%{

#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:	%empty
	|	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 END
	|	END
	;