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Diffstat (limited to 'trunk/src/emu/video/crt9007.h')
-rw-r--r-- | trunk/src/emu/video/crt9007.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/trunk/src/emu/video/crt9007.h b/trunk/src/emu/video/crt9007.h new file mode 100644 index 00000000000..7bd30549fab --- /dev/null +++ b/trunk/src/emu/video/crt9007.h @@ -0,0 +1,208 @@ +/********************************************************************** + + SMC CRT9007 CRT Video Processor and Controller (VPAC) emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +********************************************************************** + _____ _____ + VA2 1 |* \_/ | 40 GND + VA10 2 | | 39 VA9 + VA3 3 | | 38 VA1 + VA11 4 | | 37 VA8 + VA12 5 | | 36 VA0 + VA4 6 | | 35 CBLANK + VA13 7 | | 34 CURS + VA5 8 | | 33 ACK/_TSC + VA6 9 | | 32 _CSYNC/LPSTB + VA7 10 | CRT9007 | 31 SLD/SL0 + VLT 11 | | 30 _SLG/SL1 + _VS 12 | | 29 WBEN/SL2/_CSYNC + _HS 13 | | 28 DMAR/SL3/VBLANK + _CCLK 14 | | 27 INT + _DRB 15 | | 26 _RST + VD7 16 | | 25 _CS + VD6 17 | | 24 VD0 + VD5 18 | | 23 VD1 + VD4 19 | | 22 VD2 + VD3 20 |_____________| 21 +5V + +**********************************************************************/ + +#pragma once + +#ifndef __CRT9007__ +#define __CRT9007__ + +#include "emu.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_CRT9007_ADD(_tag, _clock, _config, _map) \ + MCFG_DEVICE_ADD(_tag, CRT9007, _clock) \ + MCFG_DEVICE_CONFIG(_config) \ + MCFG_DEVICE_ADDRESS_MAP(AS_0, _map) + + +#define CRT9007_INTERFACE(name) \ + const crt9007_interface (name) = + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + + +// ======================> crt9007_interface + +struct crt9007_interface +{ + const char *m_screen_tag; /* screen we are acting on */ + int hpixels_per_column; /* number of pixels per video memory address */ + + devcb_write_line m_out_int_cb; + devcb_write_line m_out_dmar_cb; + + devcb_write_line m_out_vs_cb; + devcb_write_line m_out_hs_cb; + + devcb_write_line m_out_vlt_cb; + devcb_write_line m_out_curs_cb; + devcb_write_line m_out_drb_cb; + devcb_write_line m_out_cblank_cb; + + devcb_write_line m_out_slg_cb; + devcb_write_line m_out_sld_cb; +}; + + + +// ======================> crt9007_device + +class crt9007_device : public device_t, + public device_memory_interface, + public crt9007_interface +{ +public: + // construction/destruction + crt9007_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + DECLARE_READ8_MEMBER( read ); + DECLARE_WRITE8_MEMBER( write ); + DECLARE_WRITE_LINE_MEMBER( ack_w ); + DECLARE_WRITE_LINE_MEMBER( lpstb_w ); + DECLARE_READ_LINE_MEMBER( vlt_r ); + DECLARE_READ_LINE_MEMBER( wben_r ); + + void set_hpixels_per_column(int hpixels_per_column); + +protected: + // device-level overrides + virtual void device_config_complete(); + virtual void device_start(); + virtual void device_reset(); + virtual void device_clock_changed(); + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + + // device_memory_interface overrides + virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const; + +private: + static const device_timer_id TIMER_HSYNC = 0; + static const device_timer_id TIMER_VSYNC = 1; + static const device_timer_id TIMER_VLT = 2; + static const device_timer_id TIMER_CURS = 3; + static const device_timer_id TIMER_DRB = 4; + static const device_timer_id TIMER_DMA = 5; + + inline UINT8 readbyte(offs_t address); + + inline void trigger_interrupt(int line); + inline void update_cblank_line(); + inline void update_hsync_timer(int state); + inline void update_vsync_timer(int state); + inline void update_vlt_timer(int state); + inline void update_curs_timer(int state); + inline void update_drb_timer(int state); + inline void update_dma_timer(); + + inline void recompute_parameters(); + + devcb_resolved_write_line m_out_int_func; + devcb_resolved_write_line m_out_dmar_func; + devcb_resolved_write_line m_out_hs_func; + devcb_resolved_write_line m_out_vs_func; + devcb_resolved_write_line m_out_vlt_func; + devcb_resolved_write_line m_out_curs_func; + devcb_resolved_write_line m_out_drb_func; + devcb_resolved_write_line m_out_cblank_func; + devcb_resolved_write_line m_out_slg_func; + devcb_resolved_write_line m_out_sld_func; + + screen_device *m_screen; + + // registers + UINT8 m_reg[0x3d]; + UINT8 m_status; + + int m_disp; + int m_hpixels_per_column; + + // runtime variables, do not state save + int m_vsync_start; + int m_vsync_end; + int m_hsync_start; + int m_hsync_end; + int m_vlt_start; + int m_vlt_end; + int m_vlt_bottom; + int m_drb_bottom; + int m_hs; + int m_vs; + int m_cblank; + int m_vlt; + int m_drb; + int m_wben; + int m_slg; + int m_sld; + int m_lpstb; + + // DMA + int m_dmar; + int m_ack; + int m_dma_count; + int m_dma_burst; + int m_dma_delay; + + // timers + emu_timer *m_vsync_timer; + emu_timer *m_hsync_timer; + emu_timer *m_vlt_timer; + emu_timer *m_curs_timer; + emu_timer *m_drb_timer; + emu_timer *m_dma_timer; + + // address space configurations + const address_space_config m_space_config; +}; + + +// device type definition +extern const device_type CRT9007; + + + +#endif |