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Decompiled two difficult functions

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Had do use a lot of `asm` directives for sub_81C8A28 to match.
This commit is contained in:
Phlosioneer
2019-03-16 00:34:11 -04:00
parent 8cea949e6d
commit bdc6ed1a98
2 changed files with 136 additions and 258 deletions
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src/pokenav.c
+136 -4
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@@ -179,12 +179,16 @@ extern u32 sub_81C91AC(struct UnknownSubStruct_81C81D4 *a0, const void *a1, void
extern u32 sub_81C9160(struct UnknownSubSubStruct_81C81D4 *a0, void *a1);
extern void sub_81C8ED0(void);
extern void sub_81C8EF8(struct UnknownSubSubStruct_81C81D4 *a0, struct UnknownSubSubStruct_0203CF40 *a1);
extern u32 sub_81C8958(s32 a0);
extern u32 sub_81C8A28(s32 a0);
extern void sub_81C8B70(struct UnknownSubSubStruct_0203CF40 *a0, u32 a1, u32 a2);
extern void sub_81C9008(struct UnknownSubStruct_81C81D4 *a0, u32 a1);
extern void sub_81C9008(struct UnknownSubSubStruct_0203CF40 *a0, u32 a1);
extern void sub_81C7CB4(struct Sprite* sprite);
extern void sub_81C8CB4(struct UnknownSubSubStruct_81C81D4 *a0, struct UnknownSubSubStruct_0203CF40 *a1);
extern void sub_81C8DBC(struct UnknownSubSubStruct_0203CF40 *a0, u32 a1);
extern void sub_81C8E54(struct UnknownSubSubStruct_81C81D4 *a0, struct UnknownSubSubStruct_0203CF40 *a1, u32 a2);
extern void sub_81C8D4C(struct UnknownSubSubStruct_81C81D4 *a0, struct UnknownSubSubStruct_0203CF40 *a1);
u32 sub_81C8A28(s32 a0);
u32 sub_81C8958(s32 a0);
u32 sub_81C8870(s32 a0);
u32 sub_81C85A0(s32 a0);
void sub_81C8568(s32 a0, struct UnknownSubStruct_81C81D4 *a1);
@@ -2233,7 +2237,7 @@ u32 sub_81C8870(s32 a0)
switch (a0)
{
case 0:
sub_81C9008(structPtr, 1);
sub_81C9008(&structPtr->unk0, 1);
// fall-through
case 1:
if (structPtr->unk89C != structPtr->unk888.unk6)
@@ -2272,4 +2276,132 @@ u32 sub_81C8870(s32 a0)
default:
return 4;
}
}
u32 sub_81C8958(s32 a0)
{
struct UnknownSubStruct_81C81D4 *structPtr;
structPtr = GetSubstructPtr(0x11);
if (IsDma3ManagerBusyWithBgCopy())
return 2;
switch (a0)
{
case 0:
sub_81C8CB4(&structPtr->unk888, &structPtr->unk0);
break;
case 1:
sub_81C8DBC(&structPtr->unk0, 0);
break;
case 2:
sub_81C8E54(&structPtr->unk888, &structPtr->unk0, 0);
break;
case 3:
sub_81C8DBC(&structPtr->unk0, 1);
break;
case 4:
sub_81C8E54(&structPtr->unk888, &structPtr->unk0, 1);
break;
case 5:
sub_81C8DBC(&structPtr->unk0, 2);
break;
case 6:
sub_81C8E54(&structPtr->unk888, &structPtr->unk0, 2);
break;
case 7:
sub_81C8E54(&structPtr->unk888, &structPtr->unk0, 3);
break;
default:
return 4;
}
return 0;
}
u32 sub_81C8A28(s32 a0)
{
struct UnknownSubStruct_81C81D4 *structPtr;
struct UnknownSubSubStruct_81C81D4 *subPtr888;
register struct UnknownSubSubStruct_0203CF40 *subPtr0 asm("r2");
s32 v4;
if (IsDma3ManagerBusyWithBgCopy())
{
return 2;
}
structPtr = GetSubstructPtr(0x11);
subPtr888 = &structPtr->unk888;
subPtr0 = &structPtr->unk0;
switch (a0)
{
default:
return 4;
case 0:
sub_81C8D4C(subPtr888, subPtr0);
return 0;
case 1:
{
s32 v1;
s32 v2;
u32 *v3;
register s32 v4 asm("r5");
v3 = &structPtr->unk89C;
v1 = *v3 + 1;
*v3 = v1;
if (v1 < structPtr->unk888.unk8)
{
sub_81C8B70(subPtr0, v1, 1);
return 2;
}
*v3 = 0;
if (subPtr888->unk2 <= subPtr888->unk8)
{
register u32 temp asm("r0");
temp = subPtr888->unk0;
if (temp == 0)
return 9;
v2 = temp;
}
else
{
register s32 temp asm("r1");
v2 = subPtr888->unk0 + subPtr888->unk8;
temp = (s32)subPtr888->unk2;
if (v2 <= temp)
return 9;
v2 -= temp;
}
v4 = v2 * -1;
sub_81C8B70(subPtr0, v4, v2);
subPtr888->unk6 = v2;
*v3 = v4;
return 0;
}
case 2:
sub_81C84E8(structPtr->unk89C, 0);
return 0;
case 3:
if (sub_81C8630())
return 2;
structPtr->unk89C = 0;
return 1;
case 4:
sub_81C83AC(subPtr888->unk10, subPtr888->unk0 + structPtr->unk89C, 1, subPtr888->unkC, structPtr->unk89C, structPtr);
return 0;
case 5:
if (sub_81C83E0())
return 2;
v4 = ++structPtr->unk89C;
if (v4 >= subPtr888->unk2 || v4 >= subPtr888->unk8)
return 1;
return 9;
case 6:
sub_81C9008(subPtr0, 0);
return 4;
}
}