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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/log.h>
#include <nw/ops.h>
#include <nanowasm/nw.h>
#include <nw/types.h>
#include <nw/interp.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
static int get_i32(struct nw_interp *const i, const void *const data,
const varuint32 idx)
{
const int32_t *const src = (const int32_t *)data + idx;
return interp_stack_push(i, src, sizeof (*src));
}
static int get_i64(struct nw_interp *const i, const void *const data,
const varuint32 idx)
{
const int64_t *const src = (const int64_t *)data + idx;
return interp_stack_push(i, src, sizeof (*src));
}
static int get_f32(struct nw_interp *const i, const void *const data,
const varuint32 idx)
{
const float *const src = (const float *)data + idx;
return interp_stack_push(i, src, sizeof (*src));
}
static int get_f64(struct nw_interp *const i, const void *const data,
const varuint32 idx)
{
const double *const src = (const double *)data + idx;
return interp_stack_push(i, src, sizeof (*src));
}
static int get_local(const varuint32 local_index, struct nw_interp *const i)
{
struct nw_locals *l;
varuint32 idx;
if (locals_get(local_index, i, &l, &idx))
{
LOG("%s: locals_get failed\n", __func__);
return -1;
}
static int (*const get[])(struct nw_interp *, const void *,
varuint32) =
{
[VALUE_TYPE_I32] = get_i32,
[VALUE_TYPE_I64] = get_i64,
[VALUE_TYPE_F32] = get_f32,
[VALUE_TYPE_F64] = get_f64,
};
if (get[l->type](i, l + 1, idx))
{
LOG("%s: get type %d failed\n", __func__, l->type);
return -1;
}
return 0;
}
static int op(struct nw_interp *const i, FILE *const f)
{
varuint32 local_index;
if (varuint32_read(f, &local_index))
{
LOG("%s: varuint32_read failed\n", __func__);
return 1;
}
else if (i && get_local(local_index, i))
{
LOG("%s: get_local failed\n", __func__);
return -1;
}
return 0;
}
int op_get_local(struct nw_interp *const i)
{
return op(i, i->f);
}
int check_get_local(FILE *const f)
{
return op(NULL, f);
}
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