1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
// license:BSD-3-Clause
// copyright-holders:David Viens
/***************************************************************************
gic.h
GI AY-3-8800-1 (Datasheet exists as AY-3-8500-1 Graphics Interface Chip)
For the GIMINI "Challenger" programmable game system.
Really only ever used in the Unisonic Champion 2711
***************************************************************************/
#pragma once
#ifndef __GIC_H__
#define __GIC_H__
#include "emu.h"
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_GIC_ADD(_tag, _clock, _screen_tag) \
MCFG_DEVICE_ADD(_tag, GIC, _clock) \
MCFG_VIDEO_SET_SCREEN(_screen_tag)
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> gic_device
//Palette entries
#define GIC_BLACK 0
#define GIC_RED 1
#define GIC_GREEN 2
#define GIC_WHITE 3
#define GIC_CHAR_W 6
#define GIC_CHAR_H 8
#define GIC_LEFT_H 12
#define GIC_LEFT_W 6
#define GIC_RIGHT_H 6
#define GIC_RIGHT_W 13
class gic_device : public device_t
, public device_sound_interface
, public device_video_interface
{
public:
// construction/destruction
gic_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
gic_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, int lines, const char *shortname, const char *source);
// static configuration helpers
static void set_screen_tag(device_t &device, const char *screen_tag) { downcast<gic_device &>(device).m_screen_tag = screen_tag; }
DECLARE_PALETTE_INIT(gic);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
inline bitmap_ind16 *get_bitmap() { return &m_bitmap; }
//plgDavid please change this to a MESS friendly handshake
void set_shared_memory(const UINT8*m){ m_ram = m;};
// Global constants (non mesured figures)
static const int START_ACTIVE_SCAN = 10;
static const int BORDER_SIZE = GIC_CHAR_W*3;
static const int END_ACTIVE_SCAN = 10 + GIC_CHAR_W*2 + 150 + GIC_CHAR_W*2;
static const int START_Y = 1;
static const int SCREEN_HEIGHT = GIC_CHAR_H*(GIC_LEFT_H+2);
static const int LINE_CLOCKS = 455;
static const int LINES = 262;
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
// device_sound_interface overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
/* timers */
static const device_timer_id TIMER_VBLANK = 0;
void draw_char_left (int x, int y, UINT8 code, bitmap_ind16 &bitmap);
void draw_char_right(int x, int y, UINT8 code, bitmap_ind16 &bitmap,int bg_col);
bitmap_ind16 m_bitmap;
UINT8 * m_cgrom; // internal chargen ROM
emu_timer *m_vblank_timer;
sound_stream *m_stream;
int m_audiocnt;
int m_audioval;
int m_audioreset;
const UINT8* m_ram;
};
// device type definition
extern const device_type GIC;
#endif /* __GIC_H__ */
|