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/*
* nanowasm, a tiny WebAssembly/Wasm interpreter
* Copyright (C) 2023-2024 Xavier Del Campo Romero
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#include <nanowasm/nw.h>
#include <nw/interp.h>
#include <nw/io.h>
#include <nw/log.h>
#include <nw/opcodes.h>
int nwp_interp_check_opcode(const uint8_t op, FILE *const f)
{
static int (*const checks[])(FILE *) =
{
[OP_UNREACHABLE] = check_unreachable,
[OP_NOP] = check_nop,
[OP_BLOCK] = check_block,
[OP_LOOP] = check_loop,
[OP_IF] = check_if,
[OP_ELSE] = check_else,
[OP_END] = check_end,
[OP_BR] = check_br,
[OP_BR_IF] = check_br_if,
[OP_BR_TABLE] = check_br_table,
[OP_RETURN] = check_return,
[OP_CALL] = check_call,
[OP_CALL_INDIRECT] = check_call_indirect,
[OP_GET_LOCAL] = check_get_local,
[OP_SET_LOCAL] = check_set_local,
[OP_TEE_LOCAL] = check_tee_local,
[OP_GET_GLOBAL] = check_get_global,
[OP_SET_GLOBAL] = check_set_global,
[OP_I32_LOAD] = check_i32_load,
[OP_I32_STORE] = check_i32_store,
[OP_I32_CONST] = check_i32_const,
[OP_I64_CONST] = check_i64_const,
[OP_F32_CONST] = check_f32_const,
[OP_F64_CONST] = check_f64_const,
[OP_I32_SUB] = check_i32_sub
};
if (op >= sizeof checks / sizeof *checks)
{
LOG("%s: invalid opcode %#" PRIx8 "\n", __func__, op);
return 1;
}
else if (!checks[op])
{
LOG("%s: unsupported opcode %#" PRIx8 "\n", __func__, op);
return 1;
}
return checks[op](f);
}
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