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Diffstat (limited to 'src/mame/drivers/isbc8010.cpp')
-rw-r--r--src/mame/drivers/isbc8010.cpp284
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diff --git a/src/mame/drivers/isbc8010.cpp b/src/mame/drivers/isbc8010.cpp
deleted file mode 100644
index ccb276ddde9..00000000000
--- a/src/mame/drivers/isbc8010.cpp
+++ /dev/null
@@ -1,284 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nigel Barnes,Ryan Holtz
-/***************************************************************************
-
- Intel SBC 80/10 and SBC 80/10A Single Board Computers
-
-The difference between the SBC 80/10 and SBC 80/10A is in the type and
-quantity of memory available on each board.
-
-There is no speaker or storage facility in the standard kit.
-
-Download the User Manual to get the operating procedures.
-
-Monitor Commands:
-D Display memory command
-G Program execute command
-I Insert instructions into memory
-M Move memory command
-R Read hexadecimal file
-S Substitute memory command
-W Write hexadecimal file
-X Examine and modify CPU registers command
-
-No known manual or schematic of the video board.
-
-****************************************************************************/
-
-#include "emu.h"
-#include "cpu/i8085/i8085.h"
-#include "machine/i8255.h"
-#include "machine/i8251.h"
-#include "machine/clock.h"
-#include "bus/rs232/rs232.h"
-//#include "machine/ay31015.h"
-
-#define I8255A_1_TAG "ppi8255_1"
-#define I8255A_2_TAG "ppi8255_2"
-#define I8251A_TAG "usart"
-#define I8251A_BAUD_TAG "usart_baud"
-#define RS232_TAG "rs232"
-
-class isbc8010_state : public driver_device
-{
-public:
- isbc8010_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_usart(*this, I8251A_TAG)
- , m_ppi_0(*this, I8255A_1_TAG)
- , m_ppi_1(*this, I8255A_2_TAG)
- , m_rs232(*this, RS232_TAG)
- , m_usart_baud_rate(*this, I8251A_BAUD_TAG)
- , m_usart_divide_counter(0)
- , m_usart_clock_state(0)
- { }
-
- void isbc8010b(machine_config &config);
- void isbc8010a(machine_config &config);
- void isbc8010(machine_config &config);
-
-private:
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- DECLARE_WRITE_LINE_MEMBER( usart_clock_tick );
-
- void isbc8010_io(address_map &map);
- void isbc8010_mem(address_map &map);
- void isbc8010a_mem(address_map &map);
- void isbc8010b_mem(address_map &map);
-
- required_device<cpu_device> m_maincpu;
- required_device<i8251_device> m_usart;
- required_device<i8255_device> m_ppi_0;
- required_device<i8255_device> m_ppi_1;
- required_device<rs232_port_device> m_rs232;
- required_ioport m_usart_baud_rate;
-
- uint8_t m_usart_divide_counter;
- uint8_t m_usart_clock_state;
-};
-
-void isbc8010_state::isbc8010_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x0fff).rom();
- map(0x3c00, 0x3fff).ram();
-}
-
-void isbc8010_state::isbc8010a_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x1fff).rom();
- map(0x3c00, 0x3fff).ram();
-}
-
-void isbc8010_state::isbc8010b_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x3bff).rom();
- map(0x3c00, 0x3fff).ram();
-}
-
-void isbc8010_state::isbc8010_io(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0xe4, 0xe7).rw(m_ppi_0, FUNC(i8255_device::read), FUNC(i8255_device::write));
- map(0xe8, 0xeb).rw(m_ppi_1, FUNC(i8255_device::read), FUNC(i8255_device::write));
- map(0xec, 0xed).mirror(0x02).rw(m_usart, FUNC(i8251_device::read), FUNC(i8251_device::write));
- //map(0xf0, 0xf7) MCS0 - iSBX Multimodule
- //map(0xf8, 0xff) MCS1 - iSBX Multimodule
-}
-
-static INPUT_PORTS_START( isbc8010 )
- PORT_START(I8251A_BAUD_TAG)
- PORT_DIPNAME( 0x3f, 0x01, "i8251 Baud Rate" )
- PORT_DIPSETTING( 0x01, "4800")
- PORT_DIPSETTING( 0x02, "2400")
- PORT_DIPSETTING( 0x04, "1200")
- PORT_DIPSETTING( 0x08, "600")
- PORT_DIPSETTING( 0x10, "300")
- PORT_DIPSETTING( 0x20, "150")
- PORT_DIPSETTING( 0x40, "75")
-INPUT_PORTS_END
-
-#if 0
-/* Graphics Output */
-const gfx_layout sdk80_charlayout =
-{
- 7, 8, /* character cell is 7 pixels wide by 8 pixels high */
- 64, /* 64 characters in 2513 character generator ROM */
- 1, /* 1 bitplane */
- { 0 },
- /* 5 visible pixels per row, starting at bit 3, with MSB being 0: */
- { 3, 4, 5, 6, 7 },
- /* pixel rows stored from top to bottom: */
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8 * 8 /* 8 8-bit pixel rows per character */
-};
-
-static GFXDECODE_START( gfx_isbc8010 )
- GFXDECODE_ENTRY( "gfx1", 0x0000, sdk80_charlayout, 0, 1 )
-GFXDECODE_END
-#endif
-
-uint32_t isbc8010_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- return 0;
-}
-
-WRITE_LINE_MEMBER( isbc8010_state::usart_clock_tick )
-{
- uint8_t old_counter = m_usart_divide_counter;
- m_usart_divide_counter++;
-
- uint8_t transition = (old_counter ^ m_usart_divide_counter) & m_usart_baud_rate->read();
- if (transition)
- {
- m_usart->write_txc(m_usart_clock_state);
- m_usart->write_rxc(m_usart_clock_state);
- m_usart_clock_state ^= 1;
- }
-}
-
-static DEVICE_INPUT_DEFAULTS_START( terminal ) // set up terminal to default to 4800
- DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_4800 )
- DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_4800 )
- DEVICE_INPUT_DEFAULTS( "RS232_STARTBITS", 0xff, RS232_STARTBITS_1 )
- DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_8 )
- DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_NONE )
- DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 )
-DEVICE_INPUT_DEFAULTS_END
-
-void isbc8010_state::isbc8010(machine_config &config)
-{
- /* basic machine hardware */
- I8080A(config, m_maincpu, XTAL(18'432'000)/9);
- m_maincpu->set_addrmap(AS_PROGRAM, &isbc8010_state::isbc8010_mem);
- m_maincpu->set_addrmap(AS_IO, &isbc8010_state::isbc8010_io);
-
- I8251(config, m_usart, 0);
- m_usart->txd_handler().set(RS232_TAG, FUNC(rs232_port_device::write_txd));
- m_usart->dtr_handler().set(RS232_TAG, FUNC(rs232_port_device::write_dtr));
- m_usart->rts_handler().set(RS232_TAG, FUNC(rs232_port_device::write_rts));
-
- I8255A(config, m_ppi_0);
- I8255A(config, m_ppi_1);
-
- RS232_PORT(config, m_rs232, default_rs232_devices, "terminal");
- m_rs232->rxd_handler().set(m_usart, FUNC(i8251_device::write_rxd));
- m_rs232->dsr_handler().set(m_usart, FUNC(i8251_device::write_dsr));
- m_rs232->cts_handler().set(m_usart, FUNC(i8251_device::write_cts));
- m_rs232->set_option_device_input_defaults("terminal", DEVICE_INPUT_DEFAULTS_NAME(terminal));
-
- clock_device &usart_clock(CLOCK(config, "usart_clock", XTAL(18'432'000)/60));
- usart_clock.signal_handler().set(FUNC(isbc8010_state::usart_clock_tick));
-
- /* video hardware */
- // 96364 crt controller
-
-// screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
-// screen.set_refresh_hz(60);
- /* Video is blanked for 70 out of 262 scanlines per refresh cycle.
- Each scanline is composed of 65 character times, 40 of which
- are visible, and each character time is 7 dot times; a dot time
- is 2 cycles of the fundamental 14.31818 MHz oscillator. The
- total blanking time is about 4450 microseconds. */
-// screen.set_vblank_time(ATTOSECONDS_IN_USEC((int) (70 * 65 * 7 * 2 / 14.31818)));
- /* It would be nice if we could implement some sort of display
- overscan here. */
-// screen.set_size(40 * 7, 24 * 8);
-// screen.set_visarea(0, 40 * 7 - 1, 0, 24 * 8 - 1);
-// screen.set_screen_update(FUNC(sdk80_state::screen_update));
-// screen.set_palette("palette");
-
-// GFXDECODE(config, "gfxdecode", "palette", gfx_sdk80);
-
-// PALETTE(config, "palette", palette_device::MONOCHROME);
-
- // Video board UART
-// ay31015_device &hd6402(AY31015(config, "hd6402", 0));
-// MCFG_AY31015_TX_CLOCK(( XTAL(16'000'000) / 16 ) / 256)
-// MCFG_AY31015_RX_CLOCK(( XTAL(16'000'000) / 16 ) / 256)
-// hd6402.read_si_callback().set(FUNC(sdk80_state::nascom1_hd6402_si));
-// hd6402.write_so_callback().set(FUNC(sdk80_state::nascom1_hd6402_so));
-
-// clock_device &uart_clock(CLOCK(config, "uart_clock", (XTAL(16'000'000) / 16) / 256));
-// uart_clock.signal_handler().set("hd6402", FUNC(ay31015_device::write_tcp));
-// uart_clock.signal_handler().append("hd6402", FUNC(ay31015_device::write_rcp));
-
- /* Devices */
-// i8279_device &kbdc(I8279(config, "i8279", 3100000)); // based on divider
-// kbdc.out_irq_callback().set_inputline("maincpu", I8085_RST55_LINE); // irq
-// kbdc.out_sl_callback().set(FUNC(sdk80_state::scanlines_w)); // scan SL lines
-// kbdc.out_disp_callback().set(FUNC(sdk80_state::digit_w)); // display A&B
-// kbdc.in_rl_callback().set(FUNC(sdk80_state::kbd_r)); // kbd RL lines
-// kbdc.in_shift_callback().set_constant(1); // Shift key
-// kbdc.in_ctrl_callback().set_constant(1);
-}
-
-void isbc8010_state::isbc8010a(machine_config &config)
-{
- isbc8010(config);
- /* basic machine hardware */
- m_maincpu->set_addrmap(AS_PROGRAM, &isbc8010_state::isbc8010a_mem);
-}
-
-void isbc8010_state::isbc8010b(machine_config &config)
-{
- isbc8010(config);
- /* basic machine hardware */
- m_maincpu->set_addrmap(AS_PROGRAM, &isbc8010_state::isbc8010b_mem);
-}
-
-/* ROM definition */
-ROM_START( isbc8010 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- ROM_DEFAULT_BIOS("mon11")
- ROM_SYSTEM_BIOS( 0, "mon11", "80/10 Monitor v1.1" )
- ROMX_LOAD( "sbc80p.a23", 0x0000, 0x0400, CRC(bd49a7d6) SHA1(3b2f18abf35efe05f38eb08bf0c6d0f45fa7ae0a), ROM_BIOS(0))
- ROMX_LOAD( "sbc80p.a24", 0x0400, 0x0400, CRC(18131631) SHA1(6fb29df38e056c966dcc95885bc59c2a3caf4baf), ROM_BIOS(0))
-
- ROM_SYSTEM_BIOS( 1, "bas80", "BASIC-80" )
- ROMX_LOAD( "basic_blc_1.a24", 0x0000, 0x0400, CRC(b5e75aee) SHA1(6bd1eb9586d72544e8afb4ae43ecedcefa14da33), ROM_BIOS(1))
- ROMX_LOAD( "basic_blc_2.a25", 0x0400, 0x0400, CRC(0a9ad1ed) SHA1(92c47eadcf8b18eeedcccaa3deb9f1518aaceeae), ROM_BIOS(1))
- ROMX_LOAD( "basic_blc_3.a26", 0x0800, 0x0400, CRC(bc898e4b) SHA1(adc000534db0f736a75fbceed360dc220e02c30d), ROM_BIOS(1))
- ROMX_LOAD( "basic_blc_4.a27", 0x0c00, 0x0400, CRC(568e8b6d) SHA1(22960193d3b0ae1b5d876d8c3b3f3b40db01358c), ROM_BIOS(1))
-
- /* 512-byte Signetics 2513 character generator ROM at location D2-D3 */
- ROM_REGION(0x0200, "gfx1",0)
- ROM_LOAD("s2513.d2", 0x0000, 0x0200, CRC(a7e567fc) SHA1(b18aae0a2d4f92f5a7e22640719bbc4652f3f4ee))
-
- /* 256x4 PROM located on the video board, schematic location P7, to be moved into separate device later */
- ROM_REGION( 0x0120, "proms", 0 )
- ROM_LOAD( "6300__d7.p7", 0x0020, 0x0100, CRC(3eb3a8e4) SHA1(19097b5f60d1030f8b82d9f1d3a241f93e5c75d6) )
-ROM_END
-
-#define rom_isbc8010a rom_isbc8010
-#define rom_isbc8010b rom_isbc8010
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1975, isbc8010, 0, 0, isbc8010, isbc8010, isbc8010_state, empty_init, "Intel", "iSBC 80/10", MACHINE_NO_SOUND_HW )
-COMP( 1977, isbc8010a, isbc8010, 0, isbc8010a, isbc8010, isbc8010_state, empty_init, "Intel", "iSBC 80/10A", MACHINE_NO_SOUND_HW )
-COMP( 1979, isbc8010b, isbc8010, 0, isbc8010b, isbc8010, isbc8010_state, empty_init, "Intel", "iSBC 80/10B", MACHINE_NO_SOUND_HW )