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Diffstat (limited to 'src/mame/drivers/rex6000.c')
-rw-r--r--src/mame/drivers/rex6000.c722
1 files changed, 722 insertions, 0 deletions
diff --git a/src/mame/drivers/rex6000.c b/src/mame/drivers/rex6000.c
new file mode 100644
index 00000000000..ee428f58fc1
--- /dev/null
+++ b/src/mame/drivers/rex6000.c
@@ -0,0 +1,722 @@
+// license:BSD-3-Clause
+// copyright-holders:Sandro Ronco
+/***************************************************************************
+
+ Xircom / Intel REX 6000
+
+ Driver by Sandro Ronco
+
+ Known REX 6000 banks:
+ 0x0000 - 0x00ff first flash chip
+ 0x0600 - 0x06ff second flash chip
+ 0x1000 - 0x1003 32KB RAM
+
+ Known DataSlim 2 banks:
+ 0x0000 - 0x00ff first flash chip
+ 0x0b00 - 0x0bff second flash chip
+ 0x1000 - 0x1003 32KB RAM
+
+ TODO:
+ - deleting all Memos causes an error
+ - alarm doesn't work
+ - alarm sound and keyclick
+ - NVRAM and warm start (without the pen calibration)
+ - serial I/O
+
+****************************************************************************/
+
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "machine/rp5c01.h"
+#include "machine/ram.h"
+#include "machine/intelfsh.h"
+#include "imagedev/snapquik.h"
+#include "sound/beep.h"
+#include "rendlay.h"
+
+#define MAKE_BANK(lo, hi) ((lo) | ((hi)<<8))
+
+//irq flag/mask bits
+#define IRQ_FLAG_KEYCHANGE 0x01
+#define IRQ_FLAG_ALARM 0x02
+#define IRQ_FLAG_SERIAL 0x04
+#define IRQ_FLAG_1HZ 0x10
+#define IRQ_FLAG_IRQ2 0x20
+#define IRQ_FLAG_IRQ1 0x40
+#define IRQ_FLAG_EVENT 0x80
+
+//memory bank types
+#define BANK_FLASH0_B0 0x00
+#define BANK_FLASH0_B1 0x01
+#define BANK_FLASH1_B0 0x02
+#define BANK_FLASH1_B1 0x03
+#define BANK_RAM 0x10
+#define BANK_UNKNOWN 0xff
+
+#define TC8521_TAG "rtc"
+
+class rex6000_state : public driver_device
+{
+public:
+ rex6000_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_ram(*this, RAM_TAG),
+ m_beep(*this, "beeper")
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<ram_device> m_ram;
+ required_device<beep_device> m_beep;
+ fujitsu_29dl16x_device *m_flash[4];
+
+ UINT8 m_bank[4];
+ UINT8 m_beep_io[5];
+ UINT8 m_lcd_base[2];
+ UINT8 m_touchscreen[0x10];
+ UINT8 m_lcd_enabled;
+ UINT8 m_lcd_cmd;
+ UINT8 *m_ram_base;
+
+ UINT8 m_irq_mask;
+ UINT8 m_irq_flag;
+ UINT8 m_port6;
+ UINT8 m_beep_mode;
+
+ struct
+ {
+ UINT8 type;
+ UINT16 page;
+ } m_banks[2];
+
+ virtual void machine_start();
+ virtual void machine_reset();
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
+ DECLARE_READ8_MEMBER( bankswitch_r );
+ DECLARE_WRITE8_MEMBER( bankswitch_w );
+ DECLARE_READ8_MEMBER( lcd_base_r );
+ DECLARE_WRITE8_MEMBER( lcd_base_w );
+ DECLARE_READ8_MEMBER( beep_r );
+ DECLARE_WRITE8_MEMBER( beep_w );
+ DECLARE_READ8_MEMBER( lcd_io_r );
+ DECLARE_WRITE8_MEMBER( lcd_io_w );
+ DECLARE_READ8_MEMBER( irq_r );
+ DECLARE_WRITE8_MEMBER( irq_w );
+ DECLARE_READ8_MEMBER( touchscreen_r );
+ DECLARE_WRITE8_MEMBER( touchscreen_w );
+ DECLARE_WRITE_LINE_MEMBER( alarm_irq );
+
+ DECLARE_READ8_MEMBER( flash_0x0000_r );
+ DECLARE_WRITE8_MEMBER( flash_0x0000_w );
+ DECLARE_READ8_MEMBER( flash_0x8000_r );
+ DECLARE_WRITE8_MEMBER( flash_0x8000_w );
+ DECLARE_READ8_MEMBER( flash_0xa000_r );
+ DECLARE_WRITE8_MEMBER( flash_0xa000_w );
+
+ UINT8 identify_bank_type(UINT32 bank);
+ DECLARE_PALETTE_INIT(rex6000);
+ DECLARE_INPUT_CHANGED_MEMBER(trigger_irq);
+ TIMER_DEVICE_CALLBACK_MEMBER(irq_timer1);
+ TIMER_DEVICE_CALLBACK_MEMBER(irq_timer2);
+ TIMER_DEVICE_CALLBACK_MEMBER(sec_timer);
+ DECLARE_QUICKLOAD_LOAD_MEMBER(rex6000);
+};
+
+
+UINT8 rex6000_state::identify_bank_type(UINT32 bank)
+{
+ if (bank < 0x080)
+ {
+ return BANK_FLASH0_B0;
+ }
+ else if (bank >= 0x080 && bank < 0x100)
+ {
+ return BANK_FLASH0_B1;
+ }
+ else if ((bank >= 0xb00 && bank < 0xb80) || (bank >= 0x600 && bank < 0x680))
+ {
+ return BANK_FLASH1_B0;
+ }
+ else if ((bank >= 0xb80 && bank < 0xc00) || (bank >= 0x680 && bank < 0x700))
+ {
+ return BANK_FLASH1_B1;
+ }
+ else if (bank >= 0x1000 && bank < 0x1004)
+ {
+ return BANK_RAM;
+ }
+ else
+ {
+ //logerror("%04x: unkonwn memory bank %x\n", m_maincpu->pc(), bank);
+ return BANK_UNKNOWN;
+ }
+}
+
+READ8_MEMBER( rex6000_state::bankswitch_r )
+{
+ return m_bank[offset];
+}
+
+WRITE8_MEMBER( rex6000_state::bankswitch_w )
+{
+ address_space& program = m_maincpu->space(AS_PROGRAM);
+
+ m_bank[offset&3] = data;
+
+ switch (offset)
+ {
+ case 0: //bank 1 low
+ case 1: //bank 1 high
+ {
+ //bank 1 start at 0x8000
+ m_banks[0].page = (MAKE_BANK(m_bank[0], m_bank[1]&0x0f) + 4);
+ m_banks[0].type = identify_bank_type(m_banks[0].page);
+
+ if (m_banks[0].type != BANK_UNKNOWN)
+ {
+ program.install_readwrite_handler(0x8000, 0x9fff, 0, 0, read8_delegate(FUNC(rex6000_state::flash_0x8000_r), this), write8_delegate(FUNC(rex6000_state::flash_0x8000_w), this));
+ }
+ else
+ {
+ program.unmap_readwrite(0x8000, 0x9fff);
+ }
+
+ break;
+ }
+ case 2: //bank 2 low
+ case 3: //bank 2 high
+ {
+ m_banks[1].page = MAKE_BANK(m_bank[2], m_bank[3]&0x1f);
+ m_banks[1].type = identify_bank_type(m_banks[1].page);
+
+ if (m_banks[1].type == BANK_RAM)
+ {
+ program.install_ram(0xa000, 0xbfff, m_ram_base + ((m_banks[1].page & 0x03)<<13));
+ }
+ else if (m_banks[1].type != BANK_UNKNOWN)
+ {
+ program.install_readwrite_handler(0xa000, 0xbfff, 0, 0, read8_delegate(FUNC(rex6000_state::flash_0xa000_r), this), write8_delegate(FUNC(rex6000_state::flash_0xa000_w), this));
+ }
+ else
+ {
+ program.unmap_readwrite(0xa000, 0xbfff);
+ }
+
+ break;
+ }
+ }
+}
+
+READ8_MEMBER( rex6000_state::beep_r )
+{
+ return m_beep_io[offset];
+}
+
+WRITE8_MEMBER( rex6000_state::beep_w )
+{
+ m_beep_io[offset] = data;
+
+ switch (offset)
+ {
+ case 0: //alarm mode control
+ /*
+ ---- ---x beep off
+ ---- --x- continuous beep
+ ---- -x-- continuous alarm 1
+ ---- x--- continuous alarm 2
+ ---x ---- continuous alarm 3
+ --x- ---- single very short beep (keyclick)
+ -x-- ---- single alarm
+ x--- ---- single short beep
+ */
+ //TODO: the beeper frequency and length in alarm mode need to be measured
+ break;
+ case 1: //tone mode control
+ if (m_beep_mode)
+ {
+ m_beep->set_state(BIT(data, 0));
+
+ //the beeper frequency is update only if the bit 1 is set
+ if (BIT(data, 1))
+ m_beep->set_frequency(16384 / (((m_beep_io[2] | (m_beep_io[3]<<8)) & 0x0fff) + 2));
+ }
+ break;
+ case 4: //select alarm/tone mode
+ if (m_beep_mode != BIT(data, 0))
+ m_beep->set_state(0); //turned off when mode changes
+
+ m_beep_mode = BIT(data, 0);
+ break;
+ }
+}
+
+READ8_MEMBER( rex6000_state::lcd_base_r )
+{
+ return m_lcd_base[offset];
+}
+
+WRITE8_MEMBER( rex6000_state::lcd_base_w )
+{
+ m_lcd_base[offset&1] = data;
+}
+
+READ8_MEMBER( rex6000_state::lcd_io_r )
+{
+ return (offset == 0) ? m_lcd_enabled : m_lcd_cmd;
+}
+
+WRITE8_MEMBER( rex6000_state::lcd_io_w )
+{
+ switch (offset)
+ {
+ case 0:
+ m_lcd_enabled = data;
+ break;
+ case 1:
+ m_lcd_cmd = data;
+ break;
+ }
+}
+
+READ8_MEMBER( rex6000_state::irq_r )
+{
+ switch (offset)
+ {
+ case 0: //irq flag
+ /*
+ ---- ---x input port
+ ---- --x- alarm
+ ---- -x-- serial
+ ---- x--- ??
+ ---x ---- 1Hz timer
+ --x- ---- 32Hz timer
+ -x-- ---- 4096Hz timer
+ x--- ---- special events
+ */
+ return m_irq_flag;
+
+ case 1:
+ return m_port6;
+
+ case 2: //irq mask
+ return m_irq_mask;
+
+ default:
+ return 0;
+ }
+}
+
+WRITE8_MEMBER( rex6000_state::irq_w )
+{
+ switch (offset)
+ {
+ case 0: //irq flag
+ m_irq_flag = data;
+ break;
+ case 1: //clear irq flag
+ m_port6 = data;
+ m_irq_flag &= (~data);
+ break;
+ case 2: //irq mask
+ m_irq_mask = data;
+ break;
+ }
+}
+
+READ8_MEMBER( rex6000_state::touchscreen_r )
+{
+ UINT16 x = ioport("PENX")->read();
+ UINT16 y = ioport("PENY")->read();
+ UINT16 battery = ioport("BATTERY")->read();
+
+ switch (offset)
+ {
+ case 0x08:
+ return ((ioport("INPUT")->read() & 0x40) ? 0x20 : 0x00) | 0X10;
+ case 0x09:
+ if (m_touchscreen[4] & 0x80)
+ return (battery>>0) & 0xff;
+ else
+ return (y>>0) & 0xff;
+ case 0x0a:
+ if (m_touchscreen[4] & 0x80)
+ return (battery>>8) & 0xff;
+ else
+ return (y>>8) & 0xff;
+ case 0x0b:
+ return (x>>0) & 0xff;
+ case 0x0c:
+ return (x>>8) & 0xff;
+ }
+
+ return m_touchscreen[offset&0x0f];
+}
+
+WRITE8_MEMBER( rex6000_state::touchscreen_w )
+{
+ m_touchscreen[offset&0x0f] = data;
+}
+
+READ8_MEMBER( rex6000_state::flash_0x0000_r )
+{
+ return m_flash[0]->read(offset);
+}
+
+WRITE8_MEMBER( rex6000_state::flash_0x0000_w )
+{
+ m_flash[0]->write(offset, data);
+}
+
+READ8_MEMBER( rex6000_state::flash_0x8000_r )
+{
+ return m_flash[m_banks[0].type]->read(((m_banks[0].page & 0x7f)<<13) | offset);
+}
+
+WRITE8_MEMBER( rex6000_state::flash_0x8000_w )
+{
+ m_flash[m_banks[0].type]->write(((m_banks[0].page & 0x7f)<<13) | offset, data);
+}
+
+READ8_MEMBER( rex6000_state::flash_0xa000_r )
+{
+ return m_flash[m_banks[1].type]->read(((m_banks[1].page & 0x7f)<<13) | offset);
+}
+
+WRITE8_MEMBER( rex6000_state::flash_0xa000_w )
+{
+ m_flash[m_banks[1].type]->write(((m_banks[1].page & 0x7f)<<13) | offset, data);
+}
+
+
+static ADDRESS_MAP_START(rex6000_mem, AS_PROGRAM, 8, rex6000_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE( 0x0000, 0x7fff ) AM_READWRITE(flash_0x0000_r, flash_0x0000_w)
+ AM_RANGE( 0x8000, 0x9fff ) AM_READWRITE(flash_0x8000_r, flash_0x8000_w)
+ AM_RANGE( 0xa000, 0xbfff ) AM_READWRITE(flash_0xa000_r, flash_0xa000_w)
+ AM_RANGE( 0xc000, 0xffff ) AM_RAMBANK("ram") //system RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( rex6000_io, AS_IO, 8, rex6000_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE( 0x01, 0x04 ) AM_READWRITE(bankswitch_r, bankswitch_w)
+ AM_RANGE( 0x05, 0x07 ) AM_READWRITE(irq_r, irq_w)
+ AM_RANGE( 0x10, 0x10 ) AM_READ_PORT("INPUT")
+ AM_RANGE( 0x15, 0x19 ) AM_READWRITE(beep_r, beep_w)
+ AM_RANGE( 0x22, 0x23 ) AM_READWRITE(lcd_base_r, lcd_base_w)
+ AM_RANGE( 0x30, 0x3f ) AM_DEVREADWRITE(TC8521_TAG, rp5c01_device, read, write)
+ AM_RANGE( 0x40, 0x47 ) AM_MIRROR(0x08) AM_NOP //SIO
+ AM_RANGE( 0x50, 0x51 ) AM_READWRITE(lcd_io_r, lcd_io_w)
+ AM_RANGE( 0x60, 0x6f ) AM_READWRITE(touchscreen_r, touchscreen_w)
+ //AM_RANGE( 0x00, 0xff ) AM_RAM
+ADDRESS_MAP_END
+
+INPUT_CHANGED_MEMBER(rex6000_state::trigger_irq)
+{
+ if (!(m_irq_mask & IRQ_FLAG_KEYCHANGE))
+ {
+ m_irq_flag |= IRQ_FLAG_KEYCHANGE;
+
+ m_maincpu->set_input_line(0, HOLD_LINE);
+ }
+}
+
+/* Input ports */
+INPUT_PORTS_START( rex6000 )
+ PORT_START("BATTERY")
+ PORT_CONFNAME( 0x03ff, 0x03ff, "Battery Status" )
+ PORT_CONFSETTING( 0x03ff, "Good" )
+ PORT_CONFSETTING( 0x0000, "Poor" )
+
+ PORT_START("INPUT")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Home") PORT_CODE(KEYCODE_HOME) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Back") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Select") PORT_CODE(KEYCODE_SPACE) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Up") PORT_CODE(KEYCODE_PGUP) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Down") PORT_CODE(KEYCODE_PGDN) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_NAME("Pen") PORT_CODE(KEYCODE_ENTER) PORT_CODE(MOUSECODE_BUTTON1) PORT_CHANGED_MEMBER(DEVICE_SELF, rex6000_state, trigger_irq, 0)
+
+ PORT_START("PENX")
+ PORT_BIT(0x3ff, 0x00, IPT_LIGHTGUN_X) PORT_NAME("Pen X") PORT_CROSSHAIR(X, 1, 0, 0) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_INVERT
+
+ PORT_START("PENY")
+ PORT_BIT(0x3ff, 0x00, IPT_LIGHTGUN_Y) PORT_NAME("Pen Y") PORT_CROSSHAIR(Y, 1, 0, 0) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_INVERT
+INPUT_PORTS_END
+
+void rex6000_state::machine_start()
+{
+ m_flash[0] = machine().device<fujitsu_29dl16x_device>("flash0a");
+ m_flash[1] = machine().device<fujitsu_29dl16x_device>("flash0b");
+ m_flash[2] = machine().device<fujitsu_29dl16x_device>("flash1a");
+ m_flash[3] = machine().device<fujitsu_29dl16x_device>("flash1b");
+
+ m_ram_base = m_ram->pointer();
+ membank("ram")->set_base(m_ram_base + 0x4000);
+}
+void rex6000_state::machine_reset()
+{
+ address_space& program = m_maincpu->space(AS_PROGRAM);
+
+ program.install_readwrite_handler(0x8000, 0x9fff, 0, 0, read8_delegate(FUNC(rex6000_state::flash_0x8000_r), this), write8_delegate(FUNC(rex6000_state::flash_0x8000_w), this));
+ program.install_readwrite_handler(0xa000, 0xbfff, 0, 0, read8_delegate(FUNC(rex6000_state::flash_0xa000_r), this), write8_delegate(FUNC(rex6000_state::flash_0xa000_w), this));
+
+ m_banks[0].type = 0x04;
+ m_banks[0].type = 0;
+ m_banks[1].type = 0x00;
+ m_banks[1].type = 0;
+
+ memset(m_ram_base, 0, m_ram->size());
+ memset(m_bank, 0, sizeof(m_bank));
+ memset(m_beep_io, 0, sizeof(m_beep_io));
+ memset(m_lcd_base, 0, sizeof(m_lcd_base));
+ memset(m_touchscreen, 0, sizeof(m_touchscreen));
+ m_lcd_enabled = 0;
+ m_lcd_cmd = 0;
+ m_irq_mask = 0;
+ m_irq_flag = 0;
+ m_port6 = 0;
+ m_beep_mode = 0;
+}
+
+UINT32 rex6000_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ UINT16 lcd_bank = MAKE_BANK(m_lcd_base[0], m_lcd_base[1]&0x1f);
+ UINT8 mem_type = identify_bank_type(lcd_bank);
+
+ if (m_lcd_enabled && mem_type != BANK_UNKNOWN)
+ {
+ for (int y=0; y<120; y++)
+ for (int x=0; x<30; x++)
+ {
+ UINT8 data = 0;
+
+ if (mem_type == BANK_RAM)
+ {
+ data = (m_ram_base + ((lcd_bank & 0x03)<<13))[y*30 + x];
+ }
+ else
+ {
+ data = m_flash[mem_type]->space(0).read_byte(((lcd_bank & 0x7f)<<13) | (y*30 + x));
+ }
+
+
+ for (int b=0; b<8; b++)
+ {
+ bitmap.pix16(y, (x * 8) + b) = BIT(data, 7);
+ data <<= 1;
+ }
+ }
+ }
+ else
+ {
+ bitmap.fill(0, cliprect);
+ }
+
+ return 0;
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(rex6000_state::irq_timer1)
+{
+ if (!(m_irq_mask & IRQ_FLAG_IRQ2))
+ {
+ m_irq_flag |= IRQ_FLAG_IRQ2;
+
+ m_maincpu->set_input_line(0, HOLD_LINE);
+ }
+
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(rex6000_state::irq_timer2)
+{
+ if (!(m_irq_mask & IRQ_FLAG_IRQ1))
+ {
+ m_irq_flag |= IRQ_FLAG_IRQ1;
+
+ m_maincpu->set_input_line(0, HOLD_LINE);
+ }
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(rex6000_state::sec_timer)
+{
+ if (!(m_irq_mask & IRQ_FLAG_1HZ))
+ {
+ m_irq_flag |= IRQ_FLAG_1HZ;
+
+ m_maincpu->set_input_line(0, HOLD_LINE);
+ }
+}
+
+WRITE_LINE_MEMBER( rex6000_state::alarm_irq )
+{
+ if (!(m_irq_mask & IRQ_FLAG_ALARM) && state)
+ {
+ m_irq_flag |= IRQ_FLAG_ALARM;
+ m_maincpu->set_input_line(0, HOLD_LINE);
+ }
+}
+
+
+PALETTE_INIT_MEMBER(rex6000_state, rex6000)
+{
+ palette.set_pen_color(0, rgb_t(138, 146, 148));
+ palette.set_pen_color(1, rgb_t(92, 83, 88));
+}
+
+QUICKLOAD_LOAD_MEMBER( rex6000_state,rex6000)
+{
+ static const char magic[] = "ApplicationName:Addin";
+ address_space& flash = machine().device("flash0b")->memory().space(0);
+ UINT32 img_start = 0;
+
+ dynamic_buffer data(image.length());
+ image.fread(&data[0], image.length());
+
+ if(strncmp((const char*)&data[0], magic, 21))
+ return IMAGE_INIT_FAIL;
+
+ img_start = strlen((const char*)&data[0]) + 5;
+ img_start += 0xa0; //skip the icon (40x32 pixel)
+
+ for (UINT32 i=0; i<image.length() - img_start ;i++)
+ flash.write_byte(i, data[img_start + i]);
+
+ return IMAGE_INIT_PASS;
+}
+
+
+/* F4 Character Displayer */
+static const gfx_layout rex6000_bold_charlayout =
+{
+ 16, 11, /* 16 x 11 characters */
+ 256, /* 256 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },
+ /* y offsets */
+ { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, 8*16, 9*16, 10*16 },
+ 8*24 /* every char takes 24 bytes, first 2 bytes are used for the char size */
+};
+
+static const gfx_layout rex6000_tiny_charlayout =
+{
+ 16, 9, /* 16 x 9 characters */
+ 256, /* 256 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },
+ /* y offsets */
+ { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, 8*16 },
+ 8*20 /* every char takes 20 bytes, first 2 bytes ared use for the char size */
+};
+
+static const gfx_layout rex6000_graph_charlayout =
+{
+ 16, 13, /* 16 x 13 characters */
+ 48, /* 48 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },
+ /* y offsets */
+ { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, 8*16, 9*16, 10*16 , 11*16 , 12*16 },
+ 8*28 /* every char takes 28 bytes, first 2 bytes are used for the char size */
+};
+
+static GFXDECODE_START( rex6000 )
+ GFXDECODE_ENTRY( "flash0a", 0x0f0000, rex6000_bold_charlayout, 0, 0 ) //normal
+ GFXDECODE_ENTRY( "flash0a", 0x0f2000, rex6000_bold_charlayout, 0, 0 ) //bold
+ GFXDECODE_ENTRY( "flash0a", 0x0f4000, rex6000_tiny_charlayout, 0, 0 ) //tiny
+ GFXDECODE_ENTRY( "flash0a", 0x0f6000, rex6000_graph_charlayout, 0, 0 ) //graphic
+GFXDECODE_END
+
+
+static MACHINE_CONFIG_START( rex6000, rex6000_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) //Toshiba microprocessor Z80 compatible at 4.3MHz
+ MCFG_CPU_PROGRAM_MAP(rex6000_mem)
+ MCFG_CPU_IO_MAP(rex6000_io)
+
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("sec_timer", rex6000_state, sec_timer, attotime::from_hz(1))
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("irq_timer1", rex6000_state, irq_timer1, attotime::from_hz(32))
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("irq_timer2", rex6000_state, irq_timer2, attotime::from_hz(4096))
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", LCD)
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_UPDATE_DRIVER(rex6000_state, screen_update)
+ MCFG_SCREEN_SIZE(240, 120)
+ MCFG_SCREEN_VISIBLE_AREA(0, 240-1, 0, 120-1)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_DEFAULT_LAYOUT(layout_lcd)
+ MCFG_PALETTE_ADD("palette", 2)
+ MCFG_PALETTE_INIT_OWNER(rex6000_state, rex6000)
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", rex6000)
+
+ /* quickload */
+ MCFG_QUICKLOAD_ADD("quickload", rex6000_state, rex6000, "rex,ds2", 0)
+
+ MCFG_DEVICE_ADD(TC8521_TAG, RP5C01, XTAL_32_768kHz)
+ MCFG_RP5C01_OUT_ALARM_CB(WRITELINE(rex6000_state, alarm_irq))
+
+ /*
+ Fujitsu 29DL16X have feature which is capability of reading data from one
+ bank of memory while a program or erase operation is in progress in the
+ other bank of memory (simultaneous operation). This is not supported yet
+ by the flash emulation and I have splitted every bank into a separate
+ device for have a similar behavior.
+ */
+ MCFG_FUJITSU_29DL16X_ADD("flash0a") //bank 0 of first flash
+ MCFG_FUJITSU_29DL16X_ADD("flash0b") //bank 1 of first flash
+ MCFG_FUJITSU_29DL16X_ADD("flash1a") //bank 0 of second flash
+ MCFG_FUJITSU_29DL16X_ADD("flash1b") //bank 1 of second flash
+
+ /* internal ram */
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("32K")
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO( "mono" )
+ MCFG_SOUND_ADD( "beeper", BEEP, 0 )
+ MCFG_SOUND_ROUTE( ALL_OUTPUTS, "mono", 1.00 )
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( rex6000 )
+ ROM_REGION( 0x200000, "flash0a", ROMREGION_ERASE )
+ ROM_LOAD( "rex6000_0.dat", 0x0000, 0x100000, BAD_DUMP CRC(e7a7324f) SHA1(01adcd469c93984438cbd4bf6e5a46e74da500d0))
+
+ ROM_REGION( 0x200000, "flash0b", ROMREGION_ERASE )
+ ROM_LOAD( "rex6000_1.dat", 0x0000, 0x100000, BAD_DUMP CRC(cc4b51db) SHA1(73b655e21ece30e8dc60f2f09719bc446492cc0f))
+
+ ROM_REGION( 0x200000, "flash1a", ROMREGION_ERASE )
+ ROM_LOAD( "rex6000_2.dat", 0x0000, 0x100000, NO_DUMP)
+
+ ROM_REGION( 0x200000, "flash1b", ROMREGION_ERASE )
+ ROM_LOAD( "rex6000_3.dat", 0x0000, 0x100000, NO_DUMP)
+ROM_END
+
+ROM_START( ds2 )
+ ROM_REGION( 0x200000, "flash0a", ROMREGION_ERASE )
+ ROM_LOAD( "ds2_0.dat", 0x0000, 0x100000, BAD_DUMP CRC(3197bed3) SHA1(9f826fd6d23ced797daae666d88ced14d24b64c3))
+
+ ROM_REGION( 0x200000, "flash0b", ROMREGION_ERASE )
+ ROM_LOAD( "ds2_1.dat", 0x0000, 0x100000, BAD_DUMP CRC(a909b755) SHA1(4db8a44539b9f94d418c33bbd794afb9bacbbadd))
+
+ ROM_REGION( 0x200000, "flash1a", ROMREGION_ERASE )
+ ROM_LOAD( "ds2_2.dat", 0x0000, 0x100000, BAD_DUMP CRC(a738ea1c) SHA1(3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3))
+
+ ROM_REGION( 0x200000, "flash1b", ROMREGION_ERASE )
+ ROM_LOAD( "ds2_3.dat", 0x0000, 0x100000, BAD_DUMP CRC(64f7c189) SHA1(a47d3413ddb879083c3aec03a42fe357d3a3c10a))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 2000, rex6000, 0, 0, rex6000, rex6000, driver_device, 0, "Xircom / Intel", "REX 6000", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
+COMP( 2000, ds2, rex6000, 0, rex6000, rex6000, driver_device, 0, "Citizen", "DataSlim 2", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)