98 lines
1.7 KiB
C
98 lines
1.7 KiB
C
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/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Implementation of the Acer M3A and V35N ports EAh and EBh.
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*
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* Version: @(#)acer_m3a.c 1.0.0 2019/05/13
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*
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* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
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* Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2019 Miran Grca.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include "../86box.h"
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#include "../mem.h"
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#include "../io.h"
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#include "../rom.h"
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#include "../pci.h"
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#include "../device.h"
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#include "../keyboard.h"
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#include "chipset.h"
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typedef struct
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{
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int index;
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} acerm3a_t;
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static void
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acerm3a_out(uint16_t port, uint8_t val, void *p)
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{
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acerm3a_t *dev = (acerm3a_t *) p;
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if (port == 0xea)
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dev->index = val;
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}
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static uint8_t
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acerm3a_in(uint16_t port, void *p)
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{
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acerm3a_t *dev = (acerm3a_t *) p;
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if (port == 0xeb) {
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switch (dev->index) {
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case 2:
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return 0xfd;
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}
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}
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return 0xff;
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}
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static void
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acerm3a_close(void *p)
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{
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acerm3a_t *dev = (acerm3a_t *)p;
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free(dev);
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}
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static void
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*acerm3a_init(const device_t *info)
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{
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acerm3a_t *acerm3a = (acerm3a_t *) malloc(sizeof(acerm3a_t));
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memset(acerm3a, 0, sizeof(acerm3a_t));
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io_sethandler(0x00ea, 0x0002, acerm3a_in, NULL, NULL, acerm3a_out, NULL, NULL, acerm3a);
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return acerm3a;
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}
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const device_t acerm3a_device =
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{
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"Acer M3A Register",
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0,
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0,
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acerm3a_init,
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acerm3a_close,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL
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};
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