#ifndef __INSTR_H__
#define __INSTR_H__

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include "mem.h"


#ifndef OPCODE_WORDSIZE
    #error OPCODE_WORDSIZE must be provided
//     #define OPCODE_WORDSIZE 1
#endif
#if OPCODE_WORDSIZE == 1
    typedef uint8_t opcode_t;
#elif OPCODE_WORDSIZE == 2
    typedef uint16_t opcode_t;
#elif OPCODE_WORDSIZE == 3
    typedef uint32_t opcode_t;
#elif OPCODE_WORDSIZE == 4
    typedef uint32_t opcode_t;
#else
    #error OPCODE_WORDSIZE must be one of 1,2,3,4
#endif


#ifndef PC_WORDSIZE
    #error PC_WORDSIZE must be provided
//     #define PC_WORDSIZE 1
#endif
#if PC_WORDSIZE == 1
    typedef uint8_t prog_counter_t;
#elif PC_WORDSIZE == 2
    typedef uint16_t prog_counter_t;
#elif PC_WORDSIZE == 3
    typedef uint32_t prog_counter_t;
#elif PC_WORDSIZE == 4
    typedef uint32_t prog_counter_t;
#else
    #error PC_WORDSIZE must be one of 1,2,3,4
#endif

typedef uint8_t (*instr_h_func)(prog_counter_t*, device_mem_t*);

typedef struct 
{
    instr_h_func h;
    opcode_t base;
    opcode_t argsMask;
    uint8_t opcodeLen;

} instruction_metadata_t;

instr_h_func* genInstrArray(char* errbuf);
void setOpcodeSizes(uint8_t* opcodeSizes);
opcode_t extractOpcode(device_mem_t* devMem, prog_counter_t programCounter);




#define AVRe 1
#define AVRxm 2
#define AVRxt 3
#define AVRrc 4

#ifndef ARCH
#define ARCH AVRe
#endif



#endif // ifndef __INSTR_H__