1 | (* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= *) |
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2 | (* Interpret.ma: Operational semantics for the 8051/8052 processor. *) |
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3 | (* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= *) |
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4 | |
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5 | include "ASM/ASM.ma". |
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6 | include "ASM/Arithmetic.ma". |
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7 | include "ASM/BitVectorTrie.ma". |
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8 | include "basics/russell.ma". |
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9 | |
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10 | definition Time ≝ nat. |
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11 | |
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12 | inductive SerialBufferType: Type[0] ≝ |
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13 | Eight: Byte → SerialBufferType |
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14 | | Nine: Bit → Byte → SerialBufferType. |
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15 | |
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16 | inductive LineType: Type[0] ≝ |
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17 | P1: Byte → LineType |
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18 | | P3: Byte → LineType |
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19 | | SerialBuffer: SerialBufferType → LineType. |
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20 | |
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21 | (* What is a continuation, now? *) |
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22 | |
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23 | inductive SFR8051: Type[0] ≝ |
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24 | SFR_SP: SFR8051 |
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25 | | SFR_DPL: SFR8051 |
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26 | | SFR_DPH: SFR8051 |
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27 | | SFR_PCON: SFR8051 |
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28 | | SFR_TCON: SFR8051 |
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29 | | SFR_TMOD: SFR8051 |
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30 | | SFR_TL0: SFR8051 |
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31 | | SFR_TL1: SFR8051 |
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32 | | SFR_TH0: SFR8051 |
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33 | | SFR_TH1: SFR8051 |
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34 | | SFR_P1: SFR8051 |
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35 | | SFR_SCON: SFR8051 |
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36 | | SFR_SBUF: SFR8051 |
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37 | | SFR_IE: SFR8051 |
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38 | | SFR_P3: SFR8051 |
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39 | | SFR_IP: SFR8051 |
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40 | | SFR_PSW: SFR8051 |
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41 | | SFR_ACC_A: SFR8051 |
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42 | | SFR_ACC_B: SFR8051. |
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43 | |
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44 | definition sfr_8051_index ≝ |
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45 | λs: SFR8051. |
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46 | match s with |
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47 | [ SFR_SP ⇒ O |
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48 | | SFR_DPL ⇒ 1 |
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49 | | SFR_DPH ⇒ 2 |
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50 | | SFR_PCON ⇒ 3 |
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51 | | SFR_TCON ⇒ 4 |
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52 | | SFR_TMOD ⇒ 5 |
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53 | | SFR_TL0 ⇒ 6 |
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54 | | SFR_TL1 ⇒ 7 |
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55 | | SFR_TH0 ⇒ 8 |
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56 | | SFR_TH1 ⇒ 9 |
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57 | | SFR_P1 ⇒ 10 |
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58 | | SFR_SCON ⇒ 11 |
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59 | | SFR_SBUF ⇒ 12 |
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60 | | SFR_IE ⇒ 13 |
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61 | | SFR_P3 ⇒ 14 |
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62 | | SFR_IP ⇒ 15 |
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63 | | SFR_PSW ⇒ 16 |
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64 | | SFR_ACC_A ⇒ 17 |
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65 | | SFR_ACC_B ⇒ 18 |
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66 | ]. |
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67 | |
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68 | inductive SFR8052: Type[0] ≝ |
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69 | SFR_T2CON: SFR8052 |
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70 | | SFR_RCAP2L: SFR8052 |
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71 | | SFR_RCAP2H: SFR8052 |
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72 | | SFR_TL2: SFR8052 |
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73 | | SFR_TH2: SFR8052. |
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74 | |
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75 | definition sfr_8052_index ≝ |
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76 | λs: SFR8052. |
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77 | match s with |
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78 | [ SFR_T2CON ⇒ O |
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79 | | SFR_RCAP2L ⇒ 1 |
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80 | | SFR_RCAP2H ⇒ 2 |
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81 | | SFR_TL2 ⇒ 3 |
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82 | | SFR_TH2 ⇒ 4 |
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83 | ]. |
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84 | |
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85 | (* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= *) |
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86 | (* Processor status. *) |
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87 | (* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= *) |
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88 | record PreStatus (M: Type[0]) (code_memory: M) : Type[0] ≝ |
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89 | { |
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90 | low_internal_ram: BitVectorTrie Byte 7; |
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91 | high_internal_ram: BitVectorTrie Byte 7; |
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92 | external_ram: BitVectorTrie Byte 16; |
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93 | |
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94 | program_counter: Word; |
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95 | |
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96 | special_function_registers_8051: Vector Byte 19; |
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97 | special_function_registers_8052: Vector Byte 5; |
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98 | |
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99 | p1_latch: Byte; |
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100 | p3_latch: Byte; |
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101 | |
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102 | clock: Time |
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103 | }. |
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104 | |
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105 | definition Status ≝ PreStatus (BitVectorTrie Byte 16). |
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106 | definition PseudoStatus ≝ PreStatus (pseudo_assembly_program). |
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107 | |
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108 | lemma sfr8051_index_19: |
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109 | ∀i: SFR8051. |
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110 | sfr_8051_index i < 19. |
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111 | # i |
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112 | cases i |
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113 | normalize |
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114 | repeat (@ le_S_S) |
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115 | @ le_O_n |
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116 | qed. |
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117 | |
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118 | lemma sfr8052_index_5: |
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119 | ∀i: SFR8052. |
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120 | sfr_8052_index i < 5. |
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121 | # i |
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122 | cases i |
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123 | normalize |
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124 | repeat (@ le_S_S) |
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125 | @ le_O_n |
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126 | qed. |
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127 | |
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128 | definition set_clock ≝ |
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129 | λM: Type[0]. |
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130 | λcode_memory:M. |
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131 | λs: PreStatus M code_memory. |
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132 | λt: Time. |
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133 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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134 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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135 | let old_external_ram ≝ external_ram ?? s in |
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136 | let old_program_counter ≝ program_counter ?? s in |
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137 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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138 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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139 | let old_p1_latch ≝ p1_latch ?? s in |
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140 | let old_p3_latch ≝ p3_latch ?? s in |
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141 | mk_PreStatus M code_memory |
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142 | old_low_internal_ram |
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143 | old_high_internal_ram |
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144 | old_external_ram |
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145 | old_program_counter |
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146 | old_special_function_registers_8051 |
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147 | old_special_function_registers_8052 |
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148 | old_p1_latch |
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149 | old_p3_latch |
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150 | t. |
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151 | |
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152 | definition set_p1_latch ≝ |
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153 | λM: Type[0]. |
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154 | λcode_memory:M. |
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155 | λs: PreStatus M code_memory. |
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156 | λb: Byte. |
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157 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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158 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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159 | let old_external_ram ≝ external_ram ?? s in |
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160 | let old_program_counter ≝ program_counter ?? s in |
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161 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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162 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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163 | let old_p3_latch ≝ p3_latch ?? s in |
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164 | let old_clock ≝ clock ?? s in |
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165 | mk_PreStatus M code_memory |
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166 | old_low_internal_ram |
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167 | old_high_internal_ram |
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168 | old_external_ram |
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169 | old_program_counter |
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170 | old_special_function_registers_8051 |
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171 | old_special_function_registers_8052 |
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172 | b |
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173 | old_p3_latch |
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174 | old_clock. |
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175 | |
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176 | definition set_p3_latch ≝ |
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177 | λM: Type[0]. |
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178 | λcode_memory:M. |
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179 | λs: PreStatus M code_memory. |
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180 | λb: Byte. |
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181 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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182 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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183 | let old_external_ram ≝ external_ram ?? s in |
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184 | let old_program_counter ≝ program_counter ?? s in |
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185 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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186 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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187 | let old_p1_latch ≝ p1_latch ?? s in |
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188 | let old_clock ≝ clock ?? s in |
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189 | mk_PreStatus M code_memory |
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190 | old_low_internal_ram |
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191 | old_high_internal_ram |
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192 | old_external_ram |
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193 | old_program_counter |
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194 | old_special_function_registers_8051 |
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195 | old_special_function_registers_8052 |
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196 | old_p1_latch |
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197 | b |
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198 | old_clock. |
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199 | |
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200 | definition get_8051_sfr ≝ |
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201 | λM: Type[0]. |
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202 | λcode_memory:M. |
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203 | λs: PreStatus M code_memory. |
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204 | λi: SFR8051. |
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205 | let sfr ≝ special_function_registers_8051 ?? s in |
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206 | let index ≝ sfr_8051_index i in |
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207 | get_index_v … sfr index ?. |
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208 | @ sfr8051_index_19 |
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209 | qed. |
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210 | |
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211 | definition get_8052_sfr ≝ |
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212 | λM: Type[0]. |
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213 | λcode_memory:M. |
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214 | λs: PreStatus M code_memory. |
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215 | λi: SFR8052. |
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216 | let sfr ≝ special_function_registers_8052 ?? s in |
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217 | let index ≝ sfr_8052_index i in |
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218 | get_index_v … sfr index ?. |
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219 | @ sfr8052_index_5 |
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220 | qed. |
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221 | |
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222 | definition set_8051_sfr ≝ |
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223 | λM: Type[0]. |
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224 | λcode_memory:M. |
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225 | λs: PreStatus M code_memory. |
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226 | λi: SFR8051. |
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227 | λb: Byte. |
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228 | let index ≝ sfr_8051_index i in |
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229 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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230 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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231 | let old_external_ram ≝ external_ram ?? s in |
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232 | let old_program_counter ≝ program_counter ?? s in |
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233 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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234 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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235 | let new_special_function_registers_8051 ≝ |
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236 | set_index Byte 19 old_special_function_registers_8051 index b ? in |
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237 | let old_p1_latch ≝ p1_latch ?? s in |
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238 | let old_p3_latch ≝ p3_latch ?? s in |
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239 | let old_clock ≝ clock ?? s in |
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240 | mk_PreStatus M code_memory |
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241 | old_low_internal_ram |
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242 | old_high_internal_ram |
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243 | old_external_ram |
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244 | old_program_counter |
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245 | new_special_function_registers_8051 |
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246 | old_special_function_registers_8052 |
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247 | old_p1_latch |
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248 | old_p3_latch |
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249 | old_clock. |
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250 | @ (sfr8051_index_19 i) |
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251 | qed. |
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252 | |
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253 | definition set_8052_sfr ≝ |
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254 | λM: Type[0]. |
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255 | λcode_memory:M. |
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256 | λs: PreStatus M code_memory. |
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257 | λi: SFR8052. |
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258 | λb: Byte. |
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259 | let index ≝ sfr_8052_index i in |
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260 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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261 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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262 | let old_external_ram ≝ external_ram ?? s in |
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263 | let old_program_counter ≝ program_counter ?? s in |
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264 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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265 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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266 | let new_special_function_registers_8052 ≝ |
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267 | set_index Byte 5 old_special_function_registers_8052 index b ? in |
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268 | let old_p1_latch ≝ p1_latch ?? s in |
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269 | let old_p3_latch ≝ p3_latch ?? s in |
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270 | let old_clock ≝ clock ?? s in |
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271 | mk_PreStatus M code_memory |
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272 | old_low_internal_ram |
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273 | old_high_internal_ram |
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274 | old_external_ram |
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275 | old_program_counter |
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276 | old_special_function_registers_8051 |
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277 | new_special_function_registers_8052 |
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278 | old_p1_latch |
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279 | old_p3_latch |
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280 | old_clock. |
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281 | @ (sfr8052_index_5 i) |
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282 | qed. |
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283 | |
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284 | definition set_program_counter ≝ |
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285 | λM: Type[0]. |
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286 | λcode_memory:M. |
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287 | λs: PreStatus M code_memory. |
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288 | λw: Word. |
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289 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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290 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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291 | let old_external_ram ≝ external_ram ?? s in |
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292 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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293 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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294 | let old_p1_latch ≝ p1_latch ?? s in |
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295 | let old_p3_latch ≝ p3_latch ?? s in |
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296 | let old_clock ≝ clock ?? s in |
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297 | mk_PreStatus M code_memory |
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298 | old_low_internal_ram |
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299 | old_high_internal_ram |
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300 | old_external_ram |
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301 | w |
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302 | old_special_function_registers_8051 |
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303 | old_special_function_registers_8052 |
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304 | old_p1_latch |
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305 | old_p3_latch |
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306 | old_clock. |
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307 | |
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308 | definition set_code_memory ≝ |
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309 | λM,M': Type[0]. |
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310 | λcode_memory:M. |
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311 | λs: PreStatus M code_memory. |
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312 | λr: M'. |
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313 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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314 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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315 | let old_external_ram ≝ external_ram ?? s in |
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316 | let old_program_counter ≝ program_counter ?? s in |
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317 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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318 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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319 | let old_p1_latch ≝ p1_latch ?? s in |
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320 | let old_p3_latch ≝ p3_latch ?? s in |
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321 | let old_clock ≝ clock ?? s in |
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322 | mk_PreStatus M' r |
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323 | old_low_internal_ram |
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324 | old_high_internal_ram |
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325 | old_external_ram |
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326 | old_program_counter |
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327 | old_special_function_registers_8051 |
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328 | old_special_function_registers_8052 |
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329 | old_p1_latch |
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330 | old_p3_latch |
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331 | old_clock. |
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332 | |
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333 | definition set_low_internal_ram ≝ |
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334 | λM: Type[0]. |
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335 | λcode_memory:M. |
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336 | λs: PreStatus M code_memory. |
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337 | λr: BitVectorTrie Byte 7. |
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338 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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339 | let old_external_ram ≝ external_ram ?? s in |
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340 | let old_program_counter ≝ program_counter ?? s in |
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341 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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342 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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343 | let old_p1_latch ≝ p1_latch ?? s in |
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344 | let old_p3_latch ≝ p3_latch ?? s in |
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345 | let old_clock ≝ clock ?? s in |
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346 | mk_PreStatus M code_memory |
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347 | r |
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348 | old_high_internal_ram |
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349 | old_external_ram |
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350 | old_program_counter |
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351 | old_special_function_registers_8051 |
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352 | old_special_function_registers_8052 |
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353 | old_p1_latch |
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354 | old_p3_latch |
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355 | old_clock. |
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356 | |
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357 | definition set_high_internal_ram ≝ |
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358 | λM: Type[0]. |
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359 | λcode_memory:M. |
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360 | λs: PreStatus M code_memory. |
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361 | λr: BitVectorTrie Byte 7. |
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362 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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363 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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364 | let old_external_ram ≝ external_ram ?? s in |
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365 | let old_program_counter ≝ program_counter ?? s in |
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366 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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367 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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368 | let old_p1_latch ≝ p1_latch ?? s in |
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369 | let old_p3_latch ≝ p3_latch ?? s in |
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370 | let old_clock ≝ clock ?? s in |
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371 | mk_PreStatus M code_memory |
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372 | old_low_internal_ram |
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373 | r |
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374 | old_external_ram |
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375 | old_program_counter |
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376 | old_special_function_registers_8051 |
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377 | old_special_function_registers_8052 |
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378 | old_p1_latch |
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379 | old_p3_latch |
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380 | old_clock. |
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381 | |
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382 | definition set_external_ram ≝ |
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383 | λM: Type[0]. |
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384 | λcode_memory:M. |
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385 | λs: PreStatus M code_memory. |
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386 | λr: BitVectorTrie Byte 16. |
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387 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
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388 | let old_high_internal_ram ≝ high_internal_ram ?? s in |
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389 | let old_program_counter ≝ program_counter ?? s in |
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390 | let old_special_function_registers_8051 ≝ special_function_registers_8051 ?? s in |
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391 | let old_special_function_registers_8052 ≝ special_function_registers_8052 ?? s in |
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392 | let old_p1_latch ≝ p1_latch ?? s in |
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393 | let old_p3_latch ≝ p3_latch ?? s in |
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394 | let old_clock ≝ clock ?? s in |
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395 | mk_PreStatus M code_memory |
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396 | old_low_internal_ram |
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397 | old_high_internal_ram |
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398 | r |
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399 | old_program_counter |
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400 | old_special_function_registers_8051 |
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401 | old_special_function_registers_8052 |
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402 | old_p1_latch |
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403 | old_p3_latch |
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404 | old_clock. |
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405 | |
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406 | definition get_cy_flag ≝ |
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407 | λM: Type[0]. |
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408 | λcode_memory:M. |
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409 | λs: PreStatus M code_memory. |
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410 | let sfr ≝ special_function_registers_8051 ?? s in |
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411 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
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412 | get_index_v bool 8 psw O ?. |
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413 | normalize |
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414 | @ (le_S_S ? ?) |
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415 | [ @ le_O_n |
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416 | | repeat (@ (le_S_S)); |
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417 | // |
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418 | ] |
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419 | qed. |
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420 | |
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421 | definition get_ac_flag ≝ |
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422 | λM: Type[0]. |
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423 | λcode_memory:M. |
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424 | λs: PreStatus M code_memory. |
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425 | let sfr ≝ special_function_registers_8051 ?? s in |
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426 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
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427 | get_index_v bool 8 psw 1 ?. |
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428 | normalize |
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429 | repeat (@ (le_S_S ? ?)) |
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430 | @ le_O_n |
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431 | qed. |
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432 | |
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433 | definition get_fo_flag ≝ |
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434 | λM: Type[0]. |
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435 | λcode_memory:M. |
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436 | λs: PreStatus M code_memory. |
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437 | let sfr ≝ special_function_registers_8051 ?? s in |
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438 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
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439 | get_index_v bool 8 psw 2 ?. |
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440 | normalize |
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441 | repeat (@ (le_S_S ? ?)) |
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442 | @ le_O_n |
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443 | qed. |
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444 | |
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445 | definition get_rs1_flag ≝ |
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446 | λM: Type[0]. |
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447 | λcode_memory:M. |
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448 | λs: PreStatus M code_memory. |
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449 | let sfr ≝ special_function_registers_8051 ?? s in |
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450 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
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451 | get_index_v bool 8 psw 3 ?. |
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452 | normalize |
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453 | repeat (@ (le_S_S ? ?)) |
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454 | @ le_O_n |
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455 | qed. |
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456 | |
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457 | definition get_rs0_flag ≝ |
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458 | λM: Type[0]. |
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459 | λcode_memory:M. |
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460 | λs: PreStatus M code_memory. |
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461 | let sfr ≝ special_function_registers_8051 ?? s in |
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462 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
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463 | get_index_v bool 8 psw 4 ?. |
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464 | normalize |
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465 | repeat (@ (le_S_S ? ?)) |
---|
466 | @ le_O_n |
---|
467 | qed. |
---|
468 | |
---|
469 | definition get_ov_flag ≝ |
---|
470 | λM: Type[0]. |
---|
471 | λcode_memory:M. |
---|
472 | λs: PreStatus M code_memory. |
---|
473 | let sfr ≝ special_function_registers_8051 ?? s in |
---|
474 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
---|
475 | get_index_v bool 8 psw 5 ?. |
---|
476 | normalize |
---|
477 | repeat (@ (le_S_S ? ?)) |
---|
478 | @ le_O_n |
---|
479 | qed. |
---|
480 | |
---|
481 | definition get_ud_flag ≝ |
---|
482 | λM: Type[0]. |
---|
483 | λcode_memory:M. |
---|
484 | λs: PreStatus M code_memory. |
---|
485 | let sfr ≝ special_function_registers_8051 ?? s in |
---|
486 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
---|
487 | get_index_v bool 8 psw 6 ?. |
---|
488 | normalize |
---|
489 | repeat (@ (le_S_S ? ?)) |
---|
490 | @ le_O_n |
---|
491 | qed. |
---|
492 | |
---|
493 | definition get_p_flag ≝ |
---|
494 | λM: Type[0]. |
---|
495 | λcode_memory:M. |
---|
496 | λs: PreStatus M code_memory. |
---|
497 | let sfr ≝ special_function_registers_8051 ?? s in |
---|
498 | let psw ≝ get_index_v Byte 19 sfr (sfr_8051_index SFR_PSW) ? in |
---|
499 | get_index_v bool 8 psw 7 ?. |
---|
500 | normalize |
---|
501 | repeat (@ (le_S_S ? ?)) |
---|
502 | @ le_O_n |
---|
503 | qed. |
---|
504 | |
---|
505 | definition set_flags ≝ |
---|
506 | λM: Type[0]. |
---|
507 | λcode_memory:M. |
---|
508 | λs: PreStatus M code_memory. |
---|
509 | λcy: Bit. |
---|
510 | λac: option Bit. |
---|
511 | λov: Bit. |
---|
512 | let sfr_psw ≝ get_8051_sfr ?? s SFR_PSW in |
---|
513 | let old_cy ≝ get_index_v ?? sfr_psw O ? in |
---|
514 | let old_ac ≝ get_index_v ?? sfr_psw 1 ? in |
---|
515 | let old_fo ≝ get_index_v ?? sfr_psw 2 ? in |
---|
516 | let old_rs1 ≝ get_index_v ?? sfr_psw 3 ? in |
---|
517 | let old_rs0 ≝ get_index_v ?? sfr_psw 4 ? in |
---|
518 | let old_ov ≝ get_index_v ?? sfr_psw 5 ? in |
---|
519 | let old_ud ≝ get_index_v ?? sfr_psw 6 ? in |
---|
520 | let old_p ≝ get_index_v ?? sfr_psw 7 ? in |
---|
521 | let new_ac ≝ match ac with [ None ⇒ old_ac | Some j ⇒ j ] in |
---|
522 | set_8051_sfr ?? s SFR_PSW |
---|
523 | [[ old_cy ; new_ac ; old_fo ; old_rs1 ; |
---|
524 | old_rs0 ; old_ov ; old_ud ; old_p ]]. |
---|
525 | [1,2,3,4,5,6,7,8: |
---|
526 | normalize |
---|
527 | repeat (@ le_S_S) |
---|
528 | @ le_O_n |
---|
529 | ] |
---|
530 | qed. |
---|
531 | |
---|
532 | definition initialise_status ≝ |
---|
533 | λM: Type[0]. |
---|
534 | λcode_mem: M. |
---|
535 | let status ≝ mk_PreStatus M code_mem (* Code mem. *) |
---|
536 | (Stub Byte 7) (* Low mem. *) |
---|
537 | (Stub Byte 7) (* High mem. *) |
---|
538 | (Stub Byte 16) (* Ext mem. *) |
---|
539 | (zero 16) (* PC. *) |
---|
540 | (replicate Byte 19 (zero 8)) (* 8051 SFR. *) |
---|
541 | (replicate Byte 5 (zero 8)) (* 8052 SFR. *) |
---|
542 | (zero 8) (* P1 latch. *) |
---|
543 | (zero 8) (* P3 latch. *) |
---|
544 | O (* Clock. *) |
---|
545 | in |
---|
546 | set_8051_sfr ?? status SFR_SP (bitvector_of_nat 8 7). |
---|
547 | |
---|
548 | |
---|
549 | definition sfr_of_Byte: Byte → option (SFR8051 + SFR8052) ≝ |
---|
550 | λb: Byte. |
---|
551 | let address ≝ nat_of_bitvector … b in |
---|
552 | if (eqb address 128) then None ? |
---|
553 | else if (eqb address 144) then Some … (inl … SFR_P1) |
---|
554 | else if (eqb address 160) then None ? |
---|
555 | else if (eqb address 176) then Some … (inl … SFR_P3) |
---|
556 | else if (eqb address 153) then Some … (inl … SFR_SBUF) |
---|
557 | else if (eqb address 138) then Some … (inl … SFR_TL0) |
---|
558 | else if (eqb address 139) then Some … (inl … SFR_TL1) |
---|
559 | else if (eqb address 140) then Some … (inl … SFR_TH0) |
---|
560 | else if (eqb address 141) then Some … (inl … SFR_TH1) |
---|
561 | else if (eqb address 200) then Some … (inr … SFR_T2CON) |
---|
562 | else if (eqb address 202) then Some … (inr … SFR_RCAP2L) |
---|
563 | else if (eqb address 203) then Some … (inr … SFR_RCAP2H) |
---|
564 | else if (eqb address 204) then Some … (inr … SFR_TL2) |
---|
565 | else if (eqb address 205) then Some … (inr … SFR_TH2) |
---|
566 | else if (eqb address 135) then Some … (inl … SFR_PCON) |
---|
567 | else if (eqb address 136) then Some … (inl … SFR_TCON) |
---|
568 | else if (eqb address 137) then Some … (inl … SFR_TMOD) |
---|
569 | else if (eqb address 152) then Some … (inl … SFR_SCON) |
---|
570 | else if (eqb address 168) then Some … (inl … SFR_IE) |
---|
571 | else if (eqb address 184) then Some … (inl … SFR_IP) |
---|
572 | else if (eqb address 129) then Some … (inl … SFR_SP) |
---|
573 | else if (eqb address 130) then Some … (inl … SFR_DPL) |
---|
574 | else if (eqb address 131) then Some … (inl … SFR_DPH) |
---|
575 | else if (eqb address 208) then Some … (inl … SFR_PSW) |
---|
576 | else if (eqb address 224) then Some … (inl … SFR_ACC_A) |
---|
577 | else if (eqb address 240) then Some … (inl … SFR_ACC_B) |
---|
578 | else None ?. |
---|
579 | |
---|
580 | definition get_bit_addressable_sfr: |
---|
581 | ∀M: Type[0]. ∀code_memory: M. ∀s: PreStatus M code_memory. Byte → bool → Byte ≝ |
---|
582 | λM: Type[0]. |
---|
583 | λcode_memory:M. |
---|
584 | λs: PreStatus M code_memory. |
---|
585 | λb: Byte. |
---|
586 | λl: bool. |
---|
587 | match sfr_of_Byte b with |
---|
588 | [ None ⇒ match not_implemented in False with [ ] |
---|
589 | | Some sfr8051_8052 ⇒ |
---|
590 | match sfr8051_8052 with |
---|
591 | [ inl sfr ⇒ |
---|
592 | match sfr with |
---|
593 | [ SFR_P1 ⇒ |
---|
594 | if l then |
---|
595 | p1_latch … s |
---|
596 | else |
---|
597 | get_8051_sfr … s SFR_P1 |
---|
598 | | SFR_P3 ⇒ |
---|
599 | if l then |
---|
600 | p3_latch … s |
---|
601 | else |
---|
602 | get_8051_sfr … s SFR_P3 |
---|
603 | | _ ⇒ get_8051_sfr … s sfr |
---|
604 | ] |
---|
605 | | inr sfr ⇒ get_8052_sfr M code_memory s sfr |
---|
606 | ] |
---|
607 | ]. |
---|
608 | |
---|
609 | definition set_bit_addressable_sfr: |
---|
610 | ∀M: Type[0]. ∀code_memory: M. ∀s: PreStatus M code_memory. Byte → Byte → PreStatus M code_memory ≝ |
---|
611 | λM: Type[0]. |
---|
612 | λcode_memory:M. |
---|
613 | λs: PreStatus M code_memory. |
---|
614 | λb: Byte. |
---|
615 | λv: Byte. |
---|
616 | match sfr_of_Byte b with |
---|
617 | [ None ⇒ match not_implemented in False with [ ] |
---|
618 | | Some sfr8051_8052 ⇒ |
---|
619 | match sfr8051_8052 with |
---|
620 | [ inl sfr ⇒ |
---|
621 | match sfr with |
---|
622 | [ SFR_P1 ⇒ |
---|
623 | let status_1 ≝ set_8051_sfr ?? s SFR_P1 v in |
---|
624 | set_p1_latch ?? s v |
---|
625 | | SFR_P3 ⇒ |
---|
626 | let status_1 ≝ set_8051_sfr ?? s SFR_P3 v in |
---|
627 | set_p3_latch ?? s v |
---|
628 | | _ ⇒ set_8051_sfr ?? s sfr v ] |
---|
629 | | inr sfr ⇒ set_8052_sfr ?? s sfr v ]]. |
---|
630 | |
---|
631 | lemma clock_set_bit_addressable_sfr: |
---|
632 | ∀M: Type[0]. ∀code_memory: M. ∀s: PreStatus M code_memory. ∀b: Byte. ∀v: Byte. |
---|
633 | clock … code_memory s = clock … code_memory (set_bit_addressable_sfr M code_memory s b v). |
---|
634 | #M #code_memory #s #b #v whd in match (set_bit_addressable_sfr ?????); |
---|
635 | cases (sfr_of_Byte ?) |
---|
636 | [1: |
---|
637 | normalize nodelta cases not_implemented |
---|
638 | |2: |
---|
639 | * * normalize nodelta % |
---|
640 | ] |
---|
641 | qed. |
---|
642 | |
---|
643 | lemma program_counter_set_bit_addressable_sfr: |
---|
644 | ∀M: Type[0]. ∀code_memory: M. ∀s: PreStatus M code_memory. ∀b: Byte. ∀v: Byte. |
---|
645 | program_counter … code_memory s = program_counter … code_memory (set_bit_addressable_sfr M code_memory s b v). |
---|
646 | #M #code_memory #s #b #v whd in match (set_bit_addressable_sfr ?????); |
---|
647 | cases (sfr_of_Byte ?) |
---|
648 | [1: |
---|
649 | normalize nodelta cases not_implemented |
---|
650 | |2: |
---|
651 | * * % |
---|
652 | ] |
---|
653 | qed. |
---|
654 | |
---|
655 | definition bit_address_of_register ≝ |
---|
656 | λM: Type[0]. |
---|
657 | λcode_memory:M. |
---|
658 | λs: PreStatus M code_memory. |
---|
659 | λr: BitVector 3. |
---|
660 | let b ≝ get_index_v … r O ? in |
---|
661 | let c ≝ get_index_v … r 1 ? in |
---|
662 | let d ≝ get_index_v … r 2 ? in |
---|
663 | let 〈 un, ln 〉 ≝ vsplit ? 4 4 (get_8051_sfr ?? s SFR_PSW) in |
---|
664 | let 〈 r1, r0 〉 ≝ 〈 get_index_v … 4 un 2 ?, get_index_v … 4 un 3 ? 〉 in |
---|
665 | let offset ≝ |
---|
666 | if ¬r1 ∧ ¬r0 then |
---|
667 | O |
---|
668 | else if ¬r1 ∧ r0 then |
---|
669 | 8 |
---|
670 | else if r1 ∧ r0 then |
---|
671 | 24 |
---|
672 | else |
---|
673 | 16 |
---|
674 | in |
---|
675 | bitvector_of_nat 7 (offset + (nat_of_bitvector ? [[ false ; b ; c ; d ]])). |
---|
676 | [1,2,3,4,5: |
---|
677 | normalize |
---|
678 | repeat (@ le_S_S) |
---|
679 | @ le_O_n; |
---|
680 | ] |
---|
681 | qed. |
---|
682 | |
---|
683 | definition get_register ≝ |
---|
684 | λM: Type[0]. |
---|
685 | λcode_memory:M. |
---|
686 | λs: PreStatus M code_memory. |
---|
687 | λr: BitVector 3. |
---|
688 | let address ≝ bit_address_of_register … s r in |
---|
689 | lookup ?? address (low_internal_ram … s) (zero 8). |
---|
690 | |
---|
691 | definition set_register ≝ |
---|
692 | λM: Type[0]. |
---|
693 | λcode_memory:M. |
---|
694 | λs: PreStatus M code_memory. |
---|
695 | λr: BitVector 3. |
---|
696 | λv: Byte. |
---|
697 | let address ≝ bit_address_of_register … s r in |
---|
698 | let old_low_internal_ram ≝ low_internal_ram ?? s in |
---|
699 | let new_low_internal_ram ≝ insert … address v old_low_internal_ram in |
---|
700 | set_low_internal_ram … s new_low_internal_ram. |
---|
701 | |
---|
702 | definition read_from_internal_ram ≝ |
---|
703 | λM: Type[0]. |
---|
704 | λcode_memory:M. |
---|
705 | λs: PreStatus M code_memory. |
---|
706 | λaddr: Byte. |
---|
707 | let 〈bit_one, seven_bits〉 ≝ vsplit bool 1 7 addr in |
---|
708 | let memory ≝ |
---|
709 | if head' … bit_one then |
---|
710 | (low_internal_ram ?? s) |
---|
711 | else |
---|
712 | (high_internal_ram ?? s) |
---|
713 | in |
---|
714 | lookup … seven_bits memory (zero 8). |
---|
715 | |
---|
716 | definition read_at_stack_pointer ≝ |
---|
717 | λM: Type[0]. |
---|
718 | λcode_memory:M. |
---|
719 | λs: PreStatus M code_memory. |
---|
720 | read_from_internal_ram M code_memory s (get_8051_sfr ?? s SFR_SP). |
---|
721 | |
---|
722 | definition write_at_stack_pointer ≝ |
---|
723 | λM: Type[0]. |
---|
724 | λcode_memory:M. |
---|
725 | λs: PreStatus M code_memory. |
---|
726 | λv: Byte. |
---|
727 | let 〈bit_one, seven_bits〉 ≝ vsplit bool 1 7 (get_8051_sfr ?? s SFR_SP) in |
---|
728 | if head' … 0 bit_one then |
---|
729 | let memory ≝ insert … seven_bits v (high_internal_ram ?? s) in |
---|
730 | set_high_internal_ram ?? s memory |
---|
731 | else |
---|
732 | let memory ≝ insert … seven_bits v (low_internal_ram ?? s) in |
---|
733 | set_low_internal_ram ?? s memory. |
---|
734 | |
---|
735 | definition set_arg_16': ∀M: Type[0]. ∀code_memory:M. ∀s:PreStatus M code_memory. Word → [[ dptr ]] → Σs':PreStatus M code_memory. clock ?? s = clock ?? s' ≝ |
---|
736 | λM,code_memory,s,v,a. |
---|
737 | match a return λx. bool_to_Prop (is_in ? [[ dptr ]] x) → Σs'. clock M ? s = clock M ? s' with |
---|
738 | [ DPTR ⇒ λ_:True. |
---|
739 | let 〈 bu, bl 〉 ≝ vsplit … 8 8 v in |
---|
740 | let status ≝ set_8051_sfr … s SFR_DPH bu in |
---|
741 | let status ≝ set_8051_sfr … status SFR_DPL bl in |
---|
742 | status |
---|
743 | | _ ⇒ λK. |
---|
744 | match K in False with |
---|
745 | [ |
---|
746 | ] |
---|
747 | ] (subaddressing_modein … a). |
---|
748 | // |
---|
749 | qed. |
---|
750 | |
---|
751 | definition set_arg_16: ∀M: Type[0]. ∀code_memory:M. ∀s:PreStatus M code_memory. Word → [[ dptr ]] → PreStatus M code_memory ≝ |
---|
752 | set_arg_16'. |
---|
753 | |
---|
754 | lemma set_arg_16_ok: ∀M,cm,s,v,x. clock M cm s = clock M cm (set_arg_16 M cm s v x). |
---|
755 | #M #cm #s #x #v whd in match set_arg_16; normalize nodelta @pi2 |
---|
756 | qed. |
---|
757 | |
---|
758 | |
---|
759 | definition get_arg_16: ∀M: Type[0]. ∀code_memory:M. PreStatus M code_memory → [[ data16 ]] → Word ≝ |
---|
760 | λm, cm, s, a. |
---|
761 | match a return λx. bool_to_Prop (is_in ? [[ data16 ]] x) → ? with |
---|
762 | [ DATA16 d ⇒ λ_:True. d |
---|
763 | | _ ⇒ λK. |
---|
764 | match K in False with |
---|
765 | [ |
---|
766 | ] |
---|
767 | ] (subaddressing_modein … a). |
---|
768 | |
---|
769 | definition get_arg_8: ∀M: Type[0]. ∀code_memory:M. PreStatus M code_memory → bool → [[ direct ; indirect ; registr ; |
---|
770 | acc_a ; acc_b ; data ; acc_dptr ; |
---|
771 | acc_pc ; ext_indirect ; |
---|
772 | ext_indirect_dptr ]] → Byte ≝ |
---|
773 | λm, cm, s, l, a. |
---|
774 | match a return λx. bool_to_Prop (is_in ? [[ direct ; indirect ; registr ; |
---|
775 | acc_a ; acc_b ; data ; acc_dptr ; |
---|
776 | acc_pc ; ext_indirect ; |
---|
777 | ext_indirect_dptr ]] x) → ? with |
---|
778 | [ ACC_A ⇒ λacc_a: True. get_8051_sfr ?? s SFR_ACC_A |
---|
779 | | ACC_B ⇒ λacc_b: True. get_8051_sfr ?? s SFR_ACC_B |
---|
780 | | DATA d ⇒ λdata: True. d |
---|
781 | | REGISTER r ⇒ λregister: True. get_register ?? s r |
---|
782 | | EXT_INDIRECT_DPTR ⇒ |
---|
783 | λext_indirect_dptr: True. |
---|
784 | let address ≝ (get_8051_sfr ?? s SFR_DPH) @@ (get_8051_sfr ?? s SFR_DPL) in |
---|
785 | lookup ? 16 address (external_ram ?? s) (zero 8) |
---|
786 | | EXT_INDIRECT e ⇒ |
---|
787 | λext_indirect: True. |
---|
788 | let address ≝ get_register ?? s [[ false; false; e ]] in |
---|
789 | let padded_address ≝ pad 8 8 address in |
---|
790 | lookup ? 16 padded_address (external_ram ?? s) (zero 8) |
---|
791 | | ACC_DPTR ⇒ |
---|
792 | λacc_dptr: True. |
---|
793 | let dptr ≝ (get_8051_sfr ?? s SFR_DPH) @@ (get_8051_sfr ?? s SFR_DPL) in |
---|
794 | let padded_acc ≝ pad 8 8 (get_8051_sfr ?? s SFR_ACC_A) in |
---|
795 | let 〈carry, address〉 ≝ half_add 16 dptr padded_acc in |
---|
796 | lookup ? 16 address (external_ram ?? s) (zero 8) |
---|
797 | | ACC_PC ⇒ |
---|
798 | λacc_pc: True. |
---|
799 | let padded_acc ≝ pad 8 8 (get_8051_sfr ?? s SFR_ACC_A) in |
---|
800 | let 〈 carry, address 〉 ≝ half_add 16 (program_counter ?? s) padded_acc in |
---|
801 | lookup ? 16 address (external_ram ?? s) (zero 8) |
---|
802 | | DIRECT d ⇒ |
---|
803 | λdirect: True. |
---|
804 | let 〈hd, seven_bits〉 ≝ vsplit bool 1 7 d in |
---|
805 | match head' … hd with |
---|
806 | [ true ⇒ get_bit_addressable_sfr m cm s (true:::seven_bits) l |
---|
807 | | false ⇒ lookup ? 7 seven_bits (low_internal_ram … s) (zero …) |
---|
808 | ] |
---|
809 | | INDIRECT i ⇒ |
---|
810 | λindirect: True. |
---|
811 | let 〈hd, seven_bits〉 ≝ vsplit bool 1 7 (get_register … s [[false;false;i]]) in |
---|
812 | match head' … hd with |
---|
813 | [ true ⇒ lookup ? 7 seven_bits (high_internal_ram … s) (zero …) |
---|
814 | | false ⇒ lookup ? 7 seven_bits (low_internal_ram … s) (zero …) |
---|
815 | ] |
---|
816 | | _ ⇒ λother. |
---|
817 | match other in False with [ ] |
---|
818 | ] (subaddressing_modein … a). |
---|
819 | |
---|
820 | definition set_arg_8: ∀M: Type[0]. ∀code_memory:M. ∀s:PreStatus M code_memory. ∀addr: [[ direct ; indirect ; registr ; |
---|
821 | acc_a ; acc_b ; ext_indirect ; |
---|
822 | ext_indirect_dptr ]]. Byte → PreStatus M code_memory ≝ |
---|
823 | λm, cm, s, a, v. |
---|
824 | match a return λx. bool_to_Prop (is_in ? [[ direct ; indirect ; registr ; |
---|
825 | acc_a ; acc_b ; ext_indirect ; |
---|
826 | ext_indirect_dptr ]] x) → |
---|
827 | PreStatus m cm |
---|
828 | with |
---|
829 | [ DIRECT d ⇒ |
---|
830 | λdirect: True. |
---|
831 | let 〈 bit_one, seven_bits 〉 ≝ vsplit ? 1 7 d in |
---|
832 | match head' … bit_one with |
---|
833 | [ true ⇒ set_bit_addressable_sfr ?? s (true:::seven_bits) v |
---|
834 | | false ⇒ |
---|
835 | let memory ≝ insert ? 7 seven_bits v (low_internal_ram ?? s) in |
---|
836 | set_low_internal_ram ?? s memory |
---|
837 | ] |
---|
838 | | INDIRECT i ⇒ |
---|
839 | λindirect: True. |
---|
840 | let register ≝ get_register ?? s [[ false; false; i ]] in |
---|
841 | let 〈bit_one, seven_bits〉 ≝ vsplit ? 1 7 register in |
---|
842 | match head' … bit_one with |
---|
843 | [ false ⇒ |
---|
844 | let memory ≝ insert … seven_bits v (low_internal_ram ?? s) in |
---|
845 | set_low_internal_ram ?? s memory |
---|
846 | | true ⇒ |
---|
847 | let memory ≝ insert … seven_bits v (high_internal_ram ?? s) in |
---|
848 | set_high_internal_ram ?? s memory |
---|
849 | ] |
---|
850 | | REGISTER r ⇒ λregister: True. set_register ?? s r v |
---|
851 | | ACC_A ⇒ λacc_a: True. set_8051_sfr ?? s SFR_ACC_A v |
---|
852 | | ACC_B ⇒ λacc_b: True. set_8051_sfr ?? s SFR_ACC_B v |
---|
853 | | EXT_INDIRECT e ⇒ |
---|
854 | λext_indirect: True. |
---|
855 | let address ≝ get_register ?? s [[ false; false; e ]] in |
---|
856 | let padded_address ≝ pad 8 8 address in |
---|
857 | let memory ≝ insert ? 16 padded_address v (external_ram ?? s) in |
---|
858 | set_external_ram ?? s memory |
---|
859 | | EXT_INDIRECT_DPTR ⇒ |
---|
860 | λext_indirect_dptr: True. |
---|
861 | let address ≝ (get_8051_sfr ?? s SFR_DPH) @@ (get_8051_sfr ?? s SFR_DPL) in |
---|
862 | let memory ≝ insert ? 16 address v (external_ram ?? s) in |
---|
863 | set_external_ram ?? s memory |
---|
864 | | _ ⇒ |
---|
865 | λother: False. |
---|
866 | match other in False with [ ] |
---|
867 | ] (subaddressing_modein … a). |
---|
868 | |
---|
869 | lemma clock_set_arg_8: ∀M,cm,s,x,v. clock M cm s = clock … (set_arg_8 M cm s x v). |
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870 | cases daemon |
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871 | qed. |
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872 | |
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873 | lemma program_counter_set_arg_8: ∀M,cm,s,x,v. program_counter M cm s = program_counter … (set_arg_8 M cm s x v). |
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874 | cases daemon |
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875 | qed. |
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876 | |
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877 | lemma p1_latch_set_arg_8: ∀M.∀cm.∀s.∀x: [[indirect; registr; acc_a; acc_b; ext_indirect; ext_indirect_dptr]]. ∀v. p1_latch M cm s = p1_latch … (set_arg_8 M cm s x v). |
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878 | [2: /2 by subaddressing_modein, orb_Prop_r/ ] |
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879 | #M #cm #s #x #v whd in match set_arg_8; normalize nodelta |
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880 | cases daemon |
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881 | qed. |
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882 | |
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883 | lemma p3_latch_set_arg_8: ∀M.∀cm.∀s.∀x: [[indirect; registr; acc_a; acc_b; ext_indirect; ext_indirect_dptr]]. ∀v. p3_latch M cm s = p3_latch … (set_arg_8 M cm s x v). |
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884 | [2: /2 by subaddressing_modein, orb_Prop_r/ ] |
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885 | #M #cm #s #x #v whd in match set_arg_8; normalize nodelta |
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886 | cases daemon |
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887 | qed. |
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888 | |
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889 | lemma special_function_registers_8052_set_arg_8: ∀M.∀cm.∀s.∀x: [[indirect; registr; acc_a; acc_b; ext_indirect; ext_indirect_dptr]]. ∀v. special_function_registers_8052 M cm s = special_function_registers_8052 … (set_arg_8 M cm s x v). |
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890 | [2: /2 by subaddressing_modein, orb_Prop_r/ ] |
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891 | #M #cm #s #x #v whd in match set_arg_8; normalize nodelta |
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892 | cases daemon |
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893 | qed. |
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894 | |
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895 | theorem modulus_less_than: |
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896 | ∀m,n: nat. (m mod (S n)) < S n. |
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897 | #n #m |
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898 | normalize |
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899 | @ le_S_S |
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900 | lapply (le_n n) |
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901 | generalize in ⊢ (?%? → ?(??%?)?); |
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902 | elim n in ⊢ (∀_:?. ??% → ?(?%??)?); |
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903 | [ normalize |
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904 | #n |
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905 | @ (less_than_or_equal_b_elim n m) |
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906 | normalize |
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907 | [ // |
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908 | | #H #K |
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909 | @(le_inv_ind ?? K …) |
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910 | [ # H1 |
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911 | < H1 |
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912 | // |
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913 | | #x #H1 #H2 #H3 |
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914 | destruct |
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915 | ] |
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916 | ] |
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917 | | normalize |
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918 | # y # H1 # n # H2 |
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919 | @ (less_than_or_equal_b_elim n m) |
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920 | normalize |
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921 | [ // |
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922 | | # K |
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923 | @ H1 |
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924 | cut (n ≤ S y → n - S m ≤ y) |
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925 | /2 by/ |
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926 | cases n |
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927 | normalize |
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928 | // |
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929 | # x # K1 |
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930 | lapply (le_S_S_to_le … K1) |
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931 | generalize in match m; |
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932 | elim x |
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933 | normalize |
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934 | // |
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935 | # w1 # H # m |
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936 | cases m |
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937 | normalize |
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938 | // |
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939 | # q # K2 |
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940 | @H |
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941 | /3/ |
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942 | ] |
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943 | ] |
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944 | qed. |
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945 | |
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946 | definition get_arg_1: ∀M: Type[0]. ∀code_memory:M. PreStatus M code_memory → [[ bit_addr ; n_bit_addr ; carry ]] → |
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947 | bool → bool ≝ |
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948 | λm, cm, s, a, l. |
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949 | match a return λx. bool_to_Prop (is_in ? [[ bit_addr ; |
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950 | n_bit_addr ; |
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951 | carry ]] x) → ? with |
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952 | [ BIT_ADDR b ⇒ |
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953 | λbit_addr: True. |
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954 | let 〈bit_1, seven_bits〉 ≝ vsplit … 1 7 b in |
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955 | match head' … bit_1 with |
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956 | [ true ⇒ |
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957 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
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958 | let trans ≝ true:::four_bits @@ [[false; false; false]] in |
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959 | let sfr ≝ get_bit_addressable_sfr ?? s trans l in |
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960 | get_index_v … sfr (nat_of_bitvector … three_bits) ? |
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961 | | false ⇒ |
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962 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
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963 | let address' ≝ [[true; false; false]]@@four_bits in |
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964 | let t ≝ lookup … 7 address' (low_internal_ram ?? s) (zero 8) in |
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965 | get_index_v … t (nat_of_bitvector … three_bits) ? |
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966 | ] |
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967 | | N_BIT_ADDR n ⇒ |
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968 | λn_bit_addr: True. |
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969 | let 〈bit_1, seven_bits〉 ≝ vsplit … 1 7 n in |
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970 | match head' … bit_1 with |
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971 | [ true ⇒ |
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972 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
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973 | let trans ≝ true:::four_bits @@ [[false; false; false]] in |
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974 | let sfr ≝ get_bit_addressable_sfr ?? s trans l in |
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975 | ¬(get_index_v ?? sfr (nat_of_bitvector … three_bits) ?) |
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976 | | false ⇒ |
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977 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
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978 | let address' ≝ [[true; false; false]]@@four_bits in |
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979 | let t ≝ lookup … 7 address' (low_internal_ram ?? s) (zero 8) in |
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980 | ¬(get_index_v … t (nat_of_bitvector … three_bits) ?) |
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981 | ] |
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982 | | CARRY ⇒ λcarry: True. get_cy_flag ?? s |
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983 | | _ ⇒ λother. |
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984 | match other in False with [ ] |
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985 | ] (subaddressing_modein … a). |
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986 | // |
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987 | qed. |
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988 | |
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989 | definition set_arg_1: ∀M: Type[0]. ∀code_memory:M. ∀s:PreStatus M code_memory. [[bit_addr; carry]] → Bit → PreStatus M code_memory ≝ |
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990 | λm: Type[0]. |
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991 | λcm. |
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992 | λs: PreStatus m cm. |
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993 | λa: [[bit_addr; carry]]. |
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994 | λv: Bit. |
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995 | match a return λx. bool_to_Prop (is_in ? [[bit_addr ; carry]] x) → ? with |
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996 | [ BIT_ADDR b ⇒ λbit_addr: True. |
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997 | let 〈bit_1, seven_bits〉 ≝ vsplit bool 1 7 b in |
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998 | match head' … bit_1 with |
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999 | [ true ⇒ |
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1000 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
---|
1001 | let trans ≝ true:::four_bits @@ [[false; false; false]] in |
---|
1002 | let sfr ≝ get_bit_addressable_sfr … s trans true in |
---|
1003 | let new_sfr ≝ set_index … sfr (nat_of_bitvector … three_bits) v ? in |
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1004 | set_bit_addressable_sfr … s new_sfr trans |
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1005 | | false ⇒ |
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1006 | let 〈four_bits, three_bits〉 ≝ vsplit bool 4 3 seven_bits in |
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1007 | let address' ≝ [[true; false; false]]@@four_bits in |
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1008 | let t ≝ lookup ? 7 address' (low_internal_ram ?? s) (zero 8) in |
---|
1009 | let n_bit ≝ set_index … t (nat_of_bitvector … three_bits) v ? in |
---|
1010 | let memory ≝ insert ? 7 address' n_bit (low_internal_ram ?? s) in |
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1011 | set_low_internal_ram … s memory |
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1012 | ] |
---|
1013 | | CARRY ⇒ |
---|
1014 | λcarry: True. |
---|
1015 | let 〈ignore, seven_bits〉 ≝ vsplit bool 1 7 (get_8051_sfr … s SFR_PSW) in |
---|
1016 | let new_psw ≝ v:::seven_bits in |
---|
1017 | set_8051_sfr ?? s SFR_PSW new_psw |
---|
1018 | | _ ⇒ |
---|
1019 | λother: False. |
---|
1020 | match other in False with |
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1021 | [ ] |
---|
1022 | ] (subaddressing_modein … a). |
---|
1023 | // |
---|
1024 | qed. |
---|
1025 | |
---|
1026 | lemma set_arg_1_ok: ∀M,cm,s,x,v. clock M cm s = clock … (set_arg_1 M cm s x v). |
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1027 | cases daemon |
---|
1028 | qed. |
---|
1029 | |
---|
1030 | definition fetch_pseudo_instruction: |
---|
1031 | ∀code_mem:list labelled_instruction. ∀pc:Word. |
---|
1032 | nat_of_bitvector … pc < |code_mem| → (pseudo_instruction × Word) ≝ |
---|
1033 | λcode_mem. |
---|
1034 | λpc: Word. |
---|
1035 | λpc_ok. |
---|
1036 | let 〈lbl, instr〉 ≝ nth_safe … (nat_of_bitvector ? pc) … code_mem pc_ok in |
---|
1037 | let new_pc ≝ add ? pc (bitvector_of_nat … 1) in |
---|
1038 | 〈instr, new_pc〉. |
---|
1039 | |
---|
1040 | lemma snd_fetch_pseudo_instruction: |
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1041 | ∀l,ppc,ppc_ok. \snd (fetch_pseudo_instruction l ppc ppc_ok) = add ? ppc (bitvector_of_nat ? 1). |
---|
1042 | #l #ppc #ppc_ok whd in ⊢ (??(???%)?); @pair_elim |
---|
1043 | #lft #rgt #_ % |
---|
1044 | qed. |
---|
1045 | |
---|
1046 | lemma fetch_pseudo_instruction_vsplit: |
---|
1047 | ∀instr_list,ppc,ppc_ok. |
---|
1048 | ∃pre,suff,lbl. |
---|
1049 | (pre @ [〈lbl,\fst (fetch_pseudo_instruction instr_list ppc ppc_ok)〉]) @ suff = instr_list. |
---|
1050 | #instr_list #ppc #ppc_ok whd in match (fetch_pseudo_instruction ???); |
---|
1051 | cases (nth_safe_append … instr_list … ppc_ok) #pre * #suff #EQ %{pre} %{suff} |
---|
1052 | lapply EQ -EQ cases (nth_safe labelled_instruction ???) #lbl0 #instr normalize nodelta |
---|
1053 | #EQ %{lbl0} @EQ |
---|
1054 | qed. |
---|
1055 | |
---|
1056 | lemma fetch_pseudo_instruction_append: |
---|
1057 | ∀l1,l2. |l1@l2| ≤ 2^16 → ∀ppc,ppc_ok,ppc_ok'. |
---|
1058 | let code_newppc ≝ fetch_pseudo_instruction l2 ppc ppc_ok in |
---|
1059 | fetch_pseudo_instruction (l1@l2) (add … (bitvector_of_nat … (|l1|)) (ppc)) ppc_ok' = |
---|
1060 | 〈\fst code_newppc, add … (bitvector_of_nat … (|l1|)) (\snd code_newppc)〉. |
---|
1061 | #l1 #l2 #l1l2_ok #ppc #ppc_ok whd in match fetch_pseudo_instruction; normalize nodelta |
---|
1062 | cut (|l1| + nat_of_bitvector … ppc < 2^16) |
---|
1063 | [ @(transitive_le … l1l2_ok) >length_append @monotonic_lt_plus_r assumption ] |
---|
1064 | -l1l2_ok #l1ppc_ok >nat_of_bitvector_add |
---|
1065 | >nat_of_bitvector_bitvector_of_nat_inverse try assumption |
---|
1066 | [2,3: @(transitive_le … l1ppc_ok) @le_S_S // ] |
---|
1067 | #ppc_ok' <nth_safe_prepend try assumption cases (nth_safe labelled_instruction ???) |
---|
1068 | #lbl #instr normalize nodelta >add_associative % |
---|
1069 | qed. |
---|
1070 | |
---|
1071 | definition is_well_labelled_p ≝ |
---|
1072 | λinstr_list. |
---|
1073 | ∀id: Identifier. |
---|
1074 | ∀ppc. |
---|
1075 | ∀ppc_ok. |
---|
1076 | ∀i. |
---|
1077 | \fst (fetch_pseudo_instruction instr_list ppc ppc_ok) = i → |
---|
1078 | (instruction_has_label id i → |
---|
1079 | occurs_exactly_once ASMTag pseudo_instruction id instr_list) ∧ |
---|
1080 | (is_jump_to i id → |
---|
1081 | occurs_exactly_once ASMTag pseudo_instruction id instr_list). |
---|
1082 | |
---|
1083 | definition construct_datalabels: preamble → ? ≝ |
---|
1084 | λthe_preamble: preamble. |
---|
1085 | \fst (foldl ((identifier_map ASMTag Word) × Word) ? ( |
---|
1086 | λt. λpreamble. |
---|
1087 | let 〈datalabels, addr〉 ≝ t in |
---|
1088 | let 〈name, size〉 ≝ preamble in |
---|
1089 | let 〈carry, sum〉 ≝ half_add … addr size in |
---|
1090 | 〈add ? ? datalabels name addr, sum〉) |
---|
1091 | 〈empty_map …, zero 16〉 (\snd the_preamble)). |
---|