185 lines
3.8 KiB
C
185 lines
3.8 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <wchar.h>
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#include <86box/86box.h>
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#include <86box/timer.h>
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#include <86box/pic.h>
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#include <86box/pit.h>
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#include <86box/dma.h>
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#include <86box/mem.h>
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#include <86box/device.h>
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#include <86box/fdd.h>
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#include <86box/fdc.h>
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#include <86box/nmi.h>
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#include <86box/nvr.h>
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#include <86box/gameport.h>
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#include <86box/keyboard.h>
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#include <86box/lpt.h>
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#include <86box/rom.h>
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#include <86box/hdc.h>
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#include <86box/video.h>
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#include <86box/machine.h>
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#include "cpu.h"
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#include <86box/m_xt_xi8088.h>
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typedef struct xi8088_t
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{
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uint8_t turbo;
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int turbo_setting;
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int bios_128kb;
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} xi8088_t;
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static xi8088_t xi8088;
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uint8_t
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xi8088_turbo_get()
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{
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return xi8088.turbo;
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}
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void
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xi8088_turbo_set(uint8_t value)
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{
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int c;
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if (!xi8088.turbo_setting)
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return;
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xi8088.turbo = value;
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if (!value) {
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c = cpu;
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cpu = 0; /* 8088/4.77 */
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cpu_set();
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cpu = c;
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} else
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cpu_set();
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}
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int
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xi8088_bios_128kb(void)
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{
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return xi8088.bios_128kb;
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}
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static void *
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xi8088_init(const device_t *info)
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{
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/* even though the bios by default turns the turbo off when controlling by hotkeys, pcem always starts at full speed */
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xi8088.turbo = 1;
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xi8088.turbo_setting = device_get_config_int("turbo_setting");
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xi8088.bios_128kb = device_get_config_int("bios_128kb");
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return &xi8088;
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}
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static const device_config_t xi8088_config[] =
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{
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{
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.name = "turbo_setting",
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.description = "Turbo",
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.type = CONFIG_SELECTION,
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.selection =
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{
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{
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.description = "Always at selected speed",
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.value = 0
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},
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{
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.description = "Hotkeys (starts off)",
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.value = 1
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}
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},
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.default_int = 0
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},
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{
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.name = "bios_128kb",
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.description = "BIOS size",
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.type = CONFIG_SELECTION,
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.selection =
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{
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{
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.description = "64KB",
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.value = 0
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},
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{
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.description = "128KB",
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.value = 1
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}
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},
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.default_int = 1
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},
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{
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.type = -1
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}
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};
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const device_t xi8088_device =
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{
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"Xi8088",
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0,
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0,
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xi8088_init,
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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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xi8088_config
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};
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const device_t *
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xi8088_get_device(void)
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{
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return &xi8088_device;
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}
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int
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machine_xt_xi8088_init(const machine_t *model)
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{
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int ret;
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if (bios_only) {
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ret = bios_load_linear_inverted(L"roms/machines/xi8088/bios-xi8088-128k.bin",
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0x000e0000, 131072, 0);
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ret |= bios_load_linear(L"roms/machines/xi8088/bios-xi8088.bin",
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0x000f0000, 65536, 0);
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} else {
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device_add(&xi8088_device);
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if (xi8088_bios_128kb()) {
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ret = bios_load_linear_inverted(L"roms/machines/xi8088/bios-xi8088-128k.bin",
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0x000e0000, 131072, 0);
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} else {
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ret = bios_load_linear(L"roms/machines/xi8088/bios-xi8088.bin",
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0x000f0000, 65536, 0);
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}
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}
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if (bios_only || !ret)
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return ret;
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/* TODO: set UMBs? See if PCem always sets when we have > 640KB ram and avoids conflicts when a peripheral uses the same memory space */
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machine_common_init(model);
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device_add(&fdc_at_device);
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device_add(&keyboard_ps2_xi8088_device);
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nmi_init();
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device_add(&ibmat_nvr_device);
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pic2_init();
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if (joystick_type != JOYSTICK_TYPE_NONE)
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device_add(&gameport_device);
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return ret;
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}
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