diff options
Diffstat (limited to 'arch/mips/isa/base.isa')
| -rw-r--r-- | arch/mips/isa/base.isa | 35 |
1 files changed, 8 insertions, 27 deletions
diff --git a/arch/mips/isa/base.isa b/arch/mips/isa/base.isa index b504f1906..99fa302c0 100644 --- a/arch/mips/isa/base.isa +++ b/arch/mips/isa/base.isa @@ -1,18 +1,21 @@ +// -*- mode:c++ -*- + //////////////////////////////////////////////////////////////////// // -// Base class for sparc instructions, and some support functions +// Base class for MIPS instructions, and some support functions // +//Outputs to decoder.hh output header {{ /** * Base class for all SPARC static instructions. */ - class SparcStaticInst : public StaticInst<SPARCISA> + class MipsStaticInst : public StaticInst<MIPSISA> { protected: // Constructor. - SparcStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass) + MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass) : StaticInst<SPARCISA>(mnem, _machInst, __opClass) { } @@ -20,12 +23,12 @@ output header {{ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; }; - bool passesCondition(struct {uint8_t c:1; uint8_t v:1; uint8_t z:1; uint8_t n:1} codes, uint8_t condition); }}; +//Ouputs to decoder.cc output decoder {{ - std::string SparcStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const + std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const { std::stringstream ss; @@ -56,27 +59,5 @@ output decoder {{ return ss.str(); } - bool passesCondition(struct {uint8_t c:1; uint8_t v:1; uint8_t z:1; uint8_t n:1} codes, uint8_t condition) - { - switch(condition) - { - case 0b1000: return true; - case 0b0000: return false; - case 0b1001: return !codes.z; - case 0b0001: return codes.z; - case 0b1010: return !(codes.z | (codes.n ^ codes.v)); - case 0b0010: return codes.z | (codes.n ^ codes.v); - case 0b1011: return !(codes.n ^ codes.v); - case 0b0011: return (codes.n ^ codes.v); - case 0b1100: return !(codes.c | codes.z); - case 0b0100: return (codes.c | codes.z); - case 0b1101: return !codes.c; - case 0b0101: return codes.c; - case 0b1110: return !codes.n; - case 0b0110: return codes.n; - case 0b1111: return !codes.v; - case 0b0111: return codes.v; - } - } }}; |