1// -*- mode:c++ -*- 2 3// Copyright (c) 2010 ARM Limited 4// All rights reserved 5// 6// The license below extends only to copyright in the software and shall 7// not be construed as granting a license to any other intellectual 8// property including but not limited to intellectual property relating --- 31 unchanged lines hidden (view full) --- 40// 41// Authors: Stephen Hines 42 43let {{ 44 45 calcCcCode = ''' 46 if (%(canOverflow)s){ 47 cprintf("canOverflow: %%d\\n", Rd < resTemp); |
48 CpsrQ = (Rd < resTemp) ? 1 << 27 : 0; |
49 } else { 50 uint16_t _ic, _iv, _iz, _in; 51 _in = (resTemp >> %(negBit)d) & 1; 52 _iz = (resTemp == 0); 53 _iv = %(ivValue)s & 1; 54 _ic = %(icValue)s & 1; 55 |
56 CondCodesF = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28; |
57 58 DPRINTF(Arm, "in = %%d\\n", _in); 59 DPRINTF(Arm, "iz = %%d\\n", _iz); 60 DPRINTF(Arm, "ic = %%d\\n", _ic); 61 DPRINTF(Arm, "iv = %%d\\n", _iv); 62 } 63 ''' 64}}; 65 66let {{ 67 def getCcCode(flagtype): 68 icReg = icImm = iv = '' 69 negBit = 31 70 canOverflow = 'false' 71 72 if flagtype == "none": |
73 icReg = icImm = 'CondCodesF<29:>' 74 iv = 'CondCodesF<28:>' |
75 elif flagtype == "llbit": |
76 icReg = icImm = 'CondCodesF<29:>' 77 iv = 'CondCodesF<28:>' |
78 negBit = 63 79 elif flagtype == "overflow": 80 canOverflow = "true" 81 icReg = icImm = iv = '0' 82 elif flagtype == "add": 83 icReg = icImm = 'findCarry(32, resTemp, Rn, op2)' 84 iv = 'findOverflow(32, resTemp, Rn, op2)' 85 elif flagtype == "sub": 86 icReg = icImm ='findCarry(32, resTemp, Rn, ~op2)' 87 iv = 'findOverflow(32, resTemp, Rn, ~op2)' 88 elif flagtype == "rsb": 89 icReg = icImm = 'findCarry(32, resTemp, op2, ~Rn)' 90 iv = 'findOverflow(32, resTemp, op2, ~Rn)' 91 else: |
92 icReg = 'shift_carry_rs(Rm, Rs<7:0>, shift, CondCodesF<29:>)' 93 icImm = 'shift_carry_imm(Rm, shift_size, shift, CondCodesF<29:>)' 94 iv = 'CondCodesF<28:>' |
95 return (calcCcCode % {"icValue" : icReg, 96 "ivValue" : iv, 97 "negBit" : negBit, 98 "canOverflow" : canOverflow }, 99 calcCcCode % {"icValue" : icImm, 100 "ivValue" : iv, 101 "negBit" : negBit, 102 "canOverflow" : canOverflow }) 103 104 def getImmCcCode(flagtype): 105 ivValue = icValue = '' 106 negBit = 31 107 canOverflow = 'false' 108 if flagtype == "none": |
109 icValue = 'CondCodesF<29:>' 110 ivValue = 'CondCodesF<28:>' |
111 elif flagtype == "llbit": |
112 icValue = 'CondCodesF<29:>' 113 ivValue = 'CondCodesF<28:>' |
114 negBit = 63 115 elif flagtype == "overflow": 116 icVaule = ivValue = '0' 117 canOverflow = "true" 118 elif flagtype == "add": 119 icValue = 'findCarry(32, resTemp, Rn, rotated_imm)' 120 ivValue = 'findOverflow(32, resTemp, Rn, rotated_imm)' 121 elif flagtype == "sub": 122 icValue = 'findCarry(32, resTemp, Rn, ~rotated_imm)' 123 ivValue = 'findOverflow(32, resTemp, Rn, ~rotated_imm)' 124 elif flagtype == "rsb": 125 icValue = 'findCarry(32, resTemp, rotated_imm, ~Rn)' 126 ivValue = 'findOverflow(32, resTemp, rotated_imm, ~Rn)' 127 elif flagtype == "modImm": 128 icValue = 'rotated_carry' |
129 ivValue = 'CondCodesF<28:>' |
130 else: |
131 icValue = '(rotate ? rotated_carry:CondCodesF<29:>)' 132 ivValue = 'CondCodesF<28:>' |
133 return calcCcCode % vars() 134}}; 135 136def format DataOp(code, flagtype = logic) {{ 137 (regCcCode, immCcCode) = getCcCode(flagtype) 138 regCode = '''uint32_t op2 = shift_rm_rs(Rm, Rs<7:0>, |
139 shift, CondCodesF<29:>); |
140 op2 = op2;''' + code 141 immCode = '''uint32_t op2 = shift_rm_imm(Rm, shift_size, |
142 shift, CondCodesF<29:>); |
143 op2 = op2;''' + code 144 regIop = InstObjParams(name, Name, 'PredIntOp', 145 {"code": regCode, 146 "predicate_test": predicateTest}) 147 immIop = InstObjParams(name, Name + "Imm", 'PredIntOp', 148 {"code": immCode, 149 "predicate_test": predicateTest}) 150 regCcIop = InstObjParams(name, Name + "Cc", 'PredIntOp', --- 59 unchanged lines hidden --- |