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Diffstat (limited to 'src/mame/drivers/clcd.c')
-rw-r--r--src/mame/drivers/clcd.c847
1 files changed, 847 insertions, 0 deletions
diff --git a/src/mame/drivers/clcd.c b/src/mame/drivers/clcd.c
new file mode 100644
index 00000000000..ed56c2e82ea
--- /dev/null
+++ b/src/mame/drivers/clcd.c
@@ -0,0 +1,847 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder,smf
+/***************************************************************************
+
+ Commodore LCD prototype
+
+ GTE G65SC102PI-2
+ GTE G65SC51P-1
+ Rockwell R65C22P2 x 2
+ AMI S3530X Bell 103/V.21 Single chip modem
+
+****************************************************************************/
+
+
+#include "bus/centronics/ctronics.h"
+#include "bus/rs232/rs232.h"
+#include "cpu/m6502/m65c02.h"
+#include "machine/6522via.h"
+#include "machine/bankdev.h"
+#include "machine/mos6551.h"
+#include "machine/msm58321.h"
+#include "machine/ram.h"
+#include "machine/nvram.h"
+#include "sound/speaker.h"
+#include "rendlay.h"
+
+class clcd_state : public driver_device
+{
+public:
+ clcd_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_acia(*this, "acia"),
+ m_via0(*this, "via0"),
+ m_rtc(*this, "rtc"),
+ m_centronics(*this, "centronics"),
+ m_ram(*this,"ram"),
+ m_nvram(*this, "nvram"),
+ m_bank1(*this, "bank1"),
+ m_bank2(*this, "bank2"),
+ m_bank3(*this, "bank3"),
+ m_bank4(*this, "bank4"),
+ m_lcd_char_rom(*this, "lcd_char_rom"),
+ m_lcd_scrollx(0),
+ m_lcd_scrolly(0),
+ m_lcd_mode(0),
+ m_lcd_size(0),
+ m_irq_via0(0),
+ m_irq_via1(0),
+ m_irq_acia(0),
+ m_mmu_mode(MMU_MODE_KERN),
+ m_mmu_saved_mode(MMU_MODE_KERN),
+ m_mmu_offset1(0),
+ m_mmu_offset2(0),
+ m_mmu_offset3(0),
+ m_mmu_offset4(0),
+ m_mmu_offset5(0),
+ m_key_clk(0),
+ m_key_poll(0),
+ m_key_column(0),
+ m_key_shift(0),
+ m_key_force_format(0),
+ m_col0(*this, "COL0"),
+ m_col1(*this, "COL1"),
+ m_col2(*this, "COL2"),
+ m_col3(*this, "COL3"),
+ m_col4(*this, "COL4"),
+ m_col5(*this, "COL5"),
+ m_col6(*this, "COL6"),
+ m_col7(*this, "COL7"),
+ m_special(*this, "SPECIAL")
+ {
+ }
+
+ virtual void driver_start()
+ {
+ m_mmu_mode = MMU_MODE_TEST;
+ update_mmu_mode(MMU_MODE_KERN);
+
+ update_irq();
+
+ save_item(NAME(m_lcd_scrollx));
+ save_item(NAME(m_lcd_scrolly));
+ save_item(NAME(m_lcd_mode));
+ save_item(NAME(m_lcd_size));
+ save_item(NAME(m_mmu_mode));
+ save_item(NAME(m_mmu_saved_mode));
+ save_item(NAME(m_mmu_offset1));
+ save_item(NAME(m_mmu_offset2));
+ save_item(NAME(m_mmu_offset3));
+ save_item(NAME(m_mmu_offset4));
+ save_item(NAME(m_mmu_offset5));
+ save_item(NAME(m_key_clk));
+ save_item(NAME(m_key_poll));
+ save_item(NAME(m_key_column));
+ save_item(NAME(m_key_shift));
+
+ m_rtc->cs1_w(1);
+ m_acia->write_cts(0);
+ m_nvram->set_base(ram()->pointer(), ram()->size());
+ }
+
+ DECLARE_PALETTE_INIT(clcd)
+ {
+ palette.set_pen_color(0, rgb_t(36,72,36));
+ palette.set_pen_color(1, rgb_t(2,4,2));
+ }
+
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+ {
+ if (m_lcd_mode & LCD_MODE_GRAPH)
+ {
+ for (int y = 0; y < 128; y++)
+ {
+ int offset = (m_lcd_scrolly * 128) + (y * 64);
+
+ for (int x = 0; x < 60; x++)
+ {
+ UINT8 bit = m_ram->pointer()[offset++];
+
+ bitmap.pix16(y, (x * 8) + 0) = (bit >> 7) & 1;
+ bitmap.pix16(y, (x * 8) + 1) = (bit >> 6) & 1;
+ bitmap.pix16(y, (x * 8) + 2) = (bit >> 5) & 1;
+ bitmap.pix16(y, (x * 8) + 3) = (bit >> 4) & 1;
+ bitmap.pix16(y, (x * 8) + 4) = (bit >> 3) & 1;
+ bitmap.pix16(y, (x * 8) + 5) = (bit >> 2) & 1;
+ bitmap.pix16(y, (x * 8) + 6) = (bit >> 1) & 1;
+ bitmap.pix16(y, (x * 8) + 7) = (bit >> 0) & 1;
+ }
+ }
+ }
+ else
+ {
+ UINT8 *font = m_lcd_char_rom->base();
+ if (m_lcd_mode & LCD_MODE_ALT)
+ {
+ font += 1024;
+ }
+
+ int chrw = (m_lcd_size & LCD_SIZE_CHRW) ? 8 : 6;
+
+ for (int y = 0; y < 16; y++)
+ {
+ int offset = (m_lcd_scrolly * 128) + (m_lcd_scrollx & 0x7f) + (y * 128);
+
+ for (int x = 0; x < 480; x++)
+ {
+ UINT8 ch = m_ram->pointer()[offset + (x / chrw)];
+ UINT8 bit = font[((ch & 0x7f) * chrw) + (x % chrw)];
+ if (ch & 0x80)
+ {
+ bit = ~bit;
+ }
+
+ bitmap.pix16((y * 8) + 0, x) = (bit >> 0) & 1;
+ bitmap.pix16((y * 8) + 1, x) = (bit >> 1) & 1;
+ bitmap.pix16((y * 8) + 2, x) = (bit >> 2) & 1;
+ bitmap.pix16((y * 8) + 3, x) = (bit >> 3) & 1;
+ bitmap.pix16((y * 8) + 4, x) = (bit >> 4) & 1;
+ bitmap.pix16((y * 8) + 5, x) = (bit >> 5) & 1;
+ bitmap.pix16((y * 8) + 6, x) = (bit >> 6) & 1;
+ bitmap.pix16((y * 8) + 7, x) = (bit >> 7) & 1;
+ }
+ }
+ }
+
+ return 0;
+ }
+
+ READ8_MEMBER(ram_r)
+ {
+ if (offset < m_ram->size())
+ {
+ return m_ram->pointer()[offset];
+ }
+
+ return 0xff;
+ }
+
+ WRITE8_MEMBER(ram_w)
+ {
+ if (offset < m_ram->size())
+ {
+ m_ram->pointer()[offset] = data;
+ }
+ }
+
+ enum
+ {
+ MMU_MODE_KERN,
+ MMU_MODE_APPL,
+ MMU_MODE_RAM,
+ MMU_MODE_TEST
+ };
+
+ enum
+ {
+ LCD_MODE_ALT = 1,
+ LCD_MODE_GRAPH = 2
+ };
+
+ enum
+ {
+ LCD_SIZE_CHRW = 4
+ };
+
+ void update_irq()
+ {
+ m_maincpu->irq_line(m_irq_via0 | m_irq_via1 | m_irq_acia);
+ }
+
+ WRITE_LINE_MEMBER(write_irq_via0)
+ {
+ m_irq_via0 = state;
+ update_irq();
+ }
+
+ WRITE_LINE_MEMBER(write_irq_via1)
+ {
+ m_irq_via1 = state;
+ update_irq();
+ }
+
+ WRITE_LINE_MEMBER(write_irq_acia)
+ {
+ m_irq_acia = state;
+ update_irq();
+ }
+
+ void update_mmu_mode(int new_mode)
+ {
+ if (m_mmu_mode != new_mode)
+ {
+ m_mmu_mode = new_mode;
+
+ switch (m_mmu_mode)
+ {
+ case MMU_MODE_KERN:
+ m_bank1->set_bank(0x04 + 0x00);
+ update_mmu_offset5();
+ m_bank3->set_bank(0x20 + 0xc0);
+ m_bank4->set_bank(0x30 + 0xc0);
+ break;
+
+ case MMU_MODE_APPL:
+ update_mmu_offset1();
+ update_mmu_offset2();
+ update_mmu_offset3();
+ update_mmu_offset4();
+ break;
+
+ case MMU_MODE_RAM:
+ m_bank1->set_bank(0x04);
+ m_bank2->set_bank(0x10);
+ m_bank3->set_bank(0x20);
+ m_bank4->set_bank(0x30);
+ break;
+
+ case MMU_MODE_TEST:
+ m_bank1->set_bank(0x04 + 0x200);
+ m_bank2->set_bank(0x10 + 0x200);
+ m_bank3->set_bank(0x20 + 0x200);
+ m_bank4->set_bank(0x30 + 0x200);
+ break;
+ }
+ }
+ }
+
+ void update_mmu_offset1()
+ {
+ if (m_mmu_mode == MMU_MODE_APPL)
+ {
+ m_bank1->set_bank(0x04 + m_mmu_offset1);
+ }
+ }
+
+ void update_mmu_offset2()
+ {
+ if (m_mmu_mode == MMU_MODE_APPL)
+ {
+ m_bank2->set_bank((0x10 + m_mmu_offset2) & 0xff);
+ }
+ }
+
+ void update_mmu_offset3()
+ {
+ if (m_mmu_mode == MMU_MODE_APPL)
+ {
+ m_bank3->set_bank((0x20 + m_mmu_offset3) & 0xff);
+ }
+ }
+
+ void update_mmu_offset4()
+ {
+ if (m_mmu_mode == MMU_MODE_APPL)
+ {
+ m_bank4->set_bank((0x30 + m_mmu_offset4) & 0xff);
+ }
+ }
+
+ void update_mmu_offset5()
+ {
+ if (m_mmu_mode == MMU_MODE_KERN)
+ {
+ m_bank2->set_bank((0x10 + m_mmu_offset5) & 0xff);
+ }
+ }
+
+ WRITE8_MEMBER(mmu_mode_kern_w)
+ {
+ update_mmu_mode(MMU_MODE_KERN);
+ }
+
+ WRITE8_MEMBER(mmu_mode_appl_w)
+ {
+ update_mmu_mode(MMU_MODE_APPL);
+ }
+
+ WRITE8_MEMBER(mmu_mode_ram_w)
+ {
+ update_mmu_mode(MMU_MODE_RAM);
+ }
+
+ WRITE8_MEMBER(mmu_mode_recall_w)
+ {
+ update_mmu_mode(m_mmu_saved_mode);
+ }
+
+ WRITE8_MEMBER(mmu_mode_save_w)
+ {
+ m_mmu_saved_mode = m_mmu_mode;
+ }
+
+ WRITE8_MEMBER(mmu_mode_test_w)
+ {
+ update_mmu_mode(MMU_MODE_TEST);
+ }
+
+ WRITE8_MEMBER(mmu_offset1_w)
+ {
+ if (m_mmu_offset1 != data)
+ {
+ m_mmu_offset1 = data;
+ update_mmu_offset1();
+ }
+ }
+
+ WRITE8_MEMBER(mmu_offset2_w)
+ {
+ if (m_mmu_offset2 != data)
+ {
+ m_mmu_offset2 = data;
+ update_mmu_offset2();
+ }
+ }
+
+ WRITE8_MEMBER(mmu_offset3_w)
+ {
+ if (m_mmu_offset3 != data)
+ {
+ m_mmu_offset3 = data;
+ update_mmu_offset3();
+ }
+ }
+
+ WRITE8_MEMBER(mmu_offset4_w)
+ {
+ if (m_mmu_offset4 != data)
+ {
+ m_mmu_offset4 = data;
+ update_mmu_offset4();
+ }
+ }
+
+ WRITE8_MEMBER(mmu_offset5_w)
+ {
+ if (m_mmu_offset5 != data)
+ {
+ m_mmu_offset5 = data;
+ update_mmu_offset5();
+ }
+ }
+
+ READ8_MEMBER(mmu_offset1_r)
+ {
+ return m_mmu_offset1;
+ }
+
+ READ8_MEMBER(mmu_offset2_r)
+ {
+ return m_mmu_offset2;
+ }
+
+ READ8_MEMBER(mmu_offset3_r)
+ {
+ return m_mmu_offset3;
+ }
+
+ READ8_MEMBER(mmu_offset4_r)
+ {
+ return m_mmu_offset4;
+ }
+
+ READ8_MEMBER(mmu_offset5_r)
+ {
+ return m_mmu_offset5;
+ }
+
+ WRITE8_MEMBER(lcd_scrollx_w)
+ {
+ m_lcd_scrollx = data;
+ }
+
+ WRITE8_MEMBER(lcd_scrolly_w)
+ {
+ m_lcd_scrolly = data;
+ }
+
+ WRITE8_MEMBER(lcd_mode_w)
+ {
+ m_lcd_mode = data;
+ }
+
+ WRITE8_MEMBER(lcd_size_w)
+ {
+ m_lcd_size = data;
+ }
+
+ WRITE8_MEMBER(via0_pa_w)
+ {
+ m_key_column = data;
+ }
+
+ int read_column(int column)
+ {
+ switch (column)
+ {
+ case 0:
+ return m_col0->read();
+
+ case 1:
+ return m_col1->read();
+
+ case 2:
+ return m_col2->read();
+
+ case 3:
+ return m_col3->read();
+
+ case 4:
+ return m_col4->read();
+
+ case 5:
+ return m_col5->read();
+
+ case 6:
+ return m_col6->read();
+
+ case 7:
+ return m_col7->read();
+ }
+
+ return 0;
+ }
+
+ WRITE8_MEMBER(via0_pb_w)
+ {
+ write_key_poll((data >> 0) & 1);
+ m_rtc->cs2_w((data >> 1) & 1);
+ }
+
+ WRITE_LINE_MEMBER(write_key_poll)
+ {
+ if (m_key_poll != state)
+ {
+ m_key_poll = state;
+
+ if (m_key_poll != 0)
+ {
+ m_key_shift = m_special->read();
+
+ for (int i = 0; i < 8; i++)
+ {
+ if ((m_key_column & (128 >> i)) == 0)
+ {
+ m_key_shift |= read_column(i) << 8;
+ }
+ }
+
+ if (m_key_force_format)
+ {
+ m_key_shift = 0x15; // Simulate holding CBM+SHIFT+STOP if you have no NVRAM
+
+ m_key_force_format--;
+ }
+ }
+ }
+ }
+
+ WRITE_LINE_MEMBER(via0_cb1_w)
+ {
+ int newm_key_clk = state & 1;
+ if (m_key_clk != newm_key_clk)
+ {
+ m_key_clk = newm_key_clk;
+
+ if (!m_key_clk)
+ {
+ m_via0->write_cb2((m_key_shift & 0x8000) != 0);
+ m_key_shift <<= 1;
+ }
+ }
+ }
+
+ WRITE8_MEMBER(via1_pa_w)
+ {
+ m_rtc->d0_w(BIT(data, 0));
+ m_centronics->write_data0(BIT(data, 0));
+
+ m_rtc->d1_w(BIT(data, 1));
+ m_centronics->write_data1(BIT(data, 1));
+
+ m_rtc->d2_w(BIT(data, 2));
+ m_centronics->write_data2(BIT(data, 2));
+
+ m_rtc->d3_w(BIT(data, 3));
+ m_centronics->write_data3(BIT(data, 3));
+
+ m_rtc->read_w(BIT(data, 4));
+ m_centronics->write_data4(BIT(data, 4));
+
+ m_rtc->write_w(BIT(data, 5));
+ m_centronics->write_data5(BIT(data, 5));
+
+ m_rtc->address_write_w(BIT(data, 6));
+ m_centronics->write_data6(BIT(data, 6));
+
+ m_centronics->write_data7(BIT(data, 7));
+ }
+
+ WRITE8_MEMBER(via1_pb_w)
+ {
+ //int centronics_unknown = !BIT(data,5);
+ }
+
+ ram_device *ram()
+ {
+ return m_ram;
+ }
+
+ void force_format()
+ {
+ m_key_force_format = 10;
+ }
+
+ void nvram_init(nvram_device &nvram, void *data, size_t size);
+
+private:
+ required_device<m65c02_device> m_maincpu;
+ required_device<mos6551_device> m_acia;
+ required_device<via6522_device> m_via0;
+ required_device<msm58321_device> m_rtc;
+ required_device<centronics_device> m_centronics;
+ required_device<ram_device> m_ram;
+ required_device<nvram_device> m_nvram;
+ required_device<address_map_bank_device> m_bank1;
+ required_device<address_map_bank_device> m_bank2;
+ required_device<address_map_bank_device> m_bank3;
+ required_device<address_map_bank_device> m_bank4;
+ required_memory_region m_lcd_char_rom;
+ int m_lcd_scrollx;
+ int m_lcd_scrolly;
+ int m_lcd_mode;
+ int m_lcd_size;
+ int m_irq_via0;
+ int m_irq_via1;
+ int m_irq_acia;
+ int m_mmu_mode;
+ int m_mmu_saved_mode;
+ UINT8 m_mmu_offset1;
+ UINT8 m_mmu_offset2;
+ UINT8 m_mmu_offset3;
+ UINT8 m_mmu_offset4;
+ UINT8 m_mmu_offset5;
+ int m_key_clk;
+ int m_key_poll;
+ int m_key_column;
+ UINT16 m_key_shift;
+ int m_key_force_format;
+ required_ioport m_col0;
+ required_ioport m_col1;
+ required_ioport m_col2;
+ required_ioport m_col3;
+ required_ioport m_col4;
+ required_ioport m_col5;
+ required_ioport m_col6;
+ required_ioport m_col7;
+ required_ioport m_special;
+};
+
+void clcd_state::nvram_init(nvram_device &nvram, void *data, size_t size)
+{
+ memset(data, 0x00, size);
+ force_format();
+}
+
+
+static ADDRESS_MAP_START( clcd_banked_mem, AS_PROGRAM, 8, clcd_state )
+ /* KERN/APPL/RAM */
+ AM_RANGE(0x00000, 0x1ffff) AM_MIRROR(0x40000) AM_READWRITE(ram_r, ram_w)
+ AM_RANGE(0x20000, 0x3ffff) AM_MIRROR(0x40000) AM_ROM AM_REGION("maincpu",0)
+
+ /* TEST */
+ AM_RANGE(0x81000, 0x83fff) AM_READ(mmu_offset1_r)
+ AM_RANGE(0x84000, 0x87fff) AM_READ(mmu_offset2_r)
+ AM_RANGE(0x88000, 0x8bfff) AM_READ(mmu_offset3_r)
+ AM_RANGE(0x8c000, 0x8dfff) AM_READ(mmu_offset4_r)
+ AM_RANGE(0x8e000, 0x8f7ff) AM_READ(mmu_offset5_r)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( clcd_mem, AS_PROGRAM, 8, clcd_state )
+ AM_RANGE(0x0000, 0x0fff) AM_READWRITE(ram_r, ram_w)
+ AM_RANGE(0x1000, 0x3fff) AM_DEVREADWRITE("bank1", address_map_bank_device, read8, write8)
+ AM_RANGE(0x4000, 0x7fff) AM_DEVREADWRITE("bank2", address_map_bank_device, read8, write8)
+ AM_RANGE(0x8000, 0xbfff) AM_DEVREADWRITE("bank3", address_map_bank_device, read8, write8)
+ AM_RANGE(0xc000, 0xf7ff) AM_DEVREADWRITE("bank4", address_map_bank_device, read8, write8)
+ AM_RANGE(0xf800, 0xf80f) AM_MIRROR(0x70) AM_DEVREADWRITE("via0", via6522_device, read, write)
+ AM_RANGE(0xf880, 0xf88f) AM_MIRROR(0x70) AM_DEVREADWRITE("via1", via6522_device, read, write)
+ AM_RANGE(0xf980, 0xf983) AM_MIRROR(0x7c) AM_DEVREADWRITE("acia", mos6551_device, read, write)
+ AM_RANGE(0xfa00, 0xffff) AM_ROM AM_REGION("maincpu", 0x1fa00)
+ AM_RANGE(0xfa00, 0xfa00) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_kern_w)
+ AM_RANGE(0xfa80, 0xfa80) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_appl_w)
+ AM_RANGE(0xfb00, 0xfb00) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_ram_w)
+ AM_RANGE(0xfb80, 0xfb80) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_recall_w)
+ AM_RANGE(0xfc00, 0xfc00) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_save_w)
+ AM_RANGE(0xfc80, 0xfc80) AM_MIRROR(0x7f) AM_WRITE(mmu_mode_test_w)
+ AM_RANGE(0xfd00, 0xfd00) AM_MIRROR(0x7f) AM_WRITE(mmu_offset1_w)
+ AM_RANGE(0xfd80, 0xfd80) AM_MIRROR(0x7f) AM_WRITE(mmu_offset2_w)
+ AM_RANGE(0xfe00, 0xfe00) AM_MIRROR(0x7f) AM_WRITE(mmu_offset3_w)
+ AM_RANGE(0xfe80, 0xfe80) AM_MIRROR(0x7f) AM_WRITE(mmu_offset4_w)
+ AM_RANGE(0xff00, 0xff00) AM_MIRROR(0x7f) AM_WRITE(mmu_offset5_w)
+ AM_RANGE(0xff80, 0xff80) AM_MIRROR(0x7c) AM_WRITE(lcd_scrollx_w)
+ AM_RANGE(0xff81, 0xff81) AM_MIRROR(0x7c) AM_WRITE(lcd_scrolly_w)
+ AM_RANGE(0xff82, 0xff82) AM_MIRROR(0x7c) AM_WRITE(lcd_mode_w)
+ AM_RANGE(0xff83, 0xff83) AM_MIRROR(0x7c) AM_WRITE(lcd_size_w)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( clcd )
+ PORT_START( "COL0" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6))
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("@") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('@')
+
+ PORT_START( "COL1" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("+") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+')
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
+
+ PORT_START( "COL2" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(": [") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(':') PORT_CHAR('[')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
+
+ PORT_START( "COL3" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
+
+ PORT_START( "COL4" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 ^") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7))
+
+ PORT_START( "COL5" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("; ]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(';') PORT_CHAR(']')
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
+
+ PORT_START( "COL6" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("HOME CLR") PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME))
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("*") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('*')
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
+
+ PORT_START( "COL7" )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("7 \'") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEL INST") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR('\b') PORT_CHAR(UCHAR_MAMEKEY(INSERT))
+
+ PORT_START( "SPECIAL" )
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("STOP") PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(END))
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CAPSLOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_MAMEKEY(LSHIFT))
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CONTROL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CBM") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT))
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // clears screen and goes into infinite loop
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // clears screen and goes into infinite loop
+INPUT_PORTS_END
+
+static MACHINE_CONFIG_START(clcd, clcd_state)
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M65C02, 2000000)
+ MCFG_CPU_PROGRAM_MAP(clcd_mem)
+
+ MCFG_DEVICE_ADD("via0", VIA6522, 2000000)
+ MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(clcd_state, via0_pa_w))
+ MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(clcd_state, via0_pb_w))
+ MCFG_VIA6522_CB1_HANDLER(WRITELINE(clcd_state, via0_cb1_w))
+ MCFG_VIA6522_IRQ_HANDLER(WRITELINE(clcd_state, write_irq_via0))
+
+ MCFG_DEVICE_ADD("via1", VIA6522, 2000000)
+ MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(clcd_state, via1_pa_w))
+ MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(clcd_state, via1_pb_w))
+ MCFG_VIA6522_IRQ_HANDLER(WRITELINE(clcd_state, write_irq_via1))
+ MCFG_VIA6522_CA2_HANDLER(DEVWRITELINE("centronics", centronics_device, write_strobe)) MCFG_DEVCB_XOR(1)
+ MCFG_VIA6522_CB2_HANDLER(DEVWRITELINE("speaker", speaker_sound_device, level_w))
+
+ MCFG_DEVICE_ADD("acia", MOS6551, 2000000)
+ MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
+ MCFG_MOS6551_IRQ_HANDLER(WRITELINE(clcd_state, write_irq_acia))
+ MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_txd))
+ MCFG_MOS6551_RTS_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_rts))
+ MCFG_MOS6551_DTR_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_dtr))
+
+ MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, NULL)
+ MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia", mos6551_device, write_rxd))
+ MCFG_RS232_DCD_HANDLER(DEVWRITELINE("acia", mos6551_device, write_dcd))
+ MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia", mos6551_device, write_dsr))
+ MCFG_RS232_CTS_HANDLER(DEVWRITELINE("via1", via6522_device, write_pb4))
+
+ MCFG_CENTRONICS_ADD("centronics", centronics_devices, NULL)
+ MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE("via1", via6522_device, write_pb6)) MCFG_DEVCB_XOR(1)
+
+ MCFG_DEVICE_ADD("bank1", ADDRESS_MAP_BANK, 0)
+ MCFG_DEVICE_PROGRAM_MAP(clcd_banked_mem)
+ MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
+ MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
+ MCFG_ADDRESS_MAP_BANK_STRIDE(0x400)
+
+ MCFG_DEVICE_ADD("bank2", ADDRESS_MAP_BANK, 0)
+ MCFG_DEVICE_PROGRAM_MAP(clcd_banked_mem)
+ MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
+ MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
+ MCFG_ADDRESS_MAP_BANK_STRIDE(0x400)
+
+ MCFG_DEVICE_ADD("bank3", ADDRESS_MAP_BANK, 0)
+ MCFG_DEVICE_PROGRAM_MAP(clcd_banked_mem)
+ MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
+ MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
+ MCFG_ADDRESS_MAP_BANK_STRIDE(0x400)
+
+ MCFG_DEVICE_ADD("bank4", ADDRESS_MAP_BANK, 0)
+ MCFG_DEVICE_PROGRAM_MAP(clcd_banked_mem)
+ MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
+ MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
+ MCFG_ADDRESS_MAP_BANK_STRIDE(0x400)
+
+ MCFG_DEVICE_ADD("rtc", MSM58321, XTAL_32_768kHz)
+ MCFG_MSM58321_D0_HANDLER(DEVWRITELINE("via1", via6522_device, write_pa0))
+ MCFG_MSM58321_D1_HANDLER(DEVWRITELINE("via1", via6522_device, write_pa1))
+ MCFG_MSM58321_D2_HANDLER(DEVWRITELINE("via1", via6522_device, write_pa2))
+ MCFG_MSM58321_D3_HANDLER(DEVWRITELINE("via1", via6522_device, write_pa3))
+ MCFG_MSM58321_BUSY_HANDLER(DEVWRITELINE("via1", via6522_device, write_pa7))
+ MCFG_MSM58321_YEAR0(1984)
+ MCFG_MSM58321_DEFAULT_24H(true)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", LCD)
+ MCFG_SCREEN_REFRESH_RATE(80)
+ MCFG_SCREEN_UPDATE_DRIVER(clcd_state, screen_update)
+ MCFG_SCREEN_SIZE(480, 128)
+ MCFG_SCREEN_VISIBLE_AREA(0, 480-1, 0, 128-1)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_DEFAULT_LAYOUT(layout_lcd)
+ MCFG_PALETTE_ADD("palette", 2)
+ MCFG_PALETTE_INIT_OWNER(clcd_state, clcd)
+
+ // sound hardware
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ MCFG_RAM_ADD("ram")
+ MCFG_RAM_DEFAULT_VALUE(0)
+ MCFG_RAM_EXTRA_OPTIONS("32k,64k")
+ MCFG_RAM_DEFAULT_SIZE("128k")
+
+ MCFG_NVRAM_ADD_CUSTOM_DRIVER("nvram", clcd_state, nvram_init)
+MACHINE_CONFIG_END
+
+
+ROM_START( clcd )
+ ROM_REGION( 0x20000, "maincpu", 0 )
+ ROM_LOAD( "ss-calc-13apr.u105", 0x00000, 0x8000, CRC(88a587a7) SHA1(b08f3169b7cd696bb6a9b6e6e87a077345377ac4))
+ ROM_LOAD( "sept-m-13apr.u104", 0x08000, 0x8000, CRC(41028c3c) SHA1(fcab6f0bbeef178eb8e5ecf82d9c348d8f318a8f))
+ ROM_LOAD( "sizapr.u103", 0x10000, 0x8000, CRC(0aa91d9f) SHA1(f0842f370607f95d0a0ec6afafb81bc063c32745))
+ ROM_LOAD( "kizapr.u102", 0x18000, 0x8000, CRC(59103d52) SHA1(e49c20b237a78b54c2cb26b133d5903bb60bd8ef))
+
+ ROM_REGION( 0x20000, "lcd_char_rom", 0 )
+ ROM_LOAD( "lcd_char_rom", 0x000000, 0x000800, BAD_DUMP CRC(7db9d225) SHA1(0a8835fa182efa55d027828b42aa554608795274) )
+ROM_END
+
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1985, clcd, 0, 0, clcd, clcd, driver_device, 0, "Commodore Business Machines", "LCD (Prototype)", 0 )