arm/insts/static_inst.cc

48 #include "base/condcodes.hh"
49 #include "base/cprintf.hh"
50 #include "base/loader/symtab.hh"
57 ArmStaticInst::shift_rm_imm(uint32_t base, uint32_t shamt,
67         return base << shamt;
72             return base >> shamt;
75             return (base >> 31) | -((base & (1 << 31)) >> 31);
77             return (base >> shamt) | -((base & (1 << 31)) >> shamt);
80             return (cfval << 31) | (base >> 1); // RRX
82             return (base << (32 - shamt)) | (base >> shamt);
92 ArmStaticInst::shiftReg64(uint64_t base, uint64_t shiftAmt,
102         return base << shiftAmt;
105             return base;
107             return (base & mask(width)) >> shiftAmt;
110             return base;
112             int sign_bit = bits(base, intWidth - 1);
113             base >>= shiftAmt;
114             base = sign_bit ? (base | ~mask(intWidth - shiftAmt)) : base;
115             return base & mask(intWidth);
119             return base;
121             return (base << (width - shiftAmt)) | (base >> shiftAmt);
131 ArmStaticInst::extendReg64(uint64_t base, ArmExtendType type,
167     uint64_t tmp = (uint64_t) bits(base, len - 1, 0) << shiftAmt;
177 ArmStaticInst::shift_rm_rs(uint32_t base, uint32_t shamt,
189             return base << shamt;
194             return base >> shamt;
197             return (base >> 31) | -((base & (1 << 31)) >> 31);
199             return (base >> shamt) | -((base & (1 << 31)) >> shamt);
203             return base;
205             return (base << (32 - shamt)) | (base >> shamt);
217 ArmStaticInst::shift_carry_imm(uint32_t base, uint32_t shamt,
229             return (base >> (32 - shamt)) & 1;
232             return (base >> 31);
234             return (base >> (shamt - 1)) & 1;
237             return (base >> 31);
239             return (base >> (shamt - 1)) & 1;
243             return (base & 1); // RRX
245             return (base >> (shamt - 1)) & 1;
257 ArmStaticInst::shift_carry_rs(uint32_t base, uint32_t shamt,
272             return (base >> (32 - shamt)) & 1;
277             return (base >> (shamt - 1)) & 1;
281         return (base >> (shamt - 1)) & 1;
286         return (base >> (shamt - 1)) & 1;