#include "types.h"

#pragma once

#define FL_EPSILON (1e-6f)

enum OpTypes {
  OP_add   =  0,
  OP_sub   =  1,
  OP_mul   =  2,
  OP_div   =  3,
  OP_mod   =  4,
  OP_call  =  5,
  OP_ret   =  6,
  OP_mov   =  7,
  OP_copy  =  8,
  OP_get   =  9,
  OP_set   = 10,
  OP_gt    = 11,
  OP_ge    = 12,
  OP_eq    = 13,
  OP_jmp   = 14,
  OP_brt   = 15,
  OP_cast  = 16,
  OP_fcast = 17,
  OP_init  = 18,
  OP_fcall = 19,
  OP_pop   = 20,
  OP_popl  = 21,
  OP_cst0  = 22,
  OP_cst1  = 23,
  OP_iter  = 24
};

typedef struct {

  u8 type; // OpTypes
  u8 o1;
  u8 o2;
  u8 o3;

} PACKED Opcode;

typedef struct {

  u8 __padding[2];
  u32 value;

} PACKED Value4B;

typedef struct {

  u16 len;
  u32 pos; // Offset from stack allocator

} PACKED ValueArray;

typedef struct {

  u8 len;
  union {
    char str[5];
    struct {
      u8 __padding;
      u32 pos;
    };
  };

} PACKED ValueStr;

typedef struct {

  uint is_array :  1;
  uint     type : 15;

  PACKED union {
    Value4B       v4B;
    ValueArray varray;
  };

} PACKED Value;

_Static_assert(sizeof(Value) == 8);