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%{
#include <string.h>
#include <stdlib.h>
#include "parser.tab.h"
extern int yylex();
extern size_t line_number;
%}
%option noyywrap
%%
\".*\" {
yylval.s_val = strdup(yytext+1);
char *const close_paren = strrchr(yylval.s_val, '"');
if (close_paren != NULL) {
*close_paren = '\0';
}
return T_STRING;
}
, { return T_COMMA; }
\( { return T_OPENPAREN; }
\) { return T_CLOSEPAREN; }
#.* ;
[ \t] ;
\n { ++line_number; return T_ENDL; }
0x[0-9A-Fa-f]+ { yylval.i_val = atoi(yytext); return T_INTEGER; }
-*[0-9]+ { yylval.i_val = atoi(yytext); return T_INTEGER; }
lui { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
auipc { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
jal { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
jalr { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
beq { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
bne { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
blt { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
bge { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
bltu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
bgeu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lb { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lh { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lbu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lhu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sb { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sh { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
addi { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
slti { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sltiu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
xori { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
ori { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
andi { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
slli { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
srli { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
srai { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
add { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sub { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sll { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
slt { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sltu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
xor { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
srl { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sra { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
or { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
and { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
fence { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
ecall { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
ebreak { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
addiw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
slliw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
srliw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sraiw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
addw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
subw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sllw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
srlw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sraw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
ld { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
lwu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
sd { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
mul { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
mulh { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
mulhsu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
mulhu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
div { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
divu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
rem { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
remu { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
mulw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
divw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
divuw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
remw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
remuw { yylval.instruction = strdup(yytext); return T_INSTRUCTION; }
zero { yylval.reg = strdup(yytext); return T_REGISTER; }
ra { yylval.reg = strdup(yytext); return T_REGISTER; }
sp { yylval.reg = strdup(yytext); return T_REGISTER; }
gp { yylval.reg = strdup(yytext); return T_REGISTER; }
tp { yylval.reg = strdup(yytext); return T_REGISTER; }
t0 { yylval.reg = strdup(yytext); return T_REGISTER; }
t1 { yylval.reg = strdup(yytext); return T_REGISTER; }
t2 { yylval.reg = strdup(yytext); return T_REGISTER; }
s0 { yylval.reg = strdup(yytext); return T_REGISTER; }
fp { yylval.reg = strdup(yytext); return T_REGISTER; }
s1 { yylval.reg = strdup(yytext); return T_REGISTER; }
a0 { yylval.reg = strdup(yytext); return T_REGISTER; }
a1 { yylval.reg = strdup(yytext); return T_REGISTER; }
a2 { yylval.reg = strdup(yytext); return T_REGISTER; }
a3 { yylval.reg = strdup(yytext); return T_REGISTER; }
a4 { yylval.reg = strdup(yytext); return T_REGISTER; }
a5 { yylval.reg = strdup(yytext); return T_REGISTER; }
a6 { yylval.reg = strdup(yytext); return T_REGISTER; }
a7 { yylval.reg = strdup(yytext); return T_REGISTER; }
s2 { yylval.reg = strdup(yytext); return T_REGISTER; }
s3 { yylval.reg = strdup(yytext); return T_REGISTER; }
s4 { yylval.reg = strdup(yytext); return T_REGISTER; }
s5 { yylval.reg = strdup(yytext); return T_REGISTER; }
s6 { yylval.reg = strdup(yytext); return T_REGISTER; }
s7 { yylval.reg = strdup(yytext); return T_REGISTER; }
s8 { yylval.reg = strdup(yytext); return T_REGISTER; }
s9 { yylval.reg = strdup(yytext); return T_REGISTER; }
s10 { yylval.reg = strdup(yytext); return T_REGISTER; }
s11 { yylval.reg = strdup(yytext); return T_REGISTER; }
t3 { yylval.reg = strdup(yytext); return T_REGISTER; }
t4 { yylval.reg = strdup(yytext); return T_REGISTER; }
t5 { yylval.reg = strdup(yytext); return T_REGISTER; }
t6 { yylval.reg = strdup(yytext); return T_REGISTER; }
x0 { yylval.reg = strdup(yytext); return T_REGISTER; }
x1 { yylval.reg = strdup(yytext); return T_REGISTER; }
x2 { yylval.reg = strdup(yytext); return T_REGISTER; }
x3 { yylval.reg = strdup(yytext); return T_REGISTER; }
x4 { yylval.reg = strdup(yytext); return T_REGISTER; }
x5 { yylval.reg = strdup(yytext); return T_REGISTER; }
x6 { yylval.reg = strdup(yytext); return T_REGISTER; }
x7 { yylval.reg = strdup(yytext); return T_REGISTER; }
x8 { yylval.reg = strdup(yytext); return T_REGISTER; }
x9 { yylval.reg = strdup(yytext); return T_REGISTER; }
x10 { yylval.reg = strdup(yytext); return T_REGISTER; }
x11 { yylval.reg = strdup(yytext); return T_REGISTER; }
x12 { yylval.reg = strdup(yytext); return T_REGISTER; }
x13 { yylval.reg = strdup(yytext); return T_REGISTER; }
x14 { yylval.reg = strdup(yytext); return T_REGISTER; }
x15 { yylval.reg = strdup(yytext); return T_REGISTER; }
x16 { yylval.reg = strdup(yytext); return T_REGISTER; }
x17 { yylval.reg = strdup(yytext); return T_REGISTER; }
x18 { yylval.reg = strdup(yytext); return T_REGISTER; }
x19 { yylval.reg = strdup(yytext); return T_REGISTER; }
x20 { yylval.reg = strdup(yytext); return T_REGISTER; }
x21 { yylval.reg = strdup(yytext); return T_REGISTER; }
x22 { yylval.reg = strdup(yytext); return T_REGISTER; }
x23 { yylval.reg = strdup(yytext); return T_REGISTER; }
x24 { yylval.reg = strdup(yytext); return T_REGISTER; }
x25 { yylval.reg = strdup(yytext); return T_REGISTER; }
x26 { yylval.reg = strdup(yytext); return T_REGISTER; }
x27 { yylval.reg = strdup(yytext); return T_REGISTER; }
x28 { yylval.reg = strdup(yytext); return T_REGISTER; }
x29 { yylval.reg = strdup(yytext); return T_REGISTER; }
x30 { yylval.reg = strdup(yytext); return T_REGISTER; }
x31 { yylval.reg = strdup(yytext); return T_REGISTER; }
.align { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.globl { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.local { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.ident { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.section { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.size { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.text { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.data { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.rodata { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.bss { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.string { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.asciz { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.equ { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.byte { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.2byte { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.half { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.short { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.4byte { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.word { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.long { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.8byte { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.dword { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.quad { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.float { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.double { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
.zero { yylval.directive = strdup(yytext); return T_DIRECTIVE; }
%hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%lo { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%pcrel_hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%pcrel_lo { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%tprel_hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%tprel_lo { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%tprel_add { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%tls_ie_pcrel_hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%tls_gd_pcrel_hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
%got_pcrel_hi { yylval.modifier = strdup(yytext); return T_MODIFIER; }
^[a-zA-Z0-9\.\_]+: {
yylval.symbol = strdup(yytext);
char *const colon = strrchr(yylval.symbol, ':');
if (colon != NULL) {
*colon = '\0';
}
return T_LABEL;
}
[a-zA-Z\_\.]+[a-zA-Z0-9\_\.]* { yylval.modifier = strdup(yytext); return T_SYMBOL; }
. ;
%%
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