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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 <nw/interp.h>
#include <nw/io.h>
#include <nw/log.h>
#include <nw/opcodes.h>
#include <nw/ops.h>
#include <nw/routines.h>
#include <inttypes.h>
static enum nw_state get_bytecode(struct nw_interp *const i)
{
const struct nw_io_cfg *const cfg = &i->cfg.io;
struct nw_i_sm_b *const b = &i->sm.bytecode;
const enum nw_state n = nwp_io_read(cfg, &b->io);
if (n)
return n;
else if (b->op >= nwp_ops.n)
{
static const char exc[] = "invalid opcode";
LOG("%s: %s: %#" PRIx8 "\n", __func__, exc, b->op);
i->exception = exc;
}
nwp_ops.ops[b->op](i);
return NW_AGAIN;
}
void nwp_interp_full(struct nw_interp *const i)
{
struct nw_i_sm_b *const b = &i->sm.bytecode;
i->next = get_bytecode;
b->io = (const struct nw_sm_io)
{
.buf = &b->op,
.n = sizeof b->op
};
}
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