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Diffstat (limited to 'src/mess/drivers/osborne1.c')
-rw-r--r--src/mess/drivers/osborne1.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/src/mess/drivers/osborne1.c b/src/mess/drivers/osborne1.c
deleted file mode 100644
index 4910ee5e0cc..00000000000
--- a/src/mess/drivers/osborne1.c
+++ /dev/null
@@ -1,262 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Wilbert Pol
-/***************************************************************************
-
- Osborne-1 driver file
-
-The Osborne-1 memory is divided into 3 "banks".
-
-Bank 1 simply consists of 64KB of RAM. The upper 4KB is used for the lower 8
-bit of video RAM entries.
-
-Bank 2 holds the BIOS ROM and I/O area. Only addresses 0000-3FFF are used
-by bank 2. Bank 2 is divided as follows:
-3000-3FFF Unused
-2C00-2C03 Video PIA
-2A00-2A01 Serial interface
-2900-2903 488 PIA
-2201-2280 Keyboard
-2100-2103 Floppy
-1000-1FFF Unused
-0000-0FFF BIOS ROM
-
-Bank 3 has the ninth bit needed to complete the full Video RAM. These bits
-are stored at F000-FFFF. Only the highest bit is used.
-
-On bootup bank 2 is active.
-
-The actual banking is done through I/O ports 00-03.
-00 - Have both bank 2 and bank 1 active. This seems to be the power up default.
-01 - Only have bank 1 active.
-02 - Have both bank 2 and bank 3 active. (Not 100% sure, also bank 1 from 4000-EFFF?)
-03 - Have both bank 2 and bank 1 active.
-
-TODO:
- - Verify frequency of the beep/audio alarm.
-
-***************************************************************************/
-
-#include "includes/osborne1.h"
-
-
-#define MAIN_CLOCK 15974400
-
-
-static ADDRESS_MAP_START( osborne1_mem, AS_PROGRAM, 8, osborne1_state )
- AM_RANGE( 0x0000, 0x0FFF ) AM_READ_BANK("bank1") AM_WRITE( osborne1_0000_w )
- AM_RANGE( 0x1000, 0x1FFF ) AM_READ_BANK("bank2") AM_WRITE( osborne1_1000_w )
- AM_RANGE( 0x2000, 0x2FFF ) AM_READWRITE( osborne1_2000_r, osborne1_2000_w )
- AM_RANGE( 0x3000, 0x3FFF ) AM_READ_BANK("bank3") AM_WRITE( osborne1_3000_w )
- AM_RANGE( 0x4000, 0xEFFF ) AM_RAM
- AM_RANGE( 0xF000, 0xFFFF ) AM_READ_BANK("bank4") AM_WRITE( osborne1_videoram_w )
-ADDRESS_MAP_END
-
-
-static ADDRESS_MAP_START( osborne1_io, AS_IO, 8, osborne1_state )
- ADDRESS_MAP_UNMAP_HIGH
- ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE( 0x00, 0x03 ) AM_WRITE( osborne1_bankswitch_w )
-ADDRESS_MAP_END
-
-
-static INPUT_PORTS_START( osborne1 )
- PORT_START("ROW0")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('[') PORT_CHAR(']')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('\'') PORT_CHAR('"')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
-
- PORT_START("ROW1")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
-
- PORT_START("ROW2")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
-
- PORT_START("ROW3")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
-
- PORT_START("ROW4")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
-
- PORT_START("ROW5")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
-
- PORT_START("ROW6")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('\\') PORT_CHAR('|')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
-
- PORT_START("ROW7")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_DIPNAME( 0x08, 0, "Alpha Lock" ) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
- PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
-INPUT_PORTS_END
-
-
-static const z80_daisy_config osborne1_daisy_chain[] =
-{
-/* { osborne1_z80_reset, osborne1_z80_irq_state, osborne1_z80_irq_ack, osborne1_z80_irq_reti, 0 }, */
- { "osborne1_daisy" },
- { NULL }
-};
-
-
-/*
- * The Osborne-1 supports the following disc formats:
- * - Osborne single density: 40 tracks, 10 sectors per track, 256-byte sectors (100 KByte)
- * - Osborne double density: 40 tracks, 5 sectors per track, 1024-byte sectors (200 KByte)
- * - IBM Personal Computer: 40 tracks, 8 sectors per track, 512-byte sectors (160 KByte)
- * - Xerox 820 Computer: 40 tracks, 18 sectors per track, 128-byte sectors (90 KByte)
- * - DEC 1820 double density: 40 tracks, 9 sectors per track, 512-byte sectors (180 KByte)
- *
- */
-
-static SLOT_INTERFACE_START( osborne1_floppies )
- SLOT_INTERFACE( "525sssd", FLOPPY_525_SSSD ) // Siemens FDD 100-5, custom Osborne electronics
- SLOT_INTERFACE( "525ssdd", FLOPPY_525_SSDD ) // MPI 52(?), custom Osborne electronics
-SLOT_INTERFACE_END
-
-
-/* F4 Character Displayer */
-static const gfx_layout osborne1_charlayout =
-{
- 8, 10, /* 8 x 10 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*128*8, 1*128*8, 2*128*8, 3*128*8, 4*128*8, 5*128*8, 6*128*8, 7*128*8, 8*128*8, 9*128*8 },
- 8 /* every char takes 16 x 1 bytes */
-};
-
-static GFXDECODE_START( osborne1 )
- GFXDECODE_ENTRY( "chargen", 0x0000, osborne1_charlayout, 0, 1 )
-GFXDECODE_END
-
-
-static MACHINE_CONFIG_START( osborne1, osborne1_state )
- MCFG_CPU_ADD( "maincpu", Z80, MAIN_CLOCK/4 )
- MCFG_CPU_PROGRAM_MAP( osborne1_mem)
- MCFG_CPU_IO_MAP( osborne1_io)
- MCFG_CPU_CONFIG( osborne1_daisy_chain )
-
- MCFG_DEVICE_ADD( "osborne1_daisy", OSBORNE1_DAISY, 0 )
-
- MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_UPDATE_DRIVER(osborne1_state, screen_update)
- MCFG_SCREEN_RAW_PARAMS( MAIN_CLOCK/2, 512, 0, 416, 260, 0, 240 )
- MCFG_SCREEN_PALETTE("palette")
- MCFG_GFXDECODE_ADD("gfxdecode", "palette", osborne1)
- MCFG_PALETTE_ADD_MONOCHROME_GREEN_HIGHLIGHT("palette")
-
- MCFG_SPEAKER_STANDARD_MONO( "mono" )
- MCFG_SOUND_ADD( "beeper", BEEP, 0 )
- MCFG_SOUND_ROUTE( ALL_OUTPUTS, "mono", 1.00 )
-
- MCFG_DEVICE_ADD("pia_0", PIA6821, 0)
- MCFG_PIA_READPA_HANDLER(DEVREAD8(IEEE488_TAG, ieee488_device, dio_r))
- MCFG_PIA_READPB_HANDLER(READ8(osborne1_state, ieee_pia_pb_r))
- MCFG_PIA_WRITEPA_HANDLER(DEVWRITE8(IEEE488_TAG, ieee488_device, dio_w))
- MCFG_PIA_WRITEPB_HANDLER(WRITE8(osborne1_state, ieee_pia_pb_w))
- MCFG_PIA_CA2_HANDLER(DEVWRITELINE(IEEE488_TAG, ieee488_device, ifc_w))
- MCFG_PIA_CB2_HANDLER(DEVWRITELINE(IEEE488_TAG, ieee488_device, ren_w))
- MCFG_PIA_IRQA_HANDLER(WRITELINE(osborne1_state, ieee_pia_irq_a_func))
-
- MCFG_DEVICE_ADD( "pia_1", PIA6821, 0)
- MCFG_PIA_WRITEPA_HANDLER(WRITE8(osborne1_state, video_pia_port_a_w))
- MCFG_PIA_WRITEPB_HANDLER(WRITE8(osborne1_state, video_pia_port_b_w))
- MCFG_PIA_CB2_HANDLER(WRITELINE(osborne1_state, video_pia_out_cb2_dummy))
- MCFG_PIA_IRQA_HANDLER(WRITELINE(osborne1_state, video_pia_irq_a_func))
-
- MCFG_DEVICE_ADD("mb8877", MB8877, MAIN_CLOCK/16)
- MCFG_WD_FDC_FORCE_READY
- MCFG_FLOPPY_DRIVE_ADD("mb8877:0", osborne1_floppies, "525ssdd", floppy_image_device::default_floppy_formats)
- MCFG_FLOPPY_DRIVE_ADD("mb8877:1", osborne1_floppies, "525ssdd", floppy_image_device::default_floppy_formats)
-
- MCFG_IEEE488_BUS_ADD()
- MCFG_IEEE488_SRQ_CALLBACK(DEVWRITELINE("pia_0", pia6821_device, ca2_w))
- MCFG_SOFTWARE_LIST_ADD("flop_list","osborne1")
-
- /* internal ram */
- MCFG_RAM_ADD(RAM_TAG)
- MCFG_RAM_DEFAULT_SIZE("68K") /* 64KB Main RAM and 4Kbit video attribute RAM */
-MACHINE_CONFIG_END
-
-
-ROM_START( osborne1 )
- ROM_REGION(0x1000, "maincpu", 0)
- ROM_SYSTEM_BIOS( 0, "ver144", "BIOS version 1.44" )
- ROMX_LOAD( "3a10082-00rev-e.ud11", 0x0000, 0x1000, CRC(c0596b14) SHA1(ee6a9cc9be3ddc5949d3379351c1d58a175ce9ac), ROM_BIOS(1) )
- ROM_SYSTEM_BIOS( 1, "verA", "BIOS version A" )
- ROMX_LOAD( "osba.bin", 0x0000, 0x1000, NO_DUMP, ROM_BIOS(2) )
- ROM_SYSTEM_BIOS( 2, "ver12", "BIOS version 1.2" )
- ROMX_LOAD( "osb12.bin", 0x0000, 0x1000, NO_DUMP, ROM_BIOS(3) )
- ROM_SYSTEM_BIOS( 3, "ver121", "BIOS version 1.2.1" )
- ROMX_LOAD( "osb121.bin", 0x0000, 0x1000, NO_DUMP, ROM_BIOS(4) )
- ROM_SYSTEM_BIOS( 4, "ver13", "BIOS version 1.3" )
- ROMX_LOAD( "osb13.bin", 0x0000, 0x1000, NO_DUMP, ROM_BIOS(5) )
- ROM_SYSTEM_BIOS( 5, "ver14", "BISO version 1.4" )
- ROMX_LOAD( "rev1.40.ud11", 0x0000, 0x1000, CRC(3d966335) SHA1(0c60b97a3154a75868efc6370d26995eadc7d927), ROM_BIOS(6) )
- ROM_SYSTEM_BIOS( 6, "ver143", "BIOS version 1.43" )
- ROMX_LOAD( "rev1.43.ud11", 0x0000, 0x1000, CRC(91a48e3c) SHA1(c37b83f278d21e6e92d80f9c057b11f7f22d88d4), ROM_BIOS(7) )
- ROM_REGION( 0x800, "chargen", 0 )
- ROM_LOAD( "7a3007-00.ud15", 0x0000, 0x800, CRC(6c1eab0d) SHA1(b04459d377a70abc9155a5486003cb795342c801) )
- //ROM_LOAD( "char.ua15", 0x0000, 0x800, CRC(5297C109) SHA1(e1a59d87edd66e6c226102cb0688e9cb74dbb594) ) // this is CHRROM from v1.4 BIOS MB. I don't know how to hook up diff CHR to ROM_BIOS(6)
-
-ROM_END
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
-COMP( 1981, osborne1, 0, 0, osborne1, osborne1, osborne1_state, osborne1, "Osborne", "Osborne-1", 0 )