/*****************************************************************************
*
* includes/pc.h
*
****************************************************************************/
#ifndef GENPC_H_
#define GENPC_H_
#include "machine/ins8250.h"
#include "machine/i8255.h"
#include "machine/am9517a.h"
#include "machine/isa.h"
#include "machine/pc_kbdc.h"
#include "imagedev/cassette.h"
#define MCFG_IBM5160_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, IBM5160_MOTHERBOARD, 0) \
ibm5160_mb_device::static_set_cputag(*device, _cputag); \
// ======================> ibm5160_mb_device
class ibm5160_mb_device : public device_t
{
public:
// construction/destruction
ibm5160_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// inline configuration
static void static_set_cputag(device_t &device, const char *tag);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
virtual ioport_constructor device_input_ports() const;
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
void install_device(device_t *dev, offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_device_func rhandler, const char* rhandler_name, write8_device_func whandler, const char *whandler_name);
void install_device_write(device_t *dev, offs_t start, offs_t end, offs_t mask, offs_t mirror, write8_device_func whandler, const char *whandler_name);
void install_device(offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_delegate rhandler, write8_delegate whandler);
public:
required_device<cpu_device> m_maincpu;
required_device<device_t> m_pic8259;
required_device<am9517a_device> m_dma8237;
required_device<device_t> m_pit8253;
required_device<i8255_device> m_ppi8255;
required_device<device_t> m_speaker;
required_device<isa8_device> m_isabus;
required_device<pc_kbdc_device> m_pc_kbdc;
/* U73 is an LS74 - dual flip flop */
/* Q2 is set by OUT1 from the 8253 and goes to DRQ1 on the 8237 */
UINT8 m_u73_q2;
UINT8 m_out1;
int m_dma_channel;
UINT8 m_dma_offset[4];
UINT8 m_pc_spkrdata;
UINT8 m_pc_input;
bool m_cur_eop;
UINT8 m_nmi_enabled;
int m_ppi_portc_switch_high;
int m_ppi_speaker;
int m_ppi_keyboard_clear;
UINT8 m_ppi_keyb_clock;
UINT8 m_ppi_portb;
UINT8 m_ppi_clock_signal;
UINT8 m_ppi_data_signal;
UINT8 m_ppi_shift_register;
UINT8 m_ppi_shift_enable;
static IRQ_CALLBACK(pc_irq_callback);
// interface to the keyboard
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
DECLARE_WRITE_LINE_MEMBER( keyboard_data_w );
virtual DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
virtual DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
virtual DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out1_changed );
DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out2_changed );
DECLARE_WRITE_LINE_MEMBER( pc_dma_hrq_changed );
DECLARE_WRITE_LINE_MEMBER( pc_dma8237_out_eop );
DECLARE_READ8_MEMBER( pc_dma_read_byte );
DECLARE_WRITE8_MEMBER( pc_dma_write_byte );
DECLARE_READ8_MEMBER( pc_dma8237_1_dack_r );
DECLARE_READ8_MEMBER( pc_dma8237_2_dack_r );
DECLARE_READ8_MEMBER( pc_dma8237_3_dack_r );
DECLARE_WRITE8_MEMBER( pc_dma8237_1_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_2_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_3_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_0_dack_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack0_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack1_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack2_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack3_w );
DECLARE_WRITE_LINE_MEMBER( pc_cpu_line );
DECLARE_WRITE_LINE_MEMBER( pc_speaker_set_spkrdata );
const char *m_cputag;
private:
void pc_select_dma_channel(int channel, bool state);
};
// device type definition
extern const device_type IBM5160_MOTHERBOARD;
#define MCFG_IBM5150_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, IBM5150_MOTHERBOARD, 0) \
ibm5150_mb_device::static_set_cputag(*device, _cputag); \
// ======================> ibm5150_mb_device
class ibm5150_mb_device : public ibm5160_mb_device
{
public:
// construction/destruction
ibm5150_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
required_device<cassette_image_device> m_cassette;
public:
virtual DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
virtual DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
virtual DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
};
// device type definition
extern const device_type IBM5150_MOTHERBOARD;
#endif /* GENPC_H_ */