notsoyuzu
/
yuzu-android
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: Merged additional ARMv6 instructions implemented by 3dmoo.

This commit is contained in:
bunnei 2014-10-29 22:37:25 -04:00
parent bc6989b075
commit 0832cf7cd7
1 changed files with 234 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

268
src/core/arm/interpreter/armemu.cpp
View File

@ -63,13 +63,6 @@ static unsigned MultiplyAdd64 (ARMul_State *, ARMword, int, int);
static void Handle_Load_Double (ARMul_State *, ARMword); static void Handle_Load_Double (ARMul_State *, ARMword);
static void Handle_Store_Double (ARMul_State *, ARMword); static void Handle_Store_Double (ARMul_State *, ARMword);
void
XScale_set_fsr_far (ARMul_State * state, ARMword fsr, ARMword _far);
int
XScale_debug_moe (ARMul_State * state, int moe);
unsigned xscale_cp15_cp_access_allowed (ARMul_State * state, unsigned reg,
unsigned cpnum);
static int static int
handle_v6_insn (ARMul_State * state, ARMword instr); handle_v6_insn (ARMul_State * state, ARMword instr);
@ -538,6 +531,7 @@ ARMul_Emulate26 (ARMul_State * state)
state->AbortAddr = 1; state->AbortAddr = 1;
instr = ARMul_LoadInstrN (state, pc, isize); instr = ARMul_LoadInstrN (state, pc, isize);
//chy 2006-04-12, for ICE debug //chy 2006-04-12, for ICE debug
have_bp=ARMul_ICE_debug(state,instr,pc); have_bp=ARMul_ICE_debug(state,instr,pc);
#if 0 #if 0
@ -562,6 +556,7 @@ ARMul_Emulate26 (ARMul_State * state)
} }
printf("\n"); printf("\n");
#endif #endif
instr = ARMul_LoadInstrN (state, pc, isize); instr = ARMul_LoadInstrN (state, pc, isize);
state->last_instr = state->CurrInstr; state->last_instr = state->CurrInstr;
state->CurrInstr = instr; state->CurrInstr = instr;
@ -953,8 +948,7 @@ ARMul_Emulate26 (ARMul_State * state)
/* ARM instruction available. */ /* ARM instruction available. */
//printf("t decode %04lx -> %08lx\n", instr & 0xffff, armOp); //printf("t decode %04lx -> %08lx\n", instr & 0xffff, armOp);
if (armOp == 0xDEADC0DE) if (armOp == 0xDEADC0DE) {
{
DEBUG("Failed to decode thumb opcode %04X at %08X\n", instr, pc); DEBUG("Failed to decode thumb opcode %04X at %08X\n", instr, pc);
} }
@ -967,7 +961,6 @@ ARMul_Emulate26 (ARMul_State * state)
} }
} }
#endif #endif
/* Check the condition codes. */ /* Check the condition codes. */
if ((temp = TOPBITS (28)) == AL) { if ((temp = TOPBITS (28)) == AL) {
/* Vile deed in the need for speed. */ /* Vile deed in the need for speed. */
@ -1124,6 +1117,7 @@ ARMul_Emulate26 (ARMul_State * state)
//chy 2003-08-24 now #if 0 .... #endif process cp14, cp15.reg14, I disable it... //chy 2003-08-24 now #if 0 .... #endif process cp14, cp15.reg14, I disable it...
/* Actual execution of instructions begins here. */ /* Actual execution of instructions begins here. */
/* If the condition codes don't match, stop here. */ /* If the condition codes don't match, stop here. */
if (temp) { if (temp) {
@ -2308,12 +2302,9 @@ mainswitch:
if (state->Aborted) { if (state->Aborted) {
TAKEABORT; TAKEABORT;
} }
if (enter) if (enter) {
{
state->Reg[DESTReg] = 0; state->Reg[DESTReg] = 0;
} } else {
else
{
state->Reg[DESTReg] = 1; state->Reg[DESTReg] = 1;
} }
break; break;
@ -3063,7 +3054,27 @@ mainswitch:
break; break;
case 0x68: /* Store Word, No WriteBack, Post Inc, Reg. */ case 0x68: /* Store Word, No WriteBack, Post Inc, Reg. */
if (BIT (4)) { //ichfly PKHBT PKHTB todo check this
if ((instr & 0x70) == 0x10) //pkhbt
{
u8 idest = BITS(12, 15);
u8 rfis = BITS(16, 19);
u8 rlast = BITS(0, 3);
u8 ishi = BITS(7,11);
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);
break;
}
else if (BIT (4)) {
#ifdef MODE32 #ifdef MODE32
if (state->is_v6 if (state->is_v6
&& handle_v6_insn (state, instr)) && handle_v6_insn (state, instr))
@ -3675,7 +3686,13 @@ mainswitch:
/* Co-Processor Data Transfers. */ /* Co-Processor Data Transfers. */
case 0xc4: case 0xc4:
if (state->is_v5) { if ((instr & 0x0FF00FF0) == 0xC400B10) //vmov BIT(0-3), BIT(12-15), BIT(16-20), vmov d0, r0, r0
{
state->ExtReg[BITS(0, 3) << 1] = state->Reg[BITS(12, 15)];
state->ExtReg[(BITS(0, 3) << 1) + 1] = state->Reg[BITS(16, 20)];
break;
}
else if (state->is_v5) {
/* Reading from R15 is UNPREDICTABLE. */ /* Reading from R15 is UNPREDICTABLE. */
if (BITS (12, 15) == 15 || BITS (16, 19) == 15) if (BITS (12, 15) == 15 || BITS (16, 19) == 15)
ARMul_UndefInstr (state, instr); ARMul_UndefInstr (state, instr);
@ -3695,13 +3712,21 @@ mainswitch:
break; break;
case 0xc5: case 0xc5:
if (state->is_v5) { if ((instr & 0x00000FF0) == 0xB10) //vmov BIT(12-15), BIT(16-20), BIT(0-3) vmov r0, r0, d0
{
state->Reg[BITS(12, 15)] = state->ExtReg[BITS(0, 3) << 1];
state->Reg[BITS(16, 19)] = state->ExtReg[(BITS(0, 3) << 1) + 1];
break;
}
else if (state->is_v5) {
/* Writes to R15 are UNPREDICATABLE. */ /* Writes to R15 are UNPREDICATABLE. */
if (DESTReg == 15 || LHSReg == 15) if (DESTReg == 15 || LHSReg == 15)
ARMul_UndefInstr (state, instr); ARMul_UndefInstr (state, instr);
/* Is access to the coprocessor allowed ? */ /* Is access to the coprocessor allowed ? */
else if (!CP_ACCESS_ALLOWED(state, CPNum)) else if (!CP_ACCESS_ALLOWED(state, CPNum))
ARMul_UndefInstr (state, instr); {
ARMul_UndefInstr(state, instr);
}
else { else {
/* MRRC, ARMv5TE and up */ /* MRRC, ARMv5TE and up */
ARMul_MRRC (state, instr, &DEST, &(state->Reg[LHSReg])); ARMul_MRRC (state, instr, &DEST, &(state->Reg[LHSReg]));
@ -4059,9 +4084,11 @@ TEST_EMULATE:
// continue; // continue;
else if (state->Emulate != RUN) else if (state->Emulate != RUN)
break; break;
}
while (state->NumInstrsToExecute--);
}
while (state->NumInstrsToExecute);
exit:
state->decoded = decoded; state->decoded = decoded;
state->loaded = loaded; state->loaded = loaded;
state->pc = pc; state->pc = pc;
@ -5686,12 +5713,98 @@ L_stm_s_takeabort:
case 0x3f: case 0x3f:
printf ("Unhandled v6 insn: rbit\n"); printf ("Unhandled v6 insn: rbit\n");
break; break;
#endif
case 0x61: case 0x61:
printf ("Unhandled v6 insn: sadd/ssub\n"); if ((instr & 0xFF0) == 0xf70)//ssub16
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = (a1 - a2)&0xFFFF | (((b1 - b2)&0xFFFF)<< 0x10);
return 1;
}
else if ((instr & 0xFF0) == 0xf10)//sadd16
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = (a1 + a2)&0xFFFF | (((b1 + b2)&0xFFFF)<< 0x10);
return 1;
}
else if ((instr & 0xFF0) == 0xf50)//ssax
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = (a1 - b2) & 0xFFFF | (((a2 + b1) & 0xFFFF) << 0x10);
return 1;
}
else if ((instr & 0xFF0) == 0xf30)//sasx
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = (a2 - b1) & 0xFFFF | (((a2 + b1) & 0xFFFF) << 0x10);
return 1;
}
else printf ("Unhandled v6 insn: sadd/ssub\n");
break; break;
case 0x62: case 0x62:
printf ("Unhandled v6 insn: qadd/qsub\n"); if ((instr & 0xFF0) == 0xf70)//QSUB16
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
s32 res1 = (a1 - b1);
s32 res2 = (a2 - b2);
if (res1 > 0x7FFF) res1 = 0x7FFF;
if (res2 > 0x7FFF) res2 = 0x7FFF;
if (res1 < 0x7FFF) res1 = -0x8000;
if (res2 < 0x7FFF) res2 = -0x8000;
state->Reg[tar] = (res1 & 0xFFFF) | ((res2 & 0xFFFF) << 0x10);
return 1;
}
else if ((instr & 0xFF0) == 0xf10)//QADD16
{
u8 tar = BITS(12, 15);
u8 src1 = BITS(16, 19);
u8 src2 = BITS(0, 3);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = (state->Reg[src2] & 0xFFFF);
s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
s32 res1 = (a1 + b1);
s32 res2 = (a2 + b2);
if (res1 > 0x7FFF) res1 = 0x7FFF;
if (res2 > 0x7FFF) res2 = 0x7FFF;
if (res1 < 0x7FFF) res1 = -0x8000;
if (res2 < 0x7FFF) res2 = -0x8000;
state->Reg[tar] = ((res1) & 0xFFFF) | (((res2) & 0xFFFF) << 0x10);
return 1;
}
else printf ("Unhandled v6 insn: qadd/qsub\n");
break; break;
#if 0
case 0x63: case 0x63:
printf ("Unhandled v6 insn: shadd/shsub\n"); printf ("Unhandled v6 insn: shadd/shsub\n");
break; break;
@ -5709,10 +5822,65 @@ L_stm_s_takeabort:
break; break;
#endif #endif
case 0x6c: case 0x6c:
if ((instr & 0xf03f0) == 0xf0070) //uxtb16
{
u8 src1 = BITS(0, 3);
u8 tar = BITS(12, 15);
u32 base = state->Reg[src1];
u32 shamt = BITS(9,10)* 8;
u32 in = ((base << (32 - shamt)) | (base >> shamt));
state->Reg[tar] = in & 0x00FF00FF;
return 1;
}
else
printf ("Unhandled v6 insn: uxtb16/uxtab16\n"); printf ("Unhandled v6 insn: uxtb16/uxtab16\n");
break; break;
case 0x70: case 0x70:
printf ("Unhandled v6 insn: smuad/smusd/smlad/smlsd\n"); if ((instr & 0xf0d0) == 0xf010)//smuad //ichfly
{
u8 tar = BITS(16, 19);
u8 src1 = BITS(0, 3);
u8 src2 = BITS(8, 11);
u8 swap = BIT(5);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = a1*a2 + b1*b2;
return 1;
}
else if ((instr & 0xf0d0) == 0xf050)//smusd
{
u8 tar = BITS(16, 19);
u8 src1 = BITS(0, 3);
u8 src2 = BITS(8, 11);
u8 swap = BIT(5);
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = a1*a2 - b1*b2;
return 1;
}
else if ((instr & 0xd0) == 0x10)//smlad
{
u8 tar = BITS(16, 19);
u8 src1 = BITS(0, 3);
u8 src2 = BITS(8, 11);
u8 src3 = BITS(12, 15);
u8 swap = BIT(5);
u32 a3 = state->Reg[src3];
s16 a1 = (state->Reg[src1] & 0xFFFF);
s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
state->Reg[tar] = a1*a2 + b1*b2 + a3;
return 1;
}
else printf ("Unhandled v6 insn: smuad/smusd/smlad/smlsd\n");
break; break;
case 0x74: case 0x74:
printf ("Unhandled v6 insn: smlald/smlsld\n"); printf ("Unhandled v6 insn: smlald/smlsld\n");
@ -5751,12 +5919,9 @@ L_stm_s_takeabort:
TAKEABORT; TAKEABORT;
} }
if (enter) if (enter) {
{
state->Reg[DESTReg] = 0; state->Reg[DESTReg] = 0;
} } else {
else
{
state->Reg[DESTReg] = 1; state->Reg[DESTReg] = 1;
} }
@ -5795,12 +5960,9 @@ L_stm_s_takeabort:
} }
if (enter) if (enter) {
{
state->Reg[DESTReg] = 0; state->Reg[DESTReg] = 0;
} } else {
else
{
state->Reg[DESTReg] = 1; state->Reg[DESTReg] = 1;
} }
@ -5853,8 +6015,25 @@ L_stm_s_takeabort:
case 0x01: case 0x01:
case 0xf3: case 0xf3:
printf ("Unhandled v6 insn: ssat\n"); //ichfly
return 0; //SSAT16
{
u8 tar = BITS(12,15);
u8 src = BITS(0, 3);
u8 val = BITS(16, 19) + 1;
s16 a1 = (state->Reg[src]);
s16 a2 = (state->Reg[src] >> 0x10);
s16 min = (s16)(0x8000) >> (16 - val);
s16 max = 0x7FFF >> (16 - val);
if (min > a1) a1 = min;
if (max < a1) a1 = max;
if (min > a2) a2 = min;
if (max < a2) a2 = max;
u32 temp2 = ((u32)(a2)) << 0x10;
state->Reg[tar] = (a1&0xFFFF) | (temp2);
}
return 1;
default: default:
break; break;
} }
@ -5944,8 +6123,21 @@ L_stm_s_takeabort:
case 0x01: case 0x01:
case 0xf3: case 0xf3:
printf ("Unhandled v6 insn: usat\n"); //ichfly
return 0; //USAT16
{
u8 tar = BITS(12, 15);
u8 src = BITS(0, 3);
u8 val = BITS(16, 19);
s16 a1 = (state->Reg[src]);
s16 a2 = (state->Reg[src] >> 0x10);
s16 max = 0xFFFF >> (16 - val);
if (max < a1) a1 = max;
if (max < a2) a2 = max;
u32 temp2 = ((u32)(a2)) << 0x10;
state->Reg[tar] = (a1 & 0xFFFF) | (temp2);
}
return 1;
default: default:
break; break;
} }