259 lines
7.6 KiB
C++
259 lines
7.6 KiB
C++
/***************************************************************************
|
|
|
|
coco.h
|
|
|
|
TRS-80 Radio Shack Color Computer Family
|
|
|
|
***************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#ifndef __COCO__
|
|
#define __COCO__
|
|
|
|
|
|
#include "emu.h"
|
|
#include "imagedev/cassette.h"
|
|
#include "bus/rs232/rs232.h"
|
|
#include "machine/6821pia.h"
|
|
#include "bus/coco/cococart.h"
|
|
#include "machine/coco_vhd.h"
|
|
#include "machine/ram.h"
|
|
#include "sound/dac.h"
|
|
#include "sound/wave.h"
|
|
|
|
|
|
|
|
//**************************************************************************
|
|
// MACROS / CONSTANTS
|
|
//**************************************************************************
|
|
|
|
INPUT_PORTS_EXTERN( coco_analog_control );
|
|
INPUT_PORTS_EXTERN( coco_cart_autostart );
|
|
INPUT_PORTS_EXTERN( coco_rtc );
|
|
|
|
SLOT_INTERFACE_EXTERN( coco_cart );
|
|
|
|
// constants
|
|
#define JOYSTICK_DELTA 10
|
|
#define JOYSTICK_SENSITIVITY 100
|
|
|
|
// devices
|
|
#define MAINCPU_TAG "maincpu"
|
|
#define PIA0_TAG "pia0"
|
|
#define PIA1_TAG "pia1"
|
|
#define SAM_TAG "sam"
|
|
#define VDG_TAG "vdg"
|
|
#define SCREEN_TAG "screen"
|
|
#define DAC_TAG "dac"
|
|
#define CARTRIDGE_TAG "ext"
|
|
#define RS232_TAG "rs232"
|
|
#define VHD0_TAG "vhd0"
|
|
#define VHD1_TAG "vhd1"
|
|
|
|
// inputs
|
|
#define CTRL_SEL_TAG "ctrl_sel"
|
|
#define HIRES_INTF_TAG "hires_intf"
|
|
#define CART_AUTOSTART_TAG "cart_autostart"
|
|
#define JOYSTICK_RX_TAG "joystick_rx"
|
|
#define JOYSTICK_RY_TAG "joystick_ry"
|
|
#define JOYSTICK_LX_TAG "joystick_lx"
|
|
#define JOYSTICK_LY_TAG "joystick_ly"
|
|
#define JOYSTICK_BUTTONS_TAG "joystick_buttons"
|
|
#define RAT_MOUSE_RX_TAG "rat_mouse_rx"
|
|
#define RAT_MOUSE_RY_TAG "rat_mouse_ry"
|
|
#define RAT_MOUSE_LX_TAG "rat_mouse_lx"
|
|
#define RAT_MOUSE_LY_TAG "rat_mouse_ly"
|
|
#define RAT_MOUSE_BUTTONS_TAG "rat_mouse_buttons"
|
|
#define DIECOM_LIGHTGUN_RX_TAG "dclg_rx"
|
|
#define DIECOM_LIGHTGUN_RY_TAG "dclg_ry"
|
|
#define DIECOM_LIGHTGUN_LX_TAG "dclg_lx"
|
|
#define DIECOM_LIGHTGUN_LY_TAG "dclg_ly"
|
|
#define DIECOM_LIGHTGUN_BUTTONS_TAG "dclg_triggers"
|
|
|
|
MACHINE_CONFIG_EXTERN( coco_sound );
|
|
|
|
|
|
|
|
//**************************************************************************
|
|
// TYPE DEFINITIONS
|
|
//**************************************************************************
|
|
|
|
class coco_state : public driver_device
|
|
{
|
|
public:
|
|
coco_state(const machine_config &mconfig, device_type type, const char *tag);
|
|
|
|
required_device<cpu_device> m_maincpu;
|
|
required_device<pia6821_device> m_pia_0;
|
|
required_device<pia6821_device> m_pia_1;
|
|
required_device<dac_device> m_dac;
|
|
required_device<wave_device> m_wave;
|
|
required_device<cococart_slot_device> m_cococart;
|
|
required_device<ram_device> m_ram;
|
|
required_device<cassette_image_device> m_cassette;
|
|
optional_device<rs232_port_device> m_rs232;
|
|
optional_device<coco_vhd_image_device> m_vhd_0;
|
|
optional_device<coco_vhd_image_device> m_vhd_1;
|
|
|
|
// driver update handlers
|
|
DECLARE_INPUT_CHANGED_MEMBER(keyboard_changed);
|
|
DECLARE_INPUT_CHANGED_MEMBER(joystick_mode_changed);
|
|
|
|
// IO
|
|
virtual DECLARE_READ8_MEMBER( ff00_read );
|
|
virtual DECLARE_WRITE8_MEMBER( ff00_write );
|
|
virtual DECLARE_READ8_MEMBER( ff20_read );
|
|
virtual DECLARE_WRITE8_MEMBER( ff20_write );
|
|
virtual DECLARE_READ8_MEMBER( ff40_read );
|
|
virtual DECLARE_WRITE8_MEMBER( ff40_write );
|
|
DECLARE_READ8_MEMBER( ff60_read );
|
|
DECLARE_WRITE8_MEMBER( ff60_write );
|
|
|
|
// PIA0
|
|
DECLARE_WRITE8_MEMBER( pia0_pa_w );
|
|
DECLARE_WRITE8_MEMBER( pia0_pb_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia0_ca2_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia0_cb2_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia0_irq_a );
|
|
DECLARE_WRITE_LINE_MEMBER( pia0_irq_b );
|
|
|
|
// PIA1
|
|
DECLARE_READ8_MEMBER( pia1_pa_r );
|
|
DECLARE_READ8_MEMBER( pia1_pb_r );
|
|
DECLARE_WRITE8_MEMBER( pia1_pa_w );
|
|
DECLARE_WRITE8_MEMBER( pia1_pb_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia1_ca2_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia1_cb2_w );
|
|
DECLARE_WRITE_LINE_MEMBER( pia1_firq_a );
|
|
DECLARE_WRITE_LINE_MEMBER( pia1_firq_b );
|
|
|
|
// floating bus
|
|
DECLARE_READ8_MEMBER( floating_bus_read ) { return floating_bus_read(); }
|
|
|
|
DECLARE_WRITE_LINE_MEMBER( cart_w ) { cart_w((bool) state); }
|
|
protected:
|
|
// device-level overrides
|
|
virtual void device_start();
|
|
virtual void device_reset();
|
|
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
|
|
|
|
// interrupts
|
|
virtual bool firq_get_line(void);
|
|
virtual bool irq_get_line(void);
|
|
void recalculate_irq(void);
|
|
void recalculate_firq(void);
|
|
|
|
// changed handlers
|
|
virtual void pia1_pa_changed(void);
|
|
virtual void pia1_pb_changed(void);
|
|
|
|
// miscellaneous
|
|
virtual void update_keyboard_input(UINT8 value, UINT8 z);
|
|
virtual void cart_w(bool state);
|
|
virtual void update_cart_base(UINT8 *cart_base) = 0;
|
|
|
|
private:
|
|
// timer constants
|
|
static const device_timer_id TIMER_HIRES_JOYSTICK_X = 0;
|
|
static const device_timer_id TIMER_HIRES_JOYSTICK_Y = 1;
|
|
static const device_timer_id TIMER_DIECOM_LIGHTGUN = 2;
|
|
|
|
enum soundmux_status_t
|
|
{
|
|
SOUNDMUX_SEL1 = 1,
|
|
SOUNDMUX_SEL2 = 2,
|
|
SOUNDMUX_ENABLE = 4
|
|
};
|
|
|
|
enum joystick_type_t
|
|
{
|
|
JOYSTICK_NONE = 0x00,
|
|
JOYSTICK_NORMAL = 0x01,
|
|
JOYSTICK_RAT_MOUSE = 0x02,
|
|
JOYSTICK_DIECOM_LIGHT_GUN = 0x03
|
|
};
|
|
|
|
enum hires_type_t
|
|
{
|
|
HIRES_NONE = 0x00,
|
|
HIRES_RIGHT = 0x01,
|
|
HIRES_RIGHT_COCOMAX3 = 0x02,
|
|
HIRES_LEFT = 0x03,
|
|
HIRES_LEFT_COCOMAX3 = 0x04,
|
|
};
|
|
|
|
struct analog_input_t
|
|
{
|
|
ioport_port *m_input[2][2];
|
|
ioport_port *m_buttons;
|
|
|
|
UINT8 input(int joystick, int axis) const { return m_input[joystick][axis] ? m_input[joystick][axis]->read() : 0x00; }
|
|
UINT8 buttons(void) const { return m_buttons ? m_buttons->read() : 0x00; }
|
|
};
|
|
|
|
void analog_port_start(analog_input_t *analog, const char *rx_tag, const char *ry_tag, const char *lx_tag, const char *ly_tag, const char *buttons_tag);
|
|
|
|
// wrappers for configuration
|
|
joystick_type_t joystick_type(int index);
|
|
hires_type_t hires_interface_type(void);
|
|
bool is_joystick_hires(int joystick_index);
|
|
|
|
soundmux_status_t soundmux_status(void);
|
|
UINT8 sound_value(void);
|
|
void update_sound(void);
|
|
bool joyin(void);
|
|
void poll_joystick(bool *joyin, UINT8 *buttons);
|
|
void poll_keyboard(void);
|
|
void poll_hires_joystick(void);
|
|
void update_cassout(int cassout);
|
|
void update_prinout(bool prinout);
|
|
void diecom_lightgun_clock(void);
|
|
|
|
// thin wrappers for PIA output
|
|
UINT8 dac_output(void) { return m_dac_output; } // PA drives the DAC
|
|
bool sel1(void) { return m_pia_0->ca2_output() ? true : false; }
|
|
bool sel2(void) { return m_pia_0->cb2_output() ? true : false; }
|
|
bool snden(void) { return m_pia_1->cb2_output() ? true : false; }
|
|
|
|
// VHD selection
|
|
coco_vhd_image_device *current_vhd(void);
|
|
|
|
// floating bus
|
|
UINT8 floating_bus_read(void);
|
|
|
|
// disassembly override
|
|
static offs_t dasm_override(device_t &device, char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, int options);
|
|
|
|
// input ports
|
|
ioport_port *m_keyboard[7];
|
|
ioport_port *m_joystick_type_control;
|
|
ioport_port *m_joystick_hires_control;
|
|
analog_input_t m_joystick;
|
|
analog_input_t m_rat_mouse;
|
|
analog_input_t m_diecom_lightgun;
|
|
|
|
// DAC output
|
|
UINT8 m_dac_output;
|
|
|
|
// hires interface
|
|
emu_timer *m_hiresjoy_transition_timer[2];
|
|
bool m_hiresjoy_ca;
|
|
|
|
// diecom lightgun
|
|
emu_timer *m_diecom_lightgun_timer;
|
|
bool m_dclg_previous_bit;
|
|
UINT8 m_dclg_output_h;
|
|
UINT8 m_dclg_output_v;
|
|
UINT8 m_dclg_state;
|
|
UINT16 m_dclg_timer;
|
|
|
|
// VHD selection
|
|
UINT8 m_vhd_select;
|
|
|
|
// safety to prevent stack overflow when reading floating bus
|
|
bool m_in_floating_bus_read;
|
|
};
|
|
|
|
#endif // __COCO__
|