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/*
* nanowasm, a tiny WebAssembly/Wasm interpreter
* Copyright (C) 2023-2025 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/linear.h>
#include <nw/io.h>
#include <nw/interp.h>
#include <nw/stack.h>
#include <nw/log.h>
#include <nw/ops.h>
#include <nw/routines.h>
static enum nw_state store(struct nw_interp *const i)
{
struct nw_i_sm_store *const s = &i->sm.store;
const enum nw_state n = nwp_linear_store(i, &s->io, s->addr + s->imm.offset);
if (n)
return n;
nwp_interp_resume(i);
return NW_AGAIN;
}
static enum nw_state pop_addr(struct nw_interp *const i)
{
struct nw_i_sm_store *const s = &i->sm.store;
const enum nw_state n = nwp_stack_pop(i, &s->io);
if (n)
return n;
else
{
struct nw_sm_io io = {0};
io.buf = &s->value.i32;
io.n = sizeof s->value.i32;
s->io = io;
i->next = store;
}
return NW_AGAIN;
}
static enum nw_state pop_value(struct nw_interp *const i)
{
struct nw_i_sm_store *const s = &i->sm.store;
const enum nw_state n = nwp_stack_pop(i, &s->io);
if (n)
return n;
else
{
const struct nw_sm_io io = {0};
s->value.i32 = nwp_leuint32(&s->value.v32);
s->io = io;
s->io.buf = &s->addr;
s->io.n = sizeof s->addr;
i->next = pop_addr;
}
return NW_AGAIN;
}
static void prepare(struct nw_interp *const i)
{
const struct nw_i_sm_store s = {0};
struct nw_i_sm_store *const ps = &i->sm.store;
struct nw_sm_io *const io = &ps->io;
struct nw_i_sm_imm_out out;
out = i->sm.imm.out;
*ps = s;
ps->imm = out;
io->buf = &ps->value.i32;
io->n = sizeof ps->value.i32;
i->next = pop_value;
}
void nwp_op_i32_store(struct nw_interp *const i)
{
nwp_mem_imm(i, prepare);
}
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