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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
RCA VIP Expansion Board VP-575 emulation
**********************************************************************/
#pragma once
#ifndef __VP575__
#define __VP575__
#include "emu.h"
#include "exp.h"
//**************************************************************************
// MACROS/CONSTANTS
//**************************************************************************
#define MAX_SLOTS 5
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> vp575_device
class vp575_device : public device_t,
public device_vip_expansion_card_interface
{
public:
// construction/destruction
vp575_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
// not really public
DECLARE_WRITE_LINE_MEMBER( exp1_int_w ) { m_int[0] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp2_int_w ) { m_int[1] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp3_int_w ) { m_int[2] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp4_int_w ) { m_int[3] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp5_int_w ) { m_int[4] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp1_dma_out_w ) { m_dma_out[0] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp2_dma_out_w ) { m_dma_out[1] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp3_dma_out_w ) { m_dma_out[2] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp4_dma_out_w ) { m_dma_out[3] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp5_dma_out_w ) { m_dma_out[4] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp1_dma_in_w ) { m_dma_in[0] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp2_dma_in_w ) { m_dma_in[1] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp3_dma_in_w ) { m_dma_in[2] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp4_dma_in_w ) { m_dma_in[3] = state; update_interrupts(); }
DECLARE_WRITE_LINE_MEMBER( exp5_dma_in_w ) { m_dma_in[4] = state; update_interrupts(); }
void update_interrupts();
protected:
// device-level overrides
virtual void device_start() override;
// device_vip_expansion_card_interface overrides
virtual uint8_t vip_program_r(address_space &space, offs_t offset, int cs, int cdef, int *minh) override;
virtual void vip_program_w(address_space &space, offs_t offset, uint8_t data, int cdef, int *minh) override;
virtual uint8_t vip_io_r(address_space &space, offs_t offset) override;
virtual void vip_io_w(address_space &space, offs_t offset, uint8_t data) override;
virtual uint8_t vip_dma_r(address_space &space, offs_t offset) override;
virtual void vip_dma_w(address_space &space, offs_t offset, uint8_t data) override;
virtual uint32_t vip_screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) override;
virtual int vip_ef1_r() override;
virtual int vip_ef3_r() override;
virtual int vip_ef4_r() override;
virtual void vip_sc_w(int data) override;
virtual void vip_q_w(int state) override;
virtual void vip_run_w(int state) override;
private:
vip_expansion_slot_device *m_expansion_slot[MAX_SLOTS];
int m_int[MAX_SLOTS];
int m_dma_out[MAX_SLOTS];
int m_dma_in[MAX_SLOTS];
};
// device type definition
extern const device_type VP575;
#endif
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