diff options
Diffstat (limited to 'arch/mips/isa/formats/mem.isa')
-rw-r--r-- | arch/mips/isa/formats/mem.isa | 9 |
1 files changed, 8 insertions, 1 deletions
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); } }}; |