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Merge pull request #292 from lioncash/backports 

Backport more skyeye fixes from 3dmoo
This commit is contained in:
bunnei 2014-12-17 20:58:00 -05:00
parent e00e303275 73211dc8fe
commit 075126247f
1 changed files with 30 additions and 19 deletions
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49
src/core/arm/interpreter/armemu.cpp
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@ -3103,12 +3103,18 @@ mainswitch:
state->Reg[idest] = (state->Reg[rfis] & 0xFFFF) | ((state->Reg[rlast] << ishi) & 0xFFFF0000);
break;
} else if ((instr & 0x70) == 0x50) { //pkhtb
u8 idest = BITS(12, 15);
u8 rfis = BITS(16, 19);
u8 rlast = BITS(0, 3);
u8 ishi = BITS(7, 11);
if (ishi == 0)ishi = 0x20;
state->Reg[idest] = (((int)(state->Reg[rlast]) >> (int)(ishi))& 0xFFFF) | ((state->Reg[rfis]) & 0xFFFF0000);
const u8 rd_idx = BITS(12, 15);
const u8 rn_idx = BITS(16, 19);
const u8 rm_idx = BITS(0, 3);
const u8 imm5 = BITS(7, 11);
ARMword val;
if (imm5 >= 32)
val = (state->Reg[rm_idx] >> 31);
else
val = (state->Reg[rm_idx] >> imm5);
state->Reg[rd_idx] = (val & 0xFFFF) | ((state->Reg[rn_idx]) & 0xFFFF0000);
break;
} else if (BIT (4)) {
#ifdef MODE32
@ -6049,7 +6055,7 @@ L_stm_s_takeabort:
break;
}
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF);
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF) | ((state->Reg[BITS(0, 3)] << (32 - ror)) & 0xFF) & 0xFF;
if (Rm & 0x80)
Rm |= 0xffffff00;
@ -6058,11 +6064,12 @@ L_stm_s_takeabort:
state->Reg[BITS(12, 15)] = Rm;
else
/* SXTAB */
state->Reg[BITS(12, 15)] += Rm;
state->Reg[BITS(12, 15)] = state->Reg[BITS(16, 19)] + Rm;
return 1;
}
case 0x6b: {
case 0x6b:
{
ARMword Rm;
int ror = -1;
@ -6080,10 +6087,10 @@ L_stm_s_takeabort:
ror = 24;
break;
case 0xf3:
case 0xf3: // REV
DEST = ((RHS & 0xFF) << 24) | ((RHS & 0xFF00)) << 8 | ((RHS & 0xFF0000) >> 8) | ((RHS & 0xFF000000) >> 24);
return 1;
case 0xfb:
case 0xfb: // REV16
DEST = ((RHS & 0xFF) << 8) | ((RHS & 0xFF00)) >> 8 | ((RHS & 0xFF0000) << 8) | ((RHS & 0xFF000000) >> 8);
return 1;
default:
@ -6093,7 +6100,7 @@ L_stm_s_takeabort:
if (ror == -1)
break;
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF);
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF) | ((state->Reg[BITS(0, 3)] << (32 - ror)) & 0xFFFF) & 0xFFFF;
if (Rm & 0x8000)
Rm |= 0xffff0000;
@ -6180,7 +6187,7 @@ L_stm_s_takeabort:
break;
}
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF);
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF) | ((state->Reg[BITS(0, 3)] << (32 - ror)) & 0xFF) & 0xFF;
if (BITS(16, 19) == 0xf)
/* UXTB */
@ -6210,9 +6217,13 @@ L_stm_s_takeabort:
ror = 24;
break;
case 0xfb:
printf("Unhandled v6 insn: revsh\n");
return 0;
case 0xfb: // REVSH
{
DEST = ((RHS & 0xFF) << 8) | ((RHS & 0xFF00) >> 8);
if (DEST & 0x8000)
DEST |= 0xffff0000;
return 1;
}
default:
break;
}
@ -6220,13 +6231,13 @@ L_stm_s_takeabort:
if (ror == -1)
break;
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF);
Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF) | ((state->Reg[BITS(0, 3)] << (32 - ror)) & 0xFFFF) & 0xFFFF;
/* UXT */
/* state->Reg[BITS (12, 15)] = Rm; */
/* dyf add */
if (BITS(16, 19) == 0xf) {
state->Reg[BITS(12, 15)] = (Rm >> (8 * BITS(10, 11))) & 0x0000FFFF;
state->Reg[BITS(12, 15)] = Rm;
}
else {
/* UXTAH */
@ -6234,7 +6245,7 @@ L_stm_s_takeabort:
// printf("rd is %x rn is %x rm is %x rotate is %x\n", state->Reg[BITS (12, 15)], state->Reg[BITS (16, 19)]
// , Rm, BITS(10, 11));
// printf("icounter is %lld\n", state->NumInstrs);
state->Reg[BITS(12, 15)] = (state->Reg[BITS(16, 19)] >> (8 * (BITS(10, 11)))) + Rm;
state->Reg[BITS(12, 15)] = state->Reg[BITS(16, 19)] + Rm;
// printf("rd is %x\n", state->Reg[BITS (12, 15)]);
// exit(-1);
}