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-rw-r--r--src/mess/drivers/bcs3.c508
1 files changed, 508 insertions, 0 deletions
diff --git a/src/mess/drivers/bcs3.c b/src/mess/drivers/bcs3.c
new file mode 100644
index 00000000000..26801668a69
--- /dev/null
+++ b/src/mess/drivers/bcs3.c
@@ -0,0 +1,508 @@
+/***************************************************************************
+
+ BCS 3
+
+ 12/05/2009 Skeleton driver.
+
+ Everything in this driver has been worked out by reading the
+ ROM and using the debugger, as no information is available.
+
+ Therefore, it is likely to be full of mistakes and omissions.
+
+ Note: The $ key makes a square symbol.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+
+#define MACHINE_RESET_MEMBER(name) void name::machine_reset()
+#define VIDEO_START_MEMBER(name) void name::video_start()
+
+class bcs3_state : public driver_device
+{
+public:
+ bcs3_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_p_videoram(*this, "videoram"){ }
+
+ required_device<cpu_device> m_maincpu;
+ const UINT8 *m_p_chargen;
+ required_shared_ptr<const UINT8> m_p_videoram;
+ DECLARE_READ8_MEMBER(bcs3_keyboard_r);
+ virtual void machine_reset();
+ virtual void video_start();
+};
+
+READ8_MEMBER( bcs3_state::bcs3_keyboard_r )
+{
+ UINT8 data = 0;
+
+ if (~offset & 0x01)
+ data |= ioport("LINE0")->read();
+ if (~offset & 0x02)
+ data |= ioport("LINE1")->read();
+ if (~offset & 0x04)
+ data |= ioport("LINE2")->read();
+ if (~offset & 0x08)
+ data |= ioport("LINE3")->read();
+ if (~offset & 0x10)
+ data |= ioport("LINE4")->read();
+ if (~offset & 0x20)
+ data |= ioport("LINE5")->read();
+ if (~offset & 0x40)
+ data |= ioport("LINE6")->read();
+ if (~offset & 0x80)
+ data |= ioport("LINE7")->read();
+ if (~offset & 0x100)
+ data |= ioport("LINE8")->read();
+
+ return data;
+}
+
+static ADDRESS_MAP_START(bcs3_mem, AS_PROGRAM, 8, bcs3_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE( 0x0000, 0x0fff ) AM_ROM
+ AM_RANGE( 0x1000, 0x11ff ) AM_READ_PORT("LINE9")
+ AM_RANGE( 0x1200, 0x13ff ) AM_READ(bcs3_keyboard_r)
+ AM_RANGE( 0x3c00, 0xffff ) AM_RAM
+ AM_RANGE( 0x3c50, 0x3d9f ) AM_RAM AM_SHARE("videoram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(bcs3a_mem, AS_PROGRAM, 8, bcs3_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE( 0x0000, 0x0fff ) AM_ROM
+ AM_RANGE( 0x1000, 0x11ff ) AM_READ_PORT("LINE9")
+ AM_RANGE( 0x1200, 0x13ff ) AM_READ(bcs3_keyboard_r)
+ AM_RANGE( 0x3c00, 0xefff ) AM_RAM
+ AM_RANGE( 0x3c00, 0x5a7f ) AM_RAM AM_SHARE("videoram")
+ AM_RANGE( 0xf000, 0xf3ff ) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(bcs3b_mem, AS_PROGRAM, 8, bcs3_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE( 0x0000, 0x0fff ) AM_ROM
+ AM_RANGE( 0x1000, 0x11ff ) AM_READ_PORT("LINE9")
+ AM_RANGE( 0x1200, 0x13ff ) AM_READ(bcs3_keyboard_r)
+ AM_RANGE( 0x3c00, 0xefff ) AM_RAM
+ AM_RANGE( 0x3c00, 0x657f ) AM_RAM AM_SHARE("videoram")
+ AM_RANGE( 0xf000, 0xf3ff ) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(bcs3c_mem, AS_PROGRAM, 8, bcs3_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE( 0x0000, 0x0fff ) AM_ROM
+ AM_RANGE( 0x1000, 0x11ff ) AM_READ_PORT("LINE9")
+ AM_RANGE( 0x1200, 0x13ff ) AM_READ(bcs3_keyboard_r)
+ AM_RANGE( 0x3c00, 0xffff ) AM_RAM
+ AM_RANGE( 0x3c00, 0x5ab3 ) AM_RAM AM_SHARE("videoram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( bcs3_io, AS_IO, 8, bcs3_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+// AM_RANGE( 0xf8, 0xfb ) AM_DEVREADWRITE(Z80CTC,"z80ctc",z80ctc_r,z80ctc_w)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( bcs3 )
+ PORT_START("LINE0")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('H')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K :") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR(':')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A &") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('&')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('O')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE1")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L ;") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR(';')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B '") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR(39)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE2")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M <") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('<')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C (") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('(')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR(34)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE3")
+ PORT_BIT(0x01, 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("N =") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('=')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D )") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR(')')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE4")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O >") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('>')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E *") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('*')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE5")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F +") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('+')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE6")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(32)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G ,") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('.')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE7")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H -") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7 '") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE8")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
+ PORT_BIT(0x04, 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("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+
+ PORT_START("LINE9")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
+ PORT_BIT(0x04, 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("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) // cassette read bit
+INPUT_PORTS_END
+
+
+MACHINE_RESET_MEMBER(bcs3_state)
+{
+}
+
+VIDEO_START_MEMBER( bcs3_state )
+{
+ m_p_chargen = memregion("chargen")->base();
+}
+
+static SCREEN_UPDATE_IND16( bcs3 )
+{
+ bcs3_state *state = screen.machine().driver_data<bcs3_state>();
+ UINT8 y,ra,chr,gfx,rat;
+ UINT16 sy=0,ma=0,x;
+
+ for (y = 0; y < 12; y++)
+ {
+ for (ra = 0; ra < 10; ra++)
+ {
+ UINT16 *p = &bitmap.pix16(sy++);
+ rat = (ra + 1) & 7;
+
+ for (x = ma; x < ma + 28; x++)
+ {
+ if (ra < 8)
+ {
+ chr = state->m_p_videoram[x] & 0x7f;
+
+ /* get pattern of pixels for that character scanline */
+ gfx = state->m_p_chargen[(chr<<3) | rat ] ^ 0xff;
+ }
+ else
+ gfx = 0xff;
+
+ /* Display a scanline of a character (8 pixels) */
+ *p++ = BIT(gfx, 7);
+ *p++ = BIT(gfx, 6);
+ *p++ = BIT(gfx, 5);
+ *p++ = BIT(gfx, 4);
+ *p++ = BIT(gfx, 3);
+ *p++ = BIT(gfx, 2);
+ *p++ = BIT(gfx, 1);
+ *p++ = BIT(gfx, 0);
+ }
+ }
+ ma+=28;
+ }
+ return 0;
+}
+
+/* This has 100 lines of screen data. I'm assuming that it only shows a portion of this,
+ with the cursor always in sight. */
+static SCREEN_UPDATE_IND16( bcs3a )
+{
+ bcs3_state *state = screen.machine().driver_data<bcs3_state>();
+ UINT8 y,ra,chr,gfx,rat;
+ UINT16 sy=0,ma=128,x;
+ UINT16 cursor = (state->m_p_videoram[0x7a] | (state->m_p_videoram[0x7b] << 8)) - 0x3c80; // get cursor relative position
+ rat = cursor / 30;
+ if (rat > 11) ma = (rat-11) * 30 + 128;
+
+ for (y = 0; y < 12; y++)
+ {
+ for (ra = 0; ra < 10; ra++)
+ {
+ UINT16 *p = &bitmap.pix16(sy++);
+ rat = (ra + 1) & 7;
+
+ for (x = ma; x < ma + 29; x++)
+ {
+ if (ra < 8)
+ {
+ chr = state->m_p_videoram[x] & 0x7f;
+
+ /* get pattern of pixels for that character scanline */
+ gfx = state->m_p_chargen[(chr<<3) | rat ] ^ 0xff;
+ }
+ else
+ gfx = 0xff;
+
+ /* Display a scanline of a character (8 pixels) */
+ *p++ = BIT(gfx, 7);
+ *p++ = BIT(gfx, 6);
+ *p++ = BIT(gfx, 5);
+ *p++ = BIT(gfx, 4);
+ *p++ = BIT(gfx, 3);
+ *p++ = BIT(gfx, 2);
+ *p++ = BIT(gfx, 1);
+ *p++ = BIT(gfx, 0);
+ }
+ }
+ ma+=30;
+ }
+ return 0;
+}
+
+static SCREEN_UPDATE_IND16( bcs3b )
+{
+ bcs3_state *state = screen.machine().driver_data<bcs3_state>();
+ UINT8 y,ra,chr,gfx,rat;
+ UINT16 sy=0,ma=128,x;
+ UINT16 cursor = (state->m_p_videoram[0x7a] | (state->m_p_videoram[0x7b] << 8)) - 0x3c80; // get cursor relative position
+ rat = cursor / 41;
+ if (rat > 23) ma = (rat-23) * 41 + 128;
+
+ for (y = 0; y < 24; y++)
+ {
+ for (ra = 0; ra < 10; ra++)
+ {
+ UINT16 *p = &bitmap.pix16(sy++);
+ rat = (ra + 1) & 7;
+
+ for (x = ma; x < ma + 40; x++)
+ {
+ if (ra < 8)
+ {
+ chr = state->m_p_videoram[x] & 0x7f;
+
+ /* get pattern of pixels for that character scanline */
+ gfx = state->m_p_chargen[(chr<<3) | rat ] ^ 0xff;
+ }
+ else
+ gfx = 0xff;
+
+ /* Display a scanline of a character (8 pixels) */
+ *p++ = BIT(gfx, 7);
+ *p++ = BIT(gfx, 6);
+ *p++ = BIT(gfx, 5);
+ *p++ = BIT(gfx, 4);
+ *p++ = BIT(gfx, 3);
+ *p++ = BIT(gfx, 2);
+ *p++ = BIT(gfx, 1);
+ *p++ = BIT(gfx, 0);
+ }
+ }
+ ma+=41;
+ }
+ return 0;
+}
+
+static SCREEN_UPDATE_IND16( bcs3c )
+{
+ bcs3_state *state = screen.machine().driver_data<bcs3_state>();
+ UINT8 y,ra,chr,gfx,rat;
+ UINT16 sy=0,ma=0xb4,x;
+ UINT16 cursor = (state->m_p_videoram[0x08] | (state->m_p_videoram[0x09] << 8)) - 0x3c80; // get cursor relative position
+ rat = cursor / 30;
+ if (rat > 11) ma = (rat-11) * 30 + 0xb4;
+
+ for (y = 0; y < 12; y++)
+ {
+ for (ra = 0; ra < 10; ra++)
+ {
+ UINT16 *p = &bitmap.pix16(sy++);
+ rat = (ra + 1) & 7;
+
+ for (x = ma; x < ma + 29; x++)
+ {
+ if (ra < 8)
+ {
+ chr = state->m_p_videoram[x] & 0x7f;
+
+ /* get pattern of pixels for that character scanline */
+ gfx = state->m_p_chargen[(chr<<3) | rat ] ^ 0xff;
+ }
+ else
+ gfx = 0xff;
+
+ /* Display a scanline of a character (8 pixels) */
+ *p++ = BIT(gfx, 7);
+ *p++ = BIT(gfx, 6);
+ *p++ = BIT(gfx, 5);
+ *p++ = BIT(gfx, 4);
+ *p++ = BIT(gfx, 3);
+ *p++ = BIT(gfx, 2);
+ *p++ = BIT(gfx, 1);
+ *p++ = BIT(gfx, 0);
+ }
+ }
+ ma+=30;
+ }
+ return 0;
+}
+
+/* F4 Character Displayer */
+static const gfx_layout bcs3_charlayout =
+{
+ 8, 8, /* 8 x 8 characters */
+ 128, /* 128 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ /* y offsets */
+ { 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 0*8 },
+ 8*8 /* every char takes 8 bytes */
+};
+
+static GFXDECODE_START( bcs3 )
+ GFXDECODE_ENTRY( "chargen", 0x0000, bcs3_charlayout, 0, 1 )
+GFXDECODE_END
+
+
+static MACHINE_CONFIG_START( bcs3, bcs3_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80, XTAL_5MHz /2)
+ MCFG_CPU_PROGRAM_MAP(bcs3_mem)
+ MCFG_CPU_IO_MAP(bcs3_io)
+
+ /* 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(28*8, 12*10)
+ MCFG_SCREEN_VISIBLE_AREA(0,28*8-1,0,12*10-1)
+ MCFG_SCREEN_UPDATE_STATIC(bcs3)
+ MCFG_GFXDECODE(bcs3)
+ MCFG_PALETTE_LENGTH(2)
+ MCFG_PALETTE_INIT(black_and_white)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( bcs3a, bcs3 )
+ /* basic machine hardware */
+ MCFG_CPU_MODIFY( "maincpu" )
+ MCFG_CPU_PROGRAM_MAP(bcs3a_mem)
+
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_SIZE(29*8, 12*10)
+ MCFG_SCREEN_VISIBLE_AREA(0,29*8-1,0,12*10-1)
+ MCFG_SCREEN_UPDATE_STATIC(bcs3a)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( bcs3b, bcs3 )
+ /* basic machine hardware */
+ MCFG_CPU_REPLACE( "maincpu", Z80, XTAL_7MHz / 2)
+ MCFG_CPU_PROGRAM_MAP(bcs3b_mem)
+
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_SIZE(40*8, 24*10)
+ MCFG_SCREEN_VISIBLE_AREA(0,40*8-1,0,24*10-1)
+ MCFG_SCREEN_UPDATE_STATIC(bcs3b)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( bcs3c, bcs3 )
+ /* basic machine hardware */
+ MCFG_CPU_MODIFY( "maincpu" )
+ MCFG_CPU_PROGRAM_MAP(bcs3c_mem)
+
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_SIZE(29*8, 12*10)
+ MCFG_SCREEN_VISIBLE_AREA(0,29*8-1,0,12*10-1)
+ MCFG_SCREEN_UPDATE_STATIC(bcs3c)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( bcs3 )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "se24.bin", 0x0000, 0x0800, CRC(268de5ee) SHA1(78784945956c1b0282a4e82ad55e7c3a77389e50))
+
+ ROM_REGION( 0x0400, "chargen", 0 )
+ ROM_LOAD( "se24font.bin", 0x0000, 0x0400, CRC(eaed9d84) SHA1(7023a6187cd6bd0c6489d76ff662453f14e5b636))
+ROM_END
+
+ROM_START( bcs3a )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "se31_29.bin", 0x0000, 0x1000, CRC(e9b55544) SHA1(82bae68c4bcaecf66632f5b43913b50a1acba316))
+ ROM_LOAD( "se31mceditor.bin", 0xf000, 0x0400, CRC(8eac92ec) SHA1(8950a3ef05d02abf34269bfce002c46d273ce113))
+
+ ROM_REGION( 0x0400, "chargen", 0 )
+ ROM_LOAD( "se31font.bin", 0x0000, 0x0400, CRC(a20c93c9) SHA1(b2be1c0d98b7ac05713349b099b392975968be1d))
+ROM_END
+
+ROM_START( bcs3b )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "se31_40.bin", 0x0000, 0x1000, CRC(4e993152) SHA1(6bb01ff5779627fa2eb2df432fffcfccc1e33231))
+ ROM_LOAD( "se31mceditor.bin", 0xf000, 0x0400, CRC(8eac92ec) SHA1(8950a3ef05d02abf34269bfce002c46d273ce113))
+
+ ROM_REGION( 0x0400, "chargen", 0 )
+ ROM_LOAD( "se31font.bin", 0x0000, 0x0400, CRC(a20c93c9) SHA1(b2be1c0d98b7ac05713349b099b392975968be1d))
+ROM_END
+
+ROM_START( bcs3c )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "sp33_29.bin", 0x0000, 0x1000, CRC(1c851eb2) SHA1(4f8bb5274ea1861a35a840e8f3482bdc693047c4))
+
+ ROM_REGION( 0x0400, "chargen", 0 )
+ ROM_LOAD( "sp33font.bin", 0x0000, 0x0400, CRC(b27f1c07) SHA1(61c80c585f198370ba5e856839c12b15acdc58ee))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1984, bcs3, 0, 0, bcs3, bcs3, driver_device, 0, "Eckhard Schiller", "BCS 3 rev 2.4", GAME_NOT_WORKING | GAME_NO_SOUND)
+COMP( 1986, bcs3a, bcs3, 0, bcs3a, bcs3, driver_device, 0, "Eckhard Schiller", "BCS 3 rev 3.1 29-column", GAME_NOT_WORKING | GAME_NO_SOUND)
+COMP( 1986, bcs3b, bcs3, 0, bcs3b, bcs3, driver_device, 0, "Eckhard Schiller", "BCS 3 rev 3.1 40-column", GAME_NOT_WORKING | GAME_NO_SOUND)
+COMP( 198?, bcs3c, bcs3, 0, bcs3c, bcs3, driver_device, 0, "Eckhard Schiller", "BCS 3 rev 3.3", GAME_NOT_WORKING | GAME_NO_SOUND)