 *a0) {
a0->field8 = 0;
a0->field4 = 0;
a0->fieldC = AnyMonHasRibbon();
a0->field0 = 0;
a0->field0 = NULL;
}
bool32 AnyMonHasRibbon() {
@ -278,7 +282,7 @@ void sub_81C742C(u8 taskId) {
if (sub_81C76FC()) {
break;
}
sub_81C756C(0x186a0);
sub_81C756C(UNKNOWN_OFFSET);
dataPtr[0] = 4;
break;
case 2:
@ -291,7 +295,7 @@ void sub_81C742C(u8 taskId) {
if (v1 == -1) {
sub_81C7710();
dataPtr[0] = 5;
} else if (v1 > 0x1869F) {
} else if (v1 >= UNKNOWN_OFFSET) {
gUnknown_0861F3EC[gUnknown_0203CF40->field4].data[6]();
gUnknown_0861F3EC[gUnknown_0203CF40->field4].data[5]();
if (sub_81C756C(v1)) {
@ -325,3 +329,20 @@ void sub_81C742C(u8 taskId) {
}
}
}
bool32 sub_81C756C(u32 a0) {
u32 index;
index = a0 - UNKNOWN_OFFSET;
sub_81C75F4();
if (!gUnknown_0861F3EC[index].data[0]()) {
return FALSE;
}
if (!gUnknown_0861F3EC[index].data[2]()) {
return FALSE;
}
sub_81C7834(gUnknown_0861F3EC[index].data[3], gUnknown_0861F3EC[index].data[4]);
gUnknown_0203CF40->field0 = gUnknown_0861F3EC[index].data[1];
gUnknown_0203CF40->field4 = index;
return TRUE;
}