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-rw-r--r--arch/sparc/isa/formats/branch.isa3
-rw-r--r--arch/sparc/isa/formats/integerop.isa75
-rw-r--r--arch/sparc/isa/formats/mem.isa15
-rw-r--r--arch/sparc/isa/formats/noop.isa4
-rw-r--r--arch/sparc/isa/formats/priv.isa172
-rw-r--r--arch/sparc/isa/formats/trap.isa13
-rw-r--r--arch/sparc/isa/formats/unknown.isa46
7 files changed, 257 insertions, 71 deletions
diff --git a/arch/sparc/isa/formats/branch.isa b/arch/sparc/isa/formats/branch.isa
index 80101de1b..b9dc960de 100644
--- a/arch/sparc/isa/formats/branch.isa
+++ b/arch/sparc/isa/formats/branch.isa
@@ -34,7 +34,6 @@ def template BranchExecute {{
{
//Attempt to execute the instruction
Fault fault = NoFault;
- checkPriv;
%(op_decl)s;
%(op_rd)s;
@@ -57,6 +56,6 @@ def format Branch(code, *opt_flags) {{
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = BranchExecute.subst(iop)
}};
diff --git a/arch/sparc/isa/formats/integerop.isa b/arch/sparc/isa/formats/integerop.isa
index 5a9e09896..7b6bfa54d 100644
--- a/arch/sparc/isa/formats/integerop.isa
+++ b/arch/sparc/isa/formats/integerop.isa
@@ -11,13 +11,13 @@ output header {{
{
protected:
// Constructor
- IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ IntegerOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
SparcStaticInst(mnem, _machInst, __opClass)
{
}
std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
+ const SymbolTable *symtab) const;
};
}};
@@ -25,49 +25,40 @@ output decoder {{
std::string IntegerOp::generateDisassembly(Addr pc,
const SymbolTable *symtab) const
{
- return "Integer instruction\n";
+ return "Integer instruction\n";
}
}};
def template IntegerExecute {{
- Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ 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 = ;
+ Fault fault;
+ //These are set to constants when the execute method
+ //is generated
+ bool useCc = ;
- //Attempt to execute the instruction
- try
- {
- checkPriv;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(code)s;
- %(op_decl)s;
- %(op_rd)s;
- %(code)s;
- }
- //If we have an exception for some reason,
- //deal with it
- catch(SparcException except)
- {
- //Deal with exception
- return No_Fault;
- }
-
- //Write the resulting state to the execution context
+ //Write the resulting state to the execution context
+ if(fault == NoFault)
+ {
%(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;
+ CcrIccN = Rd & (1 << 63);
+ CcrIccZ = (Rd == 0);
+ CcrIccV = ivValue;
+ CcrIccC = icValue;
+ CcrXccN = Rd & (1 << 31);
+ CcrXccZ = ((Rd & 0xFFFFFFFF) == 0);
+ CcrXccV = xvValue;
+ CcrXccC = xcValue;
}
- return No_Fault;
+ }
+ return fault;
}
}};
@@ -75,19 +66,13 @@ def template IntegerExecute {{
def format IntegerOp(code, *opt_flags) {{
orig_code = code
cblk = CodeBlock(code)
- checkPriv = (code.find('checkPriv') != -1)
- code.replace('checkPriv', '')
- if checkPriv:
- code.replace('checkPriv;', 'if(!xc->regs.miscRegFile.pstateFields.priv) throw privileged_opcode;')
- else:
- code.replace('checkPriv;', '')
for (marker, value) in (('ivValue', '0'), ('icValue', '0'),
('xvValue', '0'), ('xcValue', '0')):
code.replace(marker, value)
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = IntegerExecute.subst(iop)
}};
@@ -95,18 +80,12 @@ def format IntegerOp(code, *opt_flags) {{
def format IntegerOpCc(code, icValue, ivValue, xcValue, xvValue, *opt_flags) {{
orig_code = code
cblk = CodeBlock(code)
- checkPriv = (code.find('checkPriv') != -1)
- code.replace('checkPriv', '')
- if checkPriv:
- code.replace('checkPriv;', 'if(!xc->regs.miscRegFile.pstateFields.priv) throw privileged_opcode;')
- else:
- code.replace('checkPriv;', '')
for (marker, value) in (('ivValue', ivValue), ('icValue', icValue),
('xvValue', xvValue), ('xcValue', xcValue)):
code.replace(marker, value)
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = IntegerExecute.subst(iop)
}};
diff --git a/arch/sparc/isa/formats/mem.isa b/arch/sparc/isa/formats/mem.isa
index d72de47d0..06725eae8 100644
--- a/arch/sparc/isa/formats/mem.isa
+++ b/arch/sparc/isa/formats/mem.isa
@@ -12,7 +12,7 @@ output header {{
protected:
// Constructor
- Mem(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ Mem(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
SparcStaticInst(mnem, _machInst, __opClass)
{
}
@@ -56,18 +56,7 @@ def format Mem(code, *opt_flags) {{
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = MemExecute.subst(iop)
exec_output.replace('ea_code', 'EA = I ? (R1 + SIMM13) : R1 + R2;');
}};
-
-def format Cas(code, *opt_flags) {{
- orig_code = code
- cblk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
- exec_output = MemExecute.subst(iop)
- exec_output.replace('ea_code', 'EA = R1;');
-}};
diff --git a/arch/sparc/isa/formats/noop.isa b/arch/sparc/isa/formats/noop.isa
index fa4047f06..5007f5bcb 100644
--- a/arch/sparc/isa/formats/noop.isa
+++ b/arch/sparc/isa/formats/noop.isa
@@ -11,7 +11,7 @@ output header {{
{
protected:
// Constructor
- Noop(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ Noop(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
SparcStaticInst(mnem, _machInst, __opClass)
{
}
@@ -45,6 +45,6 @@ def format Noop(code, *opt_flags) {{
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = NoopExecute.subst(iop)
}};
diff --git a/arch/sparc/isa/formats/priv.isa b/arch/sparc/isa/formats/priv.isa
new file mode 100644
index 000000000..7c0d8a985
--- /dev/null
+++ b/arch/sparc/isa/formats/priv.isa
@@ -0,0 +1,172 @@
+////////////////////////////////////////////////////////////////////
+//
+// Privelege mode instructions
+//
+
+output header {{
+ /**
+ * Base class for privelege mode operations.
+ */
+ class Priv : public SparcStaticInst
+ {
+ protected:
+ // Constructor
+ Priv(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
+ SparcStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const;
+ };
+
+ /**
+ * 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
+ {
+ protected:
+ // Constructor
+ PrivImm(const char *mnem, ExtMachInst _machInst,
+ OpClass __opClass) :
+ Priv(mnem, _machInst, __opClass), imm(SIMM13)
+ {
+ }
+
+ uint32_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)
+ {
+ }
+
+ uint32_t imm;
+ };
+}};
+
+output decoder {{
+ std::string Priv::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return "Privileged Instruction";
+ }
+
+ std::string PrivTick::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return "Regular access to Tick";
+ }
+}};
+
+def template PrivExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ %(op_decl)s;
+ %(op_rd)s;
+
+ //If the processor isn't in privileged mode, fault out right away
+ if(!pstate_priv)
+ return new PrivilegedOpCode
+
+ %(code)s;
+ %(op_wb)s;
+ }
+}};
+
+def template PrivTickExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ %(op_decl)s;
+ %(op_rd)s;
+
+ //If the processor isn't in privileged mode, fault out right away
+ if(!pstate_priv && tick_npt)
+ return new PrivilegedAction
+
+ %(code)s;
+ %(op_wb)s;
+ }
+}};
+
+def template Rb2OrImm13Decode {{
+ {
+ return (I ? (SparcStaticInst *)(new %(class_name)sImm(machInst))
+ : (SparcStaticInst *)(new %(class_name)s(machInst)));
+ }
+}};
+
+// Primary format for integer operate instructions:
+def format Priv(code, *opt_flags) {{
+ uses_imm = (code.find('Rs2_or_imm13') != -1)
+ if uses_imm:
+ orig_code = code
+ code = re.sub(r'Rs2_or_imm', 'Rs2', orig_code)
+ imm_code = re.sub(r'Rs2_or_imm(\.\w+)?', 'imm', orig_code)
+ cblk = CodeBlock(code)
+ iop = InstObjParams(name, Name, 'Priv', cblk, opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ exec_output = PrivExecute.subst(iop)
+ if uses_imm:
+ imm_cblk = CodeBlock(imm_code)
+ imm_iop = InstObjParams(name, Name + 'Imm', 'PrivImm', imm_cblk,
+ opt_flags)
+ header_output += BasicDeclare.subst(imm_iop)
+ decoder_output += BasicConstructor.subst(imm_iop)
+ exec_output += PrivExecute.subst(imm_iop)
+ decode_block = Rb2OrImm13Decode.subst(iop)
+ else:
+ decode_block = BasicDecode.subst(iop)
+}};
+
+// Primary format for integer operate instructions:
+def format PrivTick(code, *opt_flags) {{
+ uses_imm = (code.find('Rs2_or_imm13') != -1)
+ if uses_imm:
+ orig_code = code
+ code = re.sub(r'Rs2_or_imm', 'Rs2', orig_code)
+ imm_code = re.sub(r'Rs2_or_imm(\.\w+)?', 'imm', orig_code)
+ cblk = CodeBlock(code)
+ iop = InstObjParams(name, Name, 'PrivTick', cblk, opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ exec_output = PrivTickExecute.subst(iop)
+ if uses_imm:
+ imm_cblk = CodeBlock(imm_code)
+ imm_iop = InstObjParams(name, Name + 'Imm', 'PrivTickImm', imm_cblk,
+ opt_flags)
+ header_output += BasicDeclare.subst(imm_iop)
+ decoder_output += BasicConstructor.subst(imm_iop)
+ exec_output += PrivTickExecute.subst(imm_iop)
+ decode_block = Rb2OrImm13Decode.subst(iop)
+ else:
+ decode_block = BasicDecode.subst(iop)
+}};
diff --git a/arch/sparc/isa/formats/trap.isa b/arch/sparc/isa/formats/trap.isa
index ff3aadf72..935fbfe6b 100644
--- a/arch/sparc/isa/formats/trap.isa
+++ b/arch/sparc/isa/formats/trap.isa
@@ -5,14 +5,15 @@
output header {{
/**
- * Base class for integer operations.
+ * Base class for trap instructions,
+ * or instructions that always fault.
*/
class Trap : public SparcStaticInst
{
protected:
// Constructor
- Trap(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
SparcStaticInst(mnem, _machInst, __opClass)
{
}
@@ -34,18 +35,18 @@ def template TrapExecute {{
Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
Trace::InstRecord *traceData) const
{
- //TODO: set up a software fault and return it.
- return NoFault;
+ Fault fault = NoFault;
+ %(code)s
+ return fault;
}
}};
-// Primary format for integer operate instructions:
def format Trap(code, *opt_flags) {{
orig_code = code
cblk = CodeBlock(code)
iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
- decode_block = BasicDecodeWithMnemonic.subst(iop)
+ decode_block = BasicDecode.subst(iop)
exec_output = TrapExecute.subst(iop)
}};
diff --git a/arch/sparc/isa/formats/unknown.isa b/arch/sparc/isa/formats/unknown.isa
new file mode 100644
index 000000000..eeb2b9496
--- /dev/null
+++ b/arch/sparc/isa/formats/unknown.isa
@@ -0,0 +1,46 @@
+////////////////////////////////////////////////////////////////////
+//
+// Unknown instructions
+//
+
+output header {{
+ /**
+ * Class for Unknown/Illegal instructions
+ */
+ class Unknown : public SparcStaticInst
+ {
+ public:
+
+ // Constructor
+ Unknown(ExtMachInst _machInst) :
+ SparcStaticInst("unknown", _machInst, No_OpClass)
+ {
+ }
+
+ %(BasicExecDeclare)s
+
+ std::string generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const;
+
+ };
+}};
+
+output decoder {{
+ std::string Unknown::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return "Unknown instruction\n";
+ }
+}};
+
+output exec {{
+ Fault Unknown::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ return new IllegalInstruction;
+ }
+}};
+
+def format Unknown() {{
+ decode_block = 'return new Unknown(machInst);\n'
+}};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 01:11:33 +0000