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Rev | Author | Line No. | Line |
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31 | halyavin | 1 | |
2 | ; Copyright (c) 1999-2006, Tomasz Grysztar. |
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109 | heavyiron | 3 | ; All rights reserved. |
31 | halyavin | 4 | |
5 | |||
6 | push ebp |
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157 | heavyiron | 7 | call get_fp_value |
8 | jnc fp_expression |
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9 | mov [current_offset],esp |
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10 | expression_loop: |
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31 | halyavin | 11 | push edi |
157 | heavyiron | 12 | mov edi,single_operand_operators |
13 | call get_operator |
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14 | pop edi |
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15 | or al,al |
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16 | jz expression_element |
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17 | push eax |
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18 | jmp expression_loop |
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19 | expression_element: |
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109 | heavyiron | 20 | mov al,[esi] |
157 | heavyiron | 21 | cmp al,1Ah |
22 | je expression_number |
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23 | cmp al,22h |
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24 | je expression_number |
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25 | cmp al,'(' |
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26 | je expression_number |
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27 | mov al,'!' |
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28 | stos byte [edi] |
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29 | jmp expression_operator |
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30 | expression_number: |
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31 | halyavin | 31 | call convert_number |
157 | heavyiron | 32 | expression_operator: |
31 | halyavin | 33 | push edi |
157 | heavyiron | 34 | mov edi,operators |
35 | call get_operator |
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36 | pop edi |
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37 | or al,al |
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38 | jz expression_end |
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39 | operators_loop: |
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31 | halyavin | 40 | cmp esp,[current_offset] |
157 | heavyiron | 41 | je push_operator |
42 | mov bl,al |
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43 | and bl,0F0h |
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44 | mov bh,byte [esp] |
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45 | and bh,0F0h |
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46 | cmp bl,bh |
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47 | ja push_operator |
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48 | pop ebx |
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49 | mov byte [edi],bl |
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50 | inc edi |
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51 | jmp operators_loop |
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52 | push_operator: |
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31 | halyavin | 53 | push eax |
157 | heavyiron | 54 | jmp expression_loop |
55 | expression_end: |
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31 | halyavin | 56 | cmp esp,[current_offset] |
157 | heavyiron | 57 | je expression_converted |
58 | pop eax |
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59 | stos byte [edi] |
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60 | jmp expression_end |
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61 | expression_converted: |
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31 | halyavin | 62 | pop ebp |
157 | heavyiron | 63 | ret |
64 | fp_expression: |
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31 | halyavin | 65 | mov al,'.' |
157 | heavyiron | 66 | stos byte [edi] |
67 | mov eax,[fp_value] |
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68 | stos dword [edi] |
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69 | mov eax,[fp_value+4] |
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70 | stos dword [edi] |
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71 | mov eax,[fp_value+8] |
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72 | stos dword [edi] |
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73 | pop ebp |
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74 | ret |
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75 | |||
31 | halyavin | 76 | |
77 | lea eax,[edi-10h] |
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157 | heavyiron | 78 | cmp eax,[labels_list] |
79 | jae out_of_memory |
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80 | cmp byte [esi],'(' |
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81 | je expression_value |
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82 | inc edi |
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83 | call get_number |
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84 | jc symbol_value |
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85 | or ebp,ebp |
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86 | jz valid_number |
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87 | mov byte [edi-1],0Fh |
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88 | ret |
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89 | valid_number: |
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31 | halyavin | 90 | cmp dword [edi+4],0 |
157 | heavyiron | 91 | jne qword_number |
92 | cmp word [edi+2],0 |
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93 | jne dword_number |
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94 | cmp byte [edi+1],0 |
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95 | jne word_number |
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96 | byte_number: |
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31 | halyavin | 97 | mov byte [edi-1],1 |
157 | heavyiron | 98 | inc edi |
99 | ret |
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100 | qword_number: |
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31 | halyavin | 101 | mov byte [edi-1],8 |
157 | heavyiron | 102 | add edi,8 |
103 | ret |
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104 | dword_number: |
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31 | halyavin | 105 | mov byte [edi-1],4 |
157 | heavyiron | 106 | scas dword [edi] |
107 | ret |
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108 | word_number: |
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31 | halyavin | 109 | mov byte [edi-1],2 |
157 | heavyiron | 110 | scas word [edi] |
111 | ret |
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112 | expression_value: |
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31 | halyavin | 113 | mov eax,esp |
157 | heavyiron | 114 | sub eax,100h |
115 | jc stack_overflow |
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116 | cmp eax,[stack_limit] |
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117 | jb stack_overflow |
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118 | inc esi |
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119 | push [current_offset] |
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120 | call convert_expression |
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121 | pop [current_offset] |
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122 | lods byte [esi] |
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123 | cmp al,')' |
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124 | jne invalid_expression |
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125 | ret |
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126 | symbol_value: |
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31 | halyavin | 127 | push edi |
157 | heavyiron | 128 | mov edi,address_registers |
129 | call get_operator |
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130 | or al,al |
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131 | jnz register_value |
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132 | mov edi,directive_operators |
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133 | call get_operator |
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134 | pop edi |
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135 | or al,al |
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136 | jnz broken_value |
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137 | lods byte [esi] |
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138 | cmp al,1Ah |
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139 | jne invalid_value |
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140 | lods byte [esi] |
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141 | movzx ecx,al |
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142 | call get_label_id |
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143 | store_label_value: |
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31 | halyavin | 144 | mov byte [edi-1],11h |
157 | heavyiron | 145 | stos dword [edi] |
146 | ret |
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147 | broken_value: |
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31 | halyavin | 148 | mov eax,0Fh |
157 | heavyiron | 149 | jmp store_label_value |
150 | register_value: |
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31 | halyavin | 151 | pop edi |
157 | heavyiron | 152 | mov byte [edi-1],10h |
153 | stos byte [edi] |
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154 | ret |
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155 | |||
31 | halyavin | 156 | |
157 | xor ebp,ebp |
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157 | heavyiron | 158 | lods byte [esi] |
159 | cmp al,22h |
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160 | je get_text_number |
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161 | cmp al,1Ah |
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162 | jne not_number |
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163 | lods byte [esi] |
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164 | movzx ecx,al |
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165 | mov [number_start],esi |
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166 | mov al,[esi] |
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167 | cmp al,'$' |
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168 | je number_begin |
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169 | sub al,30h |
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170 | cmp al,9 |
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171 | ja invalid_number |
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172 | number_begin: |
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31 | halyavin | 173 | mov ebx,esi |
157 | heavyiron | 174 | add esi,ecx |
175 | push esi |
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176 | dec esi |
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177 | mov dword [edi],0 |
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178 | mov dword [edi+4],0 |
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179 | cmp byte [ebx],'$' |
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180 | je pascal_hex_number |
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181 | cmp word [ebx],'0x' |
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182 | je get_hex_number |
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183 | mov al,[esi] |
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184 | dec esi |
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185 | cmp al,'h' |
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186 | je get_hex_number |
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187 | cmp al,'b' |
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188 | je get_bin_number |
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189 | cmp al,'d' |
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190 | je get_dec_number |
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191 | cmp al,'o' |
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192 | je get_oct_number |
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193 | cmp al,'H' |
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194 | je get_hex_number |
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195 | cmp al,'B' |
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196 | je get_bin_number |
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197 | cmp al,'D' |
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198 | je get_dec_number |
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199 | cmp al,'O' |
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200 | je get_oct_number |
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201 | inc esi |
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202 | get_dec_number: |
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31 | halyavin | 203 | mov ebx,esi |
157 | heavyiron | 204 | mov esi,[number_start] |
205 | get_dec_digit: |
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31 | halyavin | 206 | cmp esi,ebx |
157 | heavyiron | 207 | ja number_ok |
208 | xor edx,edx |
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209 | mov eax,[edi] |
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210 | shld edx,eax,2 |
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211 | shl eax,2 |
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212 | add eax,[edi] |
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213 | adc edx,0 |
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214 | add eax,eax |
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215 | adc edx,edx |
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216 | mov [edi],eax |
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217 | mov eax,[edi+4] |
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218 | add eax,eax |
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219 | jc dec_out_of_range |
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220 | add eax,eax |
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221 | jc dec_out_of_range |
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222 | add eax,[edi+4] |
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223 | jc dec_out_of_range |
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224 | add eax,eax |
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225 | jc dec_out_of_range |
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226 | add eax,edx |
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227 | jc dec_out_of_range |
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228 | mov [edi+4],eax |
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229 | movzx eax,byte [esi] |
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230 | sub al,30h |
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231 | cmp al,9 |
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232 | ja bad_number |
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233 | add [edi],eax |
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234 | adc dword [edi+4],0 |
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235 | jc dec_out_of_range |
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236 | inc esi |
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237 | jmp get_dec_digit |
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238 | dec_out_of_range: |
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31 | halyavin | 239 | or ebp,-1 |
157 | heavyiron | 240 | inc esi |
241 | jmp get_dec_digit |
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242 | bad_number: |
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31 | halyavin | 243 | pop eax |
157 | heavyiron | 244 | invalid_number: |
31 | halyavin | 245 | mov esi,[number_start] |
157 | heavyiron | 246 | dec esi |
247 | not_number: |
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31 | halyavin | 248 | dec esi |
157 | heavyiron | 249 | stc |
250 | ret |
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251 | get_bin_number: |
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31 | halyavin | 252 | xor bl,bl |
157 | heavyiron | 253 | get_bin_digit: |
31 | halyavin | 254 | cmp esi,[number_start] |
157 | heavyiron | 255 | jb number_ok |
256 | movzx eax,byte [esi] |
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257 | sub al,30h |
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258 | cmp al,1 |
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259 | ja bad_number |
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260 | xor edx,edx |
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261 | mov cl,bl |
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262 | dec esi |
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263 | cmp bl,64 |
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264 | je bin_out_of_range |
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265 | inc bl |
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266 | cmp cl,32 |
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267 | jae bin_digit_high |
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268 | shl eax,cl |
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269 | or dword [edi],eax |
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270 | jmp get_bin_digit |
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271 | bin_digit_high: |
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31 | halyavin | 272 | sub cl,32 |
157 | heavyiron | 273 | shl eax,cl |
274 | or dword [edi+4],eax |
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275 | jmp get_bin_digit |
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276 | bin_out_of_range: |
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31 | halyavin | 277 | or al,al |
157 | heavyiron | 278 | jz get_bin_digit |
279 | or ebp,-1 |
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280 | jmp get_bin_digit |
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281 | pascal_hex_number: |
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31 | halyavin | 282 | cmp cl,1 |
157 | heavyiron | 283 | je bad_number |
284 | get_hex_number: |
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31 | halyavin | 285 | xor bl,bl |
157 | heavyiron | 286 | get_hex_digit: |
31 | halyavin | 287 | cmp esi,[number_start] |
157 | heavyiron | 288 | jb number_ok |
289 | movzx eax,byte [esi] |
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290 | cmp al,'x' |
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291 | je hex_number_ok |
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292 | cmp al,'$' |
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293 | je pascal_hex_ok |
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294 | sub al,30h |
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295 | cmp al,9 |
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296 | jbe hex_digit_ok |
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297 | sub al,7 |
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298 | cmp al,15 |
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299 | jbe hex_letter_digit_ok |
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300 | sub al,20h |
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301 | cmp al,15 |
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302 | ja bad_number |
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303 | hex_letter_digit_ok: |
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31 | halyavin | 304 | cmp al,10 |
157 | heavyiron | 305 | jb bad_number |
306 | hex_digit_ok: |
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31 | halyavin | 307 | xor edx,edx |
157 | heavyiron | 308 | mov cl,bl |
309 | dec esi |
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310 | cmp bl,64 |
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311 | je hex_out_of_range |
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312 | add bl,4 |
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313 | cmp cl,32 |
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314 | jae hex_digit_high |
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315 | shl eax,cl |
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316 | or dword [edi],eax |
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317 | jmp get_hex_digit |
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318 | hex_digit_high: |
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31 | halyavin | 319 | sub cl,32 |
157 | heavyiron | 320 | shl eax,cl |
321 | or dword [edi+4],eax |
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322 | jmp get_hex_digit |
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323 | hex_out_of_range: |
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31 | halyavin | 324 | or al,al |
157 | heavyiron | 325 | jz get_hex_digit |
326 | or ebp,-1 |
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327 | jmp get_hex_digit |
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328 | get_oct_number: |
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31 | halyavin | 329 | xor bl,bl |
157 | heavyiron | 330 | get_oct_digit: |
31 | halyavin | 331 | cmp esi,[number_start] |
157 | heavyiron | 332 | jb number_ok |
333 | movzx eax,byte [esi] |
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334 | sub al,30h |
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335 | cmp al,7 |
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336 | ja bad_number |
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337 | oct_digit_ok: |
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31 | halyavin | 338 | xor edx,edx |
157 | heavyiron | 339 | mov cl,bl |
340 | dec esi |
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341 | cmp bl,64 |
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342 | jae oct_out_of_range |
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343 | add bl,3 |
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344 | cmp cl,30 |
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345 | je oct_digit_wrap |
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346 | ja oct_digit_high |
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347 | shl eax,cl |
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348 | or dword [edi],eax |
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349 | jmp get_oct_digit |
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350 | oct_digit_wrap: |
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31 | halyavin | 351 | shl eax,cl |
157 | heavyiron | 352 | adc dword [edi+4],0 |
353 | or dword [edi],eax |
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354 | jmp get_oct_digit |
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355 | oct_digit_high: |
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31 | halyavin | 356 | sub cl,32 |
157 | heavyiron | 357 | shl eax,cl |
358 | or dword [edi+4],eax |
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359 | jmp get_oct_digit |
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360 | oct_out_of_range: |
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31 | halyavin | 361 | or al,al |
157 | heavyiron | 362 | jz get_oct_digit |
363 | or ebp,-1 |
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364 | jmp get_oct_digit |
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365 | hex_number_ok: |
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31 | halyavin | 366 | dec esi |
157 | heavyiron | 367 | pascal_hex_ok: |
31 | halyavin | 368 | cmp esi,[number_start] |
157 | heavyiron | 369 | jne bad_number |
370 | number_ok: |
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31 | halyavin | 371 | pop esi |
157 | heavyiron | 372 | number_done: |
31 | halyavin | 373 | clc |
157 | heavyiron | 374 | ret |
375 | get_text_number: |
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31 | halyavin | 376 | lods dword [esi] |
157 | heavyiron | 377 | mov edx,eax |
378 | xor bl,bl |
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379 | mov dword [edi],0 |
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380 | mov dword [edi+4],0 |
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381 | get_text_character: |
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31 | halyavin | 382 | sub edx,1 |
157 | heavyiron | 383 | jc number_done |
384 | movzx eax,byte [esi] |
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385 | inc esi |
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386 | mov cl,bl |
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387 | cmp bl,64 |
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388 | je text_out_of_range |
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389 | add bl,8 |
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390 | cmp cl,32 |
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391 | jae text_character_high |
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392 | shl eax,cl |
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393 | or dword [edi],eax |
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394 | jmp get_text_character |
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395 | text_character_high: |
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31 | halyavin | 396 | sub cl,32 |
157 | heavyiron | 397 | shl eax,cl |
398 | or dword [edi+4],eax |
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399 | jmp get_text_character |
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400 | text_out_of_range: |
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31 | halyavin | 401 | or ebp,-1 |
157 | heavyiron | 402 | jmp get_text_character |
403 | |||
31 | halyavin | 404 | |
405 | push edi esi |
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157 | heavyiron | 406 | lods byte [esi] |
407 | cmp al,1Ah |
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408 | je fp_value_start |
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409 | cmp al,'-' |
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410 | je fp_sign_ok |
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411 | cmp al,'+' |
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412 | jne not_fp_value |
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413 | fp_sign_ok: |
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31 | halyavin | 414 | lods byte [esi] |
157 | heavyiron | 415 | cmp al,1Ah |
416 | jne not_fp_value |
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417 | fp_value_start: |
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31 | halyavin | 418 | lods byte [esi] |
157 | heavyiron | 419 | movzx ecx,al |
420 | cmp cl,1 |
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421 | jbe not_fp_value |
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422 | lea edx,[esi+1] |
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423 | xor ah,ah |
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424 | check_fp_value: |
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31 | halyavin | 425 | lods byte [esi] |
157 | heavyiron | 426 | cmp al,'.' |
427 | je fp_character_dot |
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428 | cmp al,'E' |
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429 | je fp_character_exp |
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430 | cmp al,'e' |
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431 | je fp_character_exp |
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432 | cmp al,'F' |
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433 | je fp_last_character |
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434 | cmp al,'f' |
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435 | je fp_last_character |
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436 | digit_expected: |
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31 | halyavin | 437 | cmp al,'0' |
157 | heavyiron | 438 | jb not_fp_value |
439 | cmp al,'9' |
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440 | ja not_fp_value |
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441 | jmp fp_character_ok |
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442 | fp_character_dot: |
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31 | halyavin | 443 | cmp esi,edx |
157 | heavyiron | 444 | je not_fp_value |
445 | or ah,ah |
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446 | jnz not_fp_value |
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447 | or ah,1 |
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448 | lods byte [esi] |
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449 | loop digit_expected |
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450 | not_fp_value: |
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31 | halyavin | 451 | pop esi edi |
157 | heavyiron | 452 | stc |
453 | ret |
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454 | fp_last_character: |
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109 | heavyiron | 455 | cmp cl,1 |
157 | heavyiron | 456 | jne not_fp_value |
457 | or ah,4 |
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458 | jmp fp_character_ok |
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459 | fp_character_exp: |
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31 | halyavin | 460 | cmp esi,edx |
157 | heavyiron | 461 | je not_fp_value |
462 | cmp ah,1 |
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463 | ja not_fp_value |
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464 | or ah,2 |
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465 | cmp ecx,1 |
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466 | jne fp_character_ok |
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467 | cmp byte [esi],'+' |
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468 | je fp_exp_sign |
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469 | cmp byte [esi],'-' |
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470 | jne fp_character_ok |
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471 | fp_exp_sign: |
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31 | halyavin | 472 | inc esi |
157 | heavyiron | 473 | cmp byte [esi],1Ah |
474 | jne not_fp_value |
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475 | inc esi |
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476 | lods byte [esi] |
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477 | movzx ecx,al |
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478 | inc ecx |
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479 | fp_character_ok: |
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31 | halyavin | 480 | dec ecx |
157 | heavyiron | 481 | jnz check_fp_value |
482 | or ah,ah |
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483 | jz not_fp_value |
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484 | pop esi |
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485 | lods byte [esi] |
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486 | mov [fp_sign],0 |
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487 | cmp al,1Ah |
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488 | je fp_get |
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489 | inc esi |
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490 | cmp al,'+' |
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491 | je fp_get |
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492 | mov [fp_sign],1 |
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493 | fp_get: |
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31 | halyavin | 494 | lods byte [esi] |
157 | heavyiron | 495 | movzx ecx,al |
496 | xor edx,edx |
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497 | mov edi,fp_value |
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498 | mov [edi],edx |
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499 | mov [edi+4],edx |
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500 | mov [edi+12],edx |
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501 | call fp_optimize |
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502 | mov [fp_format],0 |
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503 | mov al,[esi] |
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504 | fp_before_dot: |
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31 | halyavin | 505 | lods byte [esi] |
157 | heavyiron | 506 | cmp al,'.' |
507 | je fp_dot |
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508 | cmp al,'E' |
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509 | je fp_exponent |
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510 | cmp al,'e' |
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511 | je fp_exponent |
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512 | cmp al,'F' |
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513 | je fp_done |
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514 | cmp al,'f' |
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515 | je fp_done |
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516 | sub al,30h |
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517 | mov edi,fp_value+16 |
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518 | xor edx,edx |
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519 | mov dword [edi+12],edx |
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520 | mov dword [edi],edx |
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521 | mov dword [edi+4],edx |
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522 | mov [edi+7],al |
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523 | mov dl,7 |
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524 | mov dword [edi+8],edx |
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525 | call fp_optimize |
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526 | mov edi,fp_value |
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527 | push ecx |
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528 | mov ecx,10 |
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529 | call fp_mul |
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530 | pop ecx |
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531 | mov ebx,fp_value+16 |
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532 | call fp_add |
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533 | loop fp_before_dot |
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534 | fp_dot: |
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31 | halyavin | 535 | mov edi,fp_value+16 |
157 | heavyiron | 536 | xor edx,edx |
537 | mov [edi],edx |
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538 | mov [edi+4],edx |
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539 | mov byte [edi+7],80h |
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540 | mov [edi+8],edx |
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541 | mov dword [edi+12],edx |
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542 | dec ecx |
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543 | jz fp_done |
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544 | fp_after_dot: |
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31 | halyavin | 545 | lods byte [esi] |
157 | heavyiron | 546 | cmp al,'E' |
547 | je fp_exponent |
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548 | cmp al,'e' |
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549 | je fp_exponent |
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550 | cmp al,'F' |
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551 | je fp_done |
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552 | cmp al,'f' |
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553 | je fp_done |
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554 | inc [fp_format] |
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555 | cmp [fp_format],80h |
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556 | jne fp_counter_ok |
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557 | mov [fp_format],7Fh |
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558 | fp_counter_ok: |
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31 | halyavin | 559 | dec esi |
157 | heavyiron | 560 | mov edi,fp_value+16 |
561 | push ecx |
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562 | mov ecx,10 |
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563 | call fp_div |
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564 | push dword [edi] |
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565 | push dword [edi+4] |
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566 | push dword [edi+8] |
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567 | push dword [edi+12] |
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568 | lods byte [esi] |
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569 | sub al,30h |
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570 | movzx ecx,al |
||
571 | call fp_mul |
||
572 | mov ebx,edi |
||
573 | mov edi,fp_value |
||
574 | call fp_add |
||
575 | mov edi,fp_value+16 |
||
576 | pop dword [edi+12] |
||
577 | pop dword [edi+8] |
||
578 | pop dword [edi+4] |
||
579 | pop dword [edi] |
||
580 | pop ecx |
||
581 | loop fp_after_dot |
||
582 | jmp fp_done |
||
583 | fp_exponent: |
||
31 | halyavin | 584 | or [fp_format],80h |
157 | heavyiron | 585 | xor edx,edx |
586 | xor ebp,ebp |
||
587 | dec ecx |
||
588 | jnz get_exponent |
||
589 | cmp byte [esi],'+' |
||
590 | je fp_exponent_sign |
||
591 | cmp byte [esi],'-' |
||
592 | jne fp_done |
||
593 | not ebp |
||
594 | fp_exponent_sign: |
||
31 | halyavin | 595 | add esi,2 |
157 | heavyiron | 596 | lods byte [esi] |
597 | movzx ecx,al |
||
598 | get_exponent: |
||
31 | halyavin | 599 | movzx eax,byte [esi] |
157 | heavyiron | 600 | inc esi |
601 | sub al,30h |
||
602 | cmp al,10 |
||
603 | jae exponent_ok |
||
604 | imul edx,10 |
||
605 | cmp edx,8000h |
||
606 | jae value_out_of_range |
||
607 | add edx,eax |
||
608 | loop get_exponent |
||
609 | exponent_ok: |
||
31 | halyavin | 610 | mov edi,fp_value |
157 | heavyiron | 611 | or edx,edx |
612 | jz fp_done |
||
613 | mov ecx,edx |
||
614 | or ebp,ebp |
||
615 | jnz fp_negative_power |
||
616 | fp_power: |
||
31 | halyavin | 617 | push ecx |
157 | heavyiron | 618 | mov ecx,10 |
619 | call fp_mul |
||
620 | pop ecx |
||
621 | loop fp_power |
||
622 | jmp fp_done |
||
623 | fp_negative_power: |
||
31 | halyavin | 624 | push ecx |
157 | heavyiron | 625 | mov ecx,10 |
626 | call fp_div |
||
627 | pop ecx |
||
628 | loop fp_negative_power |
||
629 | fp_done: |
||
31 | halyavin | 630 | mov edi,fp_value |
157 | heavyiron | 631 | mov al,[fp_format] |
632 | mov [edi+10],al |
||
633 | mov al,[fp_sign] |
||
634 | mov [edi+11],al |
||
635 | test byte [edi+15],80h |
||
636 | jz fp_ok |
||
637 | add dword [edi],1 |
||
638 | adc dword [edi+4],0 |
||
639 | jnc fp_ok |
||
640 | mov eax,[edi+4] |
||
641 | shrd [edi],eax,1 |
||
642 | shr eax,1 |
||
643 | or eax,80000000h |
||
644 | mov [edi+4],eax |
||
645 | inc word [edi+8] |
||
646 | fp_ok: |
||
31 | halyavin | 647 | pop edi |
157 | heavyiron | 648 | clc |
649 | ret |
||
650 | fp_mul: |
||
31 | halyavin | 651 | or ecx,ecx |
157 | heavyiron | 652 | jz fp_zero |
653 | mov eax,[edi+12] |
||
654 | mul ecx |
||
655 | mov [edi+12],eax |
||
656 | mov ebx,edx |
||
657 | mov eax,[edi] |
||
658 | mul ecx |
||
659 | add eax,ebx |
||
660 | adc edx,0 |
||
661 | mov [edi],eax |
||
662 | mov ebx,edx |
||
663 | mov eax,[edi+4] |
||
664 | mul ecx |
||
665 | add eax,ebx |
||
666 | adc edx,0 |
||
667 | mov [edi+4],eax |
||
668 | .loop: |
||
31 | halyavin | 669 | or edx,edx |
157 | heavyiron | 670 | jz .done |
671 | mov eax,[edi] |
||
672 | shrd [edi+12],eax,1 |
||
673 | mov eax,[edi+4] |
||
674 | shrd [edi],eax,1 |
||
675 | shrd eax,edx,1 |
||
676 | mov [edi+4],eax |
||
677 | shr edx,1 |
||
678 | inc dword [edi+8] |
||
679 | cmp dword [edi+8],8000h |
||
680 | jge value_out_of_range |
||
681 | jmp .loop |
||
682 | .done: |
||
31 | halyavin | 683 | ret |
157 | heavyiron | 684 | fp_div: |
31 | halyavin | 685 | mov eax,[edi+4] |
157 | heavyiron | 686 | xor edx,edx |
687 | div ecx |
||
688 | mov [edi+4],eax |
||
689 | mov eax,[edi] |
||
690 | div ecx |
||
691 | mov [edi],eax |
||
692 | mov eax,[edi+12] |
||
693 | div ecx |
||
694 | mov [edi+12],eax |
||
695 | mov ebx,eax |
||
696 | or ebx,[edi] |
||
697 | or ebx,[edi+4] |
||
698 | jz fp_zero |
||
699 | .loop: |
||
31 | halyavin | 700 | test byte [edi+7],80h |
157 | heavyiron | 701 | jnz .exp_ok |
702 | mov eax,[edi] |
||
703 | shld [edi+4],eax,1 |
||
704 | mov eax,[edi+12] |
||
705 | shld [edi],eax,1 |
||
706 | add eax,eax |
||
707 | mov [edi+12],eax |
||
708 | dec dword [edi+8] |
||
709 | add edx,edx |
||
710 | jmp .loop |
||
711 | .exp_ok: |
||
31 | halyavin | 712 | mov eax,edx |
157 | heavyiron | 713 | xor edx,edx |
714 | div ecx |
||
715 | add [edi+12],eax |
||
716 | adc dword [edi],0 |
||
717 | adc dword [edi+4],0 |
||
718 | jnc .done |
||
719 | mov eax,[edi+4] |
||
720 | mov ebx,[edi] |
||
721 | shrd [edi],eax,1 |
||
722 | shrd [edi+12],ebx,1 |
||
723 | shr eax,1 |
||
724 | or eax,80000000h |
||
725 | mov [edi+4],eax |
||
726 | inc dword [edi+8] |
||
727 | .done: |
||
31 | halyavin | 728 | ret |
157 | heavyiron | 729 | fp_add: |
31 | halyavin | 730 | cmp dword [ebx+8],8000h |
157 | heavyiron | 731 | je .done |
732 | cmp dword [edi+8],8000h |
||
733 | je .copy |
||
734 | mov eax,[ebx+8] |
||
735 | cmp eax,[edi+8] |
||
736 | jge .exp_ok |
||
737 | mov eax,[edi+8] |
||
738 | .exp_ok: |
||
31 | halyavin | 739 | call .change_exp |
157 | heavyiron | 740 | xchg ebx,edi |
741 | call .change_exp |
||
742 | xchg ebx,edi |
||
743 | mov edx,[ebx+12] |
||
744 | mov eax,[ebx] |
||
745 | mov ebx,[ebx+4] |
||
746 | add [edi+12],edx |
||
747 | adc [edi],eax |
||
748 | adc [edi+4],ebx |
||
749 | jnc .done |
||
750 | mov eax,[edi] |
||
751 | shrd [edi+12],eax,1 |
||
752 | mov eax,[edi+4] |
||
753 | shrd [edi],eax,1 |
||
754 | shr eax,1 |
||
755 | or eax,80000000h |
||
756 | mov [edi+4],eax |
||
757 | inc dword [edi+8] |
||
758 | .done: |
||
31 | halyavin | 759 | ret |
157 | heavyiron | 760 | .copy: |
31 | halyavin | 761 | mov eax,[ebx] |
157 | heavyiron | 762 | mov [edi],eax |
763 | mov eax,[ebx+4] |
||
764 | mov [edi+4],eax |
||
765 | mov eax,[ebx+8] |
||
766 | mov [edi+8],eax |
||
767 | mov eax,[ebx+12] |
||
768 | mov [edi+12],eax |
||
769 | ret |
||
770 | .change_exp: |
||
31 | halyavin | 771 | push ecx |
157 | heavyiron | 772 | mov ecx,eax |
773 | sub ecx,[ebx+8] |
||
774 | mov edx,[ebx+4] |
||
775 | jecxz .exp_done |
||
776 | .exp_loop: |
||
31 | halyavin | 777 | mov ebp,[ebx] |
157 | heavyiron | 778 | shrd [ebx+12],ebp,1 |
779 | shrd [ebx],edx,1 |
||
780 | shr edx,1 |
||
781 | inc dword [ebx+8] |
||
782 | loop .exp_loop |
||
783 | .exp_done: |
||
31 | halyavin | 784 | mov [ebx+4],edx |
157 | heavyiron | 785 | pop ecx |
786 | ret |
||
787 | fp_optimize: |
||
31 | halyavin | 788 | mov eax,[edi] |
157 | heavyiron | 789 | mov ebp,[edi+4] |
790 | or ebp,[edi] |
||
791 | or ebp,[edi+12] |
||
792 | jz fp_zero |
||
793 | .loop: |
||
31 | halyavin | 794 | test byte [edi+7],80h |
157 | heavyiron | 795 | jnz .done |
796 | shld [edi+4],eax,1 |
||
797 | mov ebp,[edi+12] |
||
798 | shld eax,ebp,1 |
||
799 | mov [edi],eax |
||
800 | shl dword [edi+12],1 |
||
801 | dec dword [edi+8] |
||
802 | jmp .loop |
||
803 | .done: |
||
31 | halyavin | 804 | ret |
157 | heavyiron | 805 | fp_zero: |
31 | halyavin | 806 | mov dword [edi+8],8000h |
157 | heavyiron | 807 | ret |
808 | |||
31 | halyavin | 809 | |
810 | mov [current_offset],edi |
||
157 | heavyiron | 811 | mov [value_undefined],0 |
812 | cmp byte [esi],0 |
||
813 | je get_string_value |
||
814 | cmp byte [esi],'.' |
||
815 | je convert_fp |
||
816 | calculation_loop: |
||
31 | halyavin | 817 | lods byte [esi] |
157 | heavyiron | 818 | cmp al,1 |
819 | je get_byte_number |
||
820 | cmp al,2 |
||
821 | je get_word_number |
||
822 | cmp al,4 |
||
823 | je get_dword_number |
||
824 | cmp al,8 |
||
825 | je get_qword_number |
||
826 | cmp al,0Fh |
||
827 | je value_out_of_range |
||
828 | cmp al,10h |
||
829 | je get_register |
||
830 | cmp al,11h |
||
831 | je get_label |
||
832 | cmp al,')' |
||
833 | je expression_calculated |
||
834 | cmp al,']' |
||
835 | je expression_calculated |
||
836 | cmp al,'!' |
||
837 | je invalid_expression |
||
838 | sub edi,14h |
||
839 | mov ebx,edi |
||
840 | sub ebx,14h |
||
841 | cmp al,0E0h |
||
842 | je calculate_rva |
||
843 | cmp al,0E1h |
||
174 | heavyiron | 844 | je calculate_plt |
845 | cmp al,0D0h |
||
157 | heavyiron | 846 | je calculate_not |
847 | cmp al,083h |
||
848 | je calculate_neg |
||
849 | mov dx,[ebx+8] |
||
850 | or dx,[edi+8] |
||
851 | cmp al,80h |
||
852 | je calculate_add |
||
853 | cmp al,81h |
||
854 | je calculate_sub |
||
855 | mov ah,[ebx+12] |
||
856 | or ah,[edi+12] |
||
857 | jz absolute_values_calculation |
||
858 | cmp [error_line],0 |
||
859 | jne absolute_values_calculation |
||
860 | mov eax,[current_line] |
||
861 | mov [error_line],eax |
||
862 | mov [error],invalid_use_of_symbol |
||
863 | absolute_values_calculation: |
||
31 | halyavin | 864 | cmp al,90h |
157 | heavyiron | 865 | je calculate_mul |
866 | cmp al,91h |
||
867 | je calculate_div |
||
868 | or dx,dx |
||
869 | jnz invalid_expression |
||
870 | cmp al,0A0h |
||
871 | je calculate_mod |
||
872 | cmp al,0B0h |
||
873 | je calculate_and |
||
874 | cmp al,0B1h |
||
875 | je calculate_or |
||
876 | cmp al,0B2h |
||
877 | je calculate_xor |
||
878 | cmp al,0C0h |
||
879 | je calculate_shl |
||
880 | cmp al,0C1h |
||
881 | je calculate_shr |
||
882 | jmp invalid_expression |
||
883 | expression_calculated: |
||
31 | halyavin | 884 | sub edi,14h |
157 | heavyiron | 885 | cmp [value_undefined],0 |
886 | je expression_value_ok |
||
887 | xor eax,eax |
||
888 | mov [edi],eax |
||
889 | mov [edi+4],eax |
||
890 | mov [edi+12],al |
||
891 | expression_value_ok: |
||
31 | halyavin | 892 | ret |
157 | heavyiron | 893 | get_byte_number: |
31 | halyavin | 894 | mov word [edi+8],0 |
157 | heavyiron | 895 | mov byte [edi+12],0 |
896 | xor eax,eax |
||
897 | lods byte [esi] |
||
898 | stos dword [edi] |
||
899 | xor al,al |
||
900 | stos dword [edi] |
||
901 | add edi,0Ch |
||
902 | jmp calculation_loop |
||
903 | get_word_number: |
||
31 | halyavin | 904 | mov word [edi+8],0 |
157 | heavyiron | 905 | mov byte [edi+12],0 |
906 | xor eax,eax |
||
907 | lods word [esi] |
||
908 | stos dword [edi] |
||
909 | xor ax,ax |
||
910 | stos dword [edi] |
||
911 | add edi,0Ch |
||
912 | jmp calculation_loop |
||
913 | get_dword_number: |
||
31 | halyavin | 914 | mov word [edi+8],0 |
157 | heavyiron | 915 | mov byte [edi+12],0 |
916 | movs dword [edi],[esi] |
||
917 | xor eax,eax |
||
918 | stos dword [edi] |
||
919 | add edi,0Ch |
||
920 | jmp calculation_loop |
||
921 | get_qword_number: |
||
31 | halyavin | 922 | mov word [edi+8],0 |
157 | heavyiron | 923 | mov byte [edi+12],0 |
924 | movs dword [edi],[esi] |
||
925 | movs dword [edi],[esi] |
||
926 | add edi,0Ch |
||
927 | jmp calculation_loop |
||
928 | get_register: |
||
31 | halyavin | 929 | mov byte [edi+9],0 |
157 | heavyiron | 930 | mov byte [edi+12],0 |
931 | lods byte [esi] |
||
932 | mov [edi+8],al |
||
933 | mov byte [edi+10],1 |
||
934 | xor eax,eax |
||
935 | stos dword [edi] |
||
936 | stos dword [edi] |
||
937 | add edi,0Ch |
||
938 | jmp calculation_loop |
||
939 | get_label: |
||
31 | halyavin | 940 | xor eax,eax |
157 | heavyiron | 941 | mov [edi+8],eax |
942 | mov [edi+12],al |
||
943 | mov [edi+20],eax |
||
944 | lods dword [esi] |
||
945 | cmp eax,0Fh |
||
946 | jb predefined_label |
||
947 | je reserved_word_used_as_symbol |
||
948 | mov ebx,eax |
||
949 | mov ax,[current_pass] |
||
950 | mov [ebx+18],ax |
||
951 | or byte [ebx+8],8 |
||
952 | test byte [ebx+8],1 |
||
953 | jz label_undefined |
||
954 | cmp ax,[ebx+16] |
||
955 | je label_defined |
||
956 | test byte [ebx+8],4 |
||
957 | jnz label_undefined |
||
958 | test byte [ebx+9],1 |
||
959 | jz label_defined |
||
960 | mov eax,[ebx] |
||
961 | sub eax,dword [adjustment] |
||
962 | stos dword [edi] |
||
963 | mov eax,[ebx+4] |
||
964 | sbb eax,dword [adjustment+4] |
||
965 | stos dword [edi] |
||
966 | mov eax,dword [adjustment] |
||
967 | or eax,dword [adjustment+4] |
||
968 | jz got_label |
||
969 | or [next_pass_needed],-1 |
||
970 | jmp got_label |
||
971 | label_defined: |
||
31 | halyavin | 972 | mov eax,[ebx] |
157 | heavyiron | 973 | stos dword [edi] |
974 | mov eax,[ebx+4] |
||
975 | stos dword [edi] |
||
976 | got_label: |
||
31 | halyavin | 977 | mov al,[ebx+11] |
157 | heavyiron | 978 | mov [edi-8+12],al |
979 | mov eax,[ebx+12] |
||
980 | mov [edi-8+8],eax |
||
981 | mov eax,[ebx+20] |
||
982 | mov [edi-8+16],eax |
||
983 | add edi,0Ch |
||
984 | mov al,[ebx+10] |
||
985 | or al,al |
||
986 | jz calculation_loop |
||
987 | cmp [size_override],-1 |
||
988 | je calculation_loop |
||
989 | cmp [size_override],0 |
||
990 | je check_size |
||
991 | cmp [operand_size],0 |
||
992 | jne calculation_loop |
||
993 | mov [operand_size],al |
||
994 | jmp calculation_loop |
||
995 | check_size: |
||
31 | halyavin | 996 | xchg [operand_size],al |
157 | heavyiron | 997 | or al,al |
998 | jz calculation_loop |
||
999 | cmp al,[operand_size] |
||
1000 | jne operand_sizes_do_not_match |
||
1001 | jmp calculation_loop |
||
1002 | current_offset_label: |
||
31 | halyavin | 1003 | mov al,[labels_type] |
157 | heavyiron | 1004 | mov [edi+12],al |
1005 | mov eax,[org_symbol] |
||
1006 | mov [edi+16],eax |
||
1007 | mov eax,[current_offset] |
||
1008 | xor edx,edx |
||
1009 | sub eax,dword [org_origin] |
||
1010 | sbb edx,dword [org_origin+4] |
||
1011 | stos dword [edi] |
||
1012 | mov eax,edx |
||
1013 | stos dword [edi] |
||
1014 | mov eax,[org_registers] |
||
1015 | stos dword [edi] |
||
1016 | add edi,8 |
||
1017 | jmp calculation_loop |
||
1018 | org_origin_label: |
||
31 | halyavin | 1019 | mov al,[labels_type] |
157 | heavyiron | 1020 | mov [edi+12],al |
1021 | mov eax,[org_symbol] |
||
1022 | mov [edi+16],eax |
||
1023 | mov eax,[org_start] |
||
1024 | xor edx,edx |
||
1025 | sub eax,dword [org_origin] |
||
1026 | sbb edx,dword [org_origin+4] |
||
1027 | stos dword [edi] |
||
1028 | mov eax,edx |
||
1029 | stos dword [edi] |
||
1030 | mov eax,[org_registers] |
||
1031 | stos dword [edi] |
||
1032 | add edi,8 |
||
1033 | jmp calculation_loop |
||
1034 | counter_label: |
||
31 | halyavin | 1035 | mov eax,[counter] |
157 | heavyiron | 1036 | make_dword_label_value: |
31 | halyavin | 1037 | stos dword [edi] |
157 | heavyiron | 1038 | xor eax,eax |
1039 | stos dword [edi] |
||
1040 | add edi,0Ch |
||
1041 | jmp calculation_loop |
||
1042 | timestamp_label: |
||
31 | halyavin | 1043 | call make_timestamp |
157 | heavyiron | 1044 | jmp make_dword_label_value |
1045 | predefined_label: |
||
31 | halyavin | 1046 | or eax,eax |
157 | heavyiron | 1047 | jz current_offset_label |
1048 | cmp eax,1 |
||
1049 | je counter_label |
||
1050 | cmp eax,2 |
||
1051 | je timestamp_label |
||
1052 | cmp eax,3 |
||
1053 | je org_origin_label |
||
1054 | label_undefined: |
||
31 | halyavin | 1055 | cmp [current_pass],1 |
157 | heavyiron | 1056 | ja undefined_value |
1057 | force_next_pass: |
||
31 | halyavin | 1058 | or [next_pass_needed],-1 |
157 | heavyiron | 1059 | undefined_value: |
31 | halyavin | 1060 | mov byte [edi+12],0 |
157 | heavyiron | 1061 | or [value_undefined],-1 |
1062 | xor eax,eax |
||
1063 | stos dword [edi] |
||
1064 | stos dword [edi] |
||
1065 | add edi,0Ch |
||
1066 | cmp [error_line],0 |
||
1067 | jne calculation_loop |
||
1068 | mov eax,[current_line] |
||
1069 | mov [error_line],eax |
||
1070 | mov [error],undefined_symbol |
||
1071 | jmp calculation_loop |
||
1072 | calculate_add: |
||
31 | halyavin | 1073 | mov ecx,[ebx+16] |
157 | heavyiron | 1074 | cmp byte [edi+12],0 |
1075 | je add_values |
||
1076 | mov ecx,[edi+16] |
||
1077 | cmp byte [ebx+12],0 |
||
1078 | je add_values |
||
1079 | cmp [error_line],0 |
||
1080 | jne add_values |
||
1081 | mov eax,[current_line] |
||
1082 | mov [error_line],eax |
||
1083 | mov [error],invalid_use_of_symbol |
||
1084 | add_values: |
||
31 | halyavin | 1085 | mov al,[edi+12] |
157 | heavyiron | 1086 | or [ebx+12],al |
1087 | mov [ebx+16],ecx |
||
1088 | mov eax,[edi] |
||
1089 | add [ebx],eax |
||
1090 | mov eax,[edi+4] |
||
1091 | adc [ebx+4],eax |
||
1092 | or dx,dx |
||
1093 | jz calculation_loop |
||
1094 | push esi |
||
1095 | mov esi,ebx |
||
1096 | lea ebx,[edi+10] |
||
1097 | mov cl,[edi+8] |
||
1098 | call add_register |
||
1099 | lea ebx,[edi+11] |
||
1100 | mov cl,[edi+9] |
||
1101 | call add_register |
||
1102 | pop esi |
||
1103 | jmp calculation_loop |
||
1104 | add_register: |
||
31 | halyavin | 1105 | or cl,cl |
157 | heavyiron | 1106 | jz add_register_done |
1107 | add_register_start: |
||
31 | halyavin | 1108 | cmp [esi+8],cl |
157 | heavyiron | 1109 | jne add_in_second_slot |
1110 | mov al,[ebx] |
||
1111 | add [esi+10],al |
||
1112 | jnz add_register_done |
||
1113 | mov byte [esi+8],0 |
||
1114 | ret |
||
1115 | add_in_second_slot: |
||
31 | halyavin | 1116 | cmp [esi+9],cl |
157 | heavyiron | 1117 | jne create_in_first_slot |
1118 | mov al,[ebx] |
||
1119 | add [esi+11],al |
||
1120 | jnz add_register_done |
||
1121 | mov byte [esi+9],0 |
||
1122 | ret |
||
1123 | create_in_first_slot: |
||
31 | halyavin | 1124 | cmp byte [esi+8],0 |
157 | heavyiron | 1125 | jne create_in_second_slot |
1126 | mov [esi+8],cl |
||
1127 | mov al,[ebx] |
||
1128 | mov [esi+10],al |
||
1129 | ret |
||
1130 | create_in_second_slot: |
||
31 | halyavin | 1131 | cmp byte [esi+9],0 |
157 | heavyiron | 1132 | jne invalid_expression |
1133 | mov [esi+9],cl |
||
1134 | mov al,[ebx] |
||
1135 | mov [esi+11],al |
||
1136 | add_register_done: |
||
31 | halyavin | 1137 | ret |
157 | heavyiron | 1138 | calculate_sub: |
31 | halyavin | 1139 | xor ah,ah |
157 | heavyiron | 1140 | mov ah,[ebx+12] |
1141 | mov al,[edi+12] |
||
1142 | or al,al |
||
1143 | jz sub_values |
||
1144 | cmp al,ah |
||
1145 | jne invalid_sub |
||
1146 | xor ah,ah |
||
1147 | mov ecx,[edi+16] |
||
1148 | cmp ecx,[ebx+16] |
||
1149 | jne invalid_sub |
||
1150 | sub_values: |
||
31 | halyavin | 1151 | mov [ebx+12],ah |
157 | heavyiron | 1152 | mov eax,[edi] |
1153 | sub [ebx],eax |
||
1154 | mov eax,[edi+4] |
||
1155 | sbb [ebx+4],eax |
||
1156 | or dx,dx |
||
1157 | jz calculation_loop |
||
1158 | push esi |
||
1159 | mov esi,ebx |
||
1160 | lea ebx,[edi+10] |
||
1161 | mov cl,[edi+8] |
||
1162 | call sub_register |
||
1163 | lea ebx,[edi+11] |
||
1164 | mov cl,[edi+9] |
||
1165 | call sub_register |
||
1166 | pop esi |
||
1167 | jmp calculation_loop |
||
1168 | invalid_sub: |
||
31 | halyavin | 1169 | cmp [error_line],0 |
157 | heavyiron | 1170 | jne sub_values |
1171 | mov eax,[current_line] |
||
1172 | mov [error_line],eax |
||
1173 | mov [error],invalid_use_of_symbol |
||
1174 | jmp sub_values |
||
1175 | sub_register: |
||
31 | halyavin | 1176 | or cl,cl |
157 | heavyiron | 1177 | jz add_register_done |
1178 | neg byte [ebx] |
||
1179 | jmp add_register_start |
||
1180 | calculate_mul: |
||
31 | halyavin | 1181 | or dx,dx |
157 | heavyiron | 1182 | jz mul_start |
1183 | cmp word [ebx+8],0 |
||
1184 | jne mul_start |
||
1185 | mov eax,[ebx] |
||
1186 | xchg eax,[edi] |
||
1187 | mov [ebx],eax |
||
1188 | mov eax,[ebx+4] |
||
1189 | xchg eax,[edi+4] |
||
1190 | mov [ebx+4],eax |
||
1191 | mov eax,[ebx+8] |
||
1192 | xchg eax,[edi+8] |
||
1193 | mov [ebx+8],eax |
||
1194 | mov eax,[ebx+12] |
||
1195 | xchg eax,[edi+12] |
||
1196 | mov [ebx+12],eax |
||
1197 | mul_start: |
||
31 | halyavin | 1198 | push esi edx |
157 | heavyiron | 1199 | mov esi,ebx |
1200 | xor bl,bl |
||
1201 | bt dword [esi+4],31 |
||
1202 | jnc mul_first_sign_ok |
||
1203 | not dword [esi] |
||
1204 | not dword [esi+4] |
||
1205 | add dword [esi],1 |
||
1206 | adc dword [esi+4],0 |
||
1207 | not bl |
||
1208 | mul_first_sign_ok: |
||
31 | halyavin | 1209 | bt dword [edi+4],31 |
157 | heavyiron | 1210 | jnc mul_second_sign_ok |
1211 | not dword [edi] |
||
1212 | not dword [edi+4] |
||
1213 | add dword [edi],1 |
||
1214 | adc dword [edi+4],0 |
||
1215 | not bl |
||
1216 | mul_second_sign_ok: |
||
31 | halyavin | 1217 | cmp dword [esi+4],0 |
157 | heavyiron | 1218 | jz mul_numbers |
1219 | cmp dword [edi+4],0 |
||
1220 | jnz value_out_of_range |
||
1221 | mul_numbers: |
||
31 | halyavin | 1222 | mov eax,[esi+4] |
157 | heavyiron | 1223 | mul dword [edi] |
1224 | or edx,edx |
||
1225 | jnz value_out_of_range |
||
1226 | mov ecx,eax |
||
1227 | mov eax,[esi] |
||
1228 | mul dword [edi+4] |
||
1229 | or edx,edx |
||
1230 | jnz value_out_of_range |
||
1231 | add ecx,eax |
||
1232 | jc value_out_of_range |
||
1233 | mov eax,[esi] |
||
1234 | mul dword [edi] |
||
1235 | add edx,ecx |
||
1236 | jc value_out_of_range |
||
1237 | test edx,1 shl 31 |
||
1238 | jnz value_out_of_range |
||
1239 | mov [esi],eax |
||
1240 | mov [esi+4],edx |
||
1241 | or bl,bl |
||
1242 | jz mul_ok |
||
1243 | not dword [esi] |
||
1244 | not dword [esi+4] |
||
1245 | add dword [esi],1 |
||
1246 | adc dword [esi+4],0 |
||
1247 | mul_ok: |
||
31 | halyavin | 1248 | pop edx |
157 | heavyiron | 1249 | or dx,dx |
1250 | jz mul_calculated |
||
1251 | cmp word [edi+8],0 |
||
1252 | jne invalid_value |
||
1253 | cmp byte [esi+8],0 |
||
1254 | je mul_first_register_ok |
||
1255 | mov al,[edi] |
||
1256 | cbw |
||
1257 | cwde |
||
1258 | cdq |
||
1259 | cmp edx,[edi+4] |
||
1260 | jne value_out_of_range |
||
1261 | cmp eax,[edi] |
||
1262 | jne value_out_of_range |
||
1263 | imul byte [esi+10] |
||
1264 | mov dl,ah |
||
1265 | cbw |
||
1266 | cmp ah,dl |
||
1267 | jne value_out_of_range |
||
1268 | mov [esi+10],al |
||
1269 | mul_first_register_ok: |
||
31 | halyavin | 1270 | cmp byte [esi+9],0 |
157 | heavyiron | 1271 | je mul_calculated |
1272 | mov al,[edi] |
||
1273 | cbw |
||
1274 | cwde |
||
1275 | cdq |
||
1276 | cmp edx,[edi+4] |
||
1277 | jne value_out_of_range |
||
1278 | cmp eax,[edi] |
||
1279 | jne value_out_of_range |
||
1280 | imul byte [esi+11] |
||
1281 | mov dl,ah |
||
1282 | cbw |
||
1283 | cmp ah,dl |
||
1284 | jne value_out_of_range |
||
1285 | mov [esi+11],al |
||
1286 | mul_calculated: |
||
31 | halyavin | 1287 | pop esi |
157 | heavyiron | 1288 | jmp calculation_loop |
1289 | calculate_div: |
||
31 | halyavin | 1290 | push esi edx |
157 | heavyiron | 1291 | mov esi,ebx |
1292 | call div_64 |
||
1293 | pop edx |
||
1294 | or dx,dx |
||
1295 | jz div_calculated |
||
1296 | cmp byte [esi+8],0 |
||
1297 | je div_first_register_ok |
||
1298 | mov al,[edi] |
||
1299 | cbw |
||
1300 | cwde |
||
1301 | cdq |
||
1302 | cmp edx,[edi+4] |
||
1303 | jne value_out_of_range |
||
1304 | cmp eax,[edi] |
||
1305 | jne value_out_of_range |
||
1306 | or al,al |
||
1307 | jz value_out_of_range |
||
1308 | mov al,[esi+10] |
||
1309 | cbw |
||
1310 | idiv byte [edi] |
||
1311 | or ah,ah |
||
1312 | jnz invalid_use_of_symbol |
||
1313 | mov [esi+10],al |
||
1314 | div_first_register_ok: |
||
31 | halyavin | 1315 | cmp byte [esi+9],0 |
157 | heavyiron | 1316 | je div_calculated |
1317 | mov al,[edi] |
||
1318 | cbw |
||
1319 | cwde |
||
1320 | cdq |
||
1321 | cmp edx,[edi+4] |
||
1322 | jne value_out_of_range |
||
1323 | cmp eax,[edi] |
||
1324 | jne value_out_of_range |
||
1325 | or al,al |
||
1326 | jz value_out_of_range |
||
1327 | mov al,[esi+11] |
||
1328 | cbw |
||
1329 | idiv byte [edi] |
||
1330 | or ah,ah |
||
1331 | jnz invalid_use_of_symbol |
||
1332 | mov [esi+11],al |
||
1333 | div_calculated: |
||
31 | halyavin | 1334 | pop esi |
157 | heavyiron | 1335 | jmp calculation_loop |
1336 | calculate_mod: |
||
31 | halyavin | 1337 | push esi |
157 | heavyiron | 1338 | mov esi,ebx |
1339 | call div_64 |
||
1340 | mov [esi],eax |
||
1341 | mov [esi+4],edx |
||
1342 | pop esi |
||
1343 | jmp calculation_loop |
||
1344 | calculate_and: |
||
31 | halyavin | 1345 | mov eax,[edi] |
157 | heavyiron | 1346 | and [ebx],eax |
1347 | mov eax,[edi+4] |
||
1348 | and [ebx+4],eax |
||
1349 | jmp calculation_loop |
||
1350 | calculate_or: |
||
31 | halyavin | 1351 | mov eax,[edi] |
157 | heavyiron | 1352 | or [ebx],eax |
1353 | mov eax,[edi+4] |
||
1354 | or [ebx+4],eax |
||
1355 | jmp calculation_loop |
||
1356 | calculate_xor: |
||
31 | halyavin | 1357 | mov eax,[edi] |
157 | heavyiron | 1358 | xor [ebx],eax |
1359 | mov eax,[edi+4] |
||
1360 | xor [ebx+4],eax |
||
1361 | jmp calculation_loop |
||
1362 | shr_negative: |
||
31 | halyavin | 1363 | not dword [edi] |
157 | heavyiron | 1364 | not dword [edi+4] |
1365 | add dword [edi],1 |
||
1366 | adc dword [edi+4],0 |
||
1367 | calculate_shl: |
||
31 | halyavin | 1368 | mov eax,dword [edi+4] |
157 | heavyiron | 1369 | bt eax,31 |
1370 | jc shl_negative |
||
1371 | or eax,eax |
||
1372 | jnz zero_value |
||
1373 | mov ecx,[edi] |
||
1374 | cmp ecx,64 |
||
1375 | jae zero_value |
||
1376 | cmp ecx,32 |
||
1377 | jae shl_high |
||
1378 | mov edx,[ebx+4] |
||
1379 | mov eax,[ebx] |
||
1380 | shld edx,eax,cl |
||
1381 | shl eax,cl |
||
1382 | mov [ebx],eax |
||
1383 | mov [ebx+4],edx |
||
1384 | jmp calculation_loop |
||
1385 | shl_high: |
||
31 | halyavin | 1386 | sub cl,32 |
157 | heavyiron | 1387 | mov eax,[ebx] |
1388 | shl eax,cl |
||
1389 | mov [ebx+4],eax |
||
1390 | mov dword [ebx],0 |
||
1391 | jmp calculation_loop |
||
1392 | shl_negative: |
||
31 | halyavin | 1393 | not dword [edi] |
157 | heavyiron | 1394 | not dword [edi+4] |
1395 | add dword [edi],1 |
||
1396 | adc dword [edi+4],0 |
||
1397 | calculate_shr: |
||
31 | halyavin | 1398 | mov eax,dword [edi+4] |
157 | heavyiron | 1399 | bt eax,31 |
1400 | jc shr_negative |
||
1401 | or eax,eax |
||
1402 | jnz zero_value |
||
1403 | mov ecx,[edi] |
||
1404 | cmp ecx,64 |
||
1405 | jae zero_value |
||
1406 | cmp ecx,32 |
||
1407 | jae shr_high |
||
1408 | mov edx,[ebx+4] |
||
1409 | mov eax,[ebx] |
||
1410 | shrd eax,edx,cl |
||
1411 | shr edx,cl |
||
1412 | mov [ebx],eax |
||
1413 | mov [ebx+4],edx |
||
1414 | jmp calculation_loop |
||
1415 | shr_high: |
||
31 | halyavin | 1416 | sub cl,32 |
157 | heavyiron | 1417 | mov eax,[ebx+4] |
1418 | shr eax,cl |
||
1419 | mov [ebx],eax |
||
1420 | mov dword [ebx+4],0 |
||
1421 | jmp calculation_loop |
||
1422 | zero_value: |
||
31 | halyavin | 1423 | mov dword [ebx],0 |
157 | heavyiron | 1424 | mov dword [ebx+4],0 |
1425 | jmp calculation_loop |
||
1426 | calculate_not: |
||
31 | halyavin | 1427 | cmp word [edi+8],0 |
157 | heavyiron | 1428 | jne invalid_expression |
1429 | cmp byte [edi+12],0 |
||
1430 | je not_ok |
||
1431 | cmp [error_line],0 |
||
1432 | jne not_ok |
||
1433 | mov eax,[current_line] |
||
1434 | mov [error_line],eax |
||
1435 | mov [error],invalid_use_of_symbol |
||
1436 | not_ok: |
||
31 | halyavin | 1437 | cmp [value_size],1 |
157 | heavyiron | 1438 | je not_byte |
1439 | cmp [value_size],2 |
||
1440 | je not_word |
||
1441 | cmp [value_size],4 |
||
1442 | je not_dword |
||
1443 | cmp [value_size],6 |
||
1444 | je not_pword |
||
1445 | not_qword: |
||
31 | halyavin | 1446 | not dword [edi] |
157 | heavyiron | 1447 | not dword [edi+4] |
1448 | add edi,14h |
||
1449 | jmp calculation_loop |
||
1450 | not_byte: |
||
31 | halyavin | 1451 | cmp dword [edi+4],0 |
157 | heavyiron | 1452 | jne not_qword |
1453 | cmp word [edi+2],0 |
||
1454 | jne not_qword |
||
1455 | cmp byte [edi+1],0 |
||
1456 | jne not_qword |
||
1457 | not byte [edi] |
||
1458 | add edi,14h |
||
1459 | jmp calculation_loop |
||
1460 | not_word: |
||
31 | halyavin | 1461 | cmp dword [edi+4],0 |
157 | heavyiron | 1462 | jne not_qword |
1463 | cmp word [edi+2],0 |
||
1464 | jne not_qword |
||
1465 | not word [edi] |
||
1466 | add edi,14h |
||
1467 | jmp calculation_loop |
||
1468 | not_dword: |
||
31 | halyavin | 1469 | cmp dword [edi+4],0 |
157 | heavyiron | 1470 | jne not_qword |
1471 | not dword [edi] |
||
1472 | add edi,14h |
||
1473 | jmp calculation_loop |
||
1474 | not_pword: |
||
31 | halyavin | 1475 | cmp word [edi+6],0 |
157 | heavyiron | 1476 | jne not_qword |
1477 | not dword [edi] |
||
1478 | not word [edi+4] |
||
1479 | add edi,14h |
||
1480 | jmp calculation_loop |
||
1481 | calculate_neg: |
||
31 | halyavin | 1482 | cmp word [edi+8],0 |
157 | heavyiron | 1483 | jne invalid_expression |
1484 | cmp byte [edi+12],0 |
||
1485 | je neg_ok |
||
1486 | cmp [error_line],0 |
||
1487 | jne neg_ok |
||
1488 | mov eax,[current_line] |
||
1489 | mov [error_line],eax |
||
1490 | mov [error],invalid_use_of_symbol |
||
1491 | neg_ok: |
||
31 | halyavin | 1492 | mov eax,[edi] |
157 | heavyiron | 1493 | mov edx,[edi+4] |
1494 | mov dword [edi],0 |
||
1495 | mov dword [edi+4],0 |
||
1496 | sub [edi],eax |
||
1497 | sbb [edi+4],edx |
||
1498 | add edi,14h |
||
1499 | jmp calculation_loop |
||
1500 | calculate_rva: |
||
31 | halyavin | 1501 | cmp word [edi+8],0 |
157 | heavyiron | 1502 | jne invalid_expression |
1503 | cmp [output_format],5 |
||
1504 | je calculate_gotoff |
||
1505 | cmp [output_format],3 |
||
1506 | jne invalid_expression |
||
1507 | test [format_flags],8 |
||
1508 | jnz pe64_rva |
||
1509 | mov al,2 |
||
1510 | bt [resolver_flags],0 |
||
1511 | jc rva_type_ok |
||
1512 | xor al,al |
||
1513 | rva_type_ok: |
||
109 | heavyiron | 1514 | cmp byte [edi+12],al |
157 | heavyiron | 1515 | je rva_ok |
1516 | cmp [error_line],0 |
||
1517 | jne rva_ok |
||
1518 | mov eax,[current_line] |
||
1519 | mov [error_line],eax |
||
1520 | mov [error],invalid_use_of_symbol |
||
1521 | rva_ok: |
||
31 | halyavin | 1522 | mov byte [edi+12],0 |
157 | heavyiron | 1523 | mov eax,[code_start] |
1524 | mov eax,[eax+34h] |
||
1525 | cdq |
||
1526 | sub [edi],eax |
||
1527 | sbb [edi+4],edx |
||
1528 | add edi,14h |
||
1529 | jmp calculation_loop |
||
1530 | pe64_rva: |
||
31 | halyavin | 1531 | mov al,4 |
157 | heavyiron | 1532 | bt [resolver_flags],0 |
1533 | jc pe64_rva_type_ok |
||
1534 | xor al,al |
||
1535 | pe64_rva_type_ok: |
||
109 | heavyiron | 1536 | cmp byte [edi+12],al |
157 | heavyiron | 1537 | je pe64_rva_ok |
1538 | cmp [error_line],0 |
||
1539 | jne pe64_rva_ok |
||
1540 | mov eax,[current_line] |
||
1541 | mov [error_line],eax |
||
1542 | mov [error],invalid_use_of_symbol |
||
1543 | pe64_rva_ok: |
||
31 | halyavin | 1544 | mov byte [edi+12],0 |
157 | heavyiron | 1545 | mov eax,[code_start] |
1546 | mov edx,[eax+34h] |
||
1547 | mov eax,[eax+30h] |
||
1548 | sub [edi],eax |
||
1549 | sbb [edi+4],edx |
||
1550 | add edi,14h |
||
1551 | jmp calculation_loop |
||
1552 | calculate_gotoff: |
||
109 | heavyiron | 1553 | test [format_flags],8+1 |
157 | heavyiron | 1554 | jnz invalid_expression |
1555 | mov dl,5 |
||
174 | heavyiron | 1556 | cmp byte [edi+12],2 |
157 | heavyiron | 1557 | je change_value_type |
174 | heavyiron | 1558 | incorrect_change_of_value_type: |
1559 | cmp [error_line],0 |
||
157 | heavyiron | 1560 | jne change_value_type |
174 | heavyiron | 1561 | mov eax,[current_line] |
157 | heavyiron | 1562 | mov [error_line],eax |
1563 | mov [error],invalid_use_of_symbol |
||
1564 | change_value_type: |
||
174 | heavyiron | 1565 | mov byte [edi+12],dl |
1566 | add edi,14h |
||
157 | heavyiron | 1567 | jmp calculation_loop |
1568 | calculate_plt: |
||
174 | heavyiron | 1569 | cmp word [edi+8],0 |
1570 | jne invalid_expression |
||
1571 | cmp [output_format],5 |
||
1572 | jne invalid_expression |
||
1573 | test [format_flags],1 |
||
1574 | jnz invalid_expression |
||
1575 | mov dl,6 |
||
1576 | mov dh,2 |
||
1577 | test [format_flags],8 |
||
1578 | jz check_value_for_plt |
||
1579 | mov dh,4 |
||
1580 | check_value_for_plt: |
||
1581 | mov eax,[edi] |
||
1582 | or eax,[edi+4] |
||
1583 | jnz incorrect_change_of_value_type |
||
1584 | cmp byte [edi+12],dh |
||
1585 | jne incorrect_change_of_value_type |
||
1586 | mov eax,[edi+16] |
||
1587 | cmp byte [eax],81h |
||
1588 | jne incorrect_change_of_value_type |
||
1589 | jmp change_value_type |
||
1590 | div_64: |
||
31 | halyavin | 1591 | xor ebx,ebx |
157 | heavyiron | 1592 | cmp dword [edi],0 |
1593 | jne divider_ok |
||
1594 | cmp dword [edi+4],0 |
||
1595 | jne divider_ok |
||
1596 | cmp [next_pass_needed],0 |
||
1597 | je value_out_of_range |
||
1598 | jmp div_done |
||
1599 | divider_ok: |
||
31 | halyavin | 1600 | bt dword [esi+4],31 |
157 | heavyiron | 1601 | jnc div_first_sign_ok |
1602 | not dword [esi] |
||
1603 | not dword [esi+4] |
||
1604 | add dword [esi],1 |
||
1605 | adc dword [esi+4],0 |
||
1606 | not bx |
||
1607 | div_first_sign_ok: |
||
31 | halyavin | 1608 | bt dword [edi+4],31 |
157 | heavyiron | 1609 | jnc div_second_sign_ok |
1610 | not dword [edi] |
||
1611 | not dword [edi+4] |
||
1612 | add dword [edi],1 |
||
1613 | adc dword [edi+4],0 |
||
1614 | not bl |
||
1615 | div_second_sign_ok: |
||
31 | halyavin | 1616 | cmp dword [edi+4],0 |
157 | heavyiron | 1617 | jne div_high |
1618 | mov ecx,[edi] |
||
1619 | mov eax,[esi+4] |
||
1620 | xor edx,edx |
||
1621 | div ecx |
||
1622 | mov [esi+4],eax |
||
1623 | mov eax,[esi] |
||
1624 | div ecx |
||
1625 | mov [esi],eax |
||
1626 | mov eax,edx |
||
1627 | xor edx,edx |
||
1628 | jmp div_done |
||
1629 | div_high: |
||
31 | halyavin | 1630 | mov eax,[esi+4] |
157 | heavyiron | 1631 | xor edx,edx |
1632 | div dword [edi+4] |
||
1633 | mov ebx,[esi] |
||
1634 | mov [esi],eax |
||
1635 | mov dword [esi+4],0 |
||
1636 | mov ecx,edx |
||
1637 | mul dword [edi] |
||
1638 | div_high_loop: |
||
31 | halyavin | 1639 | cmp ecx,edx |
157 | heavyiron | 1640 | ja div_high_done |
1641 | jb div_high_large_correction |
||
1642 | cmp ebx,eax |
||
1643 | jae div_high_done |
||
1644 | div_high_correction: |
||
31 | halyavin | 1645 | dec dword [esi] |
157 | heavyiron | 1646 | sub eax,[edi] |
1647 | sbb edx,[edi+4] |
||
1648 | jnc div_high_loop |
||
1649 | div_high_done: |
||
31 | halyavin | 1650 | sub ebx,eax |
157 | heavyiron | 1651 | sbb ecx,edx |
1652 | mov edx,ecx |
||
1653 | mov eax,ebx |
||
1654 | ret |
||
1655 | div_high_large_correction: |
||
31 | halyavin | 1656 | push eax edx |
157 | heavyiron | 1657 | mov eax,edx |
1658 | sub eax,ecx |
||
1659 | xor edx,edx |
||
1660 | div dword [edi+4] |
||
1661 | shr eax,1 |
||
1662 | jz div_high_small_correction |
||
1663 | sub [esi],eax |
||
1664 | push eax |
||
1665 | mul dword [edi+4] |
||
1666 | sub dword [esp+4],eax |
||
1667 | pop eax |
||
1668 | mul dword [edi] |
||
1669 | sub dword [esp+4],eax |
||
1670 | sbb dword [esp],edx |
||
1671 | pop edx eax |
||
1672 | jmp div_high_loop |
||
1673 | div_high_small_correction: |
||
31 | halyavin | 1674 | pop edx eax |
157 | heavyiron | 1675 | jmp div_high_correction |
1676 | div_done: |
||
31 | halyavin | 1677 | or bh,bh |
157 | heavyiron | 1678 | jz remainder_ok |
1679 | not eax |
||
1680 | not edx |
||
1681 | add eax,1 |
||
1682 | adc edx,0 |
||
1683 | remainder_ok: |
||
31 | halyavin | 1684 | or bl,bl |
157 | heavyiron | 1685 | jz div_ok |
1686 | not dword [esi] |
||
1687 | not dword [esi+4] |
||
1688 | add dword [esi],1 |
||
1689 | adc dword [esi+4],0 |
||
1690 | div_ok: |
||
31 | halyavin | 1691 | ret |
157 | heavyiron | 1692 | convert_fp: |
31 | halyavin | 1693 | inc esi |
157 | heavyiron | 1694 | mov word [edi+8],0 |
1695 | mov byte [edi+12],0 |
||
1696 | mov al,[value_size] |
||
1697 | cmp al,4 |
||
1698 | je convert_fp_dword |
||
1699 | cmp al,8 |
||
1700 | je convert_fp_qword |
||
1701 | jmp invalid_value |
||
1702 | convert_fp_dword: |
||
31 | halyavin | 1703 | xor eax,eax |
157 | heavyiron | 1704 | cmp word [esi+8],8000h |
1705 | je fp_dword_store |
||
1706 | mov bx,[esi+8] |
||
1707 | mov eax,[esi+4] |
||
1708 | shl eax,1 |
||
1709 | shr eax,9 |
||
1710 | jnc fp_dword_ok |
||
1711 | inc eax |
||
1712 | bt eax,23 |
||
1713 | jnc fp_dword_ok |
||
1714 | and eax,1 shl 23 - 1 |
||
1715 | inc bx |
||
1716 | shr eax,1 |
||
1717 | fp_dword_ok: |
||
31 | halyavin | 1718 | add bx,7Fh |
157 | heavyiron | 1719 | cmp bx,100h |
1720 | jae value_out_of_range |
||
1721 | shl ebx,23 |
||
1722 | or eax,ebx |
||
1723 | fp_dword_store: |
||
31 | halyavin | 1724 | mov bl,[esi+11] |
157 | heavyiron | 1725 | shl ebx,31 |
1726 | or eax,ebx |
||
1727 | mov [edi],eax |
||
1728 | xor eax,eax |
||
1729 | mov [edi+4],eax |
||
1730 | add esi,13 |
||
1731 | ret |
||
1732 | convert_fp_qword: |
||
31 | halyavin | 1733 | xor eax,eax |
157 | heavyiron | 1734 | xor edx,edx |
1735 | cmp word [esi+8],8000h |
||
1736 | je fp_qword_store |
||
1737 | mov bx,[esi+8] |
||
1738 | mov eax,[esi] |
||
1739 | mov edx,[esi+4] |
||
1740 | add eax,eax |
||
1741 | adc edx,edx |
||
1742 | mov ecx,edx |
||
1743 | shr edx,12 |
||
1744 | shrd eax,ecx,12 |
||
1745 | jnc fp_qword_ok |
||
1746 | add eax,1 |
||
1747 | adc edx,0 |
||
1748 | bt edx,20 |
||
1749 | jnc fp_qword_ok |
||
1750 | and edx,1 shl 20 - 1 |
||
1751 | inc bx |
||
1752 | shr edx,1 |
||
1753 | rcr eax,1 |
||
1754 | fp_qword_ok: |
||
31 | halyavin | 1755 | add bx,3FFh |
157 | heavyiron | 1756 | cmp bx,800h |
1757 | jae value_out_of_range |
||
1758 | shl ebx,20 |
||
1759 | or edx,ebx |
||
1760 | fp_qword_store: |
||
31 | halyavin | 1761 | mov bl,[esi+11] |
157 | heavyiron | 1762 | shl ebx,31 |
1763 | or edx,ebx |
||
1764 | mov [edi],eax |
||
1765 | mov [edi+4],edx |
||
1766 | add esi,13 |
||
1767 | ret |
||
1768 | get_string_value: |
||
31 | halyavin | 1769 | inc esi |
157 | heavyiron | 1770 | lods dword [esi] |
1771 | mov ecx,eax |
||
1772 | cmp ecx,8 |
||
1773 | ja value_out_of_range |
||
1774 | mov edx,edi |
||
1775 | xor eax,eax |
||
1776 | stos dword [edi] |
||
1777 | stos dword [edi] |
||
1778 | mov edi,edx |
||
1779 | rep movs byte [edi],[esi] |
||
1780 | mov edi,edx |
||
1781 | inc esi |
||
1782 | mov word [edi+8],0 |
||
1783 | mov byte [edi+12],0 |
||
1784 | ret |
||
1785 | |||
31 | halyavin | 1786 | |
1787 | mov [value_size],1 |
||
157 | heavyiron | 1788 | mov [size_override],-1 |
1789 | call calculate_expression |
||
1790 | mov eax,[edi+16] |
||
1791 | mov [symbol_identifier],eax |
||
1792 | mov [value_type],0 |
||
1793 | cmp word [edi+8],0 |
||
1794 | jne invalid_value |
||
1795 | cmp byte [edi+12],0 |
||
1796 | je check_byte_value |
||
1797 | cmp [error_line],0 |
||
1798 | jne check_byte_value |
||
1799 | mov eax,[current_line] |
||
1800 | mov [error_line],eax |
||
1801 | mov [error],invalid_use_of_symbol |
||
1802 | check_byte_value: |
||
31 | halyavin | 1803 | mov eax,[edi] |
157 | heavyiron | 1804 | mov edx,[edi+4] |
1805 | or edx,edx |
||
1806 | jz byte_positive |
||
1807 | cmp edx,-1 |
||
1808 | jne range_exceeded |
||
1809 | cmp eax,-80h |
||
1810 | jb range_exceeded |
||
1811 | ret |
||
1812 | byte_positive: |
||
31 | halyavin | 1813 | cmp eax,100h |
157 | heavyiron | 1814 | jae range_exceeded |
1815 | return_byte_value: |
||
31 | halyavin | 1816 | ret |
157 | heavyiron | 1817 | range_exceeded: |
31 | halyavin | 1818 | xor eax,eax |
157 | heavyiron | 1819 | xor edx,edx |
1820 | cmp [error_line],0 |
||
1821 | jne return_byte_value |
||
1822 | mov ecx,[current_line] |
||
1823 | mov [error_line],ecx |
||
1824 | mov [error],value_out_of_range |
||
1825 | ret |
||
1826 | get_word_value: |
||
31 | halyavin | 1827 | mov [value_size],2 |
157 | heavyiron | 1828 | mov [size_override],-1 |
1829 | call calculate_expression |
||
1830 | mov eax,[edi+16] |
||
1831 | mov [symbol_identifier],eax |
||
1832 | cmp word [edi+8],0 |
||
1833 | jne invalid_value |
||
1834 | mov al,[edi+12] |
||
1835 | mov [value_type],al |
||
1836 | cmp al,2 |
||
1837 | jb check_word_value |
||
1838 | cmp [error_line],0 |
||
1839 | jne check_word_value |
||
1840 | mov eax,[current_line] |
||
1841 | mov [error_line],eax |
||
1842 | mov [error],invalid_use_of_symbol |
||
1843 | check_word_value: |
||
31 | halyavin | 1844 | mov eax,[edi] |
157 | heavyiron | 1845 | mov edx,[edi+4] |
1846 | or edx,edx |
||
1847 | jz word_positive |
||
1848 | cmp edx,-1 |
||
1849 | jne range_exceeded |
||
1850 | cmp eax,-8000h |
||
1851 | jb range_exceeded |
||
1852 | ret |
||
1853 | word_positive: |
||
31 | halyavin | 1854 | cmp eax,10000h |
157 | heavyiron | 1855 | jae range_exceeded |
1856 | ret |
||
1857 | get_dword_value: |
||
31 | halyavin | 1858 | mov [value_size],4 |
157 | heavyiron | 1859 | mov [size_override],-1 |
1860 | call calculate_expression |
||
1861 | mov eax,[edi+16] |
||
1862 | mov [symbol_identifier],eax |
||
1863 | cmp word [edi+8],0 |
||
1864 | jne invalid_value |
||
1865 | mov al,[edi+12] |
||
1866 | mov [value_type],al |
||
1867 | cmp al,4 |
||
1868 | jne check_dword_value |
||
1869 | mov [value_type],2 |
||
1870 | mov eax,[edi] |
||
1871 | cdq |
||
1872 | cmp edx,[edi+4] |
||
1873 | jne range_exceeded |
||
1874 | ret |
||
1875 | check_dword_value: |
||
31 | halyavin | 1876 | mov eax,[edi] |
157 | heavyiron | 1877 | mov edx,[edi+4] |
1878 | or edx,edx |
||
1879 | jz dword_positive |
||
1880 | cmp edx,-1 |
||
1881 | jne range_exceeded |
||
1882 | bt eax,31 |
||
1883 | jnc range_exceeded |
||
1884 | dword_positive: |
||
31 | halyavin | 1885 | ret |
157 | heavyiron | 1886 | get_pword_value: |
31 | halyavin | 1887 | mov [value_size],6 |
157 | heavyiron | 1888 | mov [size_override],-1 |
1889 | call calculate_expression |
||
1890 | mov eax,[edi+16] |
||
1891 | mov [symbol_identifier],eax |
||
1892 | cmp word [edi+8],0 |
||
1893 | jne invalid_value |
||
1894 | mov al,[edi+12] |
||
1895 | mov [value_type],al |
||
1896 | cmp al,4 |
||
1897 | jne check_pword_value |
||
1898 | cmp [error_line],0 |
||
1899 | jne check_pword_value |
||
1900 | mov eax,[current_line] |
||
1901 | mov [error_line],eax |
||
1902 | mov [error],invalid_use_of_symbol |
||
1903 | check_pword_value: |
||
31 | halyavin | 1904 | mov eax,[edi] |
157 | heavyiron | 1905 | mov edx,[edi+4] |
1906 | cmp edx,10000h |
||
1907 | jge range_exceeded |
||
1908 | cmp edx,-8000h |
||
1909 | jl range_exceeded |
||
1910 | ret |
||
1911 | get_qword_value: |
||
31 | halyavin | 1912 | mov [value_size],8 |
157 | heavyiron | 1913 | mov [size_override],-1 |
1914 | call calculate_expression |
||
1915 | mov eax,[edi+16] |
||
1916 | mov [symbol_identifier],eax |
||
1917 | cmp word [edi+8],0 |
||
1918 | jne invalid_value |
||
1919 | mov al,[edi+12] |
||
1920 | mov [value_type],al |
||
1921 | check_qword_value: |
||
31 | halyavin | 1922 | mov eax,[edi] |
157 | heavyiron | 1923 | mov edx,[edi+4] |
1924 | ret |
||
1925 | get_value: |
||
31 | halyavin | 1926 | mov [operand_size],0 |
157 | heavyiron | 1927 | lods byte [esi] |
1928 | call get_size_operator |
||
1929 | cmp al,'(' |
||
1930 | jne invalid_value |
||
1931 | mov al,[operand_size] |
||
1932 | cmp al,1 |
||
1933 | je value_byte |
||
1934 | cmp al,2 |
||
1935 | je value_word |
||
1936 | cmp al,4 |
||
1937 | je value_dword |
||
1938 | cmp al,6 |
||
1939 | je value_pword |
||
1940 | cmp al,8 |
||
1941 | je value_qword |
||
1942 | or al,al |
||
1943 | jnz invalid_value |
||
1944 | value_qword: |
||
31 | halyavin | 1945 | call get_qword_value |
157 | heavyiron | 1946 | ret |
1947 | value_pword: |
||
31 | halyavin | 1948 | call get_pword_value |
157 | heavyiron | 1949 | movzx edx,dx |
1950 | ret |
||
1951 | value_dword: |
||
31 | halyavin | 1952 | call get_dword_value |
157 | heavyiron | 1953 | xor edx,edx |
1954 | ret |
||
1955 | value_word: |
||
31 | halyavin | 1956 | call get_word_value |
157 | heavyiron | 1957 | xor edx,edx |
1958 | movzx eax,ax |
||
1959 | ret |
||
1960 | value_byte: |
||
31 | halyavin | 1961 | call get_byte_value |
157 | heavyiron | 1962 | xor edx,edx |
1963 | movzx eax,al |
||
1964 | ret |
||
1965 | get_address_value: |
||
31 | halyavin | 1966 | mov [address_size],0 |
157 | heavyiron | 1967 | mov [value_size],8 |
1968 | calculate_address: |
||
31 | halyavin | 1969 | cmp byte [esi],'.' |
157 | heavyiron | 1970 | je invalid_address |
1971 | call calculate_expression |
||
1972 | mov eax,[edi+16] |
||
1973 | mov [address_symbol],eax |
||
1974 | mov al,[edi+12] |
||
1975 | mov [value_type],al |
||
1976 | cmp al,5 |
||
1977 | je gotoff_address |
||
1978 | ja invalid_use_of_symbol |
||
174 | heavyiron | 1979 | test al,1 |
157 | heavyiron | 1980 | jnz invalid_use_of_symbol |
1981 | or al,al |
||
1982 | jz address_size_ok |
||
1983 | shl al,5 |
||
1984 | jmp address_symbol_ok |
||
1985 | gotoff_address: |
||
109 | heavyiron | 1986 | mov al,40h |
157 | heavyiron | 1987 | address_symbol_ok: |
31 | halyavin | 1988 | mov ah,[address_size] |
157 | heavyiron | 1989 | or [address_size],al |
1990 | shr al,4 |
||
1991 | or ah,ah |
||
1992 | jz address_size_ok |
||
1993 | cmp al,ah |
||
1994 | je address_size_ok |
||
1995 | cmp ax,0408h |
||
1996 | jne address_sizes_do_not_agree |
||
1997 | mov [value_type],2 |
||
1998 | mov eax,[edi] |
||
1999 | cdq |
||
2000 | cmp edx,[edi+4] |
||
2001 | je address_size_ok |
||
2002 | cmp [error_line],0 |
||
2003 | jne address_size_ok |
||
2004 | mov ecx,[current_line] |
||
2005 | mov [error_line],ecx |
||
2006 | mov [error],value_out_of_range |
||
2007 | address_size_ok: |
||
109 | heavyiron | 2008 | xor ebx,ebx |
174 | heavyiron | 2009 | xor ecx,ecx |
2010 | mov cl,[value_type] |
||
2011 | shl ecx,16 |
||
2012 | mov ch,[address_size] |
||
157 | heavyiron | 2013 | cmp word [edi+8],0 |
2014 | je check_immediate_address |
||
2015 | mov al,[edi+8] |
||
2016 | mov dl,[edi+10] |
||
2017 | call get_address_register |
||
2018 | mov al,[edi+9] |
||
2019 | mov dl,[edi+11] |
||
2020 | call get_address_register |
||
2021 | mov ax,bx |
||
2022 | shr ah,4 |
||
2023 | shr al,4 |
||
2024 | or bh,bh |
||
2025 | jz check_address_registers |
||
2026 | or bl,bl |
||
2027 | jz check_address_registers |
||
2028 | cmp al,ah |
||
2029 | jne invalid_address |
||
2030 | check_address_registers: |
||
31 | halyavin | 2031 | or al,ah |
157 | heavyiron | 2032 | mov ah,[address_size] |
2033 | and ah,0Fh |
||
2034 | jz address_registers_sizes_ok |
||
2035 | cmp al,ah |
||
2036 | jne invalid_address |
||
2037 | address_registers_sizes_ok: |
||
2038 | cmp al,4 |
||
2039 | je sib_allowed |
||
2040 | cmp al,8 |
||
2041 | je sib_allowed |
||
2042 | or cl,cl |
||
2043 | jz check_word_value |
||
2044 | cmp cl,1 |
||
2045 | je check_word_value |
||
2046 | jmp invalid_address |
||
2047 | get_address_register: |
||
31 | halyavin | 2048 | or al,al |
157 | heavyiron | 2049 | jz address_register_ok |
2050 | cmp dl,1 |
||
2051 | jne scaled_register |
||
2052 | or bh,bh |
||
2053 | jnz scaled_register |
||
2054 | mov bh,al |
||
2055 | address_register_ok: |
||
31 | halyavin | 2056 | ret |
157 | heavyiron | 2057 | scaled_register: |
31 | halyavin | 2058 | or bl,bl |
157 | heavyiron | 2059 | jnz invalid_address |
2060 | mov bl,al |
||
2061 | mov cl,dl |
||
2062 | jmp address_register_ok |
||
2063 | sib_allowed: |
||
31 | halyavin | 2064 | or bh,bh |
157 | heavyiron | 2065 | jnz check_index_scale |
2066 | cmp cl,2 |
||
2067 | je special_index_scale |
||
2068 | cmp cl,3 |
||
2069 | je special_index_scale |
||
2070 | cmp cl,5 |
||
2071 | je special_index_scale |
||
2072 | cmp cl,9 |
||
2073 | je special_index_scale |
||
2074 | check_index_scale: |
||
31 | halyavin | 2075 | or cl,cl |
157 | heavyiron | 2076 | jz address_registers_ok |
2077 | cmp cl,1 |
||
2078 | je address_registers_ok |
||
2079 | cmp cl,2 |
||
2080 | je address_registers_ok |
||
2081 | cmp cl,4 |
||
2082 | je address_registers_ok |
||
2083 | cmp cl,8 |
||
2084 | je address_registers_ok |
||
2085 | jmp invalid_address |
||
2086 | special_index_scale: |
||
31 | halyavin | 2087 | mov bh,bl |
157 | heavyiron | 2088 | dec cl |
2089 | address_registers_ok: |
||
31 | halyavin | 2090 | jmp check_dword_value |
157 | heavyiron | 2091 | check_immediate_address: |
31 | halyavin | 2092 | cmp [code_type],64 |
157 | heavyiron | 2093 | jne check_dword_value |
2094 | cmp [address_size],4 |
||
2095 | je check_dword_value |
||
2096 | jmp check_qword_value |
||
2097 | calculate_relative_offset: |
||
174 | heavyiron | 2098 | cmp [value_undefined],0 |
2099 | jne relative_offset_ok |
||
2100 | add eax,dword [org_origin] |
||
2101 | adc edx,dword [org_origin+4] |
||
2102 | sub eax,edi |
||
2103 | sbb edx,0 |
||
2104 | mov bl,[value_type] |
||
2105 | or bl,bl |
||
2106 | je relative_offset_ok |
||
2107 | test bl,1 |
||
2108 | jnz invalid_use_of_symbol |
||
2109 | cmp bl,6 |
||
2110 | je plt_relative_offset |
||
2111 | cmp bl,[labels_type] |
||
2112 | jne invalid_use_of_symbol |
||
2113 | mov [value_type],0 |
||
2114 | mov ecx,[symbol_identifier] |
||
2115 | cmp ecx,[org_symbol] |
||
2116 | je relative_offset_ok |
||
2117 | mov [value_type],3 |
||
2118 | relative_offset_ok: |
||
2119 | ret |
||
157 | heavyiron | 2120 | plt_relative_offset: |
174 | heavyiron | 2121 | mov [value_type],7 |
2122 | ret |
||
157 | heavyiron | 2123 | |
31 | halyavin | 2124 | |
109 | heavyiron | 2125 | push edi |
157 | heavyiron | 2126 | call preevaluate_logical_value |
2127 | preevaluation_loop: |
||
109 | heavyiron | 2128 | cmp al,0FFh |
157 | heavyiron | 2129 | je invalid_logical_expression |
2130 | mov dl,[esi] |
||
2131 | inc esi |
||
2132 | cmp dl,'|' |
||
2133 | je preevaluate_or |
||
2134 | cmp dl,'&' |
||
2135 | je preevaluate_and |
||
2136 | cmp dl,'}' |
||
2137 | je preevaluation_done |
||
2138 | or dl,dl |
||
2139 | jnz invalid_logical_expression |
||
2140 | preevaluation_done: |
||
109 | heavyiron | 2141 | pop edx |
157 | heavyiron | 2142 | dec esi |
2143 | ret |
||
2144 | preevaluate_or: |
||
109 | heavyiron | 2145 | cmp al,'1' |
157 | heavyiron | 2146 | je quick_true |
2147 | cmp al,'0' |
||
2148 | je leave_only_following |
||
2149 | push edi |
||
2150 | mov al,dl |
||
2151 | stos byte [edi] |
||
2152 | call preevaluate_logical_value |
||
2153 | pop ebx |
||
2154 | cmp al,'0' |
||
2155 | je leave_only_preceding |
||
2156 | cmp al,'1' |
||
2157 | jne preevaluation_loop |
||
2158 | stos byte [edi] |
||
2159 | xor al,al |
||
2160 | jmp preevaluation_loop |
||
2161 | preevaluate_and: |
||
109 | heavyiron | 2162 | cmp al,'0' |
157 | heavyiron | 2163 | je quick_false |
2164 | cmp al,'1' |
||
2165 | je leave_only_following |
||
2166 | push edi |
||
2167 | mov al,dl |
||
2168 | stos byte [edi] |
||
2169 | call preevaluate_logical_value |
||
2170 | pop ebx |
||
2171 | cmp al,'1' |
||
2172 | je leave_only_preceding |
||
2173 | cmp al,'0' |
||
2174 | jne preevaluation_loop |
||
2175 | stos byte [edi] |
||
2176 | xor al,al |
||
2177 | jmp preevaluation_loop |
||
2178 | leave_only_following: |
||
109 | heavyiron | 2179 | mov edi,[esp] |
157 | heavyiron | 2180 | call preevaluate_logical_value |
2181 | jmp preevaluation_loop |
||
2182 | leave_only_preceding: |
||
109 | heavyiron | 2183 | mov edi,ebx |
157 | heavyiron | 2184 | xor al,al |
2185 | jmp preevaluation_loop |
||
2186 | quick_true: |
||
109 | heavyiron | 2187 | call skip_logical_value |
157 | heavyiron | 2188 | jc invalid_logical_expression |
2189 | mov edi,[esp] |
||
2190 | mov al,'1' |
||
2191 | jmp preevaluation_loop |
||
2192 | quick_false: |
||
109 | heavyiron | 2193 | call skip_logical_value |
157 | heavyiron | 2194 | jc invalid_logical_expression |
2195 | mov edi,[esp] |
||
2196 | mov al,'0' |
||
2197 | jmp preevaluation_loop |
||
2198 | invalid_logical_expression: |
||
109 | heavyiron | 2199 | pop edi |
157 | heavyiron | 2200 | mov esi,edi |
2201 | mov al,0FFh |
||
2202 | stos byte [edi] |
||
2203 | ret |
||
2204 | skip_logical_value: |
||
109 | heavyiron | 2205 | cmp byte [esi],'~' |
157 | heavyiron | 2206 | jne negation_skipped |
2207 | inc esi |
||
2208 | jmp skip_logical_value |
||
2209 | negation_skipped: |
||
109 | heavyiron | 2210 | cmp byte [esi],'{' |
157 | heavyiron | 2211 | jne skip_simple_logical_value |
2212 | inc esi |
||
2213 | skip_logical_expression: |
||
109 | heavyiron | 2214 | call skip_logical_value |
157 | heavyiron | 2215 | lods byte [esi] |
2216 | or al,al |
||
2217 | jz wrongly_structured_logical_expression |
||
2218 | cmp al,0Fh |
||
2219 | je wrongly_structured_logical_expression |
||
2220 | cmp al,'|' |
||
2221 | je skip_logical_expression |
||
2222 | cmp al,'&' |
||
2223 | je skip_logical_expression |
||
2224 | cmp al,'}' |
||
2225 | je logical_value_skipped |
||
2226 | wrongly_structured_logical_expression: |
||
109 | heavyiron | 2227 | stc |
157 | heavyiron | 2228 | ret |
2229 | skip_simple_logical_value: |
||
109 | heavyiron | 2230 | mov al,[esi] |
157 | heavyiron | 2231 | or al,al |
2232 | jz logical_value_skipped |
||
2233 | cmp al,0Fh |
||
2234 | je logical_value_skipped |
||
2235 | cmp al,'}' |
||
2236 | je logical_value_skipped |
||
2237 | cmp al,'|' |
||
2238 | je logical_value_skipped |
||
2239 | cmp al,'&' |
||
2240 | je logical_value_skipped |
||
2241 | call skip_symbol |
||
2242 | jmp skip_simple_logical_value |
||
2243 | logical_value_skipped: |
||
109 | heavyiron | 2244 | clc |
157 | heavyiron | 2245 | ret |
2246 | |||
31 | halyavin | 2247 | |
109 | heavyiron | 2248 | mov ebp,edi |
157 | heavyiron | 2249 | preevaluate_negation: |
109 | heavyiron | 2250 | cmp byte [esi],'~' |
157 | heavyiron | 2251 | jne preevaluate_negation_ok |
2252 | movs byte [edi],[esi] |
||
2253 | jmp preevaluate_negation |
||
2254 | preevaluate_negation_ok: |
||
109 | heavyiron | 2255 | mov ebx,esi |
157 | heavyiron | 2256 | xor edx,edx |
2257 | cmp byte [esi],'{' |
||
2258 | jne find_logical_value_boundaries |
||
2259 | movs byte [edi],[esi] |
||
2260 | push ebp |
||
2261 | call preevaluate_logical_expression |
||
2262 | pop ebp |
||
2263 | cmp al,0FFh |
||
2264 | je invalid_logical_value |
||
2265 | cmp byte [esi],'}' |
||
2266 | jne invalid_logical_value |
||
2267 | or al,al |
||
2268 | jnz preevaluated_expression_value |
||
2269 | movs byte [edi],[esi] |
||
2270 | ret |
||
2271 | preevaluated_expression_value: |
||
109 | heavyiron | 2272 | inc esi |
157 | heavyiron | 2273 | lea edx,[edi-1] |
2274 | sub edx,ebp |
||
2275 | test edx,1 |
||
2276 | jz expression_negation_ok |
||
2277 | xor al,1 |
||
2278 | expression_negation_ok: |
||
109 | heavyiron | 2279 | mov edi,ebp |
157 | heavyiron | 2280 | ret |
2281 | invalid_logical_value: |
||
109 | heavyiron | 2282 | mov edi,ebp |
157 | heavyiron | 2283 | mov al,0FFh |
2284 | ret |
||
2285 | find_logical_value_boundaries: |
||
109 | heavyiron | 2286 | mov al,[esi] |
157 | heavyiron | 2287 | or al,al |
2288 | jz logical_value_boundaries_found |
||
2289 | cmp al,'}' |
||
2290 | je logical_value_boundaries_found |
||
2291 | cmp al,'|' |
||
2292 | je logical_value_boundaries_found |
||
2293 | cmp al,'&' |
||
2294 | je logical_value_boundaries_found |
||
2295 | or edx,edx |
||
2296 | jnz next_symbol_in_logical_value |
||
2297 | cmp al,0F0h |
||
2298 | je preevaluable_logical_operator |
||
2299 | cmp al,0F7h |
||
2300 | je preevaluable_logical_operator |
||
2301 | cmp al,0F6h |
||
2302 | jne next_symbol_in_logical_value |
||
2303 | preevaluable_logical_operator: |
||
109 | heavyiron | 2304 | mov edx,esi |
157 | heavyiron | 2305 | next_symbol_in_logical_value: |
109 | heavyiron | 2306 | call skip_symbol |
157 | heavyiron | 2307 | jmp find_logical_value_boundaries |
2308 | logical_value_boundaries_found: |
||
109 | heavyiron | 2309 | or edx,edx |
157 | heavyiron | 2310 | jz non_preevaluable_logical_value |
2311 | mov al,[edx] |
||
2312 | cmp al,0F0h |
||
2313 | je compare_symbols |
||
2314 | cmp al,0F7h |
||
2315 | je compare_symbol_types |
||
2316 | cmp al,0F6h |
||
2317 | je scan_symbols_list |
||
2318 | non_preevaluable_logical_value: |
||
109 | heavyiron | 2319 | mov ecx,esi |
157 | heavyiron | 2320 | mov esi,ebx |
2321 | sub ecx,esi |
||
2322 | jz invalid_logical_value |
||
2323 | cmp esi,edi |
||
2324 | je leave_logical_value_intact |
||
2325 | rep movs byte [edi],[esi] |
||
2326 | xor al,al |
||
2327 | ret |
||
2328 | leave_logical_value_intact: |
||
109 | heavyiron | 2329 | add edi,ecx |
157 | heavyiron | 2330 | add esi,ecx |
2331 | xor al,al |
||
2332 | ret |
||
2333 | compare_symbols: |
||
31 | halyavin | 2334 | lea ecx,[esi-1] |
157 | heavyiron | 2335 | sub ecx,edx |
2336 | mov eax,edx |
||
2337 | sub eax,ebx |
||
2338 | cmp ecx,eax |
||
2339 | jne preevaluated_false |
||
2340 | push esi edi |
||
2341 | mov esi,ebx |
||
2342 | lea edi,[edx+1] |
||
2343 | repe cmps byte [esi],[edi] |
||
2344 | pop edi esi |
||
2345 | je preevaluated_true |
||
2346 | preevaluated_false: |
||
109 | heavyiron | 2347 | mov eax,edi |
157 | heavyiron | 2348 | sub eax,ebp |
2349 | test eax,1 |
||
2350 | jnz store_true |
||
2351 | store_false: |
||
109 | heavyiron | 2352 | mov edi,ebp |
157 | heavyiron | 2353 | mov al,'0' |
2354 | ret |
||
2355 | preevaluated_true: |
||
109 | heavyiron | 2356 | mov eax,edi |
157 | heavyiron | 2357 | sub eax,ebp |
2358 | test eax,1 |
||
2359 | jnz store_false |
||
2360 | store_true: |
||
109 | heavyiron | 2361 | mov edi,ebp |
157 | heavyiron | 2362 | mov al,'1' |
2363 | ret |
||
2364 | compare_symbol_types: |
||
31 | halyavin | 2365 | push esi |
157 | heavyiron | 2366 | lea esi,[edx+1] |
2367 | type_comparison: |
||
109 | heavyiron | 2368 | cmp esi,[esp] |
157 | heavyiron | 2369 | je types_compared |
2370 | mov al,[esi] |
||
2371 | cmp al,[ebx] |
||
2372 | jne different_type |
||
2373 | cmp al,'(' |
||
2374 | jne equal_type |
||
2375 | mov al,[esi+1] |
||
2376 | mov ah,[ebx+1] |
||
2377 | cmp al,ah |
||
2378 | je equal_type |
||
2379 | or al,al |
||
2380 | jz different_type |
||
2381 | or ah,ah |
||
2382 | jz different_type |
||
2383 | cmp al,'.' |
||
2384 | je different_type |
||
2385 | cmp ah,'.' |
||
2386 | je different_type |
||
2387 | equal_type: |
||
31 | halyavin | 2388 | call skip_symbol |
157 | heavyiron | 2389 | xchg esi,ebx |
2390 | call skip_symbol |
||
2391 | xchg esi,ebx |
||
2392 | jmp type_comparison |
||
2393 | types_compared: |
||
31 | halyavin | 2394 | pop esi |
157 | heavyiron | 2395 | cmp byte [ebx],0F7h |
2396 | jne preevaluated_false |
||
2397 | jmp preevaluated_true |
||
2398 | different_type: |
||
109 | heavyiron | 2399 | pop esi |
157 | heavyiron | 2400 | jmp preevaluated_false |
2401 | scan_symbols_list: |
||
31 | halyavin | 2402 | push edi esi |
157 | heavyiron | 2403 | lea esi,[edx+1] |
2404 | sub edx,ebx |
||
2405 | lods byte [esi] |
||
2406 | cmp al,'<' |
||
2407 | jne invalid_symbols_list |
||
2408 | get_next_from_list: |
||
109 | heavyiron | 2409 | mov edi,esi |
157 | heavyiron | 2410 | get_from_list: |
109 | heavyiron | 2411 | cmp byte [esi],',' |
157 | heavyiron | 2412 | je compare_in_list |
2413 | cmp byte [esi],'>' |
||
2414 | je compare_in_list |
||
2415 | cmp esi,[esp] |
||
2416 | jae invalid_symbols_list |
||
2417 | call skip_symbol |
||
2418 | jmp get_from_list |
||
2419 | compare_in_list: |
||
31 | halyavin | 2420 | mov ecx,esi |
157 | heavyiron | 2421 | sub ecx,edi |
2422 | cmp ecx,edx |
||
2423 | jne not_equal_length_in_list |
||
2424 | mov esi,ebx |
||
2425 | repe cmps byte [esi],[edi] |
||
2426 | mov esi,edi |
||
2427 | jne not_equal_in_list |
||
2428 | skip_rest_of_list: |
||
31 | halyavin | 2429 | cmp byte [esi],'>' |
157 | heavyiron | 2430 | je check_list_end |
2431 | cmp esi,[esp] |
||
2432 | jae invalid_symbols_list |
||
2433 | call skip_symbol |
||
2434 | jmp skip_rest_of_list |
||
2435 | check_list_end: |
||
109 | heavyiron | 2436 | inc esi |
157 | heavyiron | 2437 | cmp esi,[esp] |
2438 | jne invalid_symbols_list |
||
2439 | pop esi edi |
||
2440 | jmp preevaluated_true |
||
2441 | not_equal_in_list: |
||
31 | halyavin | 2442 | add esi,ecx |
157 | heavyiron | 2443 | not_equal_length_in_list: |
109 | heavyiron | 2444 | lods byte [esi] |
157 | heavyiron | 2445 | cmp al,',' |
2446 | je get_next_from_list |
||
2447 | cmp esi,[esp] |
||
2448 | jne invalid_symbols_list |
||
2449 | pop esi edi |
||
2450 | jmp preevaluated_false |
||
2451 | invalid_symbols_list: |
||
109 | heavyiron | 2452 | pop esi edi |
157 | heavyiron | 2453 | jmp invalid_logical_value |
2454 | |||
109 | heavyiron | 2455 | |
2456 | call get_logical_value |
||
157 | heavyiron | 2457 | logical_loop: |
109 | heavyiron | 2458 | cmp byte [esi],'|' |
157 | heavyiron | 2459 | je logical_or |
2460 | cmp byte [esi],'&' |
||
2461 | je logical_and |
||
2462 | ret |
||
2463 | logical_or: |
||
109 | heavyiron | 2464 | inc esi |
157 | heavyiron | 2465 | or al,al |
2466 | jnz logical_value_already_determined |
||
2467 | push eax |
||
2468 | call get_logical_value |
||
2469 | pop ebx |
||
2470 | or al,bl |
||
2471 | jmp logical_loop |
||
2472 | logical_and: |
||
109 | heavyiron | 2473 | inc esi |
157 | heavyiron | 2474 | or al,al |
2475 | jz logical_value_already_determined |
||
2476 | push eax |
||
2477 | call get_logical_value |
||
2478 | pop ebx |
||
2479 | and al,bl |
||
2480 | jmp logical_loop |
||
2481 | logical_value_already_determined: |
||
109 | heavyiron | 2482 | push eax |
157 | heavyiron | 2483 | call skip_logical_value |
2484 | jc invalid_expression |
||
2485 | pop eax |
||
2486 | jmp logical_loop |
||
2487 | get_logical_value: |
||
109 | heavyiron | 2488 | xor al,al |
157 | heavyiron | 2489 | check_for_negation: |
109 | heavyiron | 2490 | cmp byte [esi],'~' |
157 | heavyiron | 2491 | jne negation_ok |
2492 | inc esi |
||
2493 | xor al,-1 |
||
2494 | jmp check_for_negation |
||
2495 | negation_ok: |
||
109 | heavyiron | 2496 | push eax |
157 | heavyiron | 2497 | mov al,[esi] |
2498 | cmp al,'{' |
||
2499 | je logical_expression |
||
2500 | cmp al,0FFh |
||
2501 | je invalid_expression |
||
2502 | cmp al,88h |
||
2503 | je check_for_defined |
||
2504 | cmp al,89h |
||
2505 | je check_for_used |
||
2506 | cmp al,'0' |
||
2507 | je given_false |
||
2508 | cmp al,'1' |
||
2509 | je given_true |
||
2510 | call get_value |
||
2511 | mov bl,[value_type] |
||
2512 | push eax edx ebx |
||
2513 | mov al,[esi] |
||
2514 | or al,al |
||
2515 | jz logical_number |
||
2516 | cmp al,0Fh |
||
2517 | je logical_number |
||
2518 | cmp al,'}' |
||
2519 | je logical_number |
||
2520 | cmp al,'&' |
||
2521 | je logical_number |
||
2522 | cmp al,'|' |
||
2523 | je logical_number |
||
2524 | inc esi |
||
2525 | mov [compare_type],al |
||
2526 | call get_value |
||
2527 | pop ebx |
||
2528 | cmp [next_pass_needed],0 |
||
2529 | jne values_ok |
||
2530 | cmp bl,[value_type] |
||
2531 | jne invalid_use_of_symbol |
||
2532 | values_ok: |
||
31 | halyavin | 2533 | pop ecx ebx |
157 | heavyiron | 2534 | cmp [compare_type],'=' |
2535 | je check_equal |
||
2536 | cmp [compare_type],'>' |
||
2537 | je check_greater |
||
2538 | cmp [compare_type],'<' |
||
2539 | je check_less |
||
2540 | cmp [compare_type],0F1h |
||
2541 | je check_not_equal |
||
2542 | cmp [compare_type],0F2h |
||
2543 | je check_not_less |
||
2544 | cmp [compare_type],0F3h |
||
2545 | je check_not_greater |
||
2546 | jmp invalid_expression |
||
2547 | check_equal: |
||
31 | halyavin | 2548 | cmp eax,ebx |
157 | heavyiron | 2549 | jne return_false |
2550 | cmp edx,ecx |
||
2551 | jne return_false |
||
2552 | jmp return_true |
||
2553 | check_greater: |
||
31 | halyavin | 2554 | cmp edx,ecx |
157 | heavyiron | 2555 | jl return_true |
2556 | jg return_false |
||
2557 | cmp eax,ebx |
||
2558 | jb return_true |
||
2559 | jae return_false |
||
2560 | check_less: |
||
31 | halyavin | 2561 | cmp edx,ecx |
157 | heavyiron | 2562 | jl return_false |
2563 | jg return_true |
||
2564 | cmp eax,ebx |
||
2565 | jbe return_false |
||
2566 | ja return_true |
||
2567 | check_not_less: |
||
31 | halyavin | 2568 | cmp edx,ecx |
157 | heavyiron | 2569 | jl return_true |
2570 | jg return_false |
||
2571 | cmp eax,ebx |
||
2572 | jbe return_true |
||
2573 | ja return_false |
||
2574 | check_not_greater: |
||
31 | halyavin | 2575 | cmp edx,ecx |
157 | heavyiron | 2576 | jl return_false |
2577 | jg return_true |
||
2578 | cmp eax,ebx |
||
2579 | jb return_false |
||
2580 | jae return_true |
||
2581 | check_not_equal: |
||
31 | halyavin | 2582 | cmp eax,ebx |
157 | heavyiron | 2583 | jne return_true |
2584 | cmp edx,ecx |
||
2585 | jne return_true |
||
2586 | jmp return_false |
||
2587 | logical_number: |
||
31 | halyavin | 2588 | pop ebx edx eax |
157 | heavyiron | 2589 | or bl,bl |
2590 | jnz invalid_expression |
||
2591 | or eax,edx |
||
2592 | jnz return_true |
||
2593 | jmp return_false |
||
2594 | check_for_defined: |
||
31 | halyavin | 2595 | or bl,-1 |
157 | heavyiron | 2596 | lods word [esi] |
2597 | cmp ah,'(' |
||
2598 | jne invalid_expression |
||
2599 | check_expression: |
||
31 | halyavin | 2600 | lods byte [esi] |
157 | heavyiron | 2601 | or al,al |
2602 | jz defined_string |
||
2603 | cmp al,'.' |
||
2604 | je defined_fp_value |
||
2605 | cmp al,')' |
||
2606 | je expression_checked |
||
2607 | cmp al,0Fh |
||
2608 | je check_expression |
||
2609 | cmp al,10h |
||
2610 | je defined_register |
||
2611 | cmp al,11h |
||
2612 | je check_if_symbol_defined |
||
2613 | cmp al,80h |
||
2614 | jae check_expression |
||
2615 | movzx eax,al |
||
2616 | add esi,eax |
||
2617 | jmp check_expression |
||
2618 | defined_register: |
||
31 | halyavin | 2619 | inc esi |
157 | heavyiron | 2620 | jmp check_expression |
2621 | defined_fp_value: |
||
31 | halyavin | 2622 | add esi,12 |
157 | heavyiron | 2623 | jmp expression_checked |
2624 | defined_string: |
||
31 | halyavin | 2625 | lods dword [esi] |
157 | heavyiron | 2626 | add esi,eax |
2627 | inc esi |
||
2628 | jmp expression_checked |
||
2629 | check_if_symbol_defined: |
||
31 | halyavin | 2630 | lods dword [esi] |
157 | heavyiron | 2631 | cmp eax,-1 |
2632 | je invalid_expression |
||
2633 | cmp eax,0Fh |
||
2634 | jb check_expression |
||
2635 | je reserved_word_used_as_symbol |
||
2636 | test byte [eax+8],4 |
||
2637 | jnz no_prediction |
||
2638 | test byte [eax+8],1 |
||
2639 | jz symbol_predicted_undefined |
||
2640 | mov cx,[current_pass] |
||
2641 | sub cx,[eax+16] |
||
2642 | jz check_expression |
||
2643 | cmp cx,1 |
||
2644 | ja symbol_predicted_undefined |
||
2645 | or byte [eax+8],40h+80h |
||
2646 | jmp check_expression |
||
2647 | no_prediction: |
||
31 | halyavin | 2648 | test byte [eax+8],1 |
157 | heavyiron | 2649 | jz symbol_undefined |
2650 | mov cx,[current_pass] |
||
2651 | sub cx,[eax+16] |
||
2652 | jz check_expression |
||
2653 | jmp symbol_undefined |
||
2654 | symbol_predicted_undefined: |
||
31 | halyavin | 2655 | or byte [eax+8],40h |
157 | heavyiron | 2656 | and byte [eax+8],not 80h |
2657 | symbol_undefined: |
||
31 | halyavin | 2658 | xor bl,bl |
157 | heavyiron | 2659 | jmp check_expression |
2660 | expression_checked: |
||
31 | halyavin | 2661 | mov al,bl |
157 | heavyiron | 2662 | jmp logical_value_ok |
2663 | check_for_used: |
||
31 | halyavin | 2664 | lods word [esi] |
157 | heavyiron | 2665 | cmp ah,2 |
2666 | jne invalid_expression |
||
2667 | lods dword [esi] |
||
2668 | cmp eax,0Fh |
||
2669 | jb invalid_use_of_symbol |
||
2670 | je reserved_word_used_as_symbol |
||
2671 | inc esi |
||
2672 | test byte [eax+8],8 |
||
2673 | jz not_used |
||
2674 | mov cx,[current_pass] |
||
2675 | sub cx,[eax+18] |
||
2676 | jz return_true |
||
2677 | cmp cx,1 |
||
2678 | ja not_used |
||
2679 | or byte [eax+8],10h+20h |
||
2680 | jmp return_true |
||
2681 | not_used: |
||
31 | halyavin | 2682 | or byte [eax+8],10h |
157 | heavyiron | 2683 | and byte [eax+8],not 20h |
2684 | jmp return_false |
||
2685 | given_false: |
||
109 | heavyiron | 2686 | inc esi |
157 | heavyiron | 2687 | return_false: |
31 | halyavin | 2688 | xor al,al |
157 | heavyiron | 2689 | jmp logical_value_ok |
2690 | given_true: |
||
109 | heavyiron | 2691 | inc esi |
157 | heavyiron | 2692 | return_true: |
31 | halyavin | 2693 | or al,-1 |
157 | heavyiron | 2694 | jmp logical_value_ok |
2695 | logical_expression: |
||
31 | halyavin | 2696 | inc esi |
157 | heavyiron | 2697 | call calculate_logical_expression |
2698 | push eax |
||
2699 | lods byte [esi] |
||
2700 | cmp al,'}' |
||
2701 | jne invalid_expression |
||
2702 | pop eax |
||
2703 | logical_value_ok: |
||
31 | halyavin | 2704 | pop ebx |
157 | heavyiron | 2705 | xor al,bl |
2706 | ret' |
||
2707 | >' |