diff options
Diffstat (limited to 'src/pokenav_before.c')
| -rw-r--r-- | src/pokenav_before.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/pokenav_before.c b/src/pokenav_before.c index b027f2a1d..e3ea0dcc4 100644 --- a/src/pokenav_before.c +++ b/src/pokenav_before.c @@ -2930,3 +2930,67 @@ bool8 sub_80EEE54() { gUnknown_083DFEC4->unkD160++; return 1; } + +#if 0 +// not matches because of register differences +bool8 sub_80EEF34() { + bool8 ret = 0x1; + if ((s8)gUnknown_083DFEC4->unk030C == 0x20) { + return 0; + } + else { + gUnknown_083DFEC4->unk030C += 2; + if (gUnknown_083DFEC4->unk030C > 0x1F) { + gUnknown_083DFEC4->unk030C = 0x20; + ret = 0; + } + REG_BG1VOFS = gUnknown_083DFEC4->unk030C; + return ret; + } +} +#else +__attribute__((naked)) +bool8 sub_80EEF34() { + asm(".text\n" + ".include \"constants/gba_constants.inc\""); + + asm_unified( + "push {r4,lr}\n\ + movs r3, 0x1\n\ + ldr r0, _080EEF50 @ =gUnknown_083DFEC4\n\ + ldr r0, [r0]\n\ + movs r1, 0xC3\n\ + lsls r1, 2\n\ + adds r2, r0, r1\n\ + ldrh r1, [r2]\n\ + movs r4, 0\n\ + ldrsh r0, [r2, r4]\n\ + cmp r0, 0x20\n\ + bne _080EEF54\n\ + movs r0, 0\n\ + b _080EEF6E\n\ + .align 2, 0\n\ +_080EEF50: .4byte gUnknown_083DFEC4\n\ +_080EEF54:\n\ + adds r0, r1, 0x2\n\ + strh r0, [r2]\n\ + lsls r0, 16\n\ + asrs r0, 16\n\ + cmp r0, 0x1F\n\ + ble _080EEF66\n\ + movs r0, 0x20\n\ + strh r0, [r2]\n\ + movs r3, 0\n\ +_080EEF66:\n\ + ldr r1, _080EEF74 @ =REG_BG1VOFS\n\ + ldrh r0, [r2]\n\ + strh r0, [r1]\n\ + adds r0, r3, 0\n\ +_080EEF6E:\n\ + pop {r4}\n\ + pop {r1}\n\ + bx r1\n\ + .align 2, 0\n\ +_080EEF74: .4byte REG_BG1VOFS"); +} +#endif |