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-rw-r--r--arch/sparc/isa/formats/branch.isa308
1 files changed, 0 insertions, 308 deletions
diff --git a/arch/sparc/isa/formats/branch.isa b/arch/sparc/isa/formats/branch.isa
deleted file mode 100644
index 37bdb9402..000000000
--- a/arch/sparc/isa/formats/branch.isa
+++ /dev/null
@@ -1,308 +0,0 @@
-////////////////////////////////////////////////////////////////////
-//
-// Branch instructions
-//
-
-output header {{
- /**
- * Base class for branch operations.
- */
- class Branch : public SparcStaticInst
- {
- protected:
- // Constructor
- Branch(const char *mnem, MachInst _machInst, OpClass __opClass) :
- SparcStaticInst(mnem, _machInst, __opClass)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
- };
-
- /**
- * Base class for branch operations with an immediate displacement.
- */
- class BranchDisp : public Branch
- {
- protected:
- // Constructor
- BranchDisp(const char *mnem, MachInst _machInst,
- OpClass __opClass) :
- Branch(mnem, _machInst, __opClass)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
-
- int32_t disp;
- };
-
- /**
- * Base class for branches with 19 bit displacements.
- */
- class Branch19 : public BranchDisp
- {
- protected:
- // Constructor
- Branch19(const char *mnem, MachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sign_ext(DISP19 << 2, 21);
- }
- };
-
- /**
- * Base class for branches with 22 bit displacements.
- */
- class Branch22 : public BranchDisp
- {
- protected:
- // Constructor
- Branch22(const char *mnem, MachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sign_ext(DISP22 << 2, 24);
- }
- };
-
- /**
- * Base class for branches with 30 bit displacements.
- */
- class Branch30 : public BranchDisp
- {
- protected:
- // Constructor
- Branch30(const char *mnem, MachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sign_ext(DISP30 << 2, 32);
- }
- };
-
- /**
- * Base class for 16bit split displacements.
- */
- class BranchSplit : public BranchDisp
- {
- protected:
- // Constructor
- BranchSplit(const char *mnem, MachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sign_ext((D16HI << 16) | (D16LO << 2), 18);
- }
- };
-
- /**
- * Base class for branches that use an immediate and a register to
- * compute their displacements.
- */
- class BranchImm13 : public Branch
- {
- protected:
- // Constructor
- BranchImm13(const char *mnem, MachInst _machInst, OpClass __opClass) :
- Branch(mnem, _machInst, __opClass), imm(sign_ext(SIMM13, 13))
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
-
- int32_t imm;
- };
-}};
-
-output decoder {{
- std::string Branch::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- std::stringstream response;
-
- printMnemonic(response, mnemonic);
-
- if (_numSrcRegs > 0)
- {
- printReg(response, _srcRegIdx[0]);
- for(int x = 1; x < _numSrcRegs; x++)
- {
- response << ", ";
- printReg(response, _srcRegIdx[x]);
- }
- }
-
- if (_numDestRegs > 0)
- {
- if(_numSrcRegs > 0)
- response << ", ";
- printReg(response, _destRegIdx[0]);
- }
-
- return response.str();
- }
-
- std::string BranchImm13::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- std::stringstream response;
-
- printMnemonic(response, mnemonic);
-
- if (_numSrcRegs > 0)
- {
- printReg(response, _srcRegIdx[0]);
- for(int x = 1; x < _numSrcRegs; x++)
- {
- response << ", ";
- printReg(response, _srcRegIdx[x]);
- }
- }
-
- if(_numSrcRegs > 0)
- response << ", ";
-
- ccprintf(response, "0x%x", imm);
-
- if (_numDestRegs > 0)
- {
- response << ", ";
- printReg(response, _destRegIdx[0]);
- }
-
- return response.str();
- }
-
- std::string BranchDisp::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- std::stringstream response;
- std::string symbol;
- Addr symbolAddr;
-
- Addr target = disp + pc;
-
- printMnemonic(response, mnemonic);
- ccprintf(response, "0x%x", target);
-
- if(symtab->findNearestSymbol(target, symbol, symbolAddr))
- {
- ccprintf(response, " <%s", symbol);
- if(symbolAddr != target)
- ccprintf(response, "+%d>", target - symbolAddr);
- else
- ccprintf(response, ">");
- }
-
- return response.str();
- }
-}};
-
-def template BranchExecute {{
- Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
- Trace::InstRecord *traceData) const
- {
- //Attempt to execute the instruction
- Fault fault = NoFault;
-
- %(op_decl)s;
- %(op_rd)s;
-
- NNPC = xc->readNextNPC();
- %(code)s;
-
- if(fault == NoFault)
- {
- //Write the resulting state to the execution context
- %(op_wb)s;
- }
-
- return fault;
- }
-}};
-
-let {{
- handle_annul = '''
- {
- if(A)
- {
- NPC = xc->readNextNPC();
- NNPC = NPC + 4;
- }
- else
- {
- NPC = xc->readNextPC();
- NNPC = xc->readNextNPC();
- }
- }'''
-}};
-
-// Primary format for branch instructions:
-def format Branch(code, *opt_flags) {{
- code = re.sub(r'handle_annul', handle_annul, code)
- (usesImm, code, immCode,
- rString, iString) = splitOutImm(code)
- iop = InstObjParams(name, Name, 'Branch', code, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- exec_output = BranchExecute.subst(iop)
- if usesImm:
- imm_iop = InstObjParams(name, Name + 'Imm', 'BranchImm' + iString,
- immCode, opt_flags)
- header_output += BasicDeclare.subst(imm_iop)
- decoder_output += BasicConstructor.subst(imm_iop)
- exec_output += BranchExecute.subst(imm_iop)
- decode_block = ROrImmDecode.subst(iop)
- else:
- decode_block = BasicDecode.subst(iop)
-}};
-
-// Primary format for branch instructions:
-def format Branch19(code, *opt_flags) {{
- code = re.sub(r'handle_annul', handle_annul, code)
- codeBlk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'Branch19', codeBlk, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- exec_output = BranchExecute.subst(iop)
- decode_block = BasicDecode.subst(iop)
-}};
-
-// Primary format for branch instructions:
-def format Branch22(code, *opt_flags) {{
- code = re.sub(r'handle_annul', handle_annul, code)
- codeBlk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'Branch22', codeBlk, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- exec_output = BranchExecute.subst(iop)
- decode_block = BasicDecode.subst(iop)
-}};
-
-// Primary format for branch instructions:
-def format Branch30(code, *opt_flags) {{
- code = re.sub(r'handle_annul', handle_annul, code)
- codeBlk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'Branch30', codeBlk, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- exec_output = BranchExecute.subst(iop)
- decode_block = BasicDecode.subst(iop)
-}};
-
-// Primary format for branch instructions:
-def format BranchSplit(code, *opt_flags) {{
- code = re.sub(r'handle_annul', handle_annul, code)
- codeBlk = CodeBlock(code)
- iop = InstObjParams(name, Name, 'BranchSplit', codeBlk, opt_flags)
- header_output = BasicDeclare.subst(iop)
- decoder_output = BasicConstructor.subst(iop)
- exec_output = BranchExecute.subst(iop)
- decode_block = BasicDecode.subst(iop)
-}};
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-23 15:01:13 +0000