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Diffstat (limited to 'src/mame/drivers/if800.c')
-rw-r--r--src/mame/drivers/if800.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/mame/drivers/if800.c b/src/mame/drivers/if800.c
new file mode 100644
index 00000000000..610269b9642
--- /dev/null
+++ b/src/mame/drivers/if800.c
@@ -0,0 +1,117 @@
+// license:BSD-3-Clause
+// copyright-holders:Angelo Salese
+/***************************************************************************
+
+ if800
+
+****************************************************************************/
+
+
+#include "emu.h"
+#include "cpu/i86/i86.h"
+#include "machine/pic8259.h"
+#include "video/upd7220.h"
+
+
+class if800_state : public driver_device
+{
+public:
+ if800_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_hgdc(*this, "upd7220"),
+ m_video_ram(*this, "video_ram"),
+ m_maincpu(*this, "maincpu"),
+ m_palette(*this, "palette") { }
+
+ required_device<upd7220_device> m_hgdc;
+
+ required_shared_ptr<UINT16> m_video_ram;
+ virtual void machine_start();
+ virtual void machine_reset();
+ required_device<cpu_device> m_maincpu;
+ required_device<palette_device> m_palette;
+ UPD7220_DISPLAY_PIXELS_MEMBER( hgdc_display_pixels );
+};
+
+UPD7220_DISPLAY_PIXELS_MEMBER( if800_state::hgdc_display_pixels )
+{
+ const rgb_t *palette = m_palette->palette()->entry_list_raw();
+
+ int xi,gfx;
+ UINT8 pen;
+
+ gfx = m_video_ram[address >> 1];
+
+ for(xi=0;xi<16;xi++)
+ {
+ pen = ((gfx >> xi) & 1) ? 1 : 0;
+
+ bitmap.pix32(y, x + xi) = palette[pen];
+ }
+}
+
+static ADDRESS_MAP_START(if800_map, AS_PROGRAM, 16, if800_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00000,0x0ffff) AM_RAM
+ AM_RANGE(0xfe000,0xfffff) AM_ROM AM_REGION("ipl", 0)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(if800_io, AS_IO, 16, if800_state)
+ ADDRESS_MAP_UNMAP_HIGH
+// AM_RANGE(0x0640, 0x065f) dma?
+ AM_RANGE(0x0660, 0x0663) AM_DEVREADWRITE8("upd7220", upd7220_device, read, write,0x00ff)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( if800 )
+INPUT_PORTS_END
+
+void if800_state::machine_start()
+{
+}
+
+
+void if800_state::machine_reset()
+{
+}
+
+static ADDRESS_MAP_START( upd7220_map, AS_0, 16, if800_state )
+ AM_RANGE(0x00000, 0x3ffff) AM_RAM AM_SHARE("video_ram")
+ADDRESS_MAP_END
+
+static MACHINE_CONFIG_START( if800, if800_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", I8086, 8000000)
+ MCFG_CPU_PROGRAM_MAP(if800_map)
+ MCFG_CPU_IO_MAP(if800_io)
+
+
+// MCFG_PIC8259_ADD( "pic8259", if800_pic8259_config )
+ MCFG_DEVICE_ADD("upd7220", UPD7220, 8000000/4)
+ MCFG_DEVICE_ADDRESS_MAP(AS_0, upd7220_map)
+ MCFG_UPD7220_DISPLAY_PIXELS_CALLBACK_OWNER(if800_state, hgdc_display_pixels)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_SIZE(640, 480)
+ MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
+ MCFG_SCREEN_UPDATE_DEVICE("upd7220", upd7220_device, screen_update)
+
+ MCFG_PALETTE_ADD("palette", 8)
+// MCFG_PALETTE_INIT(black_and_white)
+
+// MCFG_VIDEO_START_OVERRIDE(if800_state,if800)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( if800 )
+ ROM_REGION( 0x2000, "ipl", ROMREGION_ERASEFF )
+ ROM_LOAD( "ipl.rom", 0x0000, 0x2000, CRC(36212491) SHA1(6eaa8885e2dccb6dd86def6c0c9be1870cee957f))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1985, if800, 0, 0, if800, if800, driver_device, 0, "Oki Electric", "if800 model 60", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)