#include <vm/internals/opcode.h>

// Stack-relative opcodes group
const opcode_handler group_stack[] = {
    [1] = op_loadconst,
    [2] = op_call_builtin,
    [3] = op_pushnum,
    [4] = op_pushbool,
};

// Context-relative opcodes group
const opcode_handler group_ctx[] = {
    [1] = op_mk_envtable, [2] = op_rm_envtable, [3] = op_store,
    [4] = op_lookup_env,  [5] = op_write,
};

// Flow-relative opcodes group
const opcode_handler group_flow[] = {
    [1] = op_jmp,
    [2] = op_jz,
};

// Function-relative opcodes group
const opcode_handler group_fn[] = {
    [1] = op_call,
    [2] = op_ret,
};

// Object-relative opcodes group
const opcode_handler group_obj[] = {
    [1] = op_alloc_object,  [2] = op_get_field,   [3] = op_set_field,
    [4] = op_escape_object, [5] = op_dereference,
};

// Math-relative opcodes group
const opcode_handler group_math[] = {
    [1] = op_add, [2] = op_sub, [3] = op_mul, [4] = op_div,
    [5] = op_pow, [6] = op_mod, [7] = op_neg,
};

// String-relative opcodes group
const opcode_handler group_str[] = {
    [1] = op_build_str,
};

// Basic comparison
const opcode_handler group_cmp[] = {
    [1] = op_cmp_eq,   [2] = op_cmp_neq, [3] = op_cmp_lt,
    [4] = op_cmp_lteq, [5] = op_cmp_gt,  [6] = op_cmp_gteq,
};

// Strings comparison
const opcode_handler group_strcmp[] = {
    [1] = op_cmp_eq_str,
    [2] = op_cmp_neq_str,
};

// Object comparison
const opcode_handler group_objcmp[] = {
    [1] = op_cmp_eq_obj,
    [2] = op_cmp_neq_obj,
};

// AND / OR opcodes
const opcode_handler group_and_or[] = {
    [1] = op_and,
    [2] = op_or,
};

// NOT opcode
const opcode_handler group_not[] = {
    [1] = op_not,
};

// Master table
const opcode_handler *const master_tbl[] = {
    [0xF0] = group_stack,  [0xF1] = group_ctx,    [0xF2] = group_flow,
    [0xF3] = group_fn,     [0xFA] = group_obj,    [0xA0] = group_math,
    [0xA1] = group_str,    [0xB0] = group_cmp,    [0xB1] = group_strcmp,
    [0xB2] = group_objcmp, [0xC0] = group_and_or, [0xD0] = group_not,
};