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[AArch64] Implement three system register instructions.

This commit is contained in:
Ryan Houdek 2015-01-07 14:59:41 -06:00
parent 0dd3804cf7
commit 602702fdcb
3 changed files with 93 additions and 3 deletions
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3
Source/Core/Core/PowerPC/JitArm64/Jit.h
View File

@ -108,6 +108,9 @@ public:
void mfsrin(UGeckoInstruction inst);
void mtsrin(UGeckoInstruction inst);
void twx(UGeckoInstruction inst);
void mfspr(UGeckoInstruction inst);
void mftb(UGeckoInstruction inst);
void mtspr(UGeckoInstruction inst);
// LoadStore
void icbi(UGeckoInstruction inst);

87
Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
View File

@ -196,3 +196,90 @@ void JitArm64::twx(UGeckoInstruction inst)
WriteExit(js.compilerPC + 4);
}
}
void JitArm64::mfspr(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITSystemRegistersOff);
u32 iIndex = (inst.SPRU << 5) | (inst.SPRL & 0x1F);
switch (iIndex)
{
case SPR_XER:
case SPR_WPAR:
case SPR_DEC:
case SPR_TL:
case SPR_TU:
FALLBACK_IF(true);
default:
gpr.BindToRegister(inst.RD, false);
ARM64Reg RD = gpr.R(inst.RD);
LDR(INDEX_UNSIGNED, RD, X29, PPCSTATE_OFF(spr) + iIndex * 4);
break;
}
}
void JitArm64::mftb(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITSystemRegistersOff);
mfspr(inst);
}
void JitArm64::mtspr(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITSystemRegistersOff);
u32 iIndex = (inst.SPRU << 5) | (inst.SPRL & 0x1F);
switch (iIndex)
{
case SPR_DMAU:
case SPR_SPRG0:
case SPR_SPRG1:
case SPR_SPRG2:
case SPR_SPRG3:
case SPR_SRR0:
case SPR_SRR1:
// These are safe to do the easy way, see the bottom of this function.
break;
case SPR_LR:
case SPR_CTR:
case SPR_GQR0:
case SPR_GQR0 + 1:
case SPR_GQR0 + 2:
case SPR_GQR0 + 3:
case SPR_GQR0 + 4:
case SPR_GQR0 + 5:
case SPR_GQR0 + 6:
case SPR_GQR0 + 7:
// These are safe to do the easy way, see the bottom of this function.
break;
case SPR_XER:
{
FALLBACK_IF(true);
ARM64Reg RD = gpr.R(inst.RD);
ARM64Reg WA = gpr.GetReg();
ARM64Reg mask = gpr.GetReg();
MOVI2R(mask, 0xFF7F);
AND(WA, RD, mask, ArithOption(mask, ST_LSL, 0));
STRH(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(xer_stringctrl));
UBFM(WA, RD, XER_CA_SHIFT, XER_CA_SHIFT);
STRB(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(xer_ca));
UBFM(WA, RD, XER_OV_SHIFT, 31); // Same as WA = RD >> XER_OV_SHIFT
STRB(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(xer_so_ov));
gpr.Unlock(WA, mask);
}
break;
default:
FALLBACK_IF(true);
}
// OK, this is easy.
ARM64Reg RD = gpr.R(inst.RD);
STR(INDEX_UNSIGNED, RD, X29, PPCSTATE_OFF(spr) + iIndex * 4);
}

6
Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
View File

@ -272,9 +272,9 @@ static GekkoOPTemplate table31[] =
{146, &JitArm64::mtmsr}, //"mtmsr", OPTYPE_SYSTEM, FL_ENDBLOCK}},
{210, &JitArm64::mtsr}, //"mtsr", OPTYPE_SYSTEM, 0}},
{242, &JitArm64::mtsrin}, //"mtsrin", OPTYPE_SYSTEM, 0}},
{339, &JitArm64::FallBackToInterpreter}, //"mfspr", OPTYPE_SPR, FL_OUT_D}},
{467, &JitArm64::FallBackToInterpreter}, //"mtspr", OPTYPE_SPR, 0, 2}},
{371, &JitArm64::FallBackToInterpreter}, //"mftb", OPTYPE_SYSTEM, FL_OUT_D | FL_TIMER}},
{339, &JitArm64::mfspr}, //"mfspr", OPTYPE_SPR, FL_OUT_D}},
{467, &JitArm64::mtspr}, //"mtspr", OPTYPE_SPR, 0, 2}},
{371, &JitArm64::mftb}, //"mftb", OPTYPE_SYSTEM, FL_OUT_D | FL_TIMER}},
{512, &JitArm64::FallBackToInterpreter}, //"mcrxr", OPTYPE_SYSTEM, 0}},
{595, &JitArm64::mfsr}, //"mfsr", OPTYPE_SYSTEM, FL_OUT_D, 2}},
{659, &JitArm64::mfsrin}, //"mfsrin", OPTYPE_SYSTEM, FL_OUT_D, 2}},