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-rw-r--r--arch/mips/faults.cc2
-rw-r--r--arch/mips/faults.hh66
-rw-r--r--arch/mips/isa/base.isa11
-rw-r--r--arch/mips/isa/bitfields.isa5
-rw-r--r--arch/mips/isa/decoder.isa311
-rw-r--r--arch/mips/isa/formats.isa3
-rw-r--r--arch/mips/isa/formats/basic.isa4
-rw-r--r--arch/mips/isa/formats/branch.isa81
-rw-r--r--arch/mips/isa/formats/fp.isa41
-rw-r--r--arch/mips/isa/formats/int.isa63
-rw-r--r--arch/mips/isa/formats/mem.isa9
-rw-r--r--arch/mips/isa/formats/noop.isa10
-rw-r--r--arch/mips/isa/formats/trap.isa11
-rw-r--r--arch/mips/isa/formats/unimp.isa4
-rw-r--r--arch/mips/isa/formats/unknown.isa2
-rw-r--r--arch/mips/isa/formats/util.isa69
-rw-r--r--arch/mips/isa/operands.isa11
-rw-r--r--arch/mips/isa_traits.cc273
-rw-r--r--arch/mips/isa_traits.hh196
-rw-r--r--arch/mips/linux_process.cc4
-rw-r--r--arch/mips/stacktrace.hh119
21 files changed, 915 insertions, 380 deletions
diff --git a/arch/mips/faults.cc b/arch/mips/faults.cc
index e05b3fe59..142dfe0a4 100644
--- a/arch/mips/faults.cc
+++ b/arch/mips/faults.cc
@@ -26,7 +26,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "arch/alpha/faults.hh"
+#include "arch/mips/faults.hh"
ResetFaultType * const ResetFault =
new ResetFaultType("reset", 1, 0x0001);
diff --git a/arch/mips/faults.hh b/arch/mips/faults.hh
index 60c9e735c..c1cb956b0 100644
--- a/arch/mips/faults.hh
+++ b/arch/mips/faults.hh
@@ -26,131 +26,131 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef __ALPHA_FAULTS_HH__
-#define __ALPHA_FAULTS_HH__
+#ifndef __MIPS_FAULTS_HH__
+#define __MIPS_FAULTS_HH__
#include "sim/faults.hh"
#include "arch/isa_traits.hh" //For the Addr type
-class AlphaFault : public Fault
+class MipsFault : public FaultBase
{
public:
- AlphaFault(char * newName, int newId, Addr newVect)
- : Fault(newName, newId), vect(newVect)
+ MipsFault(char * newName, int newId, Addr newVect)
+ : FaultBase(newName, newId), vect(newVect)
{;}
Addr vect;
};
-extern class ResetFaultType : public AlphaFault
+extern class ResetFaultType : public MipsFault
{
public:
ResetFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const ResetFault;
-extern class ArithmeticFaultType : public AlphaFault
+extern class ArithmeticFaultType : public MipsFault
{
public:
ArithmeticFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const ArithmeticFault;
-extern class InterruptFaultType : public AlphaFault
+extern class InterruptFaultType : public MipsFault
{
public:
InterruptFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const InterruptFault;
-extern class NDtbMissFaultType : public AlphaFault
+extern class NDtbMissFaultType : public MipsFault
{
public:
NDtbMissFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const NDtbMissFault;
-extern class PDtbMissFaultType : public AlphaFault
+extern class PDtbMissFaultType : public MipsFault
{
public:
PDtbMissFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const PDtbMissFault;
-extern class DtbPageFaultType : public AlphaFault
+extern class DtbPageFaultType : public MipsFault
{
public:
DtbPageFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const DtbPageFault;
-extern class DtbAcvFaultType : public AlphaFault
+extern class DtbAcvFaultType : public MipsFault
{
public:
DtbAcvFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const DtbAcvFault;
-extern class ItbMissFaultType : public AlphaFault
+extern class ItbMissFaultType : public MipsFault
{
public:
ItbMissFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const ItbMissFault;
-extern class ItbPageFaultType : public AlphaFault
+extern class ItbPageFaultType : public MipsFault
{
public:
ItbPageFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const ItbPageFault;
-extern class ItbAcvFaultType : public AlphaFault
+extern class ItbAcvFaultType : public MipsFault
{
public:
ItbAcvFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const ItbAcvFault;
-extern class UnimplementedOpcodeFaultType : public AlphaFault
+extern class UnimplementedOpcodeFaultType : public MipsFault
{
public:
UnimplementedOpcodeFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const UnimplementedOpcodeFault;
-extern class FloatEnableFaultType : public AlphaFault
+extern class FloatEnableFaultType : public MipsFault
{
public:
FloatEnableFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const FloatEnableFault;
-extern class PalFaultType : public AlphaFault
+extern class PalFaultType : public MipsFault
{
public:
PalFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const PalFault;
-extern class IntegerOverflowFaultType : public AlphaFault
+extern class IntegerOverflowFaultType : public MipsFault
{
public:
IntegerOverflowFaultType(char * newName, int newId, Addr newVect)
- : AlphaFault(newName, newId, newVect)
+ : MipsFault(newName, newId, newVect)
{;}
} * const IntegerOverflowFault;
diff --git a/arch/mips/isa/base.isa b/arch/mips/isa/base.isa
index 7600632d3..4125b5101 100644
--- a/arch/mips/isa/base.isa
+++ b/arch/mips/isa/base.isa
@@ -7,7 +7,13 @@
//Outputs to decoder.hh
output header {{
+
#define R31 31
+#include "arch/mips/faults.hh"
+#include "arch/mips/isa_traits.hh"
+
+ using namespace MipsISA;
+
/**
* Base class for all MIPS static instructions.
@@ -19,12 +25,12 @@ output header {{
/// Make MipsISA register dependence tags directly visible in
/// this class and derived classes. Maybe these should really
/// live here and not in the MipsISA namespace.
- enum DependenceTags {
+ /*enum DependenceTags {
FP_Base_DepTag = MipsISA::FP_Base_DepTag,
Fpcr_DepTag = MipsISA::Fpcr_DepTag,
Uniq_DepTag = MipsISA::Uniq_DepTag,
IPR_Base_DepTag = MipsISA::IPR_Base_DepTag
- };
+ };*/
// Constructor
MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
@@ -67,6 +73,7 @@ output decoder {{
{
printReg(ss, _srcRegIdx[0]);
}
+
if(_numSrcRegs > 1)
{
ss << ",";
diff --git a/arch/mips/isa/bitfields.isa b/arch/mips/isa/bitfields.isa
index 3a01b64ee..58d487ad2 100644
--- a/arch/mips/isa/bitfields.isa
+++ b/arch/mips/isa/bitfields.isa
@@ -33,10 +33,12 @@ def bitfield INTIMM <15: 0>; // integer immediate (literal)
// Floating-point operate format
def bitfield FMT <25:21>;
+def bitfield FR <25:21>;
def bitfield FT <20:16>;
def bitfield FS <15:11>;
def bitfield FD <10:6>;
+def bitfield CC <20:18>;
def bitfield ND <17:17>;
def bitfield TF <16:16>;
def bitfield MOVCI <16:16>;
@@ -45,6 +47,9 @@ def bitfield SRL <21:21>;
def bitfield SRLV < 6: 6>;
def bitfield SA <10: 6>;
+// CP0 Register Select
+def bitfield SEL < 2: 0>;
+
// Interrupts
def bitfield SC < 5: 5>;
diff --git a/arch/mips/isa/decoder.isa b/arch/mips/isa/decoder.isa
index f16da7f87..b2410f9b9 100644
--- a/arch/mips/isa/decoder.isa
+++ b/arch/mips/isa/decoder.isa
@@ -20,8 +20,8 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode FUNCTION_LO {
0x1: decode MOVCI {
format BasicOp {
- 0: movf({{ if( xc->miscRegs.fpcr == 0) Rd = Rs}});
- 1: movt({{ if( xc->miscRegs.fpcr == 1) Rd = Rs}});
+ 0: movf({{ if (xc->readMiscReg(FPCR,0) != CC) Rd = Rs}});
+ 1: movt({{ if (xc->readMiscReg(FPCR,0) == CC) Rd = Rs}});
}
}
@@ -60,9 +60,9 @@ decode OPCODE_HI default Unknown::unknown() {
//to distinguish JR from JR.HB and JALR from JALR.HB"
format Jump {
0x0: decode HINT {
- 0:jr({{ NNPC = Rs; }},IsReturn);
+ 0:jr({{ NNPC = Rs & ~1; }},IsReturn);
- 1:jr_hb({{ NNPC = Rs; clear_exe_inst_hazards(); }},IsReturn);
+ 1:jr_hb({{ NNPC = Rs & ~1; clear_exe_inst_hazards(); }},IsReturn);
}
0x1: decode HINT {
@@ -86,10 +86,10 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: decode FUNCTION_LO {
format BasicOp {
- 0x0: mfhi({{ Rd = xc->miscRegs.hi; }});
- 0x1: mthi({{ xc->miscRegs.hi = Rs; }});
- 0x2: mflo({{ Rd = xc->miscRegs.lo; }});
- 0x3: mtlo({{ xc->miscRegs.lo = Rs; }});
+ 0x0: mfhi({{ Rd = xc->readMiscReg(Hi,0); }});
+ 0x1: mthi({{ xc->setMiscReg(Hi,0,Rs); }});
+ 0x2: mflo({{ Rd = xc->readMiscReg(Lo,0); }});
+ 0x3: mtlo({{ xc->setMiscReg(Lo,0,Rs); }});
}
}
@@ -97,39 +97,38 @@ decode OPCODE_HI default Unknown::unknown() {
format IntOp {
0x0: mult({{
int64_t temp1 = Rs.sw * Rt.sw;
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>;
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
0x1: multu({{
int64_t temp1 = Rs.uw * Rt.uw;
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>
- Rd.sw = Rs.uw * Rt.uw;
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
0x2: div({{
- xc->miscRegs.hi = Rs.sw % Rt.sw;
- xc->miscRegs.lo = Rs.sw / Rt.sw;
+ xc->setMiscReg(Hi,0,Rs.sw % Rt.sw);
+ xc->setMiscReg(Lo,0,Rs.sw / Rt.sw);
}});
0x3: divu({{
- xc->miscRegs.hi = Rs.uw % Rt.uw;
- xc->miscRegs.lo = Rs.uw / Rt.uw;
+ xc->setMiscReg(Hi,0,Rs.uw % Rt.uw);
+ xc->setMiscReg(Lo,0,Rs.uw / Rt.uw);
}});
}
}
0x4: decode FUNCTION_LO {
format IntOp {
- 0x0: add({{ Rd.sw = Rs.sw + Rt.sw;}});
- 0x1: addu({{ Rd.uw = Rs.uw + Rt.uw;}});
- 0x2: sub({{ Rd.sw = Rs.sw - Rt.sw;}});
- 0x3: subu({{ Rd.uw = Rs.uw - Rt.uw;}});
- 0x4: and({{ Rd.sw = Rs.uw & Rt.uw;}});
- 0x5: or({{ Rd.sw = Rs.uw | Rt.uw;}});
- 0x6: xor({{ Rd.sw = Rs.uw ^ Rt.uw;}});
- 0x7: nor({{ Rd.sw = ~(Rs.uw | Rt.uw);}});
+ 0x0: add({{ Rd.sw = Rs.sw + Rt.sw;/*Trap on Overflow*/}});
+ 0x1: addu({{ Rd.sw = Rs.sw + Rt.sw;}});
+ 0x2: sub({{ Rd.sw = Rs.sw - Rt.sw; /*Trap on Overflow*/}});
+ 0x3: subu({{ Rd.sw = Rs.sw - Rt.uw;}});
+ 0x4: and({{ Rd = Rs & Rt;}});
+ 0x5: or({{ Rd = Rs | Rt;}});
+ 0x6: xor({{ Rd = Rs ^ Rt;}});
+ 0x7: nor({{ Rd = ~(Rs | Rt);}});
}
}
@@ -141,8 +140,8 @@ decode OPCODE_HI default Unknown::unknown() {
}
0x6: decode FUNCTION_LO {
- format BasicOp {
- 0x0: tge({{ cond = (Rs.sw >= Rt.sw); }});
+ format Trap {
+ 0x0: tge({{ cond = (Rs.sw >= Rt.sw); }});
0x1: tgeu({{ cond = (Rs.uw >= Rt.uw); }});
0x2: tlt({{ cond = (Rs.sw < Rt.sw); }});
0x3: tltu({{ cond = (Rs.uw >= Rt.uw); }});
@@ -167,7 +166,7 @@ decode OPCODE_HI default Unknown::unknown() {
}
0x1: decode REGIMM_LO {
- format BasicOp {
+ format Trap {
0x0: tgei( {{ cond = (Rs.sw >= INTIMM); }});
0x1: tgeiu({{ cond = (Rs.uw >= INTIMM); }});
0x2: tlti( {{ cond = (Rs.sw < INTIMM); }});
@@ -198,14 +197,14 @@ decode OPCODE_HI default Unknown::unknown() {
}
format Jump {
- 0x2: j({{ NNPC = (NPC & 0xF0000000) & (0x00000000 & JMPTARG << 2);}});
+ 0x2: j({{ NNPC = (NPC & 0xF0000000) | (JMPTARG << 2);}});
- 0x3: jal({{ NNPC = (NPC & 0xF0000000) & (0x00000000 & JMPTARG << 2);}},IsCall,IsReturn);
+ 0x3: jal({{ NNPC = (NPC & 0xF0000000) | (JMPTARG << 2); }},IsCall,IsReturn);
}
format Branch {
- 0x4: beq({{ cond = (Rs.sw == 0); }});
- 0x5: bne({{ cond = (Rs.sw != 0); }});
+ 0x4: beq({{ cond = (Rs.sw == Rt.sw); }});
+ 0x5: bne({{ cond = (Rs.sw != Rt.sw); }});
0x6: blez({{ cond = (Rs.sw <= 0); }});
0x7: bgtz({{ cond = (Rs.sw > 0); }});
}
@@ -213,10 +212,10 @@ decode OPCODE_HI default Unknown::unknown() {
0x1: decode OPCODE_LO {
format IntOp {
- 0x0: addi({{ Rt.sw = Rs.sw + INTIMM; }});
- 0x1: addiu({{ Rt.uw = Rs.uw + INTIMM;}});
- 0x2: slti({{ Rt.sw = ( Rs.sw < INTIMM ) ? 1 : 0 }});
- 0x3: sltiu({{ Rt.uw = ( Rs.uw < INTIMM ) ? 1 : 0 }});
+ 0x0: addi({{ Rt.sw = Rs.sw + imm; /*Trap If Overflow*/}});
+ 0x1: addiu({{ Rt.sw = Rs.sw + imm;}});
+ 0x2: slti({{ Rt.sw = ( Rs.sw < imm) ? 1 : 0 }});
+ 0x3: sltiu({{ Rt.sw = ( Rs.sw < imm ) ? 1 : 0 }});
0x4: andi({{ Rt.sw = Rs.sw & INTIMM;}});
0x5: ori({{ Rt.sw = Rs.sw | INTIMM;}});
0x6: xori({{ Rt.sw = Rs.sw ^ INTIMM;}});
@@ -229,33 +228,17 @@ decode OPCODE_HI default Unknown::unknown() {
//Table A-11 MIPS32 COP0 Encoding of rs Field
0x0: decode RS_MSB {
0x0: decode RS {
- format BasicOp {
+ format System {
0x0: mfc0({{
- //The contents of the coprocessor 0 register specified by the
- //combination of rd and sel are loaded into general register
- //rt. Note that not all coprocessor 0 registers support the
- //sel field. In those instances, the sel field must be zero.
-
- if (SEL > 0)
- panic("Can't Handle Cop0 with register select yet\n");
-
- uint64_t reg_num = Rd.uw;
+ //uint64_t reg_num = Rd.uw;
- Rt = xc->miscRegs.cop0[reg_num];
+ Rt = xc->readMiscReg(RD,SEL);
}});
0x4: mtc0({{
- //The contents of the coprocessor 0 register specified by the
- //combination of rd and sel are loaded into general register
- //rt. Note that not all coprocessor 0 registers support the
- //sel field. In those instances, the sel field must be zero.
-
- if (SEL > 0)
- panic("Can't Handle Cop0 with register select yet\n");
+ //uint64_t reg_num = Rd.uw;
- uint64_t reg_num = Rd.uw;
-
- xc->miscRegs.cop0[reg_num] = Rt;
+ xc->setMiscReg(RD,SEL,Rt);
}});
0x8: mftr({{
@@ -279,64 +262,84 @@ decode OPCODE_HI default Unknown::unknown() {
0xA: rdpgpr({{
//Accessing Previous Shadow Set Register Number
- uint64_t prev = xc->miscRegs.cop0[SRSCtl][PSS];
- uint64_t reg_num = Rt.uw;
+ //uint64_t prev = xc->readMiscReg(SRSCtl)/*[PSS]*/;
+ //uint64_t reg_num = Rt.uw;
- Rd = xc->shadowIntRegFile[prev][reg_num];
+ //Rd = xc->regs.IntRegFile[prev];
+ //Rd = xc->shadowIntRegFile[prev][reg_num];
}});
0xB: decode RD {
0x0: decode SC {
0x0: dvpe({{
- Rt.sw = xc->miscRegs.cop0.MVPControl;
- xc->miscRegs.cop0.MVPControl[EVP] = 0;
+ int idx;
+ int sel;
+ getMiscRegIdx(MVPControl,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,0);
}});
0x1: evpe({{
- Rt.sw = xc->miscRegs.cop0.MVPControl;
- xc->miscRegs.cop0.MVPControl[EVP] = 1;
+ int idx;
+ int sel;
+ getMiscRegIdx(MVPControl,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,1);
}});
}
0x1: decode SC {
0x0: dmt({{
- Rt.sw = xc->miscRegs.cop0.VPEControl;
- xc->miscRegs.cop0.VPEControl[THREAD_ENABLE] = 0;
+ int idx;
+ int sel;
+ getMiscRegIdx(VPEControl,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,0);
}});
0x1: emt({{
- Rt.sw = xc->miscRegs.cop0.VPEControl;
- xc->miscRegs.cop0.VPEControl[THREAD_ENABLE] = 1;
+ int idx;
+ int sel;
+ getMiscRegIdx(VPEControl,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,1);
}});
}
0xC: decode SC {
0x0: di({{
- Rt.sw = xc->miscRegs.cop0.Status;
- xc->miscRegs.cop0.Status[INTERRUPT_ENABLE] = 0;
+ int idx;
+ int sel;
+ getMiscRegIdx(Status,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,0);
}});
0x1: ei({{
- Rt.sw = xc->miscRegs.cop0.Status;
- xc->miscRegs.cop0.Status[INTERRUPT_ENABLE] = 1;
+ int idx;
+ int sel;
+ getMiscRegIdx(Status,idx,sel);
+ Rt.sw = xc->readMiscReg(idx,sel);
+ xc->setMiscReg(idx,sel,1);
}});
}
}
0xE: wrpgpr({{
//Accessing Previous Shadow Set Register Number
- uint64_t prev = xc->miscRegs.cop0[SRSCtl][PSS];
- uint64_t reg_num = Rd.uw;
+ //uint64_t prev = xc->readMiscReg(SRSCtl/*[PSS]*/);
+ //uint64_t reg_num = Rd.uw;
- xc->shadowIntRegFile[prev][reg_num] = Rt;
+ //xc->regs.IntRegFile[prev];
+ //xc->shadowIntRegFile[prev][reg_num] = Rt;
}});
}
}
//Table A-12 MIPS32 COP0 Encoding of Function Field When rs=CO
0x1: decode FUNCTION {
- format BasicOp {
+ format System {
0x01: tlbr({{ }});
0x02: tlbwi({{ }});
0x06: tlbwr({{ }});
@@ -357,27 +360,27 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode RS_HI {
0x0: decode RS_LO {
format FloatOp {
- 0x0: mfc1({{ Rt = Fs<31:0>; }});
- 0x2: cfc1({{ Rt = xc->miscRegs.fpcr[Fs];}});
- 0x3: mfhc1({{ Rt = Fs<63:32>;}});
- 0x4: mtc1({{ Fs<31:0> = Rt}});
- 0x6: ctc1({{ xc->miscRegs.fpcr[Fs] = Rt;}});
- 0x7: mftc1({{ Fs<63:32> = Rt}});
+ 0x0: mfc1({{ /*Rt.uw = Fs.ud<31:0>;*/ }});
+ 0x2: cfc1({{ /*Rt.uw = xc->readMiscReg(FPCR[Fs]);*/}});
+ 0x3: mfhc1({{ /*Rt.uw = Fs.ud<63:32>*/;}});
+ 0x4: mtc1({{ /*Fs = Rt.uw*/}});
+ 0x6: ctc1({{ /*xc->setMiscReg(FPCR[Fs],Rt);*/}});
+ 0x7: mthc1({{ /*Fs<63:32> = Rt.uw*/}});
}
}
0x1: decode ND {
0x0: decode TF {
format Branch {
- 0x0: bc1f({{ cond = (xc->miscRegs.fpcr == 0); }});
- 0x1: bc1t({{ cond = (xc->miscRegs.fpcr == 1); }});
+ 0x0: bc1f({{ cond = (xc->readMiscReg(FPCR,0) == 0); }});
+ 0x1: bc1t({{ cond = (xc->readMiscReg(FPCR,0) == 1); }});
}
}
0x1: decode TF {
format BranchLikely {
- 0x0: bc1fl({{ cond = (xc->miscRegs.fpcr == 0); }});
- 0x1: bc1tl({{ cond = (xc->miscRegs.fpcr == 1); }});
+ 0x0: bc1fl({{ cond = (xc->readMiscReg(FPCR,0) == 0); }});
+ 0x1: bc1tl({{ cond = (xc->readMiscReg(FPCR,0) == 1); }});
}
}
}
@@ -396,7 +399,7 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: muls({{ Fd.sf = Fs.sf * Ft.sf;}});
0x3: divs({{ Fd.sf = Fs.sf / Ft.sf;}});
0x4: sqrts({{ Fd.sf = sqrt(Fs.sf);}});
- 0x5: abss({{ Fd.sf = abs(Fs.sf);}});
+ 0x5: abss({{ Fd.sf = fabs(Fs.sf);}});
0x6: movs({{ Fd.sf = Fs.sf;}});
0x7: negs({{ Fd.sf = -1 * Fs.sf;}});
}
@@ -422,8 +425,8 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: decode RS_LO {
0x1: decode MOVCF {
format FloatOp {
- 0x0: movfs({{ if ( FPConditionCode(CC) == 0 ) Fd = Fs; }});
- 0x1: movts({{ if ( FPConditionCode(CC) == 1 ) Fd = Fs;}});
+ 0x0: movfs({{if (xc->readMiscReg(FPCR,0) != CC) Fd = Fs; }});
+ 0x1: movts({{if (xc->readMiscReg(FPCR,0) == CC) Fd = Fs;}});
}
}
@@ -434,29 +437,29 @@ decode OPCODE_HI default Unknown::unknown() {
format Float64Op {
0x5: recips({{ Fd = 1 / Fs; }});
- 0x6: rsqrts({{ Fd = 1 / sqrt(Fs.ud);}});
+ 0x6: rsqrts({{ Fd = 1 / sqrt((double)Fs.ud);}});
}
}
0x4: decode RS_LO {
format FloatOp {
- 0x1: cvt_d_s({{ int rnd_mode = xc->miscRegs.fcsr;
+ 0x1: cvt_d_s({{ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.sf,rnd_mode,FP_DOUBLE,FP_SINGLE);
}});
- 0x4: cvt_w_s({{ int rnd_mode = xc->miscRegs.fcsr;
+ 0x4: cvt_w_s({{ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.sf,rnd_mode,FP_WORD,FP_SINGLE);
}});
}
//only legal for 64 bit
format Float64Op {
- 0x5: cvt_l_s({{ int rnd_mode = xc->miscRegs.fcsr;
+ 0x5: cvt_l_s({{ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.sf,rnd_mode,FP_LONG,FP_SINGLE);
}});
- 0x6: cvt_ps_s({{ Fd.df = Fs.df<31:0> | Ft.df<31:0>; }});
+ 0x6: cvt_ps_s({{ /*Fd.df = Fs.df<31:0> | Ft.df<31:0>;*/ }});
}
}
}
@@ -470,7 +473,7 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: muld({{ Fd.df = Fs.df * Ft.df;}});
0x3: divd({{ Fd.df = Fs.df / Ft.df;}});
0x4: sqrtd({{ Fd.df = sqrt(Fs.df);}});
- 0x5: absd({{ Fd.df = abs(Fs.df);}});
+ 0x5: absd({{ Fd.df = fabs(Fs.df);}});
0x6: movd({{ Fd.df = Fs.df;}});
0x7: negd({{ Fd.df = -1 * Fs.df;}});
}
@@ -496,8 +499,8 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: decode RS_LO {
0x1: decode MOVCF {
format FloatOp {
- 0x0: movfd({{ if (FPConditionCode(CC) == 0) Fd.df = Fs.df; }});
- 0x1: movtd({{ if (FPConditionCode(CC) == 1) Fd.df = Fs.df; }});
+ 0x0: movfd({{if (xc->readMiscReg(FPCR,0) != CC) Fd.df = Fs.df; }});
+ 0x1: movtd({{if (xc->readMiscReg(FPCR,0) == CC) Fd.df = Fs.df; }});
}
}
@@ -515,12 +518,12 @@ decode OPCODE_HI default Unknown::unknown() {
0x4: decode RS_LO {
format FloatOp {
0x0: cvt_s_d({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_SINGLE,FP_DOUBLE);
}});
0x4: cvt_w_d({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_WORD,FP_DOUBLE);
}});
}
@@ -528,7 +531,7 @@ decode OPCODE_HI default Unknown::unknown() {
//only legal for 64 bit
format Float64Op {
0x5: cvt_l_d({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_LONG,FP_DOUBLE);
}});
}
@@ -539,12 +542,12 @@ decode OPCODE_HI default Unknown::unknown() {
0x4: decode FUNCTION {
format FloatOp {
0x20: cvt_s({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_SINGLE,FP_WORD);
}});
0x21: cvt_d({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_DOUBLE,FP_WORD);
}});
}
@@ -556,12 +559,12 @@ decode OPCODE_HI default Unknown::unknown() {
0x5: decode FUNCTION_HI {
format FloatOp {
0x10: cvt_s_l({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_SINGLE,FP_LONG);
}});
0x11: cvt_d_l({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_DOUBLE,FP_LONG);
}});
}
@@ -590,12 +593,12 @@ decode OPCODE_HI default Unknown::unknown() {
0x5: absps({{ //Must Check for Exception Here... Supposed to Operate on Upper and
//Lower Halves Independently but we take simulator shortcut
- Fd.df = abs(Fs.df);
+ Fd.df = fabs(Fs.df);
}});
0x6: movps({{ //Must Check for Exception Here... Supposed to Operate on Upper and
//Lower Halves Independently but we take simulator shortcut
- Fd.df = Fs<31:0> | Ft<31:0>;
+ //Fd.df = Fs<31:0> | Ft<31:0>;
}});
0x7: negps({{ //Must Check for Exception Here... Supposed to Operate on Upper and
@@ -608,21 +611,21 @@ decode OPCODE_HI default Unknown::unknown() {
0x2: decode RS_LO {
0x1: decode MOVCF {
format Float64Op {
- 0x0: movfps({{ if ( FPConditionCode(CC) == 0) Fd = Fs;}});
- 0x1: movtps({{ if ( FPConditionCode(CC) == 0) Fd = Fs;}});
+ 0x0: movfps({{if (xc->readMiscReg(FPCR,0) != CC) Fd = Fs;}});
+ 0x1: movtps({{if (xc->readMiscReg(FPCR,0) == CC) Fd = Fs;}});
}
}
format BasicOp {
- 0x2: movzps({{ if ( FPConditionCode(CC) == 0) Fd = Fs; }});
- 0x3: movnps({{ if ( FPConditionCode(CC) == 0) Fd = Fs; }});
+ 0x2: movzps({{if (xc->readMiscReg(FPCR,0) != CC) Fd = Fs; }});
+ 0x3: movnps({{if (xc->readMiscReg(FPCR,0) == CC) Fd = Fs; }});
}
}
0x4: decode RS_LO {
0x0: Float64Op::cvt_s_pu({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_DOUBLE,FP_PS_HI);
}});
}
@@ -630,13 +633,13 @@ decode OPCODE_HI default Unknown::unknown() {
0x5: decode RS_LO {
format Float64Op {
0x0: cvt_s_pl({{
- int rnd_mode = xc->miscRegs.fcsr;
+ int rnd_mode = xc->readMiscReg(FCSR,0);
Fd = convert_and_round(Fs.df,rnd_mode,FP_SINGLE,FP_PS_LO);
}});
- 0x4: pll({{ Fd.df = Fs<31:0> | Ft<31:0>}});
- 0x5: plu({{ Fd.df = Fs<31:0> | Ft<63:32>}});
- 0x6: pul({{ Fd.df = Fs<63:32> | Ft<31:0>}});
- 0x7: puu({{ Fd.df = Fs<63:32 | Ft<63:32>}});
+ 0x4: pll({{ /*Fd.df = Fs<31:0> | Ft<31:0>*/}});
+ 0x5: plu({{ /*Fd.df = Fs<31:0> | Ft<63:32>*/}});
+ 0x6: pul({{ /*Fd.df = Fs<63:32> | Ft<31:0>*/}});
+ 0x7: puu({{ /*Fd.df = Fs<63:32 | Ft<63:32>*/}});
}
}
}
@@ -682,23 +685,23 @@ decode OPCODE_HI default Unknown::unknown() {
0x3: decode FUNCTION_HI {
0x0: decode FUNCTION_LO {
format LoadMemory2 {
- 0x0: lwxc1({{ EA = Rs + Rt; }},{{ Ft<31:0> = Mem.sf; }});
- 0x1: ldxc1({{ EA = Rs + Rt; }},{{ Ft<63:0> = Mem.df; }});
+ 0x0: lwxc1({{ EA = Rs + Rt; }},{{ /*F_t<31:0> = Mem.sf; */}});
+ 0x1: ldxc1({{ EA = Rs + Rt; }},{{ /*F_t<63:0> = Mem.df;*/ }});
0x5: luxc1({{ //Need to make EA<2:0> = 0
EA = Rs + Rt;
}},
- {{ Ft<31:0> = Mem.df; }});
+ {{ /*F_t<31:0> = Mem.df; */}});
}
}
0x1: decode FUNCTION_LO {
format StoreMemory2 {
- 0x0: swxc1({{ EA = Rs + Rt; }},{{ Mem.sf = Ft<31:0>; }});
- 0x1: sdxc1({{ EA = Rs + Rt; }},{{ Mem.df = Ft<63:0>}});
+ 0x0: swxc1({{ EA = Rs + Rt; }},{{ /*Mem.sf = Ft<31:0>; */}});
+ 0x1: sdxc1({{ EA = Rs + Rt; }},{{ /*Mem.df = Ft<63:0> */}});
0x5: suxc1({{ //Need to make EA<2:0> = 0
EA = Rs + Rt;
}},
- {{ Mem.df = Ft<63:0>;}});
+ {{ /*Mem.df = F_t<63:0>;*/}});
}
0x7: WarnUnimpl::prefx();
@@ -768,33 +771,33 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode FUNCTION_LO {
format IntOp {
0x0: madd({{
- int64_t temp1 = Hi.sw << 32 | Lo.sw >> 32;
+ int64_t temp1 = xc->readMiscReg(Hi,0) << 32 | xc->readMiscReg(Lo,0) >> 32;
temp1 = temp1 + (Rs.sw * Rt.sw);
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
0x1: maddu({{
- int64_t temp1 = Hi.uw << 32 | Lo.uw >> 32;
+ int64_t temp1 = xc->readMiscReg(Hi,0) << 32 | xc->readMiscReg(Lo,0) >> 32;
temp1 = temp1 + (Rs.uw * Rt.uw);
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
- 0x2: mul({{ Rd.sw = Rs.sw * Rt.sw; }});
+ 0x2: mul({{ Rd.sw = Rs.sw * Rt.sw; }});
0x4: msub({{
- int64_t temp1 = Hi.sw << 32 | Lo.sw >> 32;
+ int64_t temp1 = xc->readMiscReg(Hi,0) << 32 | xc->readMiscReg(Lo,0) >> 32;
temp1 = temp1 - (Rs.sw * Rt.sw);
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
0x5: msubu({{
- int64_t temp1 = Hi.uw << 32 | Lo.uw >> 32;
+ int64_t temp1 = xc->readMiscReg(Hi,0) << 32 | xc->readMiscReg(Lo,0) >> 32;
temp1 = temp1 - (Rs.uw * Rt.uw);
- xc->miscRegs.hi->temp1<63:32>;
- xc->miscRegs.lo->temp1<31:0>
+ xc->setMiscReg(Hi,0,temp1<63:32>);
+ xc->setMiscReg(Lo,0,temp1<31:0>);
}});
}
}
@@ -802,25 +805,25 @@ decode OPCODE_HI default Unknown::unknown() {
0x4: decode FUNCTION_LO {
format BasicOp {
0x0: clz({{
- int cnt = 0;
+ /*int cnt = 0;
int idx = 0;
- while ( Rs.uw<idx>!= 1) {
+ while ( Rs.uw<idx> != 1) {
cnt++;
idx--;
}
- Rd.uw = cnt;
+ Rd.uw = cnt;*/
}});
0x1: clo({{
- int cnt = 0;
+ /*int cnt = 0;
int idx = 0;
- while ( Rs.uw<idx>!= 0) {
+ while ( Rs.uw<idx> != 0) {
cnt++;
idx--;
}
- Rd.uw = cnt;
+ Rd.uw = cnt;*/
}});
}
}
@@ -860,20 +863,20 @@ decode OPCODE_HI default Unknown::unknown() {
}
0x6: decode FUNCTION_LO {
- 0x7: BasicOp::rdhwr({{ Rt = xc->hwRegs[RD];}});
+ 0x7: BasicOp::rdhwr({{ /*Rt = xc->hwRegs[RD];*/ }});
}
}
}
0x4: decode OPCODE_LO default FailUnimpl::reserved() {
format LoadMemory {
- 0x0: lb({{ Rb.sw = Mem.sb; }});
- 0x1: lh({{ Rb.sw = Mem.sh; }});
- 0x2: lwl({{ Rb.sw = Mem.sw; }});//, WordAlign);
- 0x3: lw({{ Rb.uq = Mem.sb; }});
- 0x4: lbu({{ Rb.uw = Mem.ub; }});
- 0x5: lhu({{ Rb.uw = Mem.uh; }});
- 0x6: lwr({{ Rb.uw = Mem.uw; }});//, WordAlign);
+ 0x0: lb({{ Rt.sw = Mem.sb; }});
+ 0x1: lh({{ Rt.sw = Mem.sh; }});
+ 0x2: lwl({{ Rt.sw = Mem.sw; }});//, WordAlign);
+ 0x3: lw({{ Rt.sw = Mem.sb; }});
+ 0x4: lbu({{ Rt.uw = Mem.ub; }});
+ 0x5: lhu({{ Rt.uw = Mem.uh; }});
+ 0x6: lwr({{ Rt.uw = Mem.uw; }});//, WordAlign);
}
0x7: FailUnimpl::reserved();
@@ -898,19 +901,19 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: WarnUnimpl::ll();
format LoadMemory {
- 0x1: lwc1({{ Ft<31:0> = Mem.sf; }});
- 0x5: ldc1({{ Ft<63:0> = Mem.df; }});
+ 0x1: lwc1({{ /*F_t<31:0> = Mem.sf; */}});
+ 0x5: ldc1({{ /*F_t<63:0> = Mem.df; */}});
}
}
+
0x7: decode OPCODE_LO default FailUnimpl::reserved() {
0x0: WarnUnimpl::sc();
format StoreMemory {
- 0x1: swc1({{ Mem.sf = Ft<31:0>; }});
- 0x5: sdc1({{ Mem.df = Ft<63:0>; }});
+ 0x1: swc1({{ //Mem.sf = Ft<31:0>; }});
+ 0x5: sdc1({{ //Mem.df = Ft<63:0>; }});
}
-
}
}
diff --git a/arch/mips/isa/formats.isa b/arch/mips/isa/formats.isa
index a6aec9437..f7a9e4ce2 100644
--- a/arch/mips/isa/formats.isa
+++ b/arch/mips/isa/formats.isa
@@ -10,6 +10,9 @@
//Include utility formats/functions
##include "m5/arch/mips/isa/formats/util.isa"
+//Include the cop0 formats
+##include "m5/arch/mips/isa/formats/cop0.isa"
+
//Include the integer formats
##include "m5/arch/mips/isa/formats/int.isa"
diff --git a/arch/mips/isa/formats/basic.isa b/arch/mips/isa/formats/basic.isa
index 3b62aa5c3..c02af7ddc 100644
--- a/arch/mips/isa/formats/basic.isa
+++ b/arch/mips/isa/formats/basic.isa
@@ -31,14 +31,14 @@ def template BasicConstructor {{
def template BasicExecute {{
Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
{
- Fault fault = No_Fault;
+ Fault fault = NoFault;
%(fp_enable_check)s;
%(op_decl)s;
%(op_rd)s;
%(code)s;
- if(fault == No_Fault)
+ if(fault == NoFault)
{
%(op_wb)s;
}
diff --git a/arch/mips/isa/formats/branch.isa b/arch/mips/isa/formats/branch.isa
index c896e9b2d..0d2ad7855 100644
--- a/arch/mips/isa/formats/branch.isa
+++ b/arch/mips/isa/formats/branch.isa
@@ -7,6 +7,9 @@
output header {{
+#include <iostream>
+ using namespace std;
+
/**
* Base class for instructions whose disassembly is not purely a
* function of the machine instruction (i.e., it depends on the
@@ -52,6 +55,10 @@ output header {{
: PCDependentDisassembly(mnem, _machInst, __opClass),
disp(OFFSET << 2)
{
+ //If Bit 17 is 1 then Sign Extend
+ if ( (disp & 0x00020000) > 0 ) {
+ disp |= 0xFFFE0000;
+ }
}
Addr branchTarget(Addr branchPC) const;
@@ -74,6 +81,7 @@ output header {{
: PCDependentDisassembly(mnem, _machInst, __opClass),
disp(OFFSET << 2)
{
+
}
Addr branchTarget(Addr branchPC) const;
@@ -93,11 +101,13 @@ output header {{
/// Displacement to target address (signed).
int32_t disp;
+ uint32_t target;
+
public:
/// Constructor
Jump(const char *mnem, MachInst _machInst, OpClass __opClass)
: PCDependentDisassembly(mnem, _machInst, __opClass),
- disp(OFFSET)
+ disp(JMPTARG << 2)
{
}
@@ -159,23 +169,17 @@ output decoder {{
// either a source (the condition for conditional
// branches) or a destination (the link reg for
// unconditional branches)
- if (_numSrcRegs > 0) {
+ if (_numSrcRegs == 1) {
printReg(ss, _srcRegIdx[0]);
ss << ",";
- }
- else if (_numDestRegs > 0) {
- printReg(ss, _destRegIdx[0]);
+ } else if(_numSrcRegs == 2) {
+ printReg(ss, _srcRegIdx[0]);
ss << ",";
- }
-
-#ifdef SS_COMPATIBLE_DISASSEMBLY
- if (_numSrcRegs == 0 && _numDestRegs == 0) {
- printReg(ss, 31);
+ printReg(ss, _srcRegIdx[1]);
ss << ",";
}
-#endif
- Addr target = pc + 4 + disp;
+ Addr target = pc + 8 + disp;
std::string str;
if (symtab && symtab->findSymbol(target, str))
@@ -206,13 +210,6 @@ output decoder {{
ss << ",";
}
-#ifdef SS_COMPATIBLE_DISASSEMBLY
- if (_numSrcRegs == 0 && _numDestRegs == 0) {
- printReg(ss, 31);
- ss << ",";
- }
-#endif
-
Addr target = pc + 4 + disp;
std::string str;
@@ -231,20 +228,25 @@ output decoder {{
ccprintf(ss, "%-10s ", mnemonic);
-#ifdef SS_COMPATIBLE_DISASSEMBLY
- if (_numDestRegs == 0) {
- printReg(ss, 31);
- ss << ",";
- }
-#endif
-
- if (_numDestRegs > 0) {
- printReg(ss, _destRegIdx[0]);
+ if ( mnemonic == "jal" ) {
+ Addr npc = pc + 4;
+ ccprintf(ss,"0x%x",(npc & 0xF0000000) | disp);
+ } else if (_numSrcRegs == 0) {
+ std::string str;
+ if (symtab && symtab->findSymbol(disp, str))
+ ss << str;
+ else
+ ccprintf(ss, "0x%x", disp);
+ } else if (_numSrcRegs == 1) {
+ printReg(ss, _srcRegIdx[0]);
+ } else if(_numSrcRegs == 2) {
+ printReg(ss, _srcRegIdx[0]);
ss << ",";
+ printReg(ss, _srcRegIdx[1]);
+ } else {
+ panic(">= 3 Source Registers!!!");
}
- ccprintf(ss, "(r%d)", RT);
-
return ss.str();
}
}};
@@ -253,16 +255,18 @@ def format Branch(code,*flags) {{
#Add Link Code if Link instruction
strlen = len(name)
if name[strlen-2:] == 'al':
- code += 'R31 = NNPC;\n'
+ code += 'r31 = NNPC;\n'
#Condition code
code = 'bool cond;\n' + code
code += 'if (cond) {\n'
- #code += '//NPC=NPC: just placeholder to force parser to writeback NPC\n'
- #code += ' NPC = NPC; \n'
code += ' NNPC = NPC + disp;\n'
+ code += '} else {\n'
+ code += ' NNPC = NNPC;\n'
code += '} \n'
+ code += 'cout << hex << "NPC: " << NPC << " + " << disp << " = " << NNPC << endl;'
+
iop = InstObjParams(name, Name, 'Branch', CodeBlock(code),
('IsDirectControl', 'IsCondControl'))
@@ -277,13 +281,11 @@ def format BranchLikely(code,*flags) {{
#Add Link Code if Link instruction
strlen = len(name)
if name[strlen-3:] == 'all':
- code += 'R31 = NNPC;\n'
+ code += 'r31 = NNPC;\n'
#Condition code
code = 'bool cond;\n' + code
code += 'if (cond) {'
- #code += '//NPC=NPC: just placeholder to force parser to writeback NPC\n'
- #code += 'NPC = NPC; \n'
code += 'NNPC = NPC + disp;\n'
code += '} \n'
@@ -300,8 +302,11 @@ def format BranchLikely(code,*flags) {{
def format Jump(code,*flags) {{
#Add Link Code if Link instruction
strlen = len(name)
- if strlen >= 3 and name[2:3] == 'al':
- code = 'R31 = NNPC;\n' + code
+ if strlen > 1 and name[1:] == 'al':
+ code = 'r31 = NNPC;\n' + code
+
+ #code += 'if(NNPC == 0x80000638) { NNPC = r31; cout << "SKIPPING JUMP TO SIM_GET_MEM_CONF" << endl;}'
+ #code += 'target = NNPC;'
iop = InstObjParams(name, Name, 'Jump', CodeBlock(code),\
('IsIndirectControl', 'IsUncondControl'))
diff --git a/arch/mips/isa/formats/fp.isa b/arch/mips/isa/formats/fp.isa
index 7dd1e8442..34b71acf7 100644
--- a/arch/mips/isa/formats/fp.isa
+++ b/arch/mips/isa/formats/fp.isa
@@ -29,47 +29,6 @@ output decoder {{
}
}};
-def template FloatingPointExecute {{
- Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
- {
- //These are set to constants when the execute method
- //is generated
- bool useCc = ;
- bool checkPriv = ;
-
- //Attempt to execute the instruction
- try
- {
- checkPriv;
-
- %(op_decl)s;
- %(op_rd)s;
- %(code)s;
- }
- //If we have an exception for some reason,
- //deal with it
- catch(MipsException except)
- {
- //Deal with exception
- return No_Fault;
- }
-
- //Write the resulting state to the execution context
- %(op_wb)s;
- if(useCc)
- {
- xc->regs.miscRegFile.ccrFields.iccFields.n = Rd & (1 << 63);
- xc->regs.miscRegFile.ccrFields.iccFields.z = (Rd == 0);
- xc->regs.miscRegFile.ccrFields.iccFields.v = ivValue;
- xc->regs.miscRegFile.ccrFields.iccFields.c = icValue;
- xc->regs.miscRegFile.ccrFields.xccFields.n = Rd & (1 << 31);
- xc->regs.miscRegFile.ccrFields.xccFields.z = ((Rd & 0xFFFFFFFF) == 0);
- xc->regs.miscRegFile.ccrFields.xccFields.v = xvValue;
- xc->regs.miscRegFile.ccrFields.xccFields.c = xcValue;
- }
- return No_Fault;
- }
-}};
// Primary format for integer operate instructions:
def format FloatOp(code, *flags) {{
diff --git a/arch/mips/isa/formats/int.isa b/arch/mips/isa/formats/int.isa
index cf06741a1..a47844bee 100644
--- a/arch/mips/isa/formats/int.isa
+++ b/arch/mips/isa/formats/int.isa
@@ -7,6 +7,8 @@
//Outputs to decoder.hh
output header {{
+#include <iostream>
+ using namespace std;
/**
* Base class for integer operations.
*/
@@ -26,15 +28,24 @@ output header {{
class IntImmOp : public MipsStaticInst
{
protected:
- uint16_t imm;
+
+ int32_t imm;
/// Constructor
IntImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM)
{
+ //If Bit 15 is 1 then Sign Extend
+ int32_t temp = imm & 0x00008000;
+
+ if (temp > 0 && mnemonic != "lui") {
+ imm |= 0xFFFF0000;
+ }
}
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+
};
}};
@@ -43,15 +54,59 @@ output header {{
output decoder {{
std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
- return "Disassembly of integer instruction\n";
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ // just print the first dest... if there's a second one,
+ // it's generally implicit
+ if (_numDestRegs > 0) {
+ printReg(ss, _destRegIdx[0]);
+ }
+
+ ss << ",";
+
+ // just print the first two source regs... if there's
+ // a third one, it's a read-modify-write dest (Rc),
+ // e.g. for CMOVxx
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if (_numSrcRegs > 1) {
+ ss << ",";
+ printReg(ss, _srcRegIdx[1]);
+ }
+
+ return ss.str();
}
std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
- return "Disassembly of integer immediate instruction\n";
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ if (_numDestRegs > 0) {
+ printReg(ss, _destRegIdx[0]);
+ }
+
+ ss << ",";
+
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ ss << ",";
+ }
+
+ if( mnemonic == "lui")
+ ccprintf(ss, "%08p ", imm);
+ else
+ ss << (int) imm;
+
+ return ss.str();
}
-}};
+}};
//Used by decoder.isa
def format IntOp(code, *opt_flags) {{
diff --git a/arch/mips/isa/formats/mem.isa b/arch/mips/isa/formats/mem.isa
index fcdb577c6..8a07e63d4 100644
--- a/arch/mips/isa/formats/mem.isa
+++ b/arch/mips/isa/formats/mem.isa
@@ -40,6 +40,7 @@ output header {{
const StaticInstPtr eaCompPtr;
/// Pointer to MemAcc object.
const StaticInstPtr memAccPtr;
+
/// Displacement for EA calculation (signed).
int32_t disp;
@@ -51,6 +52,12 @@ output header {{
memAccessFlags(0), eaCompPtr(_eaCompPtr), memAccPtr(_memAccPtr),
disp(OFFSET)
{
+ //If Bit 15 is 1 then Sign Extend
+ int32_t temp = disp & 0x00008000;
+
+ if (temp > 0) {
+ disp |= 0xFFFF0000;
+ }
}
std::string
@@ -70,7 +77,7 @@ output decoder {{
Memory::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return csprintf("%-10s %c%d,%d(r%d)", mnemonic,
- flags[IsFloating] ? 'f' : 'r', RS, JMPTARG, RT);
+ flags[IsFloating] ? 'f' : 'r', RT, disp, RS);
}
}};
diff --git a/arch/mips/isa/formats/noop.isa b/arch/mips/isa/formats/noop.isa
index 05c5ac10f..d35179005 100644
--- a/arch/mips/isa/formats/noop.isa
+++ b/arch/mips/isa/formats/noop.isa
@@ -59,7 +59,7 @@ output exec {{
Fault
Nop::execute(%(CPU_exec_context)s *, Trace::InstRecord *) const
{
- return No_Fault;
+ return NoFault;
}
}};
@@ -68,9 +68,11 @@ output exec {{
def template OperateNopCheckDecode {{
{
MipsStaticInst *i = new %(class_name)s(machInst);
- if (RD == 0) {
- i = makeNop(i);
- }
+
+ //if (RD == 0) {
+ // i = makeNop(i);
+ //}
+
return i;
}
}};
diff --git a/arch/mips/isa/formats/trap.isa b/arch/mips/isa/formats/trap.isa
index 78f8d87b0..6884d4fa8 100644
--- a/arch/mips/isa/formats/trap.isa
+++ b/arch/mips/isa/formats/trap.isa
@@ -42,12 +42,11 @@ def template TrapExecute {{
}};
// Primary format for integer operate instructions:
-def format Trap(code, *opt_flags) {{
- orig_code = code
- cblk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'MipsStaticInst', cblk, opt_flags)
+def format Trap(code, *flags) {{
+ code = 'bool cond;\n' + code;
+ iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
- exec_output = TrapExecute.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
}};
diff --git a/arch/mips/isa/formats/unimp.isa b/arch/mips/isa/formats/unimp.isa
index a7a71c681..adbd5b5b1 100644
--- a/arch/mips/isa/formats/unimp.isa
+++ b/arch/mips/isa/formats/unimp.isa
@@ -111,7 +111,7 @@ output exec {{
{
panic("attempt to execute unimplemented instruction '%s' "
"(inst 0x%08x, opcode 0x%x)", mnemonic, machInst, OPCODE);
- return Unimplemented_Opcode_Fault;
+ return UnimplementedOpcodeFault;
}
Fault
@@ -123,7 +123,7 @@ output exec {{
warned = true;
}
- return No_Fault;
+ return NoFault;
}
}};
diff --git a/arch/mips/isa/formats/unknown.isa b/arch/mips/isa/formats/unknown.isa
index 6eba5b4f9..4601b3684 100644
--- a/arch/mips/isa/formats/unknown.isa
+++ b/arch/mips/isa/formats/unknown.isa
@@ -42,7 +42,7 @@ output exec {{
{
panic("attempt to execute unknown instruction "
"(inst 0x%08x, opcode 0x%x)", machInst, OPCODE);
- return Unimplemented_Opcode_Fault;
+ return UnimplementedOpcodeFault;
}
}};
diff --git a/arch/mips/isa/formats/util.isa b/arch/mips/isa/formats/util.isa
index c06877b35..db4bf204a 100644
--- a/arch/mips/isa/formats/util.isa
+++ b/arch/mips/isa/formats/util.isa
@@ -1,29 +1,6 @@
// -*- mode:c++ -*-
let {{
-def UncondCtrlBase(name, Name, base_class, npc_expr, flags):
- # Declare basic control transfer w/o link (i.e. link reg is R31)
- nolink_code = 'NPC = %s;\n' % npc_expr
- nolink_iop = InstObjParams(name, Name, base_class,
- CodeBlock(nolink_code), flags)
- header_output = BasicDeclare.subst(nolink_iop)
- decoder_output = BasicConstructor.subst(nolink_iop)
- exec_output = BasicExecute.subst(nolink_iop)
-
- # Generate declaration of '*AndLink' version, append to decls
- link_code = 'Ra = NPC & ~3;\n' + nolink_code
- link_iop = InstObjParams(name, Name + 'AndLink', base_class,
- CodeBlock(link_code), flags)
- header_output += BasicDeclare.subst(link_iop)
- decoder_output += BasicConstructor.subst(link_iop)
- exec_output += BasicExecute.subst(link_iop)
-
- # need to use link_iop for the decode template since it is expecting
- # the shorter version of class_name (w/o "AndLink")
-
- return (header_output, decoder_output,
- JumpOrBranchDecode.subst(nolink_iop), exec_output)
-
def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
postacc_code = '', base_class = 'Memory',
decode_template = BasicDecode, exec_template_base = ''):
@@ -116,10 +93,56 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
output exec {{
+using namespace MipsISA;
+
+
/// CLEAR ALL CPU INST/EXE HAZARDS
inline void
clear_exe_inst_hazards()
{
//CODE HERE
}
+
+
+ /// Check "FP enabled" machine status bit. Called when executing any FP
+ /// instruction in full-system mode.
+ /// @retval Full-system mode: NoFault if FP is enabled, FenFault
+ /// if not. Non-full-system mode: always returns NoFault.
+#if FULL_SYSTEM
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ Fault fault = NoFault; // dummy... this ipr access should not fault
+ if (!Mips34k::ICSR_FPE(xc->readIpr(MipsISA::IPR_ICSR, fault))) {
+ fault = FloatEnableFault;
+ }
+ return fault;
+ }
+#else
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ return NoFault;
+ }
+#endif
+
+ double convert_and_round(float w, int x, int y, int z)
+ {
+ double temp = .34000;
+
+ return temp;
+ }
+
+ enum FPTypes{
+ FP_SINGLE,
+ FP_DOUBLE,
+ FP_LONG,
+ FP_PS_LO,
+ FP_PS_HI,
+ FP_WORD,
+ RND_NEAREST,
+ RND_ZERO,
+ RND_UP,
+ RND_DOWN
+ };
}};
+
+
diff --git a/arch/mips/isa/operands.isa b/arch/mips/isa/operands.isa
index 65ef2245f..13870337b 100644
--- a/arch/mips/isa/operands.isa
+++ b/arch/mips/isa/operands.isa
@@ -16,21 +16,18 @@ def operands {{
'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1),
'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 2),
'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 3),
- 'R31': ('IntReg', 'uw','R31','IsInteger', 4),
+ 'r31': ('IntReg', 'uw','R31','IsInteger', 4),
+ 'R0': ('IntReg', 'uw','R0', 'IsInteger', 5),
'IntImm': ('IntReg', 'uw', 'INTIMM', 'IsInteger', 3),
- 'Sa': ('IntReg', 'uw', 'SA', 'IsInteger', 4),
'Fd': ('FloatReg', 'sf', 'FD', 'IsFloating', 1),
'Fs': ('FloatReg', 'sf', 'FS', 'IsFloating', 2),
'Ft': ('FloatReg', 'sf', 'FT', 'IsFloating', 3),
+ 'Fr': ('FloatReg', 'sf', 'FR', 'IsFloating', 3),
'Mem': ('Mem', 'ud', None, ('IsMemRef', 'IsLoad', 'IsStore'), 4),
'NPC': ('NPC', 'uw', None, ( None, None, 'IsControl' ), 4),
- 'NNPC': ('NNPC', 'uw', None, ( None, None, 'IsControl' ), 4)
- #'Runiq': ('ControlReg', 'uq', 'Uniq', None, 1),
- #'FPCR': ('ControlReg', 'uq', 'Fpcr', None, 1),
- # The next two are hacks for non-full-system call-pal emulation
- #'R0': ('IntReg', 'uq', '0', None, 1),
+ 'NNPC':('NNPC', 'uw', None, ( None, None, 'IsControl' ), 4)
}};
diff --git a/arch/mips/isa_traits.cc b/arch/mips/isa_traits.cc
index 02a857af7..85afd4a02 100644
--- a/arch/mips/isa_traits.cc
+++ b/arch/mips/isa_traits.cc
@@ -33,6 +33,256 @@
using namespace MipsISA;
+
+void
+MipsISA::getMiscRegIdx(int reg_name,int &idx, int &sel)
+{
+ switch(reg_name)
+ {
+ case Index: idx = 0; sel = 0; break; //0-0 Index into the TLB array
+ case MVPControl: idx = 0; sel = 1; break; //0-1 Per-processor register containing global
+ case MVPConf0: idx = 0; sel = 2; break; //0-2 Per-processor register containing global
+ case MVPConf1: idx = 0; sel = 3; break; //0-3 Per-processor register containing global
+ case Random: idx = 1; sel = 3; break; //1-0 Randomly generated index into the TLB array
+ case VPEControl: idx = 1; sel = 1; break; //1-1 Per-VPE register containing relatively volatile
+ //thread configuration data
+ case VPEConf0: idx = 1; sel = 2; break; //1-2 Per-VPE multi-thread configuration
+ //information
+ case VPEConf1: idx = 1; sel = 3; break; //1-3 Per-VPE multi-thread configuration
+ //information
+ case YQMask: idx = 1; sel = 4; break; //Per-VPE register defining which YIELD
+ //qualifier bits may be used without generating
+ //an exception
+ case VPESchedule: idx = 1; sel = 5; break;
+ case VPEScheFBack: idx = 1; sel = 6; break;
+ case VPEOpt: idx = 1; sel = 7; break;
+ case EntryLo0: idx = 1; sel = 5; break;
+ case TCStatus: idx = 1; sel = 5; break;
+ case TCBind: idx = 1; sel = 5; break;
+ case TCRestart: idx = 1; sel = 5; break;
+ case TCHalt: idx = 1; sel = 5; break;
+ case TCContext: idx = 1; sel = 5; break;
+ case TCSchedule: idx = 1; sel = 5; break;
+ case TCScheFBack: panic("Accessing Unimplemented CP0 Register"); break;
+ case EntryLo1: panic("Accessing Unimplemented CP0 Register"); break;
+ case Context: panic("Accessing Unimplemented CP0 Register"); break;
+ case ContextConfig: panic("Accessing Unimplemented CP0 Register"); break;
+ //case PageMask: panic("Accessing Unimplemented CP0 Register"); break;
+ case PageGrain: panic("Accessing Unimplemented CP0 Register"); break;
+ case Wired: panic("Accessing Unimplemented CP0 Register"); break;
+ case SRSConf0: panic("Accessing Unimplemented CP0 Register"); break;
+ case SRSConf1: panic("Accessing Unimplemented CP0 Register"); break;
+ case SRSConf2: panic("Accessing Unimplemented CP0 Register"); break;
+ case SRSConf3: panic("Accessing Unimplemented CP0 Register"); break;
+ case SRSConf4: panic("Accessing Unimplemented CP0 Register"); break;
+ case BadVAddr: panic("Accessing Unimplemented CP0 Register"); break;
+ case Count: panic("Accessing Unimplemented CP0 Register"); break;
+ case EntryHi: panic("Accessing Unimplemented CP0 Register"); break;
+ case Compare: panic("Accessing Unimplemented CP0 Register"); break;
+ case Status: idx = 12; sel = 0; break; //12-0 Processor status and control
+ case IntCtl: idx = 12; sel = 1; break; //12-1 Interrupt system status and control
+ case SRSCtl: idx = 12; sel = 2; break; //12-2 Shadow register set status and control
+ case SRSMap: idx = 12; sel = 3; break; //12-3 Shadow set IPL mapping
+ case Cause: idx = 13; sel = 0; break; //13-0 Cause of last general exception
+ case EPC: idx = 14; sel = 0; break; //14-0 Program counter at last exception
+ case PRId: idx = 15; sel = 0; break; //15-0 Processor identification and revision
+ case EBase: idx = 15; sel = 1; break; //15-1 Exception vector base register
+ case Config: panic("Accessing Unimplemented CP0 Register"); break;
+ case Config1: panic("Accessing Unimplemented CP0 Register"); break;
+ case Config2: panic("Accessing Unimplemented CP0 Register"); break;
+ case Config3: panic("Accessing Unimplemented CP0 Register"); break;
+ case LLAddr: panic("Accessing Unimplemented CP0 Register"); break;
+ case WatchLo: panic("Accessing Unimplemented CP0 Register"); break;
+ case WatchHi: panic("Accessing Unimplemented CP0 Register"); break;
+ case Debug: panic("Accessing Unimplemented CP0 Register"); break;
+ case TraceControl1: panic("Accessing Unimplemented CP0 Register"); break;
+ case TraceControl2: panic("Accessing Unimplemented CP0 Register"); break;
+ case UserTraceData: panic("Accessing Unimplemented CP0 Register"); break;
+ case TraceBPC: panic("Accessing Unimplemented CP0 Register"); break;
+ case DEPC: panic("Accessing Unimplemented CP0 Register"); break;
+ case PerfCnt: panic("Accessing Unimplemented CP0 Register"); break;
+ case ErrCtl: panic("Accessing Unimplemented CP0 Register"); break;
+ case CacheErr0: panic("Accessing Unimplemented CP0 Register"); break;
+ case CacheErr1: panic("Accessing Unimplemented CP0 Register"); break;
+ case CacheErr2: panic("Accessing Unimplemented CP0 Register"); break;
+ case CacheErr3: panic("Accessing Unimplemented CP0 Register"); break;
+ case TagLo: panic("Accessing Unimplemented CP0 Register"); break;
+ case DataLo: panic("Accessing Unimplemented CP0 Register"); break;
+ case TagHi: panic("Accessing Unimplemented CP0 Register"); break;
+ case DataHi: panic("Accessing Unimplemented CP0 Register"); break;
+ case ErrorEPC: panic("Accessing Unimplemented CP0 Register"); break;
+
+ default:
+ panic("Accessing Unimplemented Misc. Register");
+ }
+}
+
+void RegFile::coldReset()
+{
+ //CP0 Random Reg:
+ //Randomly generated index into the TLB array
+ miscRegs[1][0] = 0x0000003f;
+
+ //CP0 Wired Reg.
+ miscRegs[6][0] = 0x0000000;
+
+ //CP0 HWRENA
+ miscRegs[7][0] = 0x0000000;
+
+ //CP0 Status Reg.
+ miscRegs[12][0] = 0x0400004;
+
+ //CP0 INTCNTL
+ miscRegs[12][1] = 0xfc00000;
+
+ //CP0 SRSCNTL
+ miscRegs[12][2] = 0x0c00000;
+
+ //CP0 SRSMAP
+ miscRegs[12][3] = 0x0000000;
+
+ //CP0 Cause
+ miscRegs[13][0] = 0x0000000;
+
+ //CP0 Processor ID
+ miscRegs[15][0] = 0x0019300;
+
+ //CP0 EBASE
+ miscRegs[15][1] = 0x8000000;
+
+ //CP0 Config Reg.
+ miscRegs[16][0] = 0x80040482;
+
+ //CP0 Config 1 Reg.
+ miscRegs[16][1] = 0xfee3719e;
+
+ //CP0 Config 2 Reg.
+ miscRegs[16][2] = 0x8000000;
+
+ //CP0 Config 3 Reg.
+ miscRegs[16][3] = 0x0000020;
+
+ //CP0 Config 7 Reg.
+ miscRegs[16][7] = 0x0000000;
+
+ //CP0 Debug
+ miscRegs[23][0] = 0x0201800;
+
+ //CP0 PERFCNTL1
+ miscRegs[25][0] = 0x0000000;
+
+ //CP0 PERFCNTL2
+ miscRegs[25][1] = 0x0000000;
+
+}
+
+void RegFile::createCP0Regs()
+{
+//Resize Coprocessor Register Banks to
+// the number specified in MIPS32K VOL.III
+// Chapter 8
+ //
+ //Cop-0 Regs. Bank 0: Index,
+ miscRegs[0].resize(4);
+
+ //Cop-0 Regs. Bank 1:
+ miscRegs[1].resize(8);
+
+ //Cop-0 Regs. Bank 2:
+ miscRegs[2].resize(8);
+
+ //Cop-0 Regs. Bank 3:
+ miscRegs[3].resize(1);
+
+ //Cop-0 Regs. Bank 4:
+ miscRegs[4].resize(2);
+
+ //Cop-0 Regs. Bank 5:
+ miscRegs[5].resize(2);
+
+ //Cop-0 Regs. Bank 6:
+ miscRegs[6].resize(6);
+
+ //Cop-0 Regs. Bank 7:
+ miscRegs[7].resize(1);
+
+ //Cop-0 Regs. Bank 8:
+ miscRegs[8].resize(1);
+
+ //Cop-0 Regs. Bank 9:
+ miscRegs[9].resize(1);
+
+ //Cop-0 Regs. Bank 10:
+ miscRegs[10].resize(1);
+
+ //Cop-0 Regs. Bank 11:
+ miscRegs[11].resize(1);
+
+ //Cop-0 Regs. Bank 12:
+ miscRegs[12].resize(4);
+
+ //Cop-0 Regs. Bank 13:
+ miscRegs[13].resize(1);
+
+ //Cop-0 Regs. Bank 14:
+ miscRegs[14].resize(1);
+
+ //Cop-0 Regs. Bank 15:
+ miscRegs[15].resize(2);
+
+ //Cop-0 Regs. Bank 16:
+ miscRegs[16].resize(4);
+
+ //Cop-0 Regs. Bank 17:
+ miscRegs[17].resize(1);
+
+ //Cop-0 Regs. Bank 18:
+ miscRegs[18].resize(8);
+
+ //Cop-0 Regs. Bank 19:
+ miscRegs[19].resize(8);
+
+ //Cop-0 Regs. Bank 20:
+ miscRegs[20].resize(1);
+
+ //Cop-0 Regs. Bank 21:
+ //miscRegs[21].resize(1);
+ //Reserved for future extensions
+
+ //Cop-0 Regs. Bank 22:
+ //miscRegs[22].resize(4);
+ //Available for implementation dependent use
+
+ //Cop-0 Regs. Bank 23:
+ miscRegs[23].resize(5);
+
+ //Cop-0 Regs. Bank 24:
+ miscRegs[24].resize(1);
+
+ //Cop-0 Regs. Bank 25:
+ miscRegs[25].resize(8);
+
+ //Cop-0 Regs. Bank 26:
+ miscRegs[26].resize(1);
+
+ //Cop-0 Regs. Bank 27:
+ miscRegs[27].resize(4);
+
+ //Cop-0 Regs. Bank 28:
+ miscRegs[28].resize(8);
+
+ //Cop-0 Regs. Bank 29:
+ miscRegs[29].resize(8);
+
+ //Cop-0 Regs. Bank 30:
+ miscRegs[30].resize(1);
+
+ //Cop-0 Regs. Bank 31:
+ miscRegs[31].resize(1);
+
+}
+
+
const Addr MipsISA::PageShift = 13;
const Addr MipsISA::PageBytes = ULL(1) << PageShift;
const Addr MipsISA::PageMask = ~(PageBytes - 1);
@@ -64,8 +314,8 @@ const Addr MipsISA::K1SegEnd = ULL(0xffffffffffffffff);
#endif
-// Mips UNOP (ldq_u r31,0(r0))
-const MachInst MipsISA::NoopMachInst = 0x2ffe0000;
+// Mips UNOP (sll r0,r0,r0)
+const MachInst MipsISA::NoopMachInst = 0x00000000;
static inline Addr
TruncPage(Addr addr)
@@ -74,17 +324,19 @@ TruncPage(Addr addr)
static inline Addr
RoundPage(Addr addr)
{ return (addr + MipsISA::PageBytes - 1) & ~(MipsISA::PageBytes - 1); }
+
void
RegFile::serialize(std::ostream &os)
{
SERIALIZE_ARRAY(intRegFile, NumIntRegs);
SERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs);
- SERIALIZE_SCALAR(miscRegs.fpcr);
- SERIALIZE_SCALAR(miscRegs.uniq);
- SERIALIZE_SCALAR(miscRegs.lock_flag);
- SERIALIZE_SCALAR(miscRegs.lock_addr);
+ //SERIALIZE_SCALAR(miscRegs.fpcr);
+ //SERIALIZE_SCALAR(miscRegs.uniq);
+ //SERIALIZE_SCALAR(miscRegs.lock_flag);
+ //SERIALIZE_SCALAR(miscRegs.lock_addr);
SERIALIZE_SCALAR(pc);
SERIALIZE_SCALAR(npc);
+ SERIALIZE_SCALAR(nnpc);
#if FULL_SYSTEM
SERIALIZE_ARRAY(palregs, NumIntRegs);
SERIALIZE_ARRAY(ipr, NumInternalProcRegs);
@@ -99,12 +351,13 @@ RegFile::unserialize(Checkpoint *cp, const std::string &section)
{
UNSERIALIZE_ARRAY(intRegFile, NumIntRegs);
UNSERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs);
- UNSERIALIZE_SCALAR(miscRegs.fpcr);
- UNSERIALIZE_SCALAR(miscRegs.uniq);
- UNSERIALIZE_SCALAR(miscRegs.lock_flag);
- UNSERIALIZE_SCALAR(miscRegs.lock_addr);
+ //UNSERIALIZE_SCALAR(miscRegs.fpcr);
+ //UNSERIALIZE_SCALAR(miscRegs.uniq);
+ //UNSERIALIZE_SCALAR(miscRegs.lock_flag);
+ //UNSERIALIZE_SCALAR(miscRegs.lock_addr);
UNSERIALIZE_SCALAR(pc);
UNSERIALIZE_SCALAR(npc);
+ UNSERIALIZE_SCALAR(nnpc);
#if FULL_SYSTEM
UNSERIALIZE_ARRAY(palregs, NumIntRegs);
UNSERIALIZE_ARRAY(ipr, NumInternalProcRegs);
diff --git a/arch/mips/isa_traits.hh b/arch/mips/isa_traits.hh
index 71da82ffa..35f33c237 100644
--- a/arch/mips/isa_traits.hh
+++ b/arch/mips/isa_traits.hh
@@ -29,19 +29,21 @@
#ifndef __ARCH_MIPS_ISA_TRAITS_HH__
#define __ARCH_MIPS_ISA_TRAITS_HH__
-namespace LittleEndianGuest {}
-using namespace LittleEndianGuest;
-
-//#include "arch/mips/faults.hh"
+//#include "arch/mips/misc_regfile.hh"
#include "base/misc.hh"
#include "config/full_system.hh"
#include "sim/host.hh"
#include "sim/faults.hh"
+#include <vector>
+
class FastCPU;
class FullCPU;
class Checkpoint;
+namespace LittleEndianGuest {};
+using namespace LittleEndianGuest;
+
#define TARGET_MIPS
class StaticInst;
@@ -50,11 +52,10 @@ class StaticInstPtr;
namespace MIPS34K {
int DTB_ASN_ASN(uint64_t reg);
int ITB_ASN_ASN(uint64_t reg);
-}
+};
namespace MipsISA
{
-
typedef uint32_t MachInst;
// typedef uint64_t Addr;
typedef uint8_t RegIndex;
@@ -64,7 +65,7 @@ namespace MipsISA
NumIntRegs = 32,
NumFloatRegs = 32,
- NumMiscRegs = 32,
+ NumMiscRegs = 256,
MaxRegsOfAnyType = 32,
// Static instruction parameters
@@ -72,7 +73,7 @@ namespace MipsISA
MaxInstDestRegs = 2,
// semantically meaningful register indices
- ZeroReg = 31, // architecturally meaningful
+ ZeroReg = 0, // architecturally meaningful
// the rest of these depend on the ABI
StackPointerReg = 30,
GlobalPointerReg = 29,
@@ -106,7 +107,8 @@ namespace MipsISA
Ctrl_Base_DepTag = 64,
Fpcr_DepTag = 64, // floating point control register
Uniq_DepTag = 65,
- IPR_Base_DepTag = 66
+ IPR_Base_DepTag = 66,
+ MiscReg_DepTag = 67
};
typedef uint64_t IntReg;
@@ -123,14 +125,123 @@ namespace MipsISA
double d[NumFloatRegs]; // double-precision floating point view
} FloatRegFile;
- // control register file contents
+ // cop-0/cop-1 system control register file
typedef uint64_t MiscReg;
- typedef struct {
- uint64_t fpcr; // floating point condition codes
- uint64_t uniq; // process-unique register
- bool lock_flag; // lock flag for LL/SC
- Addr lock_addr; // lock address for LL/SC
- } MiscRegFile;
+//typedef MiscReg MiscRegFile[NumMiscRegs];
+
+ typedef std::vector<MiscReg> MiscRegFile[NumMiscRegs];
+// typedef MiscRegBank MiscRegBanks[NumMiscRegs];
+
+
+ enum MiscRegTags {
+ //Coprocessor 0 Registers
+ //Reference MIPS32 Arch. for Programmers, Vol. III, Ch.8
+ //(Register Number-Register Select) Summary of Register
+ //------------------------------------------------------
+ Index, //0-0 Index into the TLB array
+
+ MVPControl, //0-1 Per-processor register containing global
+ //MIPSŪ MT configuration data
+
+ MVPConf0, //0-2 Per-processor register containing global
+ //MIPSŪ MT configuration data
+
+ MVPConf1, //0-3 Per-processor register containing global
+ //MIPSŪ MT configuration data
+
+ Random, //1-0 Randomly generated index into the TLB array
+
+ VPEControl, //1-1 Per-VPE register containing relatively volatile
+ //thread configuration data
+
+ VPEConf0, //1-2 Per-VPE multi-thread configuration
+ //information
+
+
+ VPEConf1, //1-2 Per-VPE multi-thread configuration
+ //information
+
+ YQMask, //Per-VPE register defining which YIELD
+ //qualifier bits may be used without generating
+ //an exception
+
+ VPESchedule,
+ VPEScheFBack,
+ VPEOpt,
+ EntryLo0,
+ TCStatus,
+ TCBind,
+ TCRestart,
+ TCHalt,
+ TCContext,
+ TCSchedule,
+ TCScheFBack,
+ EntryLo1,
+ Context,
+ ContextConfig,
+ //PageMask,
+ PageGrain,
+ Wired,
+ SRSConf0,
+ SRSConf1,
+ SRSConf2,
+ SRSConf3,
+ SRSConf4,
+ BadVAddr,
+ Count,
+ EntryHi,
+ Compare,
+ Status, //12-0 Processor status and control
+ IntCtl, //12-1 Interrupt system status and control
+ SRSCtl, //12-2 Shadow register set status and control
+ SRSMap, //12-3 Shadow set IPL mapping
+ Cause, //13-0 Cause of last general exception
+ EPC, //14-0 Program counter at last exception
+ PRId, //15-0 Processor identification and revision
+ EBase, //15-1 Exception vector base register
+ Config,
+ Config1,
+ Config2,
+ Config3,
+ LLAddr,
+ WatchLo,
+ WatchHi,
+ Debug,
+ TraceControl1,
+ TraceControl2,
+ UserTraceData,
+ TraceBPC,
+
+ DEPC,
+
+ PerfCnt,
+
+ ErrCtl,
+
+ CacheErr0,
+ CacheErr1,
+ CacheErr2,
+ CacheErr3,
+
+ TagLo,
+ DataLo,
+ TagHi,
+ DataHi,
+ ErrorEPC,
+ DESAVE,
+
+ //More Misc. Regs
+ Hi,
+ Lo,
+ FCSR,
+ FPCR,
+ LockAddr,
+ LockFlag,
+
+ //Alpha Regs, but here now, for
+ //compiling sake
+ UNIQ
+ };
extern const Addr PageShift;
extern const Addr PageBytes;
@@ -168,19 +279,33 @@ extern const Addr PageOffset;
IntRegFile intRegFile; // (signed) integer register file
FloatRegFile floatRegFile; // floating point register file
MiscRegFile miscRegs; // control register file
+
+
Addr pc; // program counter
Addr npc; // next-cycle program counter
+ Addr nnpc; // next-next-cycle program counter
+ // used to implement branch delay slot
+ // not real register
+
+ MiscReg hi; // MIPS HI Register
+ MiscReg lo; // MIPS LO Register
+
+
#if FULL_SYSTEM
IntReg palregs[NumIntRegs]; // PAL shadow registers
InternalProcReg ipr[NumInternalProcRegs]; // internal processor regs
int intrflag; // interrupt flag
bool pal_shadow; // using pal_shadow registers
- inline int instAsid() { return EV5::ITB_ASN_ASN(ipr[IPR_ITB_ASN]); }
- inline int dataAsid() { return EV5::DTB_ASN_ASN(ipr[IPR_DTB_ASN]); }
+ inline int instAsid() { return MIPS34K::ITB_ASN_ASN(ipr[IPR_ITB_ASN]); }
+ inline int dataAsid() { return MIPS34K::DTB_ASN_ASN(ipr[IPR_DTB_ASN]); }
#endif // FULL_SYSTEM
+ //void initCP0Regs();
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section);
+
+ void createCP0Regs();
+ void coldReset();
};
StaticInstPtr decodeInst(MachInst);
@@ -194,6 +319,9 @@ extern const Addr PageOffset;
ITOUCH_ANNOTE = 0xffffffff,
};
+ void getMiscRegIdx(int reg_name,int &idx, int &sel);
+
+
static inline bool isCallerSaveIntegerRegister(unsigned int reg) {
panic("register classification not implemented");
return (reg >= 1 && reg <= 8 || reg >= 22 && reg <= 25 || reg == 27);
@@ -264,37 +392,7 @@ extern const Addr PageOffset;
template <class XC>
void zeroRegisters(XC *xc);
-
-//typedef MipsISA TheISA;
-
-//typedef TheISA::MachInst MachInst;
-//typedef TheISA::Addr Addr;
-//typedef TheISA::RegIndex RegIndex;
-//typedef TheISA::IntReg IntReg;
-//typedef TheISA::IntRegFile IntRegFile;
-//typedef TheISA::FloatReg FloatReg;
-//typedef TheISA::FloatRegFile FloatRegFile;
-//typedef TheISA::MiscReg MiscReg;
-//typedef TheISA::MiscRegFile MiscRegFile;
-//typedef TheISA::AnyReg AnyReg;
-//typedef TheISA::RegFile RegFile;
-
-//const int NumIntRegs = TheISA::NumIntRegs;
-//const int NumFloatRegs = TheISA::NumFloatRegs;
-//const int NumMiscRegs = TheISA::NumMiscRegs;
-//const int TotalNumRegs = TheISA::TotalNumRegs;
-//const int VMPageSize = TheISA::VMPageSize;
-//const int LogVMPageSize = TheISA::LogVMPageSize;
-//const int ZeroReg = TheISA::ZeroReg;
-//const int StackPointerReg = TheISA::StackPointerReg;
-//const int GlobalPointerReg = TheISA::GlobalPointerReg;
-//const int ReturnAddressReg = TheISA::ReturnAddressReg;
-//const int ReturnValueReg = TheISA::ReturnValueReg;
-//const int ArgumentReg0 = TheISA::ArgumentReg0;
-//const int ArgumentReg1 = TheISA::ArgumentReg1;
-//const int ArgumentReg2 = TheISA::ArgumentReg2;
-//const int BranchPredAddrShiftAmt = TheISA::BranchPredAddrShiftAmt;
-const Addr MaxAddr = (Addr)-1;
+ const Addr MaxAddr = (Addr)-1;
};
#if !FULL_SYSTEM
diff --git a/arch/mips/linux_process.cc b/arch/mips/linux_process.cc
index d3aca15bc..1d4f62350 100644
--- a/arch/mips/linux_process.cc
+++ b/arch/mips/linux_process.cc
@@ -26,8 +26,8 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "arch/mips/mips_common_syscall_emul.hh"
-#include "arch/mips/mips_linux_process.hh"
+#include "arch/mips/common_syscall_emul.hh"
+#include "arch/mips/linux_process.hh"
#include "arch/mips/isa_traits.hh"
#include "base/trace.hh"
diff --git a/arch/mips/stacktrace.hh b/arch/mips/stacktrace.hh
new file mode 100644
index 000000000..1d8d97a79
--- /dev/null
+++ b/arch/mips/stacktrace.hh
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_STACKTRACE_HH__
+#define __ARCH_ALPHA_STACKTRACE_HH__
+
+#include "base/trace.hh"
+#include "cpu/static_inst.hh"
+
+class ExecContext;
+class StackTrace;
+
+class ProcessInfo
+{
+ private:
+ ExecContext *xc;
+
+ int thread_info_size;
+ int task_struct_size;
+ int task_off;
+ int pid_off;
+ int name_off;
+
+ public:
+ ProcessInfo(ExecContext *_xc);
+
+ Addr task(Addr ksp) const;
+ int pid(Addr ksp) const;
+ std::string name(Addr ksp) const;
+};
+
+class StackTrace
+{
+ protected:
+ typedef TheISA::MachInst MachInst;
+ private:
+ ExecContext *xc;
+ std::vector<Addr> stack;
+
+ private:
+ bool isEntry(Addr addr);
+ bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra);
+ bool decodeSave(MachInst inst, int &reg, int &disp);
+ bool decodeStack(MachInst inst, int &disp);
+
+ void trace(ExecContext *xc, bool is_call);
+
+ public:
+ StackTrace();
+ StackTrace(ExecContext *xc, StaticInstPtr inst);
+ ~StackTrace();
+
+ void clear()
+ {
+ xc = 0;
+ stack.clear();
+ }
+
+ bool valid() const { return xc != NULL; }
+ bool trace(ExecContext *xc, StaticInstPtr inst);
+
+ public:
+ const std::vector<Addr> &getstack() const { return stack; }
+
+ static const int user = 1;
+ static const int console = 2;
+ static const int unknown = 3;
+
+#if TRACING_ON
+ private:
+ void dump();
+
+ public:
+ void dprintf() { if (DTRACE(Stack)) dump(); }
+#else
+ public:
+ void dprintf() {}
+#endif
+};
+
+inline bool
+StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
+{
+ if (!inst->isCall() && !inst->isReturn())
+ return false;
+
+ if (valid())
+ clear();
+
+ trace(xc, !inst->isReturn());
+ return true;
+}
+
+#endif // __ARCH_ALPHA_STACKTRACE_HH__
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