From 3e751b3ba99677dddb67fc02d8005891e1acfbee Mon Sep 17 00:00:00 2001 From: Robbbert Date: Wed, 16 Jan 2013 23:16:12 +0000 Subject: [PATCH] (MESS) Placeholder for new system (nw) --- src/mess/drivers/binbug.c | 151 ++++++++++++++++++++++++++++++++++++-- src/mess/mess.lst | 1 + 2 files changed, 147 insertions(+), 5 deletions(-) diff --git a/src/mess/drivers/binbug.c b/src/mess/drivers/binbug.c index ede78fe5d2c..ca710ce6b59 100644 --- a/src/mess/drivers/binbug.c +++ b/src/mess/drivers/binbug.c @@ -19,7 +19,7 @@ video output. Method of output is through a DG640 board (sold by Applied Technology) which uses a MCM6574 as a character generator. The DG640 also supports blinking, reverse-video, and LORES graphics. - It is a S100 card. + It is a S100 card, also known as ETI-640. Keyboard input, like PIPBUG, is via a serial device. The baud rate is 300, 8N1. @@ -36,8 +36,8 @@ - 5.2 ACOS tape system, 1200 baud terminal - Status: - - DG640 is completely emulated, even though BINBUG doesn't use most + Status: + - DG640 is completely emulated, even though BINBUG doesn't use most of its features. - BINBUG works except that the cassette interface isn't the same as real hardware. But you can save, and load it back. @@ -73,8 +73,8 @@ public: UINT8 m_framecnt; virtual void video_start(); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - required_device m_keyboard; - required_device m_cass; + optional_device m_keyboard; + optional_device m_cass; required_shared_ptr m_p_videoram; required_shared_ptr m_p_attribram; }; @@ -330,3 +330,144 @@ ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1980, binbug, pipbug, 0, binbug, binbug, driver_device, 0, "MicroByte", "BINBUG 3.6", 0 ) + + + +/******************************************************************************************************************/ + +/* + +DGOS-Z80 (ETI-680) + +ROM is a bad dump, corrections are being made. +*/ + + +#include "cpu/z80/z80.h" +#include "machine/z80ctc.h" +#include "machine/z80pio.h" + +class dgosz80_state : public binbug_state +{ +public: + dgosz80_state(const machine_config &mconfig, device_type type, const char *tag) + : binbug_state(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_ctc(*this, "z80ctc"), + m_pio(*this, "z80pio") + { } + + DECLARE_READ8_MEMBER(porta_r); + DECLARE_WRITE8_MEMBER(kbd_put); + UINT8 m_term_data; + virtual void machine_reset(); + required_device m_maincpu; + required_device m_ctc; + required_device m_pio; +}; + +static ADDRESS_MAP_START(dgosz80_mem, AS_PROGRAM, 8, dgosz80_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE( 0x0000, 0xcfff) AM_RAM + AM_RANGE( 0xd000, 0xd7ff) AM_ROM + AM_RANGE( 0xd800, 0xefff) AM_RAM + AM_RANGE( 0xf000, 0xf3ff) AM_RAM AM_SHARE("videoram") + AM_RANGE( 0xf400, 0xf7ff) AM_RAM AM_SHARE("attribram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START(dgosz80_io, AS_IO, 8, dgosz80_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00,0x03) AM_DEVREADWRITE("z80pio", z80pio_device, read_alt, write_alt) + AM_RANGE(0x04,0x07) AM_DEVREADWRITE("z80ctc", z80ctc_device, read, write) + //AM_RANGE(0x08,0x08) SWP Control and Status + //AM_RANGE(0x09,0x09) parallel input port + // Optional AM9519 Programmable Interrupt Controller (port c = data, port d = control) + //AM_RANGE(0x0c,0x0d) AM_DEVREADWRITE("am9519", am9519_device, read, write) +ADDRESS_MAP_END + +void dgosz80_state::machine_reset() +{ + m_maincpu->set_pc(0xd000); +} + +/* Input ports */ +static INPUT_PORTS_START( dgosz80 ) +INPUT_PORTS_END + +WRITE8_MEMBER( dgosz80_state::kbd_put ) +{ + m_term_data = data; + m_pio->port_a_write(data);//keyb_r(generic_space(),0,0xff)); +} + +static ASCII_KEYBOARD_INTERFACE( dgosz80_keyboard_intf ) +{ + DEVCB_DRIVER_MEMBER(dgosz80_state, kbd_put) +}; + +READ8_MEMBER( dgosz80_state::porta_r ) +{ + UINT8 data = m_term_data; + m_term_data = 0; + return data; +} + +static Z80PIO_INTERFACE( z80pio_intf ) +{ + DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), //IRQ + DEVCB_DRIVER_MEMBER(dgosz80_state, porta_r), // in port A + DEVCB_NULL, // out port A + DEVCB_NULL, + DEVCB_NULL, // in port B + DEVCB_NULL, // out port B + DEVCB_NULL +}; + +static Z80CTC_INTERFACE( z80ctc_intf ) +{ + DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), // interrupt handler + DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg1), // ZC/TO0 callback + DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg2), // ZC/TO1 callback, beep interface + DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg3) // ZC/TO2 callback +}; + +static MACHINE_CONFIG_START( dgosz80, dgosz80_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_8MHz / 4) + MCFG_CPU_PROGRAM_MAP(dgosz80_mem) + MCFG_CPU_IO_MAP(dgosz80_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_UPDATE_DRIVER(binbug_state, screen_update) + MCFG_SCREEN_SIZE(512, 256) + MCFG_SCREEN_VISIBLE_AREA(0, 511, 0, 255) + MCFG_GFXDECODE(dg640) + MCFG_PALETTE_LENGTH(2) + MCFG_PALETTE_INIT(monochrome_amber) + + /* Keyboard */ + MCFG_ASCII_KEYBOARD_ADD("keyb", dgosz80_keyboard_intf) + + /* Devices */ + MCFG_Z80CTC_ADD( "z80ctc", XTAL_8MHz / 4, z80ctc_intf ) + MCFG_Z80PIO_ADD( "z80pio", XTAL_8MHz / 4, z80pio_intf ) +MACHINE_CONFIG_END + + +/* ROM definition */ +ROM_START( dgosz80 ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "dgosz80.rom", 0xd000, 0x0800, NO_DUMP) //CRC(2cb1ac6e) SHA1(a969883fc767484d6b0fa103cfa4b4129b90441b) ) + + ROM_REGION( 0x0800, "chargen", 0 ) + ROM_LOAD( "6574.bin", 0x0000, 0x0800, CRC(fd75df4f) SHA1(4d09aae2f933478532b7d3d1a2dee7123d9828ca) ) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP( 1980, dgosz80, 0, 0, dgosz80, dgosz80, driver_device, 0, "David Griffiths", "DGOS-Z80 1.4", GAME_NOT_WORKING | GAME_NO_SOUND_HW ) diff --git a/src/mess/mess.lst b/src/mess/mess.lst index 2c0909fc6ff..ff844a074e7 100644 --- a/src/mess/mess.lst +++ b/src/mess/mess.lst @@ -2196,3 +2196,4 @@ br8641 nectk85 nd80z binbug +dgosz80