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/**********************************************************************
RCA CDP1864C COS/MOS PAL Compatible Color TV Interface
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
INLACE 1 |* \_/ | 40 Vdd
CLK IN_ 2 | | 39 AUD
CLR OUT_ 3 | | 38 CLR IN_
AOE 4 | | 37 DMA0_
SC1 5 | | 36 INT_
SC0 6 | | 35 TPA
MRD_ 7 | | 34 TPB
BUS 7 8 | | 33 EVS
BUS 6 9 | | 32 V SYNC
BUS 5 10 | CDP1864 | 31 H SYNC
BUS 4 11 | | 30 C SYNC_
BUS 3 12 | | 29 RED
BUS 2 13 | | 28 BLUE
BUS 1 14 | | 27 GREEN
BUS 0 15 | | 26 BCK GND_
CON_ 16 | | 25 BURST
N2 17 | | 24 ALT
EF_ 18 | | 23 R DATA
N0 19 | | 22 G DATA
Vss 20 |_____________| 21 B DATA
http://homepage.mac.com/ruske/cosmacelf/cdp1864.pdf
**********************************************************************/
#pragma once
#ifndef __CDP1864__
#define __CDP1864__
#include "emu.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define CDP1864_CLOCK XTAL_1_75MHz
#define CDP1864_VISIBLE_COLUMNS 64
#define CDP1864_VISIBLE_LINES 192
#define CDP1864_HBLANK_END 1 * 8
#define CDP1864_HBLANK_START 13 * 8
#define CDP1864_HSYNC_START 0 * 8
#define CDP1864_HSYNC_END 1 * 8
#define CDP1864_SCREEN_START 4 * 8
#define CDP1864_SCREEN_END 12 * 8
#define CDP1864_SCREEN_WIDTH 14 * 8
#define CDP1864_TOTAL_SCANLINES 312
#define CDP1864_SCANLINE_VBLANK_START CDP1864_TOTAL_SCANLINES - 4
#define CDP1864_SCANLINE_VBLANK_END 20
#define CDP1864_SCANLINE_VSYNC_START 0
#define CDP1864_SCANLINE_VSYNC_END 4
#define CDP1864_SCANLINE_DISPLAY_START 60 // ???
#define CDP1864_SCANLINE_DISPLAY_END CDP1864_SCANLINE_DISPLAY_START + CDP1864_VISIBLE_LINES
#define CDP1864_SCANLINE_INT_START CDP1864_SCANLINE_DISPLAY_START - 2
#define CDP1864_SCANLINE_INT_END CDP1864_SCANLINE_DISPLAY_START
#define CDP1864_SCANLINE_EFX_TOP_START CDP1864_SCANLINE_DISPLAY_START - 4
#define CDP1864_SCANLINE_EFX_TOP_END CDP1864_SCANLINE_DISPLAY_START
#define CDP1864_SCANLINE_EFX_BOTTOM_START CDP1864_SCANLINE_DISPLAY_END - 4
#define CDP1864_SCANLINE_EFX_BOTTOM_END CDP1864_SCANLINE_DISPLAY_END
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_CDP1864_ADD(_tag, _clock, _config) \
MCFG_SOUND_ADD(_tag, CDP1864, _clock) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_CDP1864_SCREEN_ADD(_tag, _clock) \
MCFG_SCREEN_ADD(_tag, RASTER) \
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) \
MCFG_SCREEN_RAW_PARAMS(_clock, CDP1864_SCREEN_WIDTH, CDP1864_HBLANK_END, CDP1864_HBLANK_START, CDP1864_TOTAL_SCANLINES, CDP1864_SCANLINE_VBLANK_END, CDP1864_SCANLINE_VBLANK_START)
#define CDP1864_INTERFACE(name) \
const cdp1864_interface (name) =
#define CDP1864_NON_INTERLACED \
DEVCB_LINE_VCC
#define CDP1864_INTERLACED \
DEVCB_LINE_GND
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> cdp1864_interface
struct cdp1864_interface
{
const char *m_cpu_tag;
const char *m_screen_tag;
devcb_read_line m_in_inlace_cb;
devcb_read_line m_in_rdata_cb;
devcb_read_line m_in_bdata_cb;
devcb_read_line m_in_gdata_cb;
devcb_write_line m_out_int_cb;
devcb_write_line m_out_dmao_cb;
devcb_write_line m_out_efx_cb;
devcb_write_line m_out_hsync_cb;
double m_res_r; // red output resistor value
double m_res_g; // green output resistor value
double m_res_b; // blue output resistor value
double m_res_bkg; // background output resistor value
};
// ======================> cdp1864_device
class cdp1864_device : public device_t,
public device_sound_interface,
public cdp1864_interface
{
public:
// construction/destruction
cdp1864_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_READ8_MEMBER( dispon_r );
DECLARE_READ8_MEMBER( dispoff_r );
DECLARE_WRITE8_MEMBER( step_bgcolor_w );
DECLARE_WRITE8_MEMBER( tone_latch_w );
DECLARE_WRITE8_MEMBER( dma_w );
DECLARE_WRITE_LINE_MEMBER( con_w );
DECLARE_WRITE_LINE_MEMBER( aoe_w );
DECLARE_WRITE_LINE_MEMBER( evs_w );
void update_screen(bitmap_t &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// internal callbacks
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private:
inline void initialize_palette();
static const device_timer_id TIMER_INT = 0;
static const device_timer_id TIMER_EFX = 1;
static const device_timer_id TIMER_DMA = 2;
static const device_timer_id TIMER_HSYNC = 3;
devcb_resolved_read_line m_in_inlace_func;
devcb_resolved_read_line m_in_rdata_func;
devcb_resolved_read_line m_in_bdata_func;
devcb_resolved_read_line m_in_gdata_func;
devcb_resolved_write_line m_out_int_func;
devcb_resolved_write_line m_out_dmao_func;
devcb_resolved_write_line m_out_efx_func;
devcb_resolved_write_line m_out_hsync_func;
cpu_device *m_cpu;
screen_device *m_screen; // screen
bitmap_t *m_bitmap; // bitmap
sound_stream *m_stream; // sound output
// video state
int m_disp; // display on
int m_dmaout; // DMA request active
int m_bgcolor; // background color
int m_con; // color on
// sound state
int m_aoe; // audio on
int m_latch; // sound latch
INT16 m_signal; // current signal
int m_incr; // initial wave state
// timers
emu_timer *m_int_timer;
emu_timer *m_efx_timer;
emu_timer *m_dma_timer;
emu_timer *m_hsync_timer;
};
// device type definition
extern const device_type CDP1864;
#endif
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