4404802163
ysyx_22040000 李心杨 Linux calcite 6.1.71 #1-NixOS SMP PREEMPT_DYNAMIC Fri Jan 5 14:18:41 UTC 2024 x86_64 GNU/Linux 23:40:16 up 2 days 12:35, 2 users, load average: 0.91, 0.54, 0.42
24 lines
658 B
Text
24 lines
658 B
Text
%{
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#include <isa.h>
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#include <addrexp.h>
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static bool success = false;
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void yyerror(word_t *result, const char *err);
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%}
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%option noyywrap
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%%
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0[xX][0-9a-fA-F]+ { yylval = strtoul(yytext, NULL, 16); return HEX_NUMBER; }
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[0-9]+ { yylval = strtoul(yytext, NULL, 10); return NUMBER; }
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$[a-zA-Z]{2,3} {
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yylval = isa_reg_str2val(yytext + 1, &success);
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if(!success) {
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yyerror(NULL, "Failed to convert reg to value");
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return YYerror;
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}
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return REGISTER;
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}
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[+\-*/()] { return *yytext; }
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[ \t] { }
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. { printf("Unexpected character: %s\n", yytext); return YYerror; }
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%%
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