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Match sub_81D5F58

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PokeCodec 2020-08-24 16:32:21 -04:00
parent d7e31f5a85
commit 3ddf7175bf
1 changed files with 13 additions and 60 deletions
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73
src/trainer_hill.c
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@ -356,7 +356,7 @@ static void SetUpDataStruct(void)
{ {
if (sHillData == NULL) if (sHillData == NULL)
{ {
sHillData = AllocZeroed(sizeof(*sHillData)); sHillData = AllocZeroed(sizeof(struct TrHillStruct2));
sHillData->floorId = gMapHeader.mapLayoutId - LAYOUT_TRAINER_HILL_1F; sHillData->floorId = gMapHeader.mapLayoutId - LAYOUT_TRAINER_HILL_1F;
CpuCopy32(sDataPerTag[gSaveBlock1Ptr->trainerHill.tag], &sHillData->tag, sizeof(sHillData->tag) + 4 * sizeof(struct TrHillFloor)); CpuCopy32(sDataPerTag[gSaveBlock1Ptr->trainerHill.tag], &sHillData->tag, sizeof(sHillData->tag) + 4 * sizeof(struct TrHillFloor));
nullsub_2(); nullsub_2();
@ -672,70 +672,23 @@ bool32 LoadTrainerHillFloorObjectEventScripts(void)
return TRUE; return TRUE;
} }
// Functionally equivalent.
#ifdef NONMATCHING
static u32 sub_81D5F58(u8 floorId, u32 bit, u32 arg2, u32 arg3) static u32 sub_81D5F58(u8 floorId, u32 bit, u32 arg2, u32 arg3)
{ {
u32 var0, var1, var2, var3; u16 var0, var1;
#ifndef NONMATCHING
register u16 var2 asm("r3"); //compiler keeps wanting to "mov r3, 0x80" instead of "mov r2 0x80" and then later "add r3, r2, 0"
#else
u16 var2;
#endif
u16 var3;
var0 = (sHillData->floors[floorId].display.unk3A0[arg2] >> (15 - bit)) & 1; var0 = (sHillData->floors[floorId].display.unk3A0[arg2] >> (15 - bit) & 1);
var1 = sHillData->floors[floorId].display.data[arg2 * arg3 + bit]; var1 = sHillData->floors[floorId].display.data[arg3 * arg2 + bit];
var3 = 0x200; var2 = 0x200;
var2 = 0x3000; var3 = 0x3000;
return ((var0 << 10) | var2) | (var1 | var3); return ((var0 << 10) | var3) | (var1 | var2);
} }
#else
NAKED
static u32 sub_81D5F58(u8 floorId, u32 bit, u32 arg2, u32 arg3)
{
asm_unified("\n\
push {r4,r5,lr}\n\
lsls r0, 24\n\
lsrs r0, 24\n\
ldr r4, =sHillData\n\
ldr r4, [r4]\n\
mov r12, r4\n\
lsls r4, r2, 1\n\
lsls r5, r0, 4\n\
subs r5, r0\n\
lsls r5, 3\n\
subs r5, r0\n\
lsls r5, 3\n\
adds r4, r5\n\
movs r0, 0xE8\n\
lsls r0, 2\n\
add r0, r12\n\
adds r0, r4\n\
ldrh r0, [r0]\n\
movs r4, 0xF\n\
subs r4, r1\n\
asrs r0, r4\n\
movs r4, 0x1\n\
ands r0, r4\n\
muls r2, r3\n\
adds r2, r1\n\
adds r2, r5\n\
movs r1, 0xA8\n\
lsls r1, 2\n\
add r1, r12\n\
adds r1, r2\n\
ldrb r1, [r1]\n\
movs r2, 0x80\n\
lsls r2, 2\n\
adds r3, r2, 0\n\
movs r2, 0xC0\n\
lsls r2, 6\n\
lsls r0, 10\n\
orrs r0, r2\n\
orrs r1, r3\n\
orrs r0, r1\n\
pop {r4,r5}\n\
pop {r1}\n\
bx r1\n\
.pool");
}
#endif // NONMATCHING
void GenerateTrainerHillFloorLayout(u16 *mapArg) void GenerateTrainerHillFloorLayout(u16 *mapArg)
{ {