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nonmatching sub_800F638

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This commit is contained in:
PikalaxALT
2018-01-18 19:23:12 -05:00
parent 68e9b5719c
commit 58def21c62
3 changed files with 127 additions and 96 deletions
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src/link_rfu.c
+125
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@@ -3191,3 +3191,128 @@ bool32 sub_800F4F0(void)
}
return sub_800F0B8();
}
#ifdef NONMATCHING
void sub_800F638(u8 unused, u32 flags)
{
int i;
int j;
u8 *r10 = gUnknown_03005000.unk_6c.unk_04;
for (i = 0; i < gUnknown_03005000.unk_6c.unk_02; i++)
{
if (!(flags & 1))
{
gUnknown_03000D90[0] = (~0x76ff) | i;
for (j = 0; j < 7; j++)
{
gUnknown_03000D90[j + 1] = (r10[12 * i + (j << 1) + 1] << 8) | r10[12 * i + (j << 1) + 0];
}
for (j = 0; j < 7; j++)
// This should be an ascending loop.
// GCC compiles this as descending.
{
gUnknown_03000D80[2 * j + 1] = gUnknown_03000D90[j] >> 8;
gUnknown_03000D80[2 * j + 0] = gUnknown_03000D90[j];
}
sub_800D888(&gUnknown_03005000.unk_9e8, gUnknown_03000D80);
gUnknown_03005000.unk_6c.unk_0c |= (1 << i);
}
flags >>= 1;
}
}
#else
__attribute__((naked)) void sub_800F638(u8 unused, u32 flags)
{
asm_unified("\tpush {r4-r7,lr}\n"
"\tmov r7, r10\n"
"\tmov r6, r9\n"
"\tmov r5, r8\n"
"\tpush {r5-r7}\n"
"\tldr r0, =gUnknown_03005000\n"
"\tldr r2, [r0, 0x70]\n"
"\tmov r10, r2\n"
"\tmovs r5, 0\n"
"\tadds r2, r0, 0\n"
"\tadds r2, 0x6E\n"
"\tldrh r3, [r2]\n"
"\tcmp r5, r3\n"
"\tbge _0800F6D4\n"
"\tmov r9, r0\n"
"\tldr r0, =gUnknown_03000D90\n"
"\tmov r8, r0\n"
"_0800F65A:\n"
"\tmovs r0, 0x1\n"
"\tands r0, r1\n"
"\tlsrs r7, r1, 1\n"
"\tadds r6, r5, 0x1\n"
"\tcmp r0, 0\n"
"\tbne _0800F6C8\n"
"\tldr r1, =0xffff8900\n"
"\tadds r0, r1, 0\n"
"\tadds r1, r5, 0\n"
"\torrs r1, r0\n"
"\tmov r2, r8\n"
"\tstrh r1, [r2]\n"
"\tmovs r4, 0\n"
"\tlsls r0, r5, 1\n"
"\tldr r3, =gUnknown_03000D80\n"
"\tmov r12, r3\n"
"\tadds r0, r5\n"
"\tlsls r0, 2\n"
"\tmov r1, r10\n"
"\tadds r2, r0, r1\n"
"\tmov r3, r8\n"
"\tadds r3, 0x2\n"
"_0800F686:\n"
"\tldrb r1, [r2, 0x1]\n"
"\tlsls r1, 8\n"
"\tldrb r0, [r2]\n"
"\torrs r0, r1\n"
"\tstrh r0, [r3]\n"
"\tadds r2, 0x2\n"
"\tadds r3, 0x2\n"
"\tadds r4, 0x1\n"
"\tcmp r4, 0x6\n"
"\tble _0800F686\n"
"\tmovs r4, 0\n"
"\tldr r2, =gUnknown_03000D90\n"
"\tldr r1, =gUnknown_03000D80\n"
"_0800F6A0:\n"
"\tldrh r0, [r2]\n"
"\tlsrs r0, 8\n"
"\tstrb r0, [r1, 0x1]\n"
"\tldrh r0, [r2]\n"
"\tstrb r0, [r1]\n"
"\tadds r2, 0x2\n"
"\tadds r1, 0x2\n"
"\tadds r4, 0x1\n"
"\tcmp r4, 0x6\n"
"\tble _0800F6A0\n"
"\tldr r0, =gUnknown_03005000+0x9E8\n"
"\tmov r1, r12\n"
"\tbl sub_800D888\n"
"\tmovs r1, 0x1\n"
"\tlsls r1, r5\n"
"\tmov r2, r9\n"
"\tldr r0, [r2, 0x78]\n"
"\torrs r0, r1\n"
"\tstr r0, [r2, 0x78]\n"
"_0800F6C8:\n"
"\tadds r1, r7, 0\n"
"\tadds r5, r6, 0\n"
"\tldr r3, =gUnknown_03005000+0x6E\n"
"\tldrh r3, [r3]\n"
"\tcmp r5, r3\n"
"\tblt _0800F65A\n"
"_0800F6D4:\n"
"\tpop {r3-r5}\n"
"\tmov r8, r3\n"
"\tmov r9, r4\n"
"\tmov r10, r5\n"
"\tpop {r4-r7}\n"
"\tpop {r0}\n"
"\tbx r0\n"
"\t.pool");
}
#endif