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|
%{
#include <stdio.h>
#include "lexer.h"
#include "mnemonics.h"
void yyerror(const char *msg)
{
fprintf(stderr, "%s\n", msg);
}
#define INSTRUCTION(mnem) (struct instruction) { MNEM_ ## mnem }
%}
%output "parser.c"
%defines "parser.h"
%code requires {
#include "nqasm.h"
}
%union {
struct instruction inst;
}
%token END 0 "end of file"
%token T_SPACE
%token T_EOL
%token T_ADD
%token T_SUB
%token T_MUL
%token T_DIV
%token T_AND
%token T_OR
%token T_XOR
%token T_LSL
%token T_LSR
%token T_ASL
%token T_ASR
%token T_ROL
%token T_ROR
%token T_NOT
%token T_NEG
%token T_BTC
%token T_BTS
%token T_MOV
%token T_ST_B
%token T_ST_W
%token T_LD_BL
%token T_LD_BH
%token T_LD_W
%token T_LDI_BL
%token T_LDI_BH
%token T_BEQ
%token T_BNE
%token T_BGT
%token T_BGE
%token T_BLT
%token T_BLE
%token T_BRA
%token T_JMP
%token T_ADDPC
%token T_NOP
%type <inst> inst
%%
input: line
| input line
;
line: T_SPACE inst eol
{ add_instruction(&$2); }
| eol
;
inst: T_ADD
{ $$ = INSTRUCTION(ADD); }
| T_SUB
{ $$ = INSTRUCTION(SUB); }
| T_MUL
{ $$ = INSTRUCTION(MUL); }
| T_DIV
{ $$ = INSTRUCTION(DIV); }
| T_AND
{ $$ = INSTRUCTION(AND); }
| T_OR
{ $$ = INSTRUCTION(OR); }
| T_XOR
{ $$ = INSTRUCTION(XOR); }
| T_LSL
{ $$ = INSTRUCTION(LSL); }
| T_LSR
{ $$ = INSTRUCTION(LSR); }
| T_ASL
{ $$ = INSTRUCTION(ASL); }
| T_ASR
{ $$ = INSTRUCTION(ASR); }
| T_ROL
{ $$ = INSTRUCTION(ROL); }
| T_ROR
{ $$ = INSTRUCTION(ROR); }
| T_NOT
{ $$ = INSTRUCTION(NOT); }
| T_NEG
{ $$ = INSTRUCTION(NEG); }
| T_BTC
{ $$ = INSTRUCTION(BTC); }
| T_BTS
{ $$ = INSTRUCTION(BTS); }
| T_MOV
{ $$ = INSTRUCTION(MOV); }
| T_ST_B
{ $$ = INSTRUCTION(ST_B); }
| T_ST_W
{ $$ = INSTRUCTION(ST_W); }
| T_LD_BL
{ $$ = INSTRUCTION(LD_BL); }
| T_LD_BH
{ $$ = INSTRUCTION(LD_BH); }
| T_LD_W
{ $$ = INSTRUCTION(LD_W); }
| T_LDI_BL
{ $$ = INSTRUCTION(LDI_BL); }
| T_LDI_BH
{ $$ = INSTRUCTION(LDI_BH); }
| T_BEQ
{ $$ = INSTRUCTION(BEQ); }
| T_BNE
{ $$ = INSTRUCTION(BNE); }
| T_BGT
{ $$ = INSTRUCTION(BGT); }
| T_BGE
{ $$ = INSTRUCTION(BGE); }
| T_BLT
{ $$ = INSTRUCTION(BLT); }
| T_BLE
{ $$ = INSTRUCTION(BLE); }
| T_BRA
{ $$ = INSTRUCTION(BRA); }
| T_JMP
{ $$ = INSTRUCTION(JMP); }
| T_ADDPC
{ $$ = INSTRUCTION(ADDPC); }
| T_NOP
{ $$ = INSTRUCTION(NOP); }
;
eol: T_EOL
| T_SPACE T_EOL
;
|
