mirror of
https://github.com/yuzu-emu/yuzu-android.git
synced 2024-12-03 20:14:18 +01:00
Merge pull request #311 from lioncash/usada
armemu: Implement USAD8 and USADA8
This commit is contained in:
commit
7095c4959b
@ -6374,7 +6374,30 @@ L_stm_s_takeabort:
|
|||||||
printf ("Unhandled v6 insn: smmla/smmls/smmul\n");
|
printf ("Unhandled v6 insn: smmla/smmls/smmul\n");
|
||||||
break;
|
break;
|
||||||
case 0x78:
|
case 0x78:
|
||||||
printf ("Unhandled v6 insn: usad/usada8\n");
|
if (BITS(20, 24) == 0x18)
|
||||||
|
{
|
||||||
|
const u8 rm_idx = BITS(8, 11);
|
||||||
|
const u8 rn_idx = BITS(0, 3);
|
||||||
|
const u8 rd_idx = BITS(16, 19);
|
||||||
|
|
||||||
|
const u32 rm_val = state->Reg[rm_idx];
|
||||||
|
const u32 rn_val = state->Reg[rn_idx];
|
||||||
|
|
||||||
|
const u8 diff1 = (u8)::abs((rn_val & 0xFF) - (rm_val & 0xFF));
|
||||||
|
const u8 diff2 = (u8)::abs(((rn_val >> 8) & 0xFF) - ((rm_val >> 8) & 0xFF));
|
||||||
|
const u8 diff3 = (u8)::abs(((rn_val >> 16) & 0xFF) - ((rm_val >> 16) & 0xFF));
|
||||||
|
const u8 diff4 = (u8)::abs(((rn_val >> 24) & 0xFF) - ((rm_val >> 24) & 0xFF));
|
||||||
|
|
||||||
|
u32 finalDif = (diff1 + diff2 + diff3 + diff4);
|
||||||
|
|
||||||
|
// Op is USADA8 if true.
|
||||||
|
const u8 ra_idx = BITS(12, 15);
|
||||||
|
if (ra_idx != 15)
|
||||||
|
finalDif += state->Reg[ra_idx];
|
||||||
|
|
||||||
|
state->Reg[rd_idx] = finalDif;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
case 0x7a:
|
case 0x7a:
|
||||||
printf ("Unhandled v6 insn: usbfx\n");
|
printf ("Unhandled v6 insn: usbfx\n");
|
||||||
|
Loading…
Reference in New Issue
Block a user