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1
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2 from ..basetarget import Target
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345
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3 from ..arm.registers import R0, R1, R2, R3, R4, R5, R6, R7
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4 from ..arm.registers import R8, R9, R10, R11, R12, SP, LR, PC
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342
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5 from ..arm.registers import register_range
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6
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7 from .instructions import Dcd, Mov, Add, Sub, Orr1, Mul, Mov2
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8 from .instructions import B, Bl, Ble, Bgt, Beq, Blt
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9 from .instructions import Push, Pop, Str, Ldr, Ldr3, Str1, Ldr1
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10 from .selector import ArmInstructionSelector
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11 from .frame import ArmFrame
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342
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12
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13 class ArmTarget(Target):
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342
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14 def __init__(self):
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15 super().__init__('arm')
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16 self.make_parser()
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17 self.ins_sel = ArmInstructionSelector()
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18 self.FrameClass = ArmFrame
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19
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20 self.add_lowering(Ldr3, lambda im: Ldr3(im.dst[0], im.others[0]))
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21 self.add_lowering(Str1, lambda im: Str1(im.src[1], im.src[0], im.others[0]))
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22 self.add_lowering(Ldr1, lambda im: Ldr1(im.dst[0], im.src[0], im.others[0]))
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23 self.add_lowering(Mov2, lambda im: Mov2(im.dst[0], im.src[0]))
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24
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25 def make_parser(self):
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342
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26 # Assembly grammar:
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27 self.add_keyword('r0')
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28 self.add_keyword('r1')
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29 self.add_keyword('r2')
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30 self.add_keyword('r3')
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31 self.add_keyword('r4')
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32 self.add_keyword('r5')
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33 self.add_keyword('r6')
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34 self.add_keyword('r7')
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35 self.add_keyword('r8')
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36 self.add_keyword('r9')
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37 self.add_keyword('r10')
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38 self.add_keyword('r11')
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39 self.add_keyword('r12')
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40 self.add_keyword('sp')
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41 self.add_keyword('lr')
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42 self.add_keyword('pc')
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43
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44 self.add_rule('reg', ['r0'], lambda rhs: R0)
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45 self.add_rule('reg', ['r1'], lambda rhs: R1)
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46 self.add_rule('reg', ['r2'], lambda rhs: R2)
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47 self.add_rule('reg', ['r3'], lambda rhs: R3)
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48 self.add_rule('reg', ['r4'], lambda rhs: R4)
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49 self.add_rule('reg', ['r5'], lambda rhs: R5)
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50 self.add_rule('reg', ['r6'], lambda rhs: R6)
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51 self.add_rule('reg', ['r7'], lambda rhs: R7)
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52 self.add_rule('reg', ['r8'], lambda rhs: R8)
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53 self.add_rule('reg', ['r9'], lambda rhs: R9)
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54 self.add_rule('reg', ['r10'], lambda rhs: R10)
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55 self.add_rule('reg', ['r11'], lambda rhs: R11)
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56 self.add_rule('reg', ['r12'], lambda rhs: R12)
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57 self.add_rule('reg', ['sp'], lambda rhs: SP)
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58 self.add_rule('reg', ['lr'], lambda rhs: LR)
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59 self.add_rule('reg', ['pc'], lambda rhs: PC)
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60
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61 self.add_keyword('dcd')
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62 self.add_instruction(['dcd', 'imm32'],
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63 lambda rhs: Dcd(rhs[1]))
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64
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65 self.add_keyword('mov')
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66 self.add_instruction(['mov', 'reg', ',', 'imm32'],
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67 lambda rhs: Mov(rhs[1], rhs[3]))
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68
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69 self.add_keyword('add')
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70 self.add_instruction(['add', 'reg', ',', 'reg', ',', 'imm32'],
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71 lambda rhs: Add(rhs[1], rhs[3], rhs[5]))
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72
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73 self.add_instruction(['add', 'reg', ',', 'reg', ',', 'reg'],
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74 lambda rhs: Add(rhs[1], rhs[3], rhs[5]))
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75
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76 self.add_keyword('sub')
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77 self.add_instruction(['sub', 'reg', ',', 'reg', ',', 'imm32'],
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78 lambda rhs: Sub(rhs[1], rhs[3], rhs[5]))
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79
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80 self.add_instruction(['sub', 'reg', ',', 'reg', ',', 'reg'],
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81 lambda rhs: Sub(rhs[1], rhs[3], rhs[5]))
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82
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83 self.add_keyword('mul')
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84 self.add_instruction(['mul', 'reg', ',', 'reg', ',', 'reg'],
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85 lambda rhs: Mul(rhs[1], rhs[3], rhs[5]))
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86
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87 self.add_keyword('orr')
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88 self.add_instruction(['orr', 'reg', ',', 'reg', ',', 'reg'],
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89 lambda rhs: Orr1(rhs[1], rhs[3], rhs[5]))
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90
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91
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92 # Jumping:
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93 self.add_keyword('b')
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94 self.add_instruction(['b', 'ID'], lambda rhs: B(rhs[1].val))
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95 self.add_keyword('ble')
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96 self.add_instruction(['ble', 'ID'], lambda rhs: Ble(rhs[1].val))
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97 self.add_keyword('bgt')
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98 self.add_instruction(['bgt', 'ID'], lambda rhs: Bgt(rhs[1].val))
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99 self.add_keyword('beq')
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100 self.add_instruction(['beq', 'ID'], lambda rhs: Beq(rhs[1].val))
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101 self.add_keyword('blt')
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102 self.add_instruction(['blt', 'ID'], lambda rhs: Blt(rhs[1].val))
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103
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104 self.add_keyword('bl')
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105 self.add_instruction(['bl', 'ID'], lambda rhs: Bl(rhs[1].val))
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106
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107 # memory:
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108 self.add_keyword('pop')
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109 self.add_instruction(['pop', 'reg_list'], lambda rhs: Pop(rhs[1]))
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110
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111 self.add_keyword('push')
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112 self.add_instruction(['push', 'reg_list'], lambda rhs: Push(rhs[1]))
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113
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114 self.add_keyword('ldr')
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115 self.add_instruction(['ldr', 'reg', ',', '[', 'reg', ',', 'imm8', ']'],
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116 lambda rhs: Ldr(rhs[1], rhs[4], rhs[6]))
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117
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118 self.add_instruction(['ldr', 'reg', ',', 'ID'],
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119 lambda rhs: Ldr(rhs[1], rhs[3].val))
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120
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121 self.add_keyword('str')
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122 self.add_instruction(['str', 'reg', ',', '[', 'reg', ',', 'imm8', ']'],
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123 lambda rhs: Str(rhs[1], rhs[4], rhs[6]))
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124
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125 self.add_instruction(['str', 'reg', ',', '[', 'reg', ',', 'reg', ']'],
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126 lambda rhs: Str(rhs[1], rhs[4], rhs[6]))
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127
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128 # Register list grammar:
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129 self.add_rule('reg_list', ['{', 'reg_list_inner', '}'],
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130 lambda rhs: rhs[1])
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131 self.add_rule('reg_list_inner', ['reg_or_range'],
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132 lambda rhs: rhs[0])
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133 self.add_rule('reg_list_inner', ['reg_or_range', ',', 'reg_list_inner'],
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134 lambda rhs: rhs[0] | rhs[2])
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135 self.add_rule('reg_or_range', ['reg'], lambda rhs: {rhs[0]})
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136
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137 self.add_rule('reg_or_range', ['reg', '-', 'reg'],
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138 lambda rhs: register_range(rhs[0], rhs[2]))
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