/* Author      : Rick van der Zwet
 * S-number    : 0433373
 * Version     : $Id: alu.h 365 2007-12-03 08:54:04Z rick $
 * Copyright   : FreeBSD Licence
 * Description : ALU unit header
 */

#ifndef ALU_H
#define ALU_H

#include "sim.h"

/* Signals */
boolean zero;
boolean negative;

typedef enum {
        ALU_STALLED,
        ADD,
        AND,
        NOR,
        OR,
        PassS1,
        PassS2,
        SLL,
        SRA,
        SRL,
        SUB,
        XOR
} alu_control_t;

word alu_sra(const word in1, const word in2);
word alu(word in1, word in2, alu_control_t action);

#endif