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-rw-r--r--src/mess/drivers/mz6500.c209
1 files changed, 209 insertions, 0 deletions
diff --git a/src/mess/drivers/mz6500.c b/src/mess/drivers/mz6500.c
new file mode 100644
index 00000000000..dcb8dd72791
--- /dev/null
+++ b/src/mess/drivers/mz6500.c
@@ -0,0 +1,209 @@
+/***************************************************************************
+
+ Sharp MZ-6500
+
+
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/i86/i86.h"
+#include "machine/upd765.h"
+#include "video/upd7220.h"
+
+class mz6500_state : public driver_device
+{
+public:
+ mz6500_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_hgdc(*this, "upd7220"),
+ m_fdc(*this, "upd765")
+ ,
+ m_video_ram(*this, "video_ram"){ }
+
+ required_device<upd7220_device> m_hgdc;
+ required_device<device_t> m_fdc;
+ DECLARE_READ8_MEMBER(fdc_r);
+ DECLARE_WRITE8_MEMBER(fdc_w);
+ DECLARE_READ8_MEMBER(mz6500_vram_r);
+ DECLARE_WRITE8_MEMBER(mz6500_vram_w);
+ DECLARE_WRITE_LINE_MEMBER(fdc_irq);
+ DECLARE_WRITE_LINE_MEMBER(fdc_drq);
+ required_shared_ptr<UINT8> m_video_ram;
+};
+
+static UPD7220_DISPLAY_PIXELS( hgdc_display_pixels )
+{
+ mz6500_state *state = device->machine().driver_data<mz6500_state>();
+ int gfx[3];
+ UINT8 i,pen;
+
+ gfx[0] = state->m_video_ram[address + 0x00000];
+ gfx[1] = state->m_video_ram[address + 0x10000];
+ gfx[2] = state->m_video_ram[address + 0x20000];
+
+ for(i=0; i<8; i++)
+ {
+ pen = (BIT(gfx[0], i)) | (BIT(gfx[1], i) << 1) | (BIT(gfx[2], i) << 2);
+
+ bitmap.pix16(y, x + i) = pen;
+ }
+}
+
+
+static VIDEO_START( mz6500 )
+{
+}
+
+
+READ8_MEMBER( mz6500_state::fdc_r )
+{
+ return (offset) ? upd765_data_r(m_fdc, 0) : upd765_status_r(m_fdc, 0);
+}
+
+WRITE8_MEMBER( mz6500_state::fdc_w )
+{
+ if(offset)
+ upd765_data_w(m_fdc, 0, data);
+}
+
+READ8_MEMBER( mz6500_state::mz6500_vram_r )
+{
+ return m_video_ram[offset];
+}
+
+WRITE8_MEMBER( mz6500_state::mz6500_vram_w )
+{
+ m_video_ram[offset] = data;
+}
+
+static ADDRESS_MAP_START(mz6500_map, AS_PROGRAM, 16, mz6500_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00000,0x9ffff) AM_RAM
+// AM_RANGE(0xa0000,0xbffff) kanji/dictionary ROM
+ AM_RANGE(0xc0000,0xeffff) AM_READWRITE8(mz6500_vram_r,mz6500_vram_w,0xffff)
+ AM_RANGE(0xfc000,0xfffff) AM_ROM AM_REGION("ipl", 0)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(mz6500_io, AS_IO, 16, mz6500_state)
+ ADDRESS_MAP_UNMAP_HIGH
+// AM_RANGE(0x0000, 0x000f) i8237 dma
+// AM_RANGE(0x0010, 0x001f) i8255
+ AM_RANGE(0x0020, 0x0021) AM_MIRROR(0xe) AM_READWRITE8(fdc_r,fdc_w,0xffff)
+// AM_RANGE(0x0030, 0x003f) i8259 master
+// AM_RANGE(0x0040, 0x004f) i8259 slave
+// AM_RANGE(0x0050, 0x0050) segment byte for DMA
+// AM_RANGE(0x0060, 0x0060) system port A
+// AM_RANGE(0x0070, 0x0070) system port C
+// AM_RANGE(0x00cd, 0x00cd) MZ-1R32
+ AM_RANGE(0x0100, 0x0103) AM_MIRROR(0xc) AM_DEVREADWRITE8("upd7220", upd7220_device, read, write, 0x00ff)
+// AM_RANGE(0x0110, 0x011f) video address / data registers (priority)
+// AM_RANGE(0x0120, 0x012f) video registers
+// AM_RANGE(0x0130, 0x013f) video register
+// AM_RANGE(0x0140, 0x015f) palette pens
+// AM_RANGE(0x0200, 0x020f) z80sio
+// AM_RANGE(0x0210, 0x021f) z80ctc
+// AM_RANGE(0x0220, 0x022f) rp5c01
+// AM_RANGE(0x0230, 0x023f) ay-3-8912
+// AM_RANGE(0x0240, 0x0240) z80ctc vector ack
+// AM_RANGE(0x0250, 0x0250) z80sio vector ack
+// AM_RANGE(0x0270, 0x0270) system port B
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( mz6500 )
+INPUT_PORTS_END
+
+
+static MACHINE_RESET(mz6500)
+{
+}
+
+WRITE_LINE_MEMBER( mz6500_state::fdc_irq )
+{
+ //printf("%02x IRQ\n",state);
+}
+
+WRITE_LINE_MEMBER( mz6500_state::fdc_drq )
+{
+ //printf("%02x DRQ\n",state);
+}
+
+static const struct upd765_interface upd765_intf =
+{
+ DEVCB_DRIVER_LINE_MEMBER(mz6500_state, fdc_irq),
+ DEVCB_DRIVER_LINE_MEMBER(mz6500_state, fdc_drq),
+ NULL,
+ UPD765_RDY_PIN_CONNECTED,
+ {FLOPPY_0, FLOPPY_1, NULL, NULL}
+};
+
+static const floppy_interface mz6500_floppy_interface =
+{
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ FLOPPY_STANDARD_5_25_DSHD,
+ LEGACY_FLOPPY_OPTIONS_NAME(default),
+ NULL,
+ NULL
+};
+
+
+static UPD7220_INTERFACE( hgdc_intf )
+{
+ "screen",
+ hgdc_display_pixels,
+ NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+static ADDRESS_MAP_START( upd7220_map, AS_0, 8, mz6500_state )
+ AM_RANGE(0x00000, 0x3ffff) AM_RAM AM_SHARE("video_ram")
+ADDRESS_MAP_END
+
+
+static MACHINE_CONFIG_START( mz6500, mz6500_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", I8086, 4000000) //unk clock
+ MCFG_CPU_PROGRAM_MAP(mz6500_map)
+ MCFG_CPU_IO_MAP(mz6500_io)
+
+ MCFG_MACHINE_RESET(mz6500)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_UPDATE_DEVICE("upd7220", upd7220_device, screen_update)
+ MCFG_VIDEO_START(mz6500)
+ MCFG_SCREEN_SIZE(640, 480)
+ MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
+ MCFG_PALETTE_LENGTH(8)
+
+ /* Devices */
+ MCFG_UPD7220_ADD("upd7220", 4000000, hgdc_intf, upd7220_map)
+ MCFG_UPD765A_ADD("upd765", upd765_intf)
+ MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(mz6500_floppy_interface)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( mz6500 )
+ ROM_REGION( 0x4000, "ipl", ROMREGION_ERASEFF )
+ ROM_LOAD( "ipl.rom", 0x0000, 0x4000,CRC(6c978ac4) SHA1(7872d7e6d9cda2ed9f47ed4833a5caa4dfe0e55c))
+
+ ROM_REGION( 0x40000, "dictionary", ROMREGION_ERASEFF )
+ ROM_LOAD( "dict.rom", 0x0000, 0x40000, CRC(2df3cfd3) SHA1(d420ede09658c2626b0bb650a063d88b1783e554))
+
+ ROM_REGION( 0x40000, "kanji", ROMREGION_ERASEFF )
+ ROM_LOAD( "kanji.rom", 0x0000, 0x40000, CRC(b618e25d) SHA1(1da93337fecde6c0f8a5bd68f3f0b3222a38d63e))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 198?, mz6500, 0, 0, mz6500, mz6500, driver_device, 0, "Sharp", "MZ-6500", GAME_NOT_WORKING | GAME_NO_SOUND)