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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Luxor ABC 1600 Mover emulation
**********************************************************************/
#pragma once
#ifndef __ABC1600_MOVER__
#define __ABC1600_MOVER__
#include "emu.h"
#include "video/mc6845.h"
///*************************************************************************
// INTERFACE CONFIGURATION MACROS
///*************************************************************************
#define ABC1600_MOVER_TAG "mover"
#define MCFG_ABC1600_MOVER_ADD() \
MCFG_DEVICE_ADD(ABC1600_MOVER_TAG, ABC1600_MOVER, 0)
///*************************************************************************
// TYPE DEFINITIONS
///*************************************************************************
// ======================> abc1600_mover_device
class abc1600_mover_device : public device_t,
public device_memory_interface
{
public:
// construction/destruction
abc1600_mover_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
virtual DECLARE_ADDRESS_MAP(vram_map, 8);
virtual DECLARE_ADDRESS_MAP(crtc_map, 8);
virtual DECLARE_ADDRESS_MAP(io_map, 8);
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
MC6845_UPDATE_ROW(crtc_update_row);
MC6845_ON_UPDATE_ADDR_CHANGED(crtc_update);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_memory_interface overrides
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
private:
inline UINT16 get_drmsk();
inline void get_shinf();
inline UINT16 get_wrmsk();
inline UINT16 barrel_shift(UINT16 gmdr);
inline UINT16 word_mixer(UINT16 rot);
inline void clock_mfa_x();
inline void clock_mfa_y();
inline void clock_mta_x();
inline void clock_mta_y();
inline void load_mfa_x();
inline void load_mta_x();
inline void compare_mta_x();
inline void compare_mta_y();
inline void load_xy_reg();
void mover();
DECLARE_READ8_MEMBER( video_ram_r );
DECLARE_WRITE8_MEMBER( video_ram_w );
DECLARE_READ8_MEMBER( iord0_r );
DECLARE_WRITE8_MEMBER( ldsx_hb_w );
DECLARE_WRITE8_MEMBER( ldsx_lb_w );
DECLARE_WRITE8_MEMBER( ldsy_hb_w );
DECLARE_WRITE8_MEMBER( ldsy_lb_w );
DECLARE_WRITE8_MEMBER( ldtx_hb_w );
DECLARE_WRITE8_MEMBER( ldtx_lb_w );
DECLARE_WRITE8_MEMBER( ldty_hb_w );
DECLARE_WRITE8_MEMBER( ldty_lb_w );
DECLARE_WRITE8_MEMBER( ldfx_hb_w );
DECLARE_WRITE8_MEMBER( ldfx_lb_w );
DECLARE_WRITE8_MEMBER( ldfy_hb_w );
DECLARE_WRITE8_MEMBER( ldfy_lb_w );
DECLARE_WRITE8_MEMBER( wrml_w );
DECLARE_WRITE8_MEMBER( wrdl_w );
DECLARE_WRITE8_MEMBER( wrmask_strobe_hb_w );
DECLARE_WRITE8_MEMBER( wrmask_strobe_lb_w );
DECLARE_WRITE8_MEMBER( enable_clocks_w );
DECLARE_WRITE8_MEMBER( flag_strobe_w );
DECLARE_WRITE8_MEMBER( endisp_w );
inline UINT16 read_videoram(offs_t offset);
inline void write_videoram(offs_t offset, UINT16 data, UINT16 mask);
inline UINT16 get_crtca(UINT16 ma, UINT8 ra, UINT8 column);
const address_space_config m_space_config;
required_device<mc6845_device> m_crtc;
required_device<palette_device> m_palette;
required_region_ptr<UINT16> m_wrmsk_rom;
required_region_ptr<UINT8> m_shinf_rom;
required_region_ptr<UINT16> m_drmsk_rom;
int m_endisp; // enable display
int m_clocks_disabled; // clocks disabled
UINT16 m_gmdi; // video RAM data latch
UINT16 m_wrm; // write mask latch
UINT8 m_ms[16]; // mover sequence control
UINT8 m_ds[16]; // display sequence control
UINT8 m_flag; // flags
UINT16 m_xsize; // X size
UINT16 m_ysize; // Y size
int m_udx; // up/down X
int m_udy; // up/down Y
UINT16 m_xfrom; // X from
UINT16 m_xto; // X to
UINT16 m_yto; // Y to
UINT16 m_ty; // to Y
UINT32 m_mfa; // mover from address
UINT32 m_mta; // mover to address
UINT8 m_sh; //
UINT16 m_mdor; //
int m_hold_1w_cyk; //
int m_wrms0; //
int m_wrms1; //
int m_rmc; // row match count
int m_cmc; // column match count
int m_amm; // active mover mask
};
// device type definition
extern const device_type ABC1600_MOVER;
#endif
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