qemu-e2k/target/avr/machine.c

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/*
* QEMU AVR CPU
*
* Copyright (c) 2016-2020 Michael Rolnik
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "migration/cpu.h"
static int get_sreg(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field)
{
CPUAVRState *env = opaque;
uint8_t sreg;
sreg = qemu_get_byte(f);
cpu_set_sreg(env, sreg);
return 0;
}
static int put_sreg(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field, JSONWriter *vmdesc)
{
CPUAVRState *env = opaque;
uint8_t sreg = cpu_get_sreg(env);
qemu_put_byte(f, sreg);
return 0;
}
static const VMStateInfo vms_sreg = {
.name = "sreg",
.get = get_sreg,
.put = put_sreg,
};
static int get_segment(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field)
{
uint32_t *ramp = opaque;
uint8_t temp;
temp = qemu_get_byte(f);
*ramp = ((uint32_t)temp) << 16;
return 0;
}
static int put_segment(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field, JSONWriter *vmdesc)
{
uint32_t *ramp = opaque;
uint8_t temp = *ramp >> 16;
qemu_put_byte(f, temp);
return 0;
}
static const VMStateInfo vms_rampD = {
.name = "rampD",
.get = get_segment,
.put = put_segment,
};
static const VMStateInfo vms_rampX = {
.name = "rampX",
.get = get_segment,
.put = put_segment,
};
static const VMStateInfo vms_rampY = {
.name = "rampY",
.get = get_segment,
.put = put_segment,
};
static const VMStateInfo vms_rampZ = {
.name = "rampZ",
.get = get_segment,
.put = put_segment,
};
static const VMStateInfo vms_eind = {
.name = "eind",
.get = get_segment,
.put = put_segment,
};
const VMStateDescription vms_avr_cpu = {
.name = "cpu",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(env.pc_w, AVRCPU),
VMSTATE_UINT32(env.sp, AVRCPU),
VMSTATE_UINT32(env.skip, AVRCPU),
VMSTATE_UINT32_ARRAY(env.r, AVRCPU, NUMBER_OF_CPU_REGISTERS),
VMSTATE_SINGLE(env, AVRCPU, 0, vms_sreg, CPUAVRState),
VMSTATE_SINGLE(env.rampD, AVRCPU, 0, vms_rampD, uint32_t),
VMSTATE_SINGLE(env.rampX, AVRCPU, 0, vms_rampX, uint32_t),
VMSTATE_SINGLE(env.rampY, AVRCPU, 0, vms_rampY, uint32_t),
VMSTATE_SINGLE(env.rampZ, AVRCPU, 0, vms_rampZ, uint32_t),
VMSTATE_SINGLE(env.eind, AVRCPU, 0, vms_eind, uint32_t),
VMSTATE_END_OF_LIST()
}
};