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Diffstat (limited to 'src/devices/bus/isa/svga_tseng.c')
-rw-r--r--src/devices/bus/isa/svga_tseng.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/devices/bus/isa/svga_tseng.c b/src/devices/bus/isa/svga_tseng.c
new file mode 100644
index 00000000000..d1be1f4ec9b
--- /dev/null
+++ b/src/devices/bus/isa/svga_tseng.c
@@ -0,0 +1,94 @@
+// license:BSD-3-Clause
+// copyright-holders:Barry Rodewald
+/***************************************************************************
+
+ ISA SVGA Tseng wrapper
+
+***************************************************************************/
+
+#include "emu.h"
+#include "svga_tseng.h"
+#include "video/pc_vga.h"
+
+ROM_START( et4000 )
+ ROM_REGION(0x8000,"et4000", 0)
+ ROM_LOAD("et4000.bin", 0x00000, 0x8000, CRC(f1e817a8) SHA1(945d405b0fb4b8f26830d495881f8587d90e5ef9) )
+ROM_END
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type ISA8_SVGA_ET4K = &device_creator<isa8_svga_et4k_device>;
+
+
+static MACHINE_CONFIG_FRAGMENT( vga_tseng )
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_RAW_PARAMS(XTAL_25_1748MHz,900,0,640,526,0,480)
+ MCFG_SCREEN_UPDATE_DEVICE("vga", tseng_vga_device, screen_update)
+
+ MCFG_PALETTE_ADD("palette", 0x100)
+
+ MCFG_DEVICE_ADD("vga", TSENG_VGA, 0)
+MACHINE_CONFIG_END
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor isa8_svga_et4k_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( vga_tseng );
+}
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *isa8_svga_et4k_device::device_rom_region() const
+{
+ return ROM_NAME( et4000 );
+}
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// isa8_vga_device - constructor
+//-------------------------------------------------
+
+isa8_svga_et4k_device::isa8_svga_et4k_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, ISA8_SVGA_ET4K, "SVGA Tseng ET4000 Graphics Card", tag, owner, clock, "et4000", __FILE__),
+ device_isa8_card_interface(mconfig, *this)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+READ8_MEMBER(isa8_svga_et4k_device::input_port_0_r ) { return 0xff; } //return space.machine().root_device().ioport("IN0")->read(); }
+
+void isa8_svga_et4k_device::device_start()
+{
+ set_isa_device();
+
+ m_vga = subdevice<tseng_vga_device>("vga");
+
+ m_isa->install_rom(this, 0xc0000, 0xc7fff, 0, 0, "et4000", "et4000");
+
+ m_isa->install_device(0x3b0, 0x3bf, 0, 0, read8_delegate(FUNC(tseng_vga_device::port_03b0_r),m_vga), write8_delegate(FUNC(tseng_vga_device::port_03b0_w),m_vga));
+ m_isa->install_device(0x3c0, 0x3cf, 0, 0, read8_delegate(FUNC(tseng_vga_device::port_03c0_r),m_vga), write8_delegate(FUNC(tseng_vga_device::port_03c0_w),m_vga));
+ m_isa->install_device(0x3d0, 0x3df, 0, 0, read8_delegate(FUNC(tseng_vga_device::port_03d0_r),m_vga), write8_delegate(FUNC(tseng_vga_device::port_03d0_w),m_vga));
+
+ m_isa->install_memory(0xa0000, 0xbffff, 0, 0, read8_delegate(FUNC(tseng_vga_device::mem_r),m_vga), write8_delegate(FUNC(tseng_vga_device::mem_w),m_vga));
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void isa8_svga_et4k_device::device_reset()
+{
+}