1 /* 2 * QEMU AVR CPU 3 * 4 * Copyright (c) 2016-2020 Michael Rolnik 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see 18 * <http://www.gnu.org/licenses/lgpl-2.1.html> 19 */ 20 21 #include "qemu/osdep.h" 22 #include "cpu.h" 23 #include "migration/cpu.h" 24 25 static int get_sreg(QEMUFile *f, void *opaque, size_t size, 26 const VMStateField *field) 27 { 28 CPUAVRState *env = opaque; 29 uint8_t sreg; 30 31 sreg = qemu_get_byte(f); 32 cpu_set_sreg(env, sreg); 33 return 0; 34 } 35 36 static int put_sreg(QEMUFile *f, void *opaque, size_t size, 37 const VMStateField *field, QJSON *vmdesc) 38 { 39 CPUAVRState *env = opaque; 40 uint8_t sreg = cpu_get_sreg(env); 41 42 qemu_put_byte(f, sreg); 43 return 0; 44 } 45 46 static const VMStateInfo vms_sreg = { 47 .name = "sreg", 48 .get = get_sreg, 49 .put = put_sreg, 50 }; 51 52 static int get_segment(QEMUFile *f, void *opaque, size_t size, 53 const VMStateField *field) 54 { 55 uint32_t *ramp = opaque; 56 uint8_t temp; 57 58 temp = qemu_get_byte(f); 59 *ramp = ((uint32_t)temp) << 16; 60 return 0; 61 } 62 63 static int put_segment(QEMUFile *f, void *opaque, size_t size, 64 const VMStateField *field, QJSON *vmdesc) 65 { 66 uint32_t *ramp = opaque; 67 uint8_t temp = *ramp >> 16; 68 69 qemu_put_byte(f, temp); 70 return 0; 71 } 72 73 static const VMStateInfo vms_rampD = { 74 .name = "rampD", 75 .get = get_segment, 76 .put = put_segment, 77 }; 78 static const VMStateInfo vms_rampX = { 79 .name = "rampX", 80 .get = get_segment, 81 .put = put_segment, 82 }; 83 static const VMStateInfo vms_rampY = { 84 .name = "rampY", 85 .get = get_segment, 86 .put = put_segment, 87 }; 88 static const VMStateInfo vms_rampZ = { 89 .name = "rampZ", 90 .get = get_segment, 91 .put = put_segment, 92 }; 93 static const VMStateInfo vms_eind = { 94 .name = "eind", 95 .get = get_segment, 96 .put = put_segment, 97 }; 98 99 const VMStateDescription vms_avr_cpu = { 100 .name = "cpu", 101 .version_id = 0, 102 .minimum_version_id = 0, 103 .fields = (VMStateField[]) { 104 VMSTATE_UINT32(env.pc_w, AVRCPU), 105 VMSTATE_UINT32(env.sp, AVRCPU), 106 VMSTATE_UINT32(env.skip, AVRCPU), 107 108 VMSTATE_UINT32_ARRAY(env.r, AVRCPU, NUMBER_OF_CPU_REGISTERS), 109 110 VMSTATE_SINGLE(env, AVRCPU, 0, vms_sreg, CPUAVRState), 111 VMSTATE_SINGLE(env.rampD, AVRCPU, 0, vms_rampD, uint32_t), 112 VMSTATE_SINGLE(env.rampX, AVRCPU, 0, vms_rampX, uint32_t), 113 VMSTATE_SINGLE(env.rampY, AVRCPU, 0, vms_rampY, uint32_t), 114 VMSTATE_SINGLE(env.rampZ, AVRCPU, 0, vms_rampZ, uint32_t), 115 VMSTATE_SINGLE(env.eind, AVRCPU, 0, vms_eind, uint32_t), 116 117 VMSTATE_END_OF_LIST() 118 } 119 }; 120