summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/bus/isa/svga_cirrus.c
blob: 03e2413e984884e7ca1634a5b4b177c45c58f86d (plain) (blame)
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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
/***************************************************************************

  ISA SVGA Cirrus Logic wrapper

***************************************************************************/

#include "emu.h"
#include "svga_cirrus.h"

ROM_START( dm_clgd5430 )
	ROM_REGION(0x8000,"dm_clgd5430", 0)
	ROM_LOAD("speedstar_pro_se_v1.00.u2", 0x00000, 0x8000, CRC(ed79572c) SHA1(15131e2b2db7a34971083a250e4a21ab7bd64a9d) )
	ROM_IGNORE( 0x8000 )
ROM_END

//**************************************************************************
//  GLOBAL VARIABLES
//**************************************************************************

const device_type ISA16_SVGA_CIRRUS = &device_creator<isa16_svga_cirrus_device>;
const device_type ISA16_SVGA_CIRRUS_GD542X = &device_creator<isa16_svga_cirrus_gd542x_device>;

static MACHINE_CONFIG_FRAGMENT( vga_cirrus )
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_RAW_PARAMS(XTAL_25_1748MHz,900,0,640,526,0,480)
	MCFG_SCREEN_UPDATE_DEVICE("vga", cirrus_gd5430_device, screen_update)

	MCFG_PALETTE_ADD("palette", 0x100)

	MCFG_DEVICE_ADD("vga", CIRRUS_GD5430, 0)
MACHINE_CONFIG_END

//-------------------------------------------------
//  machine_config_additions - device-specific
//  machine configurations
//-------------------------------------------------

machine_config_constructor isa16_svga_cirrus_device::device_mconfig_additions() const
{
	return MACHINE_CONFIG_NAME( vga_cirrus );
}

//-------------------------------------------------
//  rom_region - device-specific ROM region
//-------------------------------------------------

const rom_entry *isa16_svga_cirrus_device::device_rom_region() const
{
	return ROM_NAME( dm_clgd5430 );
}

//**************************************************************************
//  LIVE DEVICE
//**************************************************************************

//-------------------------------------------------
//  isa16_vga_device - constructor
//-------------------------------------------------

isa16_svga_cirrus_device::isa16_svga_cirrus_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
		device_t(mconfig, ISA16_SVGA_CIRRUS, "Diamond Speedstar Pro SE ISA Graphics Card (BIOS v1.00)", tag, owner, clock, "dm_clgd5430", __FILE__),
		device_isa16_card_interface(mconfig, *this)
{
}

//-------------------------------------------------
//  device_start - device-specific startup
//-------------------------------------------------
READ8_MEMBER(isa16_svga_cirrus_device::input_port_0_r ) { return 0xff; } //return space.machine().root_device().ioport("IN0")->read(); }

void isa16_svga_cirrus_device::device_start()
{
	set_isa_device();

	m_vga = subdevice<cirrus_gd5430_device>("vga");

	m_isa->install_rom(this, 0xc0000, 0xc7fff, 0, 0, "svga", "dm_clgd5430");

	m_isa->install_device(0x03b0, 0x03bf, 0, 0, read8_delegate(FUNC(cirrus_gd5430_device::port_03b0_r),m_vga), write8_delegate(FUNC(cirrus_gd5430_device::port_03b0_w),m_vga));
	m_isa->install_device(0x03c0, 0x03cf, 0, 0, read8_delegate(FUNC(cirrus_gd5430_device::port_03c0_r),m_vga), write8_delegate(FUNC(cirrus_gd5430_device::port_03c0_w),m_vga));
	m_isa->install_device(0x03d0, 0x03df, 0, 0, read8_delegate(FUNC(cirrus_gd5430_device::port_03d0_r),m_vga), write8_delegate(FUNC(cirrus_gd5430_device::port_03d0_w),m_vga));

	m_isa->install_memory(0xa0000, 0xbffff, 0, 0, read8_delegate(FUNC(cirrus_gd5430_device::mem_r),m_vga), write8_delegate(FUNC(cirrus_gd5430_device::mem_w),m_vga));
}

//-------------------------------------------------
//  device_reset - device-specific reset
//-------------------------------------------------

void isa16_svga_cirrus_device::device_reset()
{
}


/*
    Generic CL-GD542x video card
*/

ROM_START( clgd542x )
	ROM_REGION(0x08000, "clgd542x", 0)
	ROM_LOAD16_BYTE("techyosd-isa-bios-v1.2.u8",     0x00000, 0x04000, CRC(6adf7e71) SHA1(2b07d964cc7c2c0aa560625b7c12f38d4537d652) )
	ROM_CONTINUE(                                    0x00001, 0x04000 )
ROM_END

//**************************************************************************
//  GLOBAL VARIABLES
//**************************************************************************

static MACHINE_CONFIG_FRAGMENT( vga_cirrus_gd542x )
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_RAW_PARAMS(XTAL_25_1748MHz,900,0,640,526,0,480)
	MCFG_SCREEN_UPDATE_DEVICE("vga", cirrus_gd5428_device, screen_update)

	MCFG_PALETTE_ADD("palette", 0x100)

	MCFG_DEVICE_ADD("vga", CIRRUS_GD5428, 0)
MACHINE_CONFIG_END

//-------------------------------------------------
//  machine_config_additions - device-specific
//  machine configurations
//-------------------------------------------------

machine_config_constructor isa16_svga_cirrus_gd542x_device::device_mconfig_additions() const
{
	return MACHINE_CONFIG_NAME( vga_cirrus_gd542x );
}

//-------------------------------------------------
//  rom_region - device-specific ROM region
//-------------------------------------------------

const rom_entry *isa16_svga_cirrus_gd542x_device::device_rom_region() const
{
	return ROM_NAME( clgd542x );
}

//**************************************************************************
//  LIVE DEVICE
//**************************************************************************

//-------------------------------------------------
//  isa16_vga_device - constructor
//-------------------------------------------------

isa16_svga_cirrus_gd542x_device::isa16_svga_cirrus_gd542x_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
		device_t(mconfig, ISA16_SVGA_CIRRUS_GD542X, "Generic Cirrus Logic GD542x Graphics Card (BIOS v1.20)", tag, owner, clock, "clgd542x", __FILE__),
		device_isa16_card_interface(mconfig, *this)
{
}

//-------------------------------------------------
//  device_start - device-specific startup
//-------------------------------------------------
READ8_MEMBER(isa16_svga_cirrus_gd542x_device::input_port_0_r ) { return 0xff; } //return space.machine().root_device().ioport("IN0")->read(); }

void isa16_svga_cirrus_gd542x_device::device_start()
{
	set_isa_device();

	m_vga = subdevice<cirrus_gd5428_device>("vga");

	m_isa->install_rom(this, 0xc0000, 0xc7fff, 0, 0, "svga", "clgd542x");

	m_isa->install_device(0x03b0, 0x03bf, 0, 0, read8_delegate(FUNC(cirrus_gd5428_device::port_03b0_r),m_vga), write8_delegate(FUNC(cirrus_gd5428_device::port_03b0_w),m_vga));
	m_isa->install_device(0x03c0, 0x03cf, 0, 0, read8_delegate(FUNC(cirrus_gd5428_device::port_03c0_r),m_vga), write8_delegate(FUNC(cirrus_gd5428_device::port_03c0_w),m_vga));
	m_isa->install_device(0x03d0, 0x03df, 0, 0, read8_delegate(FUNC(cirrus_gd5428_device::port_03d0_r),m_vga), write8_delegate(FUNC(cirrus_gd5428_device::port_03d0_w),m_vga));

	m_isa->install_memory(0xa0000, 0xbffff, 0, 0, read8_delegate(FUNC(cirrus_gd5428_device::mem_r),m_vga), write8_delegate(FUNC(cirrus_gd5428_device::mem_w),m_vga));
}

//-------------------------------------------------
//  device_reset - device-specific reset
//-------------------------------------------------

void isa16_svga_cirrus_gd542x_device::device_reset()
{
}