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diff --git a/src/mame/drivers/llc.c b/src/mame/drivers/llc.c
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+// license:BSD-3-Clause
+// copyright-holders:Miodrag Milanovic, Robbbert
+/******************************************************************************
+
+ LLC driver by Miodrag Milanovic
+
+ 17/04/2009 Preliminary driver.
+
+ July 2012, updates by Robbbert
+
+ Very little info available on these computers.
+
+ LLC1:
+ Handy addresses (set the pc register in the debugger, because the
+ monitor's Go command has problems):
+ 0800 = BASIC cold start
+ 0803 = BASIC warm start
+ 13BE = display Monitor logo
+ This machine has an 8-digit LED display with hex keyboard,
+ and also a 64x16 monochrome screen with full keyboard.
+ The monitor uses the hex keyboard, while Basic uses the full keyboard.
+ Monitor output is on the digits, but the single-step command displays
+ a running register dump on the main screen.
+ There are no storage facilities, and no sound.
+ BASIC is integer only (-32768 to 32767), about 6k of space, and all
+ input is to be in uppercase. It does have minimal string capability,
+ but there is no $ sign, so how to create a string variable is unknown.
+ To exit back to the monitor, type BYE.
+ The user instructions of the monitor (in German) are here:
+ http://www.jens-mueller.org/jkcemu/llc1.html
+
+ LLC2:
+ The BEL character plays a short tune.
+ In the monitor, it is case sensitive, most commands are uppercase,
+ but some are lowercase.
+ To start Basic, the command is b. To quit basic, use BYE.
+ Inside Basic, it is not case-sensitive.
+
+ ToDo:
+ - LLC1: Get good dump of monitor rom, has a number of bad bytes
+ - LLC1: In Basic, pressing enter several times causes the start
+ of the line to be shifted 1 or 2 characters to the right.
+ - LLC1: Go command crashes
+ - LLC2: Keyboard is incomplete
+ - Lots of other things
+
+*******************************************************************************/
+
+
+#include "machine/keyboard.h"
+#include "includes/llc.h"
+#include "llc1.lh"
+
+#define KEYBOARD_TAG "keyboard"
+
+/* Address maps */
+static ADDRESS_MAP_START( llc1_mem, AS_PROGRAM, 8, llc_state )
+ AM_RANGE(0x0000, 0x07ff) AM_ROM // Monitor ROM
+ AM_RANGE(0x0800, 0x13ff) AM_ROM // BASIC ROM
+ AM_RANGE(0x1400, 0x1bff) AM_RAM // RAM
+ AM_RANGE(0x1c00, 0x1fff) AM_RAM AM_SHARE("videoram") // Video RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( llc1_io, AS_IO, 8, llc_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0xEC, 0xEF) AM_DEVREADWRITE("z80pio2", z80pio_device, read, write)
+ AM_RANGE(0xF4, 0xF7) AM_DEVREADWRITE("z80pio1", z80pio_device, read, write)
+ AM_RANGE(0xF8, 0xFB) AM_DEVREADWRITE("z80ctc", z80ctc_device, read, write)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( llc2_mem, AS_PROGRAM, 8, llc_state )
+ AM_RANGE(0x0000, 0x3fff) AM_RAMBANK("bank1")
+ AM_RANGE(0x4000, 0x5fff) AM_RAMBANK("bank2")
+ AM_RANGE(0x6000, 0xbfff) AM_RAMBANK("bank3")
+ AM_RANGE(0xc000, 0xffff) AM_RAMBANK("bank4")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( llc2_io, AS_IO, 8, llc_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0xE0, 0xE3) AM_WRITE(llc2_rom_disable_w)
+ AM_RANGE(0xE4, 0xE7) AM_DEVREADWRITE("z80pio2", z80pio_device, read, write)
+ AM_RANGE(0xE8, 0xEB) AM_DEVREADWRITE("z80pio1", z80pio_device, read, write)
+ AM_RANGE(0xEC, 0xEC) AM_WRITE(llc2_basic_enable_w)
+ AM_RANGE(0xF8, 0xFB) AM_DEVREADWRITE("z80ctc", z80ctc_device, read, write)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( llc1 )
+ PORT_START("X4") // out F4,BF
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+ PORT_START("X5") // out F4,DF
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
+ 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_KEYBOARD) PORT_NAME("REG") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M (Mem)") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ST (Start)") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('^')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) // resets
+ PORT_START("X6") // out F4,EF
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ES (Step)") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DL (Go)") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("HP (BP)") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) // does nothing
+INPUT_PORTS_END
+
+static INPUT_PORTS_START( llc2 )
+INPUT_PORTS_END
+
+
+WRITE8_MEMBER( llc_state::kbd_put )
+{
+ static UINT8 s1[16]={0x40, 0x1e, 0x12, 0x1b, 0x19, 0x14, 0x15, 0x1d, 0x16, 0x17, 0x1c, 0x3c, 0x3f, 0x3d, 0x3e, 0x10}; // 0x20 to 0x2F
+ static UINT8 s2[7] ={0x1a, 0x11, 0x7c, 0x13, 0x7b, 0x1f, 0x00}; // 0x3A to 0x40
+ static UINT8 s3[6] ={0x5c, 0x00, 0x5b, 0x7e, 0x00, 0x5e}; // 0x5B to 0x60
+
+ m_term_data = data;
+
+ if ((data >= 0x20) && (data <= 0x2f))
+ m_term_data = s1[data-0x20];
+ else
+ if ((data >= 0x3a) && (data <= 0x40))
+ m_term_data = s2[data-0x3a];
+ else
+ if ((data >= 0x5b) && (data <= 0x60))
+ m_term_data = s3[data-0x5b];
+ else
+ if (data >= 0x7b)
+ m_term_data = 0;
+
+ if (m_term_data)
+ m_term_status = 0xff;
+}
+
+static const z80_daisy_config llc1_daisy_chain[] =
+{
+ { "z80ctc" },
+ { NULL }
+};
+
+static const z80_daisy_config llc2_daisy_chain[] =
+{
+ { "z80pio1" },
+ { "z80ctc" },
+ { NULL }
+};
+
+/* F4 Character Displayer */
+static const gfx_layout llc1_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 */
+ { 0, 1*128*8, 2*128*8, 3*128*8, 4*128*8, 5*128*8, 6*128*8, 7*128*8 },
+ 8 /* every char takes 8 x 1 bytes */
+};
+
+static const gfx_layout llc2_charlayout =
+{
+ 8, 8, /* 8 x 8 characters */
+ 256, /* 256 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ /* y offsets */
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
+ 8*8 /* every char takes 8 bytes */
+};
+
+static GFXDECODE_START( llc1 )
+ GFXDECODE_ENTRY( "chargen", 0x0000, llc1_charlayout, 0, 1 )
+GFXDECODE_END
+
+static GFXDECODE_START( llc2 )
+ GFXDECODE_ENTRY( "chargen", 0x0000, llc2_charlayout, 0, 1 )
+GFXDECODE_END
+
+/* Machine driver */
+static MACHINE_CONFIG_START( llc1, llc_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_3MHz)
+ MCFG_CPU_CONFIG(llc1_daisy_chain)
+ MCFG_CPU_PROGRAM_MAP(llc1_mem)
+ MCFG_CPU_IO_MAP(llc1_io)
+
+ MCFG_MACHINE_START_OVERRIDE(llc_state, llc1 )
+ MCFG_MACHINE_RESET_OVERRIDE(llc_state, llc1 )
+
+ /* 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(64*8, 16*8)
+ MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 16*8-1)
+ MCFG_SCREEN_UPDATE_DRIVER(llc_state, screen_update_llc1)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", llc1)
+ MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
+ MCFG_DEFAULT_LAYOUT(layout_llc1)
+
+ MCFG_DEVICE_ADD("z80pio1", Z80PIO, XTAL_3MHz)
+ MCFG_Z80PIO_IN_PA_CB(READ8(llc_state, llc1_port1_a_r))
+ MCFG_Z80PIO_OUT_PA_CB(WRITE8(llc_state, llc1_port1_a_w))
+ MCFG_Z80PIO_OUT_PB_CB(WRITE8(llc_state, llc1_port1_b_w))
+
+ MCFG_DEVICE_ADD("z80pio2", Z80PIO, XTAL_3MHz)
+ MCFG_Z80PIO_IN_PA_CB(READ8(llc_state, llc1_port2_a_r))
+ MCFG_Z80PIO_IN_PB_CB(READ8(llc_state, llc1_port2_b_r))
+
+ MCFG_DEVICE_ADD("z80ctc", Z80CTC, XTAL_3MHz)
+ // timer 0 irq does digit display, and timer 3 irq does scan of the
+ // monitor keyboard.
+ // No idea how the CTC is connected, so guessed.
+ MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
+ MCFG_Z80CTC_ZC0_CB(DEVWRITELINE("z80ctc", z80ctc_device, trg1))
+ MCFG_Z80CTC_ZC1_CB(DEVWRITELINE("z80ctc", z80ctc_device, trg3))
+
+ MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0)
+ MCFG_GENERIC_KEYBOARD_CB(WRITE8(llc_state, kbd_put))
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_START( llc2, llc_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_3MHz)
+ MCFG_CPU_CONFIG(llc2_daisy_chain)
+ MCFG_CPU_PROGRAM_MAP(llc2_mem)
+ MCFG_CPU_IO_MAP(llc2_io)
+
+ MCFG_MACHINE_RESET_OVERRIDE(llc_state, llc2 )
+
+ /* 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(64*8, 32*8)
+ MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 32*8-1)
+ MCFG_SCREEN_UPDATE_DRIVER(llc_state, screen_update_llc2)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", llc2)
+ MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
+
+ MCFG_DEVICE_ADD("z80pio1", Z80PIO, XTAL_3MHz)
+ MCFG_Z80PIO_IN_PA_CB(DEVREAD8(K7659_KEYBOARD_TAG, k7659_keyboard_device, read))
+ MCFG_Z80PIO_IN_PB_CB(READ8(llc_state, llc2_port1_b_r))
+ MCFG_Z80PIO_OUT_PB_CB(WRITE8(llc_state, llc2_port1_b_w))
+
+ MCFG_DEVICE_ADD("z80pio2", Z80PIO, XTAL_3MHz)
+ MCFG_Z80PIO_IN_PA_CB(READ8(llc_state, llc2_port2_a_r))
+
+ MCFG_DEVICE_ADD("z80ctc", Z80CTC, XTAL_3MHz)
+
+ MCFG_K7659_KEYBOARD_ADD()
+
+ /* internal ram */
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("64K")
+MACHINE_CONFIG_END
+/* ROM definition */
+
+ROM_START( llc1 )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ //ROM_LOAD( "llc1-monitor.rom", 0x0000, 0x0800, BAD_DUMP CRC(0e81378d) SHA1(0fbb6eca016d0f439ea1c9aa0cb0affb5f49ea69) )
+ ROM_LOAD( "llc1mon.bin", 0x0000, 0x0800, BAD_DUMP CRC(e291dd63) SHA1(31a71bef84f7c164a270d0895cb645e078e9c6f2) )
+ ROM_LOAD( "llc1_tb1.bin", 0x0800, 0x0400, CRC(0d9d4039) SHA1(b515e385af57f4faf3a9f7b4a1edd59a1c1ea260) )
+ ROM_LOAD( "llc1_tb2.bin", 0x0c00, 0x0400, CRC(28bfea2a) SHA1(a68a8b87bfc931627ddd8d124b153e511477fbaf) )
+ ROM_LOAD( "llc1_tb3.bin", 0x1000, 0x0400, CRC(fe5e3132) SHA1(cc3b191e41f5772a4b86b8eb0ebe6fce67872df6) )
+ ROM_FILL(0x23b, 1, 0x00) // don't reboot when typing into the monitor
+ ROM_FILL(0x2dc, 1, 0x0f) // fix display of AF in the reg command
+ ROM_REGION(0x0400, "chargen",0)
+ ROM_LOAD ("llc1_zg.bin", 0x0000, 0x0400, CRC(fa2cd659) SHA1(1fa5f9992f35929f656c4ce55ed6980c5da1772b) )
+ROM_END
+
+ROM_START( llc2 )
+ ROM_REGION( 0x12000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "scchmon_91.bin", 0x0000, 0x1000, CRC(218d8236) SHA1(b8297272cc79751afc2eb8688d99b40691346dcb) )
+ ROM_LOAD( "gsbasic.bin", 0x10000, 0x2000, CRC(78a5f388) SHA1(e7b475b98dce36b24540ad11eb89046ddb4f02af) )
+ ROM_REGION(0x0800, "chargen",0)
+ ROM_LOAD ("llc2font.bin", 0x0000, 0x0800, CRC(ce53e55d) SHA1(da23d93f14a8a1f8d82bb72470a96b0bfd81ed1b) )
+ROM_END
+
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1984, llc1, 0, 0, llc1, llc1, llc_state, llc1, "SCCH", "LLC-1", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW)
+COMP( 1984, llc2, llc1, 0, llc2, llc2, llc_state, llc2, "SCCH", "LLC-2", 0 )