summaryrefslogtreecommitdiff
path: root/src/arch
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/sparc/isa/decoder.isa198
-rw-r--r--src/arch/sparc/isa/formats/integerop.isa48
-rw-r--r--src/arch/sparc/isa/formats/priv.isa48
-rw-r--r--src/arch/sparc/isa/operands.isa83
-rw-r--r--src/arch/sparc/isa_traits.hh8
-rw-r--r--src/arch/sparc/process.cc21
-rw-r--r--src/arch/sparc/regfile.hh427
7 files changed, 355 insertions, 478 deletions
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index c6e05bf6f..fa8832920 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -44,13 +44,13 @@ decode OP default Unknown::unknown()
format Branch19
{
0x0: bpcci({{
- if(passesCondition(CcrIcc, COND2))
+ if(passesCondition(Ccr<3:0>, COND2))
NNPC = xc->readPC() + disp;
else
handle_annul
}});
0x2: bpccx({{
- if(passesCondition(CcrXcc, COND2))
+ if(passesCondition(Ccr<7:4>, COND2))
NNPC = xc->readPC() + disp;
else
handle_annul
@@ -58,7 +58,7 @@ decode OP default Unknown::unknown()
}
}
0x2: Branch22::bicc({{
- if(passesCondition(CcrIcc, COND2))
+ if(passesCondition(Ccr<3:0>, COND2))
NNPC = xc->readPC() + disp;
else
handle_annul
@@ -124,17 +124,17 @@ decode OP default Unknown::unknown()
0x05: andn({{Rd = Rs1.udw & ~Rs2_or_imm13;}});
0x06: orn({{Rd = Rs1.udw | ~Rs2_or_imm13;}});
0x07: xnor({{Rd = ~(Rs1.udw ^ Rs2_or_imm13);}});
- 0x08: addc({{Rd = Rs1.sdw + Rs2_or_imm13 + CcrIccC;}});
+ 0x08: addc({{Rd = Rs1.sdw + Rs2_or_imm13 + Ccr<0:0>;}});
0x09: mulx({{Rd = Rs1 * Rs2_or_imm13;}});
0x0A: umul({{
Rd = Rs1.udw<31:0> * Rs2_or_imm13<31:0>;
- YValue = Rd<63:32>;
+ Y = Rd<63:32>;
}});
0x0B: smul({{
Rd.sdw = Rs1.sdw<31:0> * Rs2_or_imm13<31:0>;
- YValue = Rd.sdw;
+ Y = Rd.sdw;
}});
- 0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 + CcrIccC;}});
+ 0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 + Ccr<0:0>}});
0x0D: udivx({{
if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
else Rd.udw = Rs1.udw / Rs2_or_imm13;
@@ -143,7 +143,7 @@ decode OP default Unknown::unknown()
if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
else
{
- Rd.udw = ((YValue << 32) | Rs1.udw<31:0>) / Rs2_or_imm13;
+ Rd.udw = ((Y << 32) | Rs1.udw<31:0>) / Rs2_or_imm13;
if(Rd.udw >> 32 != 0)
Rd.udw = 0xFFFFFFFF;
}
@@ -153,7 +153,7 @@ decode OP default Unknown::unknown()
fault = new DivisionByZero;
else
{
- Rd.udw = ((int64_t)((YValue << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw;
+ Rd.udw = ((int64_t)((Y << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw;
if(Rd.udw<63:31> != 0)
Rd.udw = 0x7FFFFFFF;
else if(Rd.udw<63:> && Rd.udw<62:31> != 0xFFFFFFFF)
@@ -187,7 +187,7 @@ decode OP default Unknown::unknown()
0x17: IntOpCcRes::xnorcc({{Rd = ~(Rs1 ^ Rs2_or_imm13);}});
0x18: addccc({{
int64_t resTemp, val2 = Rs2_or_imm13;
- int64_t carryin = CcrIccC;
+ int64_t carryin = Ccr<0:0>;
Rd = resTemp = Rs1 + val2 + carryin;}},
{{(Rs1<31:0> + val2<31:0> + carryin)<32:>}},
{{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
@@ -198,16 +198,16 @@ decode OP default Unknown::unknown()
0x1A: umulcc({{
uint64_t resTemp;
Rd = resTemp = Rs1.udw<31:0> * Rs2_or_imm13.udw<31:0>;
- YValue = resTemp<63:32>;}},
+ Y = resTemp<63:32>;}},
{{0}},{{0}},{{0}},{{0}});
0x1B: smulcc({{
int64_t resTemp;
Rd = resTemp = Rs1.sdw<31:0> * Rs2_or_imm13.sdw<31:0>;
- YValue = resTemp<63:32>;}},
+ Y = resTemp<63:32>;}},
{{0}},{{0}},{{0}},{{0}});
0x1C: subccc({{
int64_t resTemp, val2 = Rs2_or_imm13;
- int64_t carryin = CcrIccC;
+ int64_t carryin = Ccr<0:0>;
Rd = resTemp = Rs1 + ~(val2 + carryin) + 1;}},
{{(~((Rs1<31:0> + (~(val2 + carryin))<31:0> + 1))<32:>)}},
{{Rs1<31:> != val2<31:> && Rs1<31:> != resTemp<31:>}},
@@ -224,7 +224,7 @@ decode OP default Unknown::unknown()
if(val2 == 0) fault = new DivisionByZero;
else
{
- resTemp = (uint64_t)((YValue << 32) | Rs1.udw<31:0>) / val2;
+ resTemp = (uint64_t)((Y << 32) | Rs1.udw<31:0>) / val2;
overflow = (resTemp<63:32> != 0);
if(overflow) Rd = resTemp = 0xFFFFFFFF;
else Rd = resTemp;
@@ -240,7 +240,7 @@ decode OP default Unknown::unknown()
if(val2 == 0) fault = new DivisionByZero;
else
{
- Rd = resTemp = (int64_t)((YValue << 32) | Rs1.sdw<31:0>) / val2;
+ Rd = resTemp = (int64_t)((Y << 32) | Rs1.sdw<31:0>) / val2;
overflow = (resTemp<63:31> != 0);
underflow = (resTemp<63:> && resTemp<62:31> != 0xFFFFFFFF);
if(overflow) Rd = resTemp = 0x7FFFFFFF;
@@ -295,12 +295,12 @@ decode OP default Unknown::unknown()
int32_t multiplier = Rs1<31:0>;
int32_t savedLSB = Rs1<0:>;
multiplier = multiplier<31:1> |
- ((CcrIccN
- ^ CcrIccV) << 32);
- if(!YValue<0:>)
+ ((Ccr<3:3>
+ ^ Ccr<1:1>) << 32);
+ if(!Y<0:>)
multiplicand = 0;
Rd = resTemp = multiplicand + multiplier;
- YValue = YValue<31:1> | (savedLSB << 31);}},
+ Y = Y<31:1> | (savedLSB << 31);}},
{{((multiplicand & 0xFFFFFFFF + multiplier & 0xFFFFFFFF) >> 31)}},
{{multiplicand<31:> == multiplier<31:> && multiplier<31:> != resTemp<31:>}},
{{((multiplicand >> 1) + (multiplier >> 1) + (multiplicand & multiplier & 0x1))<63:>}},
@@ -321,56 +321,27 @@ decode OP default Unknown::unknown()
0x0: sra({{Rd = Rs1.sw >> (I ? SHCNT32 : Rs2<4:0>);}});
0x1: srax({{Rd = Rs1.sdw >> (I ? SHCNT64 : Rs2<5:0>);}});
}
- 0x28: decode RS1 {
- 0x0: rdy({{Rd = YValue;}});
- 0x2: rdccr({{Rd = Ccr;}});
- 0x3: rdasi({{Rd = Asi;}});
- 0x4: PrivTick::rdtick({{Rd = Tick;}});
- 0x5: rdpc({{Rd = xc->readPC();}});
- 0x6: rdfprs({{Rd = Fprs;}});
- 0xF: decode I {
- 0x0: Nop::membar({{/*Membar isn't needed yet*/}});
- 0x1: Nop::stbar({{/*Stbar isn't needed yet*/}});
- }
- }
- 0x2A: decode RS1 {
- format Priv
- {
- 0x0: rdprtpc({{
- Rd = xc->readMiscReg(MISCREG_TPC_BASE + Tl);
- }});
- 0x1: rdprtnpc({{
- Rd = xc->readMiscReg(MISCREG_TNPC_BASE + Tl);
- }});
- 0x2: rdprtstate({{
- Rd = xc->readMiscReg(MISCREG_TSTATE_BASE + Tl);
- }});
- 0x3: rdprtt({{
- Rd = xc->readMiscReg(MISCREG_TT_BASE + Tl);
- }});
- 0x4: rdprtick({{Rd = Tick;}});
- 0x5: rdprtba({{Rd = Tba;}});
- 0x6: rdprpstate({{Rd = Pstate;}});
- 0x7: rdprtl({{Rd = Tl;}});
- 0x8: rdprpil({{Rd = Pil;}});
- 0x9: rdprcwp({{Rd = Cwp;}});
- 0xA: rdprcansave({{Rd = Cansave;}});
- 0xB: rdprcanrestore({{Rd = Canrestore;}});
- 0xC: rdprcleanwin({{Rd = Cleanwin;}});
- 0xD: rdprotherwin({{Rd = Otherwin;}});
- 0xE: rdprwstate({{Rd = Wstate;}});
- }
- //The floating point queue isn't implemented right now.
- 0xF: Trap::rdprfq({{fault = new IllegalInstruction;}});
- 0x1F: Priv::rdprver({{Rd = Ver;}});
- }
+ // XXX might want a format rdipr thing here
+ 0x28: rdasr({{
+ Rd = xc->readMiscRegWithEffect(RS1 + AsrStart, fault);
+ }});
+ 0x29: rdhpr({{
+ // XXX Need to protect with format that traps non-priv/priv
+ // access
+ Rd = xc->readMiscRegWithEffect(RS1 + HprStart, fault);
+ }});
+ 0x2A: rdpr({{
+ // XXX Need to protect with format that traps non-priv
+ // access
+ Rd = xc->readMiscRegWithEffect(RS1 + PrStart, fault);
+ }});
0x2B: BasicOperate::flushw({{
if(NWindows - 2 - Cansave == 0)
{
if(Otherwin)
- fault = new SpillNOther(WstateOther);
+ fault = new SpillNOther(Wstate<5:3>);
else
- fault = new SpillNNormal(WstateNormal);
+ fault = new SpillNNormal(Wstate<2:0>);
}
}});
0x2C: decode MOVCC3
@@ -379,13 +350,13 @@ decode OP default Unknown::unknown()
0x1: decode CC
{
0x0: movcci({{
- if(passesCondition(CcrIcc, COND4))
+ if(passesCondition(Ccr<3:0>, COND4))
Rd = Rs2_or_imm11;
else
Rd = Rd;
}});
0x2: movccx({{
- if(passesCondition(CcrXcc, COND4))
+ if(passesCondition(Ccr<7:4>, COND4))
Rd = Rs2_or_imm11;
else
Rd = Rd;
@@ -419,49 +390,23 @@ decode OP default Unknown::unknown()
0x6: movrg({{Rd = (Rs1.sdw > 0) ? Rs2_or_imm10 : Rd;}});
0x7: movrge({{Rd = (Rs1.sdw >= 0) ? Rs2_or_imm10 : Rd;}});
}
- 0x30: decode RD {
- 0x0: wry({{Y = Rs1 ^ Rs2_or_imm13;}});
- 0x2: wrccr({{Ccr = Rs1 ^ Rs2_or_imm13;}});
- 0x3: wrasi({{Asi = Rs1 ^ Rs2_or_imm13;}});
- 0x6: wrfprs({{Asi = Rs1 ^ Rs2_or_imm13;}});
- 0xF: Trap::sir({{fault = new SoftwareInitiatedReset;}});
- }
+ 0x30: wrasr({{
+ xc->setMiscRegWithEffect(RD + AsrStart, Rs1 ^ Rs2_or_imm13);
+ }});
0x31: decode FCN {
0x0: BasicOperate::saved({{/*Boogy Boogy*/}});
0x1: BasicOperate::restored({{/*Boogy Boogy*/}});
}
- 0x32: decode RD {
- format Priv
- {
- 0x0: wrprtpc({{
- xc->setMiscReg(MISCREG_TPC_BASE + Tl,
- Rs1 ^ Rs2_or_imm13);
- }});
- 0x1: wrprtnpc({{
- xc->setMiscReg(MISCREG_TNPC_BASE + Tl,
- Rs1 ^ Rs2_or_imm13);
- }});
- 0x2: wrprtstate({{
- xc->setMiscReg(MISCREG_TSTATE_BASE + Tl,
- Rs1 ^ Rs2_or_imm13);
- }});
- 0x3: wrprtt({{
- xc->setMiscReg(MISCREG_TT_BASE + Tl,
- Rs1 ^ Rs2_or_imm13);
- }});
- 0x4: wrprtick({{Tick = Rs1 ^ Rs2_or_imm13;}});
- 0x5: wrprtba({{Tba = Rs1 ^ Rs2_or_imm13;}});
- 0x6: wrprpstate({{Pstate = Rs1 ^ Rs2_or_imm13;}});
- 0x7: wrprtl({{Tl = Rs1 ^ Rs2_or_imm13;}});
- 0x8: wrprpil({{Pil = Rs1 ^ Rs2_or_imm13;}});
- 0x9: wrprcwp({{Cwp = Rs1 ^ Rs2_or_imm13;}});
- 0xA: wrprcansave({{Cansave = Rs1 ^ Rs2_or_imm13;}});
- 0xB: wrprcanrestore({{Canrestore = Rs1 ^ Rs2_or_imm13;}});
- 0xC: wrprcleanwin({{Cleanwin = Rs1 ^ Rs2_or_imm13;}});
- 0xD: wrprotherwin({{Otherwin = Rs1 ^ Rs2_or_imm13;}});
- 0xE: wrprwstate({{Wstate = Rs1 ^ Rs2_or_imm13;}});
- }
- }
+ 0x32: wrpr({{
+ // XXX Need to protect with format that traps non-priv
+ // access
+ xc->setMiscRegWithEffect(RD + PrStart, Rs1 ^ Rs2_or_imm13);
+ }});
+ 0x33: wrhpr({{
+ // XXX Need to protect with format that traps non-priv/priv
+ // access
+ xc->setMiscRegWithEffect(RD + HprStart, Rs1 ^ Rs2_or_imm13);
+ }});
0x34: Trap::fpop1({{fault = new FpDisabled;}});
0x35: Trap::fpop2({{fault = new FpDisabled;}});
0x38: Branch::jmpl({{
@@ -492,9 +437,9 @@ decode OP default Unknown::unknown()
if(Canrestore == 0)
{
if(Otherwin)
- fault = new FillNOther(WstateOther);
+ fault = new FillNOther(Wstate<5:3>);
else
- fault = new FillNNormal(WstateNormal);
+ fault = new FillNNormal(Wstate<2:0>);
}
else
{
@@ -511,7 +456,7 @@ decode OP default Unknown::unknown()
0x3A: decode CC
{
0x0: Trap::tcci({{
- if(passesCondition(CcrIcc, COND2))
+ if(passesCondition(Ccr<3:0>, COND2))
{
int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
@@ -524,7 +469,7 @@ decode OP default Unknown::unknown()
}
}});
0x2: Trap::tccx({{
- if(passesCondition(CcrXcc, COND2))
+ if(passesCondition(Ccr<7:4>, COND2))
{
int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
@@ -545,9 +490,9 @@ decode OP default Unknown::unknown()
if(Cansave == 0)
{
if(Otherwin)
- fault = new SpillNOther(WstateOther);
+ fault = new SpillNOther(Wstate<5:3>);
else
- fault = new SpillNNormal(WstateNormal);
+ fault = new SpillNNormal(Wstate<2:0>);
Cwp = (Cwp + 2) % NWindows;
}
else if(Cleanwin - Canrestore == 0)
@@ -575,9 +520,9 @@ decode OP default Unknown::unknown()
if(Canrestore == 0)
{
if(Otherwin)
- fault = new FillNOther(WstateOther);
+ fault = new FillNOther(Wstate<5:3>);
else
- fault = new FillNNormal(WstateNormal);
+ fault = new FillNNormal(Wstate<2:0>);
}
else
{
@@ -594,23 +539,26 @@ decode OP default Unknown::unknown()
0x0: Priv::done({{
if(Tl == 0)
return new IllegalInstruction;
- Cwp = xc->readMiscReg(MISCREG_TSTATE_CWP_BASE + Tl);
- Asi = xc->readMiscReg(MISCREG_TSTATE_ASI_BASE + Tl);
- Ccr = xc->readMiscReg(MISCREG_TSTATE_CCR_BASE + Tl);
- Pstate = xc->readMiscReg(MISCREG_TSTATE_PSTATE_BASE + Tl);
- NPC = xc->readMiscReg(MISCREG_TNPC_BASE + Tl);
- NNPC = NPC + 4;
+
+ Cwp = Tstate<4:0>;
+ Pstate = Tstate<20:8>;
+ Asi = Tstate<31:24>;
+ Ccr = Tstate<39:32>;
+ Gl = Tstate<42:40>;
+ NPC = Tnpc;
+ NNPC = Tnpc + 4;
Tl = Tl - 1;
}});
0x1: BasicOperate::retry({{
if(Tl == 0)
return new IllegalInstruction;
- Cwp = xc->readMiscReg(MISCREG_TSTATE_CWP_BASE + Tl);
- Asi = xc->readMiscReg(MISCREG_TSTATE_ASI_BASE + Tl);
- Ccr = xc->readMiscReg(MISCREG_TSTATE_CCR_BASE + Tl);
- Pstate = xc->readMiscReg(MISCREG_TSTATE_PSTATE_BASE + Tl);
- NPC = xc->readMiscReg(MISCREG_TPC_BASE + Tl);
- NNPC = xc->readMiscReg(MISCREG_TNPC_BASE + Tl);
+ Cwp = Tstate<4:0>;
+ Pstate = Tstate<20:8>;
+ Asi = Tstate<31:24>;
+ Ccr = Tstate<39:32>;
+ Gl = Tstate<42:40>;
+ NPC = Tpc;
+ NNPC = Tnpc + 4;
Tl = Tl - 1;
}});
}
diff --git a/src/arch/sparc/isa/formats/integerop.isa b/src/arch/sparc/isa/formats/integerop.isa
index 1fd87b1d3..1894ce541 100644
--- a/src/arch/sparc/isa/formats/integerop.isa
+++ b/src/arch/sparc/isa/formats/integerop.isa
@@ -316,22 +316,38 @@ let {{
return (header_output, decoder_output, exec_output, decode_block)
calcCcCode = '''
- CcrIccN = (Rd >> 31) & 1;
- CcrIccZ = ((Rd & 0xFFFFFFFF) == 0);
- CcrXccN = (Rd >> 63) & 1;
- CcrXccZ = (Rd == 0);
- CcrIccV = %(ivValue)s;
- CcrIccC = %(icValue)s;
- CcrXccV = %(xvValue)s;
- CcrXccC = %(xcValue)s;
- DPRINTF(Sparc, "in = %%d\\n", CcrIccN);
- DPRINTF(Sparc, "iz = %%d\\n", CcrIccZ);
- DPRINTF(Sparc, "xn = %%d\\n", CcrXccN);
- DPRINTF(Sparc, "xz = %%d\\n", CcrXccZ);
- DPRINTF(Sparc, "iv = %%d\\n", CcrIccV);
- DPRINTF(Sparc, "ic = %%d\\n", CcrIccC);
- DPRINTF(Sparc, "xv = %%d\\n", CcrXccV);
- DPRINTF(Sparc, "xc = %%d\\n", CcrXccC);
+ uint8_t tmp_ccriccc;
+ uint8_t tmp_ccriccv;
+ uint8_t tmp_ccriccz;
+ uint8_t tmp_ccriccn;
+ uint8_t tmp_ccrxccc;
+ uint8_t tmp_ccrxccv;
+ uint8_t tmp_ccrxccz;
+ uint8_t tmp_ccrxccn;
+
+ tmp_ccriccn = (Rd >> 31) & 1;
+ tmp_ccriccz = ((Rd & 0xFFFFFFFF) == 0);
+ tmp_ccrxccn = (Rd >> 63) & 1;
+ tmp_ccrxccz = (Rd == 0);
+ tmp_ccriccv = %(ivValue)s & 1;
+ tmp_ccriccc = %(icValue)s & 1;
+ tmp_ccrxccv = %(xvValue)s & 1;
+ tmp_ccrxccc = %(xcValue)s & 1;
+
+ Ccr = tmp_ccriccc | tmp_ccriccv << 1 |
+ tmp_ccriccz << 2 | tmp_ccriccn << 3|
+ tmp_ccrxccc << 4 | tmp_ccrxccv << 5|
+ tmp_ccrxccz << 6| tmp_ccrxccn << 7;
+
+
+ DPRINTF(Sparc, "in = %%d\\n", (uint16_t)tmp_ccriccn);
+ DPRINTF(Sparc, "iz = %%d\\n", (uint16_t)tmp_ccriccz);
+ DPRINTF(Sparc, "xn = %%d\\n", (uint16_t)tmp_ccrxccn);
+ DPRINTF(Sparc, "xz = %%d\\n", (uint16_t)tmp_ccrxccz);
+ DPRINTF(Sparc, "iv = %%d\\n", (uint16_t)tmp_ccriccv);
+ DPRINTF(Sparc, "ic = %%d\\n", (uint16_t)tmp_ccriccc);
+ DPRINTF(Sparc, "xv = %%d\\n", (uint16_t)tmp_ccrxccv);
+ DPRINTF(Sparc, "xc = %%d\\n", (uint16_t)tmp_ccrxccc);
'''
}};
diff --git a/src/arch/sparc/isa/formats/priv.isa b/src/arch/sparc/isa/formats/priv.isa
index a8de22c0e..7df59d736 100644
--- a/src/arch/sparc/isa/formats/priv.isa
+++ b/src/arch/sparc/isa/formats/priv.isa
@@ -51,23 +51,6 @@ output header {{
};
/**
- * Base class for user mode "tick" access.
- */
- class PrivTick : public SparcStaticInst
- {
- protected:
- // Constructor
- PrivTick(const char *mnem, ExtMachInst _machInst,
- OpClass __opClass) :
- SparcStaticInst(mnem, _machInst, __opClass)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
- };
-
- /**
* Base class for privelege mode operations with immediates.
*/
class PrivImm : public Priv
@@ -83,21 +66,6 @@ output header {{
int32_t imm;
};
- /**
- * Base class for user mode "tick" access with immediates.
- */
- class PrivTickImm : public PrivTick
- {
- protected:
- // Constructor
- PrivTickImm(const char *mnem, ExtMachInst _machInst,
- OpClass __opClass) :
- PrivTick(mnem, _machInst, __opClass), imm(SIMM13)
- {
- }
-
- int32_t imm;
- };
}};
output decoder {{
@@ -106,12 +74,6 @@ output decoder {{
{
return "Privileged Instruction";
}
-
- std::string PrivTick::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- return "Regular access to Tick";
- }
}};
def template PrivExecute {{
@@ -154,16 +116,10 @@ let {{
// Primary format for integer operate instructions:
def format Priv(code, *opt_flags) {{
- checkCode = "(!PstatePriv)"
+ checkCode = "((xc->readMiscReg(PrStart + MISCREG_PSTATE))<2:2>)"
(header_output, decoder_output,
exec_output, decode_block) = doPrivFormat(code,
checkCode, name, Name, opt_flags)
}};
-// Primary format for integer operate instructions:
-def format PrivTick(code, *opt_flags) {{
- checkCode = "(!PstatePriv && TickNpt)"
- (header_output, decoder_output,
- exec_output, decode_block) = doPrivFormat(code,
- checkCode, name, Name, opt_flags)
-}};
+
diff --git a/src/arch/sparc/isa/operands.isa b/src/arch/sparc/isa/operands.isa
index a89034e30..9e5c783e8 100644
--- a/src/arch/sparc/isa/operands.isa
+++ b/src/arch/sparc/isa/operands.isa
@@ -63,83 +63,26 @@ def operands {{
'R1': ('IntReg', 'udw', '1', None, 7),
'R15': ('IntReg', 'udw', '15', 'IsInteger', 8),
'R16': ('IntReg', 'udw', '16', None, 9),
+
# Control registers
- 'Pstate': ('ControlReg', 'udw', 'MISCREG_PSTATE', None, 1),
- 'PstateAg': ('ControlReg', 'udw', 'MISCREG_PSTATE_AG', None, 2),
- 'PstateIe': ('ControlReg', 'udw', 'MISCREG_PSTATE_IE', None, 3),
- 'PstatePriv': ('ControlReg', 'udw', 'MISCREG_PSTATE_PRIV', None, 4),
- 'PstateAm': ('ControlReg', 'udw', 'MISCREG_PSTATE_AM', None, 5),
- 'PstatePef': ('ControlReg', 'udw', 'MISCREG_PSTATE_PEF', None, 6),
- 'PstateRed': ('ControlReg', 'udw', 'MISCREG_PSTATE_RED', None, 7),
- 'PstateMm': ('ControlReg', 'udw', 'MISCREG_PSTATE_MM', None, 8),
- 'PstateTle': ('ControlReg', 'udw', 'MISCREG_PSTATE_TLE', None, 9),
- 'PstateCle': ('ControlReg', 'udw', 'MISCREG_PSTATE_CLE', None, 10),
- 'Tba': ('ControlReg', 'udw', 'MISCREG_TBA', None, 11),
'Y': ('ControlReg', 'udw', 'MISCREG_Y', None, 12),
- 'YValue': ('ControlReg', 'udw', 'MISCREG_Y_VALUE', None, 13),
- 'Pil': ('ControlReg', 'udw', 'MISCREG_PIL', None, 14),
- 'Cwp': ('ControlReg', 'udw', 'MISCREG_CWP', None, 15),
- #'Tt': ('ControlReg', 'udw', 'MISCREG_TT_BASE + tl', None, 16),
'Ccr': ('ControlReg', 'udw', 'MISCREG_CCR', None, 17),
- 'CcrIcc': ('ControlReg', 'udw', 'MISCREG_CCR_ICC', None, 18),
- 'CcrIccC': ('ControlReg', 'udw', 'MISCREG_CCR_ICC_C', None, 19),
- 'CcrIccV': ('ControlReg', 'udw', 'MISCREG_CCR_ICC_V', None, 20),
- 'CcrIccZ': ('ControlReg', 'udw', 'MISCREG_CCR_ICC_Z', None, 21),
- 'CcrIccN': ('ControlReg', 'udw', 'MISCREG_CCR_ICC_N', None, 22),
- 'CcrXcc': ('ControlReg', 'udw', 'MISCREG_CCR_XCC', None, 23),
- 'CcrXccC': ('ControlReg', 'udw', 'MISCREG_CCR_XCC_C', None, 22),
- 'CcrXccV': ('ControlReg', 'udw', 'MISCREG_CCR_XCC_V', None, 23),
- 'CcrXccZ': ('ControlReg', 'udw', 'MISCREG_CCR_XCC_Z', None, 24),
- 'CcrXccN': ('ControlReg', 'udw', 'MISCREG_CCR_XCC_N', None, 25),
'Asi': ('ControlReg', 'udw', 'MISCREG_ASI', None, 26),
+
+ 'Tpc': ('ControlReg', 'udw', 'MISCREG_TPC', None, 28),
+ 'Tnpc': ('ControlReg', 'udw', 'MISCREG_TNPC', None, 28),
+ 'Tstate': ('ControlReg', 'udw', 'MISCREG_TSTATE', None, 28),
+ 'Pstate': ('ControlReg', 'udw', 'MISCREG_PSTATE', None, 1),
'Tl': ('ControlReg', 'udw', 'MISCREG_TL', None, 27),
- #'Tpc': ('ControlReg', 'udw', 'MISCREG_TPC', None, 28),
- 'Tick': ('ControlReg', 'udw', 'MISCREG_TICK', None, 29),
- 'TickCounter': ('ControlReg', 'udw', 'MISCREG_TICK_COUNTER', None, 32),
- 'TickNpt': ('ControlReg', 'udw', 'MISCREG_TICK_NPT', None, 33),
+
+ 'Cwp': ('ControlReg', 'udw', 'MISCREG_CWP', None, 15),
'Cansave': ('ControlReg', 'udw', 'MISCREG_CANSAVE', None, 34),
'Canrestore': ('ControlReg', 'udw', 'MISCREG_CANRESTORE', None, 35),
- 'Otherwin': ('ControlReg', 'udw', 'MISCREG_OTHERWIN', None, 36),
'Cleanwin': ('ControlReg', 'udw', 'MISCREG_CLEANWIN', None, 37),
+ 'Otherwin': ('ControlReg', 'udw', 'MISCREG_OTHERWIN', None, 36),
'Wstate': ('ControlReg', 'udw', 'MISCREG_WSTATE', None, 38),
- 'WstateNormal': ('ControlReg', 'udw', 'MISCREG_WSTATE_NORMAL', None,39),
- 'WstateOther': ('ControlReg', 'udw', 'MISCREG_WSTATE_OTHER', None, 40),
- 'Ver': ('ControlReg', 'udw', 'MISCREG_VER', None, 41),
- 'VerMaxwin': ('ControlReg', 'udw', 'MISCREG_VER_MAXWIN', None, 42),
- 'VerMaxtl': ('ControlReg', 'udw', 'MISCREG_VER_MAXTL', None, 43),
- 'VerMask': ('ControlReg', 'udw', 'MISCREG_VER_MASK', None, 44),
- 'VerImpl': ('ControlReg', 'udw', 'MISCREG_VER_MASK', None, 45),
- 'VerManuf': ('ControlReg', 'udw', 'MISCREG_VER_MANUF', None, 46),
- 'Fsr': ('ControlReg', 'udw', 'MISCREG_FSR', None, 47),
- 'FsrCexc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC', None, 48),
- 'FsrCexcNxc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC_NXC', None, 49),
- 'FsrCexcDzc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC_DZC', None, 50),
- 'FsrCexcUfc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC_UFC', None, 51),
- 'FsrCexcOfc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC_OFC', None, 52),
- 'FsrCexcNvc': ('ControlReg', 'udw', 'MISCREG_FSR_CEXC_NVC', None, 53),
- 'FsrAexc': ('ControlReg', 'udw', 'MISCREG_FSR_AEXC', None, 54),
- 'FsrAexcNxc': ('ControlReg', 'udw', 'MISCREG_FSR_AEXC_NXC', None, 55),
- 'FsrAexcDzc': ('ControlReg', 'udw', 'MISCREG_FSR_AEXC_DZC', None, 56),
- 'FsrAexcUfc': ('ControlReg', 'udw', 'MISCREG_FSR_AEXC_UFC', None, 57),
- 'FsrAexcOfc': ('ControlReg', 'udw', 'MISCREG_FSR_AEXC_OFC', None, 58),
- 'FsrAexcNvc': ('ControlReg', 'udw', 'MISCREC_FSR_AEXC_NVC', None, 59),
- 'FsrFcc0': ('ControlReg', 'udw', 'MISCREG_FSR_FCC0', None, 60),
- 'FsrQne': ('ControlReg', 'udw', 'MISCREG_FSR_QNE', None, 61),
- 'FsrFtt': ('ControlReg', 'udw', 'MISCREG_FSR_FTT', None, 62),
- 'FsrVer': ('ControlReg', 'udw', 'MISCREG_FSR_VER', None, 63),
- 'FsrNs': ('ControlReg', 'udw', 'MISCREG_FSR_NS', None, 64),
- 'FsrTem': ('ControlReg', 'udw', 'MISCREG_FSR_TEM', None, 65),
- 'FsrTemNxm': ('ControlReg', 'udw', 'MISCREG_FSR_TEM_NXM', None, 66),
- 'FsrTemDzm': ('ControlReg', 'udw', 'MISCREG_FSR_TEM_DZM', None, 67),
- 'FsrTemUfm': ('ControlReg', 'udw', 'MISCREG_FSR_TEM_UFM', None, 68),
- 'FsrTemOfm': ('ControlReg', 'udw', 'MISCREG_FSR_TEM_OFM', None, 69),
- 'FsrTemNvm': ('ControlReg', 'udw', 'MISCREG_FSR_TEM_NVM', None, 70),
- 'FsrRd': ('ControlReg', 'udw', 'MISCREG_FSR_RD', None, 71),
- 'FsrFcc1': ('ControlReg', 'udw', 'MISCREG_FSR_FCC1', None, 72),
- 'FsrFcc2': ('ControlReg', 'udw', 'MISCREG_FSR_FCC2', None, 73),
- 'FsrFcc3': ('ControlReg', 'udw', 'MISCREG_FSR_FCC3', None, 74),
- 'Fprs': ('ControlReg', 'udw', 'MISCREG_FPRS', None, 75),
- 'FprsDl': ('ControlReg', 'udw', 'MISCREG_FPRS_DL', None, 76),
- 'FprsDu': ('ControlReg', 'udw', 'MISCREG_FPRS_DU', None, 77),
- 'FprsFef': ('ControlReg', 'udw', 'MISCREG_FPRS_FEF', None, 78)
+ 'Gl': ('ControlReg', 'udw', 'MISCREG_GL', None, 12),
+
+ 'Fsr': ('ControlReg', 'udw', 'MISCREG_FSR', None, 47)
+
}};
diff --git a/src/arch/sparc/isa_traits.hh b/src/arch/sparc/isa_traits.hh
index 453d14664..2b4d89441 100644
--- a/src/arch/sparc/isa_traits.hh
+++ b/src/arch/sparc/isa_traits.hh
@@ -172,12 +172,12 @@ namespace SparcISA
// indicate success/failure in reg the carry bit of the ccr
// and put the return value itself in the standard return value reg ().
if (return_value.successful()) {
- // no error
- regs->setMiscReg(MISCREG_CCR_XCC_C, 0);
+ // no error, clear XCC.C
+ regs->setMiscReg(MISCREG_CCR, regs->readMiscReg(MISCREG_CCR) & 0xEF);
regs->setIntReg(ReturnValueReg, return_value.value());
} else {
- // got an error, return details
- regs->setMiscReg(MISCREG_CCR_XCC_C, 1);
+ // got an error, set XCC.C
+ regs->setMiscReg(MISCREG_CCR, regs->readMiscReg(MISCREG_CCR) | 0x10);
regs->setIntReg(ReturnValueReg, return_value.value());
}
}
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 250c1bec4..fe6692cc3 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -110,22 +110,13 @@ SparcLiveProcess::startup()
//From the SPARC ABI
//The process runs in user mode
- execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE_PRIV, 0);
- //Interrupts are enabled
- execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE_IE, 1);
- //Round to nearest
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_RD, 0);
- //Floating point traps are not enabled
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_TEM, 0);
- //Turn non standard mode off
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_NS, 0);
- //The floating point queue is empty
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_QNE, 0);
- //There are no accrued eexecContext[0]eptions
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_AEXC, 0);
- //There are no current eexecContext[0]eptions
- execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_CEXC, 0);
+ execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE, 0x02);
+ //Setup default FP state
+ execContexts[0]->setMiscReg(MISCREG_FSR, 0);
+
+ execContexts[0]->setMiscReg(MISCREG_TICK, 0);
+ //
/*
* Register window management registers
*/
diff --git a/src/arch/sparc/regfile.hh b/src/arch/sparc/regfile.hh
index 96f36eb91..4dfdc0cf3 100644
--- a/src/arch/sparc/regfile.hh
+++ b/src/arch/sparc/regfile.hh
@@ -32,6 +32,7 @@
#include "arch/sparc/faults.hh"
#include "base/trace.hh"
#include "sim/byteswap.hh"
+#include "sim/eventq.hh"
#include "sim/host.hh"
class Checkpoint;
@@ -42,7 +43,7 @@ namespace SparcISA
typedef uint8_t RegIndex;
// MAXTL - maximum trap level
- const int MaxPTL = 6;
+ const int MaxPTL = 2;
const int MaxTL = 6;
const int MaxGL = 3;
const int MaxPGL = 2;
@@ -50,6 +51,15 @@ namespace SparcISA
// NWINDOWS - number of register windows, can be 3 to 32
const int NWindows = 32;
+
+ const int AsrStart = 0;
+ const int PrStart = 32;
+ const int HprStart = 64;
+ const int MiscStart = 96;
+
+
+ const uint64_t Bit64 = 0x8000000000000000;
+
class IntRegFile
{
protected:
@@ -277,156 +287,83 @@ namespace SparcISA
enum MiscRegIndex
{
- MISCREG_PSTATE,
- MISCREG_PSTATE_AG,
- MISCREG_PSTATE_IE,
- MISCREG_PSTATE_PRIV,
- MISCREG_PSTATE_AM,
- MISCREG_PSTATE_PEF,
- MISCREG_PSTATE_RED,
- MISCREG_PSTATE_MM,
- MISCREG_PSTATE_TLE,
- MISCREG_PSTATE_CLE,
- MISCREG_TBA,
- MISCREG_Y,
- MISCREG_Y_VALUE,
- MISCREG_PIL,
- MISCREG_CWP,
- MISCREG_TT_BASE,
- MISCREG_TT_END = MISCREG_TT_BASE + MaxTL,
- MISCREG_CCR,
- MISCREG_CCR_ICC,
- MISCREG_CCR_ICC_C,
- MISCREG_CCR_ICC_V,
- MISCREG_CCR_ICC_Z,
- MISCREG_CCR_ICC_N,
- MISCREG_CCR_XCC,
- MISCREG_CCR_XCC_C,
- MISCREG_CCR_XCC_V,
- MISCREG_CCR_XCC_Z,
- MISCREG_CCR_XCC_N,
- MISCREG_ASI,
- MISCREG_TL,
- MISCREG_TPC_BASE,
- MISCREG_TPC_END = MISCREG_TPC_BASE + MaxTL,
- MISCREG_TNPC_BASE,
- MISCREG_TNPC_END = MISCREG_TNPC_BASE + MaxTL,
- MISCREG_TSTATE_BASE,
- MISCREG_TSTATE_END = MISCREG_TSTATE_BASE + MaxTL,
- MISCREG_TSTATE_CWP_BASE,
- MISCREG_TSTATE_CWP_END = MISCREG_TSTATE_CWP_BASE + MaxTL,
- MISCREG_TSTATE_PSTATE_BASE,
- MISCREG_TSTATE_PSTATE_END = MISCREG_TSTATE_PSTATE_BASE + MaxTL,
- MISCREG_TSTATE_ASI_BASE,
- MISCREG_TSTATE_ASI_END = MISCREG_TSTATE_ASI_BASE + MaxTL,
- MISCREG_TSTATE_CCR_BASE,
- MISCREG_TSTATE_CCR_END = MISCREG_TSTATE_CCR_BASE + MaxTL,
- MISCREG_TICK,
- MISCREG_TICK_COUNTER,
- MISCREG_TICK_NPT,
- MISCREG_CANSAVE,
- MISCREG_CANRESTORE,
- MISCREG_OTHERWIN,
- MISCREG_CLEANWIN,
- MISCREG_WSTATE,
- MISCREG_WSTATE_NORMAL,
- MISCREG_WSTATE_OTHER,
- MISCREG_VER,
- MISCREG_VER_MAXWIN,
- MISCREG_VER_MAXTL,
- MISCREG_VER_MASK,
- MISCREG_VER_IMPL,
- MISCREG_VER_MANUF,
- MISCREG_FSR,
- MISCREG_FSR_CEXC,
- MISCREG_FSR_CEXC_NXC,
- MISCREG_FSR_CEXC_DZC,
- MISCREG_FSR_CEXC_UFC,
- MISCREG_FSR_CEXC_OFC,
- MISCREG_FSR_CEXC_NVC,
- MISCREG_FSR_AEXC,
- MISCREG_FSR_AEXC_NXC,
- MISCREG_FSR_AEXC_DZC,
- MISCREG_FSR_AEXC_UFC,
- MISCREG_FSR_AEXC_OFC,
- MISCREG_FSR_AEXC_NVC,
- MISCREG_FSR_FCC0,
- MISCREG_FSR_QNE,
- MISCREG_FSR_FTT,
- MISCREG_FSR_VER,
- MISCREG_FSR_NS,
- MISCREG_FSR_TEM,
- MISCREG_FSR_TEM_NXM,
- MISCREG_FSR_TEM_DZM,
- MISCREG_FSR_TEM_UFM,
- MISCREG_FSR_TEM_OFM,
- MISCREG_FSR_TEM_NVM,
- MISCREG_FSR_RD,
- MISCREG_FSR_FCC1,
- MISCREG_FSR_FCC2,
- MISCREG_FSR_FCC3,
- MISCREG_FPRS,
- MISCREG_FPRS_DL,
- MISCREG_FPRS_DU,
- MISCREG_FPRS_FEF,
- numMiscRegs
+ /** Ancillary State Registers */
+ MISCREG_Y = AsrStart + 0,
+ MISCREG_CCR = AsrStart + 2,
+ MISCREG_ASI = AsrStart + 3,
+ MISCREG_TICK = AsrStart + 4,
+ MISCREG_PC = AsrStart + 5,
+ MISCREG_FPRS = AsrStart + 6,
+ MISCREG_PCR = AsrStart + 16,
+ MISCREG_PIC = AsrStart + 17,
+ MISCREG_GSR = AsrStart + 19,
+ MISCREG_SOFTINT_SET = AsrStart + 20,
+ MISCREG_SOFTINT_CLR = AsrStart + 21,
+ MISCREG_SOFTINT = AsrStart + 22,
+ MISCREG_TICK_CMPR = AsrStart + 23,
+ MISCREG_STICK = AsrStart + 24,
+ MISCREG_STICK_CMPR = AsrStart + 25,
+
+ /** Privilged Registers */
+ MISCREG_TPC = PrStart + 0,
+ MISCREG_TNPC = PrStart + 1,
+ MISCREG_TSTATE = PrStart + 2,
+ MISCREG_TT = PrStart + 3,
+ MISCREG_PRIVTICK = PrStart + 4,
+ MISCREG_TBA = PrStart + 5,
+ MISCREG_PSTATE = PrStart + 6,
+ MISCREG_TL = PrStart + 7,
+ MISCREG_PIL = PrStart + 8,
+ MISCREG_CWP = PrStart + 9,
+ MISCREG_CANSAVE = PrStart + 10,
+ MISCREG_CANRESTORE = PrStart + 11,
+ MISCREG_CLEANWIN = PrStart + 12,
+ MISCREG_OTHERWIN = PrStart + 13,
+ MISCREG_WSTATE = PrStart + 14,
+ MISCREG_GL = PrStart + 16,
+
+ /** Hyper privileged registers */
+ MISCREG_HPSTATE = HprStart + 0,
+ MISCREG_HTSTATE = HprStart + 1,
+ MISCREG_HINTP = HprStart + 3,
+ MISCREG_HTBA = HprStart + 5,
+ MISCREG_HVER = HprStart + 6,
+ MISCREG_STRAND_STS_REG = HprStart + 16,
+ MISCREG_HSTICK_CMPR = HprStart + 31,
+
+ /** Floating Point Status Register */
+ MISCREG_FSR = MiscStart + 0
+
};
// The control registers, broken out into fields
class MiscRegFile
{
private:
- union
- {
- uint16_t pstate; // Process State Register
- struct
- {
- uint16_t ag:1; // Alternate Globals
- uint16_t ie:1; // Interrupt enable
- uint16_t priv:1; // Privelege mode
- uint16_t am:1; // Address mask
- uint16_t pef:1; // PSTATE enable floating-point
- uint16_t red:1; // RED (reset, error, debug) state
- uint16_t mm:2; // Memory Model
- uint16_t tle:1; // Trap little-endian
- uint16_t cle:1; // Current little-endian
- } pstateFields;
- };
- uint64_t tba; // Trap Base Address
- union
- {
+
+ /* ASR Registers */
+ union {
uint64_t y; // Y (used in obsolete multiplication)
- struct
- {
+ struct {
uint64_t value:32; // The actual value stored in y
uint64_t :32; // reserved bits
} yFields;
};
- uint8_t pil; // Process Interrupt Register
- uint8_t cwp; // Current Window Pointer
- uint16_t tt[MaxTL]; // Trap Type (Type of trap which occured
- // on the previous level)
- union
- {
+ union {
uint8_t ccr; // Condition Code Register
- struct
- {
- union
- {
+ struct {
+ union {
uint8_t icc:4; // 32-bit condition codes
- struct
- {
+ struct {
uint8_t c:1; // Carry
uint8_t v:1; // Overflow
uint8_t z:1; // Zero
uint8_t n:1; // Negative
} iccFields;
};
- union
- {
+ union {
uint8_t xcc:4; // 64-bit condition codes
- struct
- {
+ struct {
uint8_t c:1; // Carry
uint8_t v:1; // Overflow
uint8_t z:1; // Zero
@@ -436,73 +373,143 @@ namespace SparcISA
} ccrFields;
};
uint8_t asi; // Address Space Identifier
- uint8_t tl; // Trap Level
+ union {
+ uint64_t tick; // Hardware clock-tick counter
+ struct {
+ int64_t counter:63; // Clock-tick count
+ uint64_t npt:1; // Non-priveleged trap
+ } tickFields;
+ };
+ union {
+ uint8_t fprs; // Floating-Point Register State
+ struct {
+ uint8_t dl:1; // Dirty lower
+ uint8_t du:1; // Dirty upper
+ uint8_t fef:1; // FPRS enable floating-Point
+ } fprsFields;
+ };
+ union {
+ uint64_t softint;
+ struct {
+ uint64_t tm:1;
+ uint64_t int_level:14;
+ uint64_t sm:1;
+ } softintFields;
+ };
+ union {
+ uint64_t tick_cmpr; // Hardware tick compare registers
+ struct {
+ uint64_t tick_cmpr:63; // Clock-tick count
+ uint64_t int_dis:1; // Non-priveleged trap
+ } tick_cmprFields;
+ };
+ union {
+ uint64_t stick; // Hardware clock-tick counter
+ struct {
+ int64_t counter:63; // Clock-tick count
+ uint64_t npt:1; // Non-priveleged trap
+ } stickFields;
+ };
+ union {
+ uint64_t stick_cmpr; // Hardware tick compare registers
+ struct {
+ uint64_t tick_cmpr:63; // Clock-tick count
+ uint64_t int_dis:1; // Non-priveleged trap
+ } stick_cmprFields;
+ };
+
+
+ /* Privileged Registers */
uint64_t tpc[MaxTL]; // Trap Program Counter (value from
// previous trap level)
uint64_t tnpc[MaxTL]; // Trap Next Program Counter (value from
// previous trap level)
- union
- {
+ union {
uint64_t tstate[MaxTL]; // Trap State
- struct
- {
+ struct {
//Values are from previous trap level
uint64_t cwp:5; // Current Window Pointer
- uint64_t :2; // Reserved bits
- uint64_t pstate:10; // Process State
- uint64_t :6; // Reserved bits
+ uint64_t :3; // Reserved bits
+ uint64_t pstate:13; // Process State
+ uint64_t :3; // Reserved bits
uint64_t asi:8; // Address Space Identifier
uint64_t ccr:8; // Condition Code Register
+ uint64_t gl:8; // Global level
} tstateFields[MaxTL];
};
- union
- {
- uint64_t tick; // Hardware clock-tick counter
- struct
- {
- uint64_t counter:63; // Clock-tick count
- uint64_t npt:1; // Non-priveleged trap
- } tickFields;
+ uint16_t tt[MaxTL]; // Trap Type (Type of trap which occured
+ // on the previous level)
+ uint64_t tba; // Trap Base Address
+
+ union {
+ uint16_t pstate; // Process State Register
+ struct {
+ uint16_t :1; // reserved
+ uint16_t ie:1; // Interrupt enable
+ uint16_t priv:1; // Privelege mode
+ uint16_t am:1; // Address mask
+ uint16_t pef:1; // PSTATE enable floating-point
+ uint16_t :1; // reserved2
+ uint16_t mm:2; // Memory Model
+ uint16_t tle:1; // Trap little-endian
+ uint16_t cle:1; // Current little-endian
+ } pstateFields;
};
+ uint8_t tl; // Trap Level
+ uint8_t pil; // Process Interrupt Register
+ uint8_t cwp; // Current Window Pointer
uint8_t cansave; // Savable windows
uint8_t canrestore; // Restorable windows
- uint8_t otherwin; // Other windows
uint8_t cleanwin; // Clean windows
- union
- {
+ uint8_t otherwin; // Other windows
+ union {
uint8_t wstate; // Window State
- struct
- {
+ struct {
uint8_t normal:3; // Bits TT<4:2> are set to on a normal
// register window trap
uint8_t other:3; // Bits TT<4:2> are set to on an "otherwin"
// register window trap
} wstateFields;
};
- union
- {
- uint64_t ver; // Version
- struct
- {
- uint64_t maxwin:5; // Max CWP value
- uint64_t :2; // Reserved bits
- uint64_t maxtl:8; // Maximum trap level
- uint64_t :8; // Reserved bits
- uint64_t mask:8; // Processor mask set revision number
- uint64_t impl:16; // Implementation identification number
- uint64_t manuf:16; // Manufacturer code
- } verFields;
+ uint8_t gl; // Global level register
+
+
+ /** Hyperprivileged Registers */
+ union {
+ uint64_t hpstate; // Hyperprivileged State Register
+ struct {
+ uint8_t tlz: 1;
+ uint8_t :1;
+ uint8_t hpriv:1;
+ uint8_t :2;
+ uint8_t red:1;
+ uint8_t :4;
+ uint8_t ibe:1;
+ uint8_t id:1;
+ } hpstateFields;
};
- union
- {
+
+ uint64_t htstate[MaxTL]; // Hyperprivileged Trap State Register
+ uint64_t hintp;
+ uint64_t htba; // Hyperprivileged Trap Base Address register
+ union {
+ uint64_t hstick_cmpr; // Hardware tick compare registers
+ struct {
+ uint64_t tick_cmpr:63; // Clock-tick count
+ uint64_t int_dis:1; // Non-priveleged trap
+ } hstick_cmprFields;
+ };
+
+ uint64_t strandStatusReg; // Per strand status register
+
+
+ /** Floating point misc registers. */
+ union {
uint64_t fsr; // Floating-Point State Register
- struct
- {
- union
- {
+ struct {
+ union {
uint64_t cexc:5; // Current excpetion
- struct
- {
+ struct {
uint64_t nxc:1; // Inexact
uint64_t dzc:1; // Divide by zero
uint64_t ufc:1; // Underflow
@@ -510,11 +517,9 @@ namespace SparcISA
uint64_t nvc:1; // Invalid operand
} cexcFields;
};
- union
- {
+ union {
uint64_t aexc:5; // Accrued exception
- struct
- {
+ struct {
uint64_t nxc:1; // Inexact
uint64_t dzc:1; // Divide by zero
uint64_t ufc:1; // Underflow
@@ -530,11 +535,9 @@ namespace SparcISA
uint64_t ver:3; // Version (of the FPU)
uint64_t :2; // Reserved bits
uint64_t ns:1; // Nonstandard floating point
- union
- {
+ union {
uint64_t tem:5; // Trap Enable Mask
- struct
- {
+ struct {
uint64_t nxm:1; // Inexact
uint64_t dzm:1; // Divide by zero
uint64_t ufm:1; // Underflow
@@ -550,16 +553,24 @@ namespace SparcISA
uint64_t :26; // Reserved bits
} fsrFields;
};
- union
- {
- uint8_t fprs; // Floating-Point Register State
- struct
- {
- uint8_t dl:1; // Dirty lower
- uint8_t du:1; // Dirty upper
- uint8_t fef:1; // FPRS enable floating-Point
- } fprsFields;
- };
+
+ // These need to check the int_dis field and if 0 then
+ // set appropriate bit in softint and checkinterrutps on the cpu
+ void processTickCompare() { panic("tick compare not implemented\n"); }
+ void processSTickCompare(){ panic("tick compare not implemented\n"); }
+ void processHSTickCompare(){ panic("tick compare not implemented\n"); }
+
+ typedef EventWrapper<MiscRegFile,
+ &MiscRegFile::processTickCompare> TickCompareEvent;
+ TickCompareEvent tickCompare;
+
+ typedef EventWrapper<MiscRegFile,
+ &MiscRegFile::processSTickCompare> STickCompareEvent;
+ STickCompareEvent sTickCompare;
+
+ typedef EventWrapper<MiscRegFile,
+ &MiscRegFile::processHSTickCompare> HSTickCompareEvent;
+ HSTickCompareEvent hSTickCompare;
public:
@@ -572,6 +583,7 @@ namespace SparcISA
//on reset Trap which sets the processor into the following state.
//Bits that aren't set aren't defined on startup.
tl = MaxTL;
+ gl = MaxGL;
tt[tl] = PowerOnReset.trapType();
pstateFields.mm = 0; //Total Store Order
pstateFields.red = 1; //Enter RED_State
@@ -581,9 +593,18 @@ namespace SparcISA
pstateFields.ag = 1; //Globals are replaced with alternate globals
pstateFields.tle = 0; //Big Endian mode for traps
pstateFields.cle = 0; //Big Endian mode for non-traps
- tickFields.counter = 0; //The TICK register is unreadable by
- tickFields.npt = 1; //The TICK register is unreadable by
- //non-priveleged software
+ tickFields.counter = 0; //The TICK register is unreadable bya
+ tickFields.npt = 1; //The TICK register is unreadable by by !priv
+ tick_cmpr.int_dis = 1; // disable timer compare interrupts
+ stickFields.counter = 0; //The TICK register is unreadable by
+ stickFields.npt = 1; //The TICK register is unreadable by by !priv
+ hpstateFields.id = 1;
+ hpstateFields.ibe = 0;
+ hpstateFields.red = 1;
+ hpstateFields.hpriv = 1;
+ hpstateFields.tlz = 0; // this is a guess
+
+
#else
/* //This sets up the initial state of the processor for usermode processes
pstateFields.priv = 0; //Process runs in user mode
@@ -604,6 +625,7 @@ namespace SparcISA
}
MiscRegFile()
+ : tickCompare(this), sTickCompare(this), hSTickCompare(this)
{
reset();
}
@@ -622,6 +644,10 @@ namespace SparcISA
void unserialize(Checkpoint * cp, const std::string & section);
void copyMiscRegs(ExecContext * xc);
+
+ bool isHyperPriv() { return hpstateFields.hpriv; }
+ bool isPriv() { return hpstateFields.hpriv || pstateFields.priv; }
+ bool isNonPriv() { return !isPriv(); }
};
typedef union
@@ -775,22 +801,17 @@ namespace SparcISA
CONTEXT_CWP,
CONTEXT_GLOBALS
};
-
- union ContextVal
- {
- MiscReg reg;
- int globalLevel;
- };
+ typedef int ContextVal;
void changeContext(ContextParam param, ContextVal val)
{
switch(param)
{
case CONTEXT_CWP:
- intRegFile.setCWP(val.reg);
+ intRegFile.setCWP(val);
break;
case CONTEXT_GLOBALS:
- intRegFile.setGlobals(val.globalLevel);
+ intRegFile.setGlobals(val);
break;
default:
panic("Tried to set illegal context parameter in the SPARC regfile.\n");
@@ -802,6 +823,8 @@ namespace SparcISA
void copyMiscRegs(ExecContext *src, ExecContext *dest);
+ int InterruptLevel(uint64_t softint);
+
} // namespace SparcISA
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 22:49:12 +0000