diff options
Diffstat (limited to 'sim/mips/gencode.c')
| -rw-r--r-- | sim/mips/gencode.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/sim/mips/gencode.c b/sim/mips/gencode.c index 1e93b75..4685c0b 100644 --- a/sim/mips/gencode.c +++ b/sim/mips/gencode.c @@ -1017,13 +1017,17 @@ process_instructions(doarch,features) case ADD: case SUB: { - char *basetype = "unknown"; + char *signed_basetype = "unknown"; + char *unsigned_basetype = "unknown"; + switch (GETDATASIZE()) { case WORD : - basetype = "int"; + signed_basetype = "signed int"; + unsigned_basetype = "unsigned int"; break; case DOUBLEWORD : - basetype = "long long"; + signed_basetype = "word64"; + unsigned_basetype = "uword64"; break; default : fprintf(stderr,"Opcode table error: size of ADD/SUB operands not known (%d)\n",GETDATASIZE()); @@ -1031,8 +1035,8 @@ process_instructions(doarch,features) } if ((MIPS_DECODE[loop].type) == ADD) { - printf(" unsigned %s temp = (unsigned %s)(op1 + op2);\n",basetype,basetype); - printf(" signed %s tempS = (signed %s)temp;\n",basetype,basetype); + printf(" %s temp = (%s)(op1 + op2);\n", unsigned_basetype, unsigned_basetype); + printf(" %s tempS = (%s)temp;\n", signed_basetype, signed_basetype); if (MIPS_DECODE[loop].flags & OVERFLOW) { printf(" if (((op1 < 0) == (op2 < 0)) && ((tempS < 0) != (op1 < 0)))\n"); printf(" SignalException(IntegerOverflow);\n"); @@ -1043,8 +1047,8 @@ process_instructions(doarch,features) else /* only sign-extend when placing 32bit result in 64bit processor */ printf(" GPR[destreg] = SIGNEXTEND(((%s)temp),32);\n",regtype); } else { /* SUB */ - printf(" unsigned %s temp = (unsigned %s)(op1 - op2);\n",basetype,basetype); - printf(" signed %s tempS = (signed %s)temp;\n",basetype,basetype); + printf(" %s temp = (%s)(op1 - op2);\n", unsigned_basetype, unsigned_basetype); + printf(" %s tempS = (%s)temp;\n", signed_basetype, signed_basetype); if (MIPS_DECODE[loop].flags & OVERFLOW) { /* different signs => overflow if result_sign != arg_sign */ printf(" if (((op1 < 0) != (op2 < 0)) && ((tempS < 0) == (op1 < 0)))\n"); printf(" SignalException(IntegerOverflow);\n"); |