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|
/******************************************************************************
BBC Model A,B
BBC Model B Plus
MESS Driver By:
Gordon Jefferyes
mess_bbc@romvault.com
******************************************************************************/
#include "emu.h"
#include "bus/econet/econet.h"
#include "cpu/m6502/m6502.h"
#include "cpu/m6502/m65sc02.h"
#include "machine/6522via.h"
#include "machine/mc146818.h"
#include "machine/mc6854.h"
#include "machine/upd7002.h"
#include "machine/ctronics.h"
#include "imagedev/flopdrv.h"
#include "formats/basicdsk.h"
#include "imagedev/cartslot.h"
#include "imagedev/cassette.h"
#include "formats/uef_cas.h"
#include "formats/csw_cas.h"
#include "sound/sn76496.h"
#include "video/saa5050.h"
#include "includes/bbc.h"
/******************************************************************************
A= BBC Model A
A B B+ M
+ &0000 + + + +
| | | | |
| &1000 | | | |
|1 | | |1 |1
| &2000 |1 | | |
| | | | |
+ &3000 | | + +
|2 | | | |
+ &4000 + |1 | |
| | | | |
| &5000 | | | |
| | | |2 |2
|3 &6000 |3 | | |
| | | | |
| &7000 | | | |
| | | | |
+ &8000 + + + +
|4 | | | |4
+ &9000 | | | +
| | | |4 |
|5 &A000 |4 |4 | |5
| | | | |
+ &B000 | | + |
|6 | | |6 |
+ &C000 + + + +
| | | | |7
|7 &D000 | | | |
| | | | |
+ &E000 |7 |7 |7 +
| | | | |
|8 &F000 | | | |8
| | | | |
+ &FC00 FRED + + + +
&FD00 JIM + + + +
&FE00 SHEILA + + + +
+ &FF00 + + + +
|9 |9 |9 |9 |9
+ &FFFF + + + +
&00-&07 6845 CRTC Video controller 8 ( 2 bytes x 4 ) 1MHz
&08-&0F 6850 ACIA Serial controller 8 ( 2 bytes x 4 ) 1MHz
&10-&17 Serial ULA Serial system chip 8 ( 1 byte x 8 ) 1MHz
&18-&1f INTOFF/STATID ECONET Interrupt Off / ID No. 8 ( 1 byte x 8 ) 1MHz
write:
&20-&2F Video ULA Video system chip 16 ( 2 bytes x 8 ) 2MHz
&30-&3F 74LS161 Paged ROM selector 16 ( 1 byte x 16 ) 2MHz
read:
&20-&2F INTON ECONET Interrupt On 16 ( 1 bytes x 16 ) 2MHz
&30-&3F Not Connected Not Connected 2MHz
&40-&5F 6522 VIA SYSTEM VIA 32 (16 bytes x 2 ) 1MHz
&60-&7F 6522 VIA USER VIA 32 (16 bytes x 2 ) 1MHz
&80-&9F 8271 FDC FDC Floppy disc controller 32 ( 8 bytes x 4 ) 2MHz
&A0-&BF 68B54 ADLC ECONET controller 32 ( 4 bytes x 8 ) 2MHz
&C0-&DF uPD7002 Analogue to digital converter 32 ( 4 bytes x 8 ) 1MHz
&E0-&FF Tube ULA Tube system interface 32 (32 bytes x 1 ) 2MHz
******************************************************************************/
READ8_MEMBER(bbc_state::bbc_fe_r)
{
return 0xfe;
}
static ADDRESS_MAP_START( bbca_mem, AS_PROGRAM, 8, bbc_state )
ADDRESS_MAP_UNMAP_HIGH /* Hardware marked with a # is not present in a Model A */
AM_RANGE(0x0000, 0x3fff) AM_READ_BANK("bank1") AM_WRITE(bbc_memorya1_w) /* 0000-3fff Regular Ram */
AM_RANGE(0x4000, 0x7fff) AM_READ_BANK("bank3") AM_WRITE(bbc_memorya1_w) /* 4000-7fff Repeat of the Regular Ram */
AM_RANGE(0x8000, 0xbfff) AM_READ_BANK("bank4") /* 8000-bfff Paged ROM */
AM_RANGE(0xc000, 0xfbff) AM_READ_BANK("bank7") /* c000-fbff OS ROM */
AM_RANGE(0xfc00, 0xfdff) AM_NOP /* fc00-fdff FRED & JIM Pages */
/* fe00-feff Shiela Address Page */
AM_RANGE(0xfe00, 0xfe07) AM_READWRITE(bbc_6845_r , bbc_6845_w) /* fe00-fe07 6845 CRTA Video controller */
AM_RANGE(0xfe08, 0xfe08) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, status_read, control_write)
AM_RANGE(0xfe09, 0xfe09) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, data_read, data_write)
AM_RANGE(0xfe10, 0xfe17) AM_READWRITE(bbc_fe_r, bbc_SerialULA_w) /* fe10-fe17 Serial ULA Serial system chip */
AM_RANGE(0xfe18, 0xfe1f) AM_NOP /* fe18-fe1f INTOFF/STATID # ECONET Interrupt Off / ID No. */
AM_RANGE(0xfe20, 0xfe2f) AM_WRITE(bbc_videoULA_w) /* R: fe20-fe2f INTON # ECONET Interrupt On */
/* W: fe20-fe2f Video ULA Video system chip */
AM_RANGE(0xfe30, 0xfe3f) AM_READWRITE(bbc_fe_r, bbc_page_selecta_w) /* R: fe30-fe3f NC Not Connected */
/* W: fe30-fe3f 84LS161 Paged ROM selector */
AM_RANGE(0xfe40, 0xfe5f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* fe40-fe5f 6522 VIA SYSTEM VIA */
AM_RANGE(0xfe60, 0xfe7f) AM_NOP /* fe60-fe7f 6522 VIA # USER VIA */
AM_RANGE(0xfe80, 0xfe9f) AM_NOP /* fe80-fe9f 8271/1770 FDC # Floppy disc controller */
AM_RANGE(0xfea0, 0xfebf) AM_READ(bbc_fe_r) /* fea0-febf 68B54 ADLC # ECONET controller */
AM_RANGE(0xfec0, 0xfedf) AM_NOP /* fec0-fedf uPD7002 # Analogue to digital converter */
AM_RANGE(0xfee0, 0xfeff) AM_READ(bbc_fe_r) /* fee0-feff Tube ULA # Tube system interface */
AM_RANGE(0xff00, 0xffff) AM_ROM AM_REGION("user1", 0x13f00) /* ff00-ffff OS Rom (continued) */
ADDRESS_MAP_END
static ADDRESS_MAP_START( bbcb_mem, AS_PROGRAM, 8, bbc_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x3fff) AM_READ_BANK("bank1") AM_WRITE(bbc_memorya1_w) /* 0000-3fff Regular Ram */
AM_RANGE(0x4000, 0x7fff) AM_READ_BANK("bank3") AM_WRITE(bbc_memoryb3_w) /* 4000-7fff Repeat of the Regular Ram */
AM_RANGE(0x8000, 0xbfff) AM_READ_BANK("bank4") AM_WRITE(bbc_memoryb4_w) /* 8000-bfff Paged ROM */
AM_RANGE(0xc000, 0xfbff) AM_READ_BANK("bank7") /* c000-fbff OS ROM */
AM_RANGE(0xfc00, 0xfdff) AM_READWRITE(bbc_opus_read, bbc_opus_write) /* fc00-fdff OPUS Disc Controller */
/* fe00-feff Shiela Address Page */
AM_RANGE(0xfe00, 0xfe07) AM_READWRITE(bbc_6845_r, bbc_6845_w) /* fe00-fe07 6845 CRTC Video controller */
AM_RANGE(0xfe08, 0xfe08) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, status_read, control_write)
AM_RANGE(0xfe09, 0xfe09) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, data_read, data_write)
AM_RANGE(0xfe10, 0xfe17) AM_READWRITE(bbc_fe_r, bbc_SerialULA_w) /* fe10-fe17 Serial ULA Serial system chip */
AM_RANGE(0xfe18, 0xfe1f) AM_NOP /* fe18-fe1f INTOFF/STATID ECONET Interrupt Off / ID No. */
AM_RANGE(0xfe20, 0xfe2f) AM_WRITE(bbc_videoULA_w) /* R: fe20-fe2f INTON ECONET Interrupt On */
/* W: fe20-fe2f Video ULA Video system chip */
AM_RANGE(0xfe30, 0xfe3f) AM_READWRITE(bbc_fe_r, bbc_page_selectb_w) /* R: fe30-fe3f NC Not Connected */
/* W: fe30-fe3f 84LS161 Paged ROM selector */
AM_RANGE(0xfe40, 0xfe5f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* fe40-fe5f 6522 VIA SYSTEM VIA */
AM_RANGE(0xfe60, 0xfe7f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* fe60-fe7f 6522 VIA USER VIA */
AM_RANGE(0xfe80, 0xfe9f) AM_READWRITE(bbc_disc_r, bbc_disc_w) /* fe80-fe9f 8271 FDC Floppy disc controller */
AM_RANGE(0xfea0, 0xfebf) AM_READ(bbc_fe_r) /* fea0-febf 68B54 ADLC ECONET controller */
AM_RANGE(0xfec0, 0xfedf) AM_DEVREADWRITE_LEGACY("upd7002",uPD7002_r,uPD7002_w) /* fec0-fedf uPD7002 Analogue to digital converter */
AM_RANGE(0xfee0, 0xfeff) AM_READ(bbc_fe_r) /* fee0-feff Tube ULA Tube system interface */
AM_RANGE(0xff00, 0xffff) AM_ROM AM_REGION("user1", 0x43f00) /* ff00-ffff OS Rom (continued) */
ADDRESS_MAP_END
static ADDRESS_MAP_START( bbcbp_mem, AS_PROGRAM, 8, bbc_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x2fff) AM_READ_BANK("bank1") AM_WRITE(bbc_memorybp1_w) /* 0000-2fff Regular Ram */
AM_RANGE(0x3000, 0x7fff) AM_READ_BANK("bank2") AM_WRITE(bbc_memorybp2_w) /* 3000-7fff Video/Shadow Ram */
AM_RANGE(0x8000, 0xafff) AM_READ_BANK("bank4") AM_WRITE(bbc_memorybp4_w) /* 8000-afff Paged ROM or 12K of RAM */
AM_RANGE(0xb000, 0xbfff) AM_READ_BANK("bank6") /* b000-bfff Rest of paged ROM area */
AM_RANGE(0xc000, 0xfbff) AM_READ_BANK("bank7") /* c000-fbff OS ROM */
AM_RANGE(0xfc00, 0xfdff) AM_NOP /* fc00-fdff FRED & JIM Pages */
/* fe00-feff Shiela Address Page */
AM_RANGE(0xfe00, 0xfe07) AM_READWRITE(bbc_6845_r, bbc_6845_w) /* fe00-fe07 6845 CRTC Video controller */
AM_RANGE(0xfe08, 0xfe08) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, status_read, control_write)
AM_RANGE(0xfe09, 0xfe09) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, data_read, data_write)
AM_RANGE(0xfe10, 0xfe17) AM_READWRITE(bbc_fe_r, bbc_SerialULA_w) /* fe10-fe17 Serial ULA Serial system chip */
AM_RANGE(0xfe18, 0xfe1f) AM_NOP /* fe18-fe1f INTOFF/STATID ECONET Interrupt Off / ID No. */
AM_RANGE(0xfe20, 0xfe2f) AM_WRITE(bbc_videoULA_w) /* R: fe20-fe2f INTON ECONET Interrupt On */
/* W: fe20-fe2f Video ULA Video system chip */
AM_RANGE(0xfe30, 0xfe3f) AM_READWRITE(bbc_fe_r, bbc_page_selectbp_w) /* R: fe30-fe3f NC Not Connected */
/* W: fe30-fe3f 84LS161 Paged ROM selector */
AM_RANGE(0xfe40, 0xfe5f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* fe40-fe5f 6522 VIA SYSTEM VIA */
AM_RANGE(0xfe60, 0xfe7f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* fe60-fe7f 6522 VIA USER VIA */
AM_RANGE(0xfe80, 0xfe9f) AM_READWRITE(bbc_wd1770_read, bbc_wd1770_write) /* fe80-fe9f 1770 FDC Floppy disc controller */
AM_RANGE(0xfea0, 0xfebf) AM_READ(bbc_fe_r) /* fea0-febf 68B54 ADLC ECONET controller */
AM_RANGE(0xfec0, 0xfedf) AM_DEVREADWRITE_LEGACY("upd7002", uPD7002_r, uPD7002_w) /* fec0-fedf uPD7002 Analogue to digital converter */
AM_RANGE(0xfee0, 0xfeff) AM_READ(bbc_fe_r) /* fee0-feff Tube ULA Tube system interface */
AM_RANGE(0xff00, 0xffff) AM_ROM AM_REGION("user1", 0x43f00) /* ff00-ffff OS Rom (continued) */
ADDRESS_MAP_END
static ADDRESS_MAP_START( bbcbp128_mem, AS_PROGRAM, 8, bbc_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x2fff) AM_READ_BANK("bank1") AM_WRITE(bbc_memorybp1_w) /* 0000-2fff Regular Ram */
AM_RANGE(0x3000, 0x7fff) AM_READ_BANK("bank2") AM_WRITE(bbc_memorybp2_w) /* 3000-7fff Video/Shadow Ram */
AM_RANGE(0x8000, 0xafff) AM_READ_BANK("bank4") AM_WRITE(bbc_memorybp4_128_w) /* 8000-afff Paged ROM or 12K of RAM */
AM_RANGE(0xb000, 0xbfff) AM_READ_BANK("bank6") AM_WRITE(bbc_memorybp6_128_w) /* b000-bfff Rest of paged ROM area */
AM_RANGE(0xc000, 0xfbff) AM_READ_BANK("bank7") /* c000-fbff OS ROM */
AM_RANGE(0xfc00, 0xfdff) AM_NOP /* fc00-fdff FRED & JIM Pages */
/* fe00-feff Shiela Address Page */
AM_RANGE(0xfe00, 0xfe07) AM_READWRITE(bbc_6845_r, bbc_6845_w) /* fe00-fe07 6845 CRTC Video controller */
AM_RANGE(0xfe08, 0xfe08) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, status_read, control_write)
AM_RANGE(0xfe09, 0xfe09) AM_MIRROR(0x06) AM_DEVREADWRITE("acia6850", acia6850_device, data_read, data_write)
AM_RANGE(0xfe10, 0xfe17) AM_READWRITE(bbc_fe_r, bbc_SerialULA_w) /* fe10-fe17 Serial ULA Serial system chip */
AM_RANGE(0xfe10, 0xfe17) AM_NOP /* fe10-fe17 Serial ULA Serial system chip */
AM_RANGE(0xfe18, 0xfe1f) AM_NOP /* fe18-fe1f INTOFF/STATID ECONET Interrupt Off / ID No. */
AM_RANGE(0xfe20, 0xfe2f) AM_WRITE(bbc_videoULA_w) /* R: fe20-fe2f INTON ECONET Interrupt On */
/* W: fe20-fe2f Video ULA Video system chip */
AM_RANGE(0xfe30, 0xfe3f) AM_READWRITE(bbc_fe_r, bbc_page_selectbp_w) /* R: fe30-fe3f NC Not Connected */
/* W: fe30-fe3f 84LS161 Paged ROM selector */
AM_RANGE(0xfe40, 0xfe5f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* fe40-fe5f 6522 VIA SYSTEM VIA */
AM_RANGE(0xfe60, 0xfe7f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* fe60-fe7f 6522 VIA USER VIA */
AM_RANGE(0xfe80, 0xfe9f) AM_READWRITE(bbc_wd1770_read, bbc_wd1770_write) /* fe80-fe9f 1770 FDC Floppy disc controller */
AM_RANGE(0xfea0, 0xfebf) AM_READ(bbc_fe_r) /* fea0-febf 68B54 ADLC ECONET controller */
AM_RANGE(0xfec0, 0xfedf) AM_DEVREADWRITE_LEGACY("upd7002", uPD7002_r, uPD7002_w) /* fec0-fedf uPD7002 Analogue to digital converter */
AM_RANGE(0xfee0, 0xfeff) AM_READ(bbc_fe_r) /* fee0-feff Tube ULA Tube system interface */
AM_RANGE(0xff00, 0xffff) AM_ROM AM_REGION("user1", 0x43f00) /* ff00-ffff OS Rom (continued) */
ADDRESS_MAP_END
/******************************************************************************
&FC00-&FCFF FRED
&FD00-&FDFF JIM
&FE00-&FEFF SHEILA Read Write
&00-&07 6845 CRTC Video controller Video Controller 8 ( 2 bytes x 4 )
&08-&0F 6850 ACIA Serial controller Serial Controller 8 ( 2 bytes x 4 )
&10-&17 Serial ULA - Serial system chip 8 ( 1 byte x 8 )
&18-&1F uPD7002 A to D converter A to D converter 8 ( 4 bytes x 2 )
&20-&23 Video ULA - Video system chip 4 ( 2 bytes x 2 )
&24-&27 FDC Latch 1770 Control latch 1770 Control latch 4 ( 1 byte x 4 )
&28-&2F 1770 registers 1770 Disc Controller 1170 Disc Controller 8 ( 4 bytes x 2 )
&30-&33 ROMSEL - ROM Select 4 ( 1 byte x 4 )
&34-&37 ACCCON ACCCON select reg. ACCCON select reg 4 ( 1 byte x 4 )
&38-&3F NC - -
&40-&5F 6522 VIA SYSTEM VIA SYSTEM VIA 32 (16 bytes x 2 ) 1MHz
&60-&7F 6522 VIA USER VIA USER VIA 32 (16 bytes x 2 ) 1MHz
&80-&9F Int. Modem Int. Modem Int Modem
&A0-&BF 68B54 ADLC ECONET controller ECONET controller 32 ( 4 bytes x 8 ) 2MHz
&C0-&DF NC - -
&E0-&FF Tube ULA Tube system interface Tube system interface 32 (32 bytes x 1 ) 2MHz
******************************************************************************/
static ADDRESS_MAP_START(bbcm_mem, AS_PROGRAM, 8, bbc_state )
AM_RANGE(0x0000, 0x2fff) AM_READ_BANK("bank1") AM_WRITE(bbc_memorybm1_w) /* 0000-2fff Regular Ram */
AM_RANGE(0x3000, 0x7fff) AM_READ_BANK("bank2") AM_WRITE(bbc_memorybm2_w) /* 3000-7fff Video/Shadow Ram */
AM_RANGE(0x8000, 0x8fff) AM_READ_BANK("bank4") AM_WRITE(bbc_memorybm4_w) /* 8000-8fff Paged ROM/RAM or 4K of RAM ANDY */
AM_RANGE(0x9000, 0xbfff) AM_READ_BANK("bank5") AM_WRITE(bbc_memorybm5_w) /* 9000-bfff Rest of paged ROM/RAM area */
AM_RANGE(0xc000, 0xdfff) AM_READ_BANK("bank7") AM_WRITE(bbc_memorybm7_w) /* c000-dfff OS ROM or 8K of RAM HAZEL */
AM_RANGE(0xe000, 0xfbff) AM_ROM AM_REGION("user1", 0x42000) /* e000-fbff OS ROM */
//AM_RANGE(0xfc00, 0xfeff) AM_READWRITE(bbcm_r, bbcm_w)
AM_RANGE(0xfc00, 0xfeff) AM_READ_BANK("bank8") AM_WRITE(bbcm_w) /* this is now processed directly because it can be ROM or hardware */
AM_RANGE(0xff00, 0xffff) AM_ROM AM_REGION("user1", 0x43f00) /* ff00-ffff OS Rom (continued) */
ADDRESS_MAP_END
static const rgb_t bbc_palette[8]=
{
MAKE_RGB(0x0ff,0x0ff,0x0ff),
MAKE_RGB(0x000,0x0ff,0x0ff),
MAKE_RGB(0x0ff,0x000,0x0ff),
MAKE_RGB(0x000,0x000,0x0ff),
MAKE_RGB(0x0ff,0x0ff,0x000),
MAKE_RGB(0x000,0x0ff,0x000),
MAKE_RGB(0x0ff,0x000,0x000),
MAKE_RGB(0x000,0x000,0x000)
};
PALETTE_INIT_MEMBER(bbc_state,bbc)
{
palette_set_colors(machine(), 0, bbc_palette, ARRAY_LENGTH(bbc_palette));
}
/* 2008-05 FP:
Small note about natural keyboard support: currently,
- "Copy" is mapped to 'F11'
- "Shift Lock" is mapped to 'F12' */
/* Port Key description Emulated key Natural key Shift 1 Shift 2 (Ctrl) */
static INPUT_PORTS_START(bbca)
PORT_START("COL0") /* KEYBOARD COLUMN 0 */
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F0") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPSLOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFTLOCK") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(F12))
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESCAPE") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_START("COL1") /* KEYBOARD COLUMN 1 */
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
PORT_START("COL2") /* KEYBOARD COLUMN 2 */
PORT_DIPNAME(0x01, 0x01, "DIP 8 (Not Used)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
PORT_START("COL3") /* KEYBOARD COLUMN 3 */
PORT_DIPNAME(0x01, 0x01, "DIP 7 (Not Used)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
PORT_START("COL4") /* KEYBOARD COLUMN 4 */
PORT_DIPNAME(0x01, 0x01, "DIP 6 (Disc Speed 1)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 \\") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
PORT_START("COL5") /* KEYBOARD COLUMN 5 */
PORT_DIPNAME(0x01, 0x01, "DIP 5 (Disc Speed 0)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("* (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6))
PORT_START("COL6") /* KEYBOARD COLUMN 6 */
PORT_DIPNAME(0x01, 0x01, "DIP 4 (Shift Break)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7))
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
PORT_START("COL7") /* KEYBOARD COLUMN 7 */
PORT_DIPNAME(0x01, 0x01, "DIP 3 (Mode bit 2)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('@')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9))
PORT_START("COL8") /* KEYBOARD COLUMN 8 */
PORT_DIPNAME(0x01, 0x01, "DIP 2 (Mode bit 1)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("_ POUND") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('_') PORT_CHAR('\xa3')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\\') PORT_CHAR('|')
PORT_START("COL9") /* KEYBOARD COLUMN 9 */
PORT_DIPNAME(0x01, 0x01, "DIP 1 (Mode bit 0)")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x01, DEF_STR( On ))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DELETE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("COPY") PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(F11))
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
/* Keyboard columns 10 -> 15 are reserved for BBC Master */
PORT_START("COL10")
PORT_START("COL11")
PORT_START("COL12")
PORT_START("COL13")
PORT_START("COL14")
PORT_START("COL15")
PORT_START("IN0")
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_START("JOY0")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_MINMAX(0x0,0xff ) PORT_PLAYER(1)
PORT_START("JOY1")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_MINMAX(0x0,0xff ) PORT_PLAYER(1)
PORT_START("JOY2")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_MINMAX(0x0,0xff ) PORT_PLAYER(2)
PORT_START("JOY3")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_MINMAX(0x0,0xff ) PORT_PLAYER(2)
PORT_START("BBCCONFIG")
PORT_CONFNAME( 0x07, 0x00, "DFS SELECT" )
PORT_CONFSETTING( 0x00, "Acorn DFS 0.90 (read only)" )
PORT_CONFSETTING( 0x01, "Acorn DNFS 1.20 (read only)" )
PORT_CONFSETTING( 0x02, "Watford DFS 1.44 (read only)" )
PORT_CONFSETTING( 0x03, "Acorn DFS E00 (hack / read only)" )
PORT_CONFSETTING( 0x04, "Acorn DDFS" )
PORT_CONFSETTING( 0x05, "Watford DDFS (not working)" )
PORT_CONFSETTING( 0x06, "Opus Challenger 512K (ram drive only)" )
PORT_CONFSETTING( 0x07, DEF_STR( None ) )
PORT_CONFNAME( 0x18, 0x00, "Sideways RAM Type" )
PORT_CONFSETTING( 0x00, DEF_STR( None ) )
PORT_CONFSETTING( 0x08, "Solidisk 128K (fe62)" )
PORT_CONFSETTING( 0x10, "Acorn 64K (fe30)" )
PORT_CONFSETTING( 0x18, "Acorn 128K (fe30)" )
PORT_CONFNAME( 0x20, 0x20, "Main Ram Size" )
PORT_CONFSETTING( 0x00, "16K" )
PORT_CONFSETTING( 0x20, "32K" )
INPUT_PORTS_END
/* the BBC came with 4 rom sockets on the mother board as shown in the model A driver */
/* you could get a number of rom upgrade boards that took this up to 16 roms as in the */
/* model B driver */
ROM_START(bbca)
ROM_REGION(0x04000,"maincpu",ROMREGION_ERASEFF) /* RAM */
ROM_REGION(0x14000,"user1",0) /* ROM */
ROM_LOAD("os12.rom", 0x10000, 0x4000, CRC(3c14fc70) SHA1(0d9bcaf6a393c9ce2359ed700ddb53c232c2c45d))
/* rom page 0 00000 */
/* rom page 1 04000 */
/* rom page 2 08000 */
ROM_LOAD("basic2.rom", 0x0c000, 0x4000, CRC(79434781) SHA1(4a7393f3a45ea309f744441c16723e2ef447a281)) /* rom page 3 0c000 */
ROM_END
/* 0000- 7fff ram */
/* 8000- bfff not used, this area is mapped over with one of the roms at 10000 and above */
/* c000- ffff OS rom and memory mapped hardware at fc00-feff */
/* 10000-4ffff 16 paged rom banks mapped back into 8000-bfff by the page rom select */
ROM_START(bbcb)
ROM_REGION(0x08000,"maincpu",ROMREGION_ERASEFF) /* RAM */
ROM_REGION(0x44000,"user1",0) /* ROM */
ROM_LOAD("os12.rom", 0x40000,0x4000, CRC(3c14fc70) SHA1(0d9bcaf6a393c9ce2359ed700ddb53c232c2c45d))
// usos12.rom is the USA version of the OS. acorn tried to release the BBC B in the USA calling it the
// "Acorn Proton", it failed to sell in the USA and was withdrawn from the market.
// the main difference is the screen resolution setting the display to work on American TV's
//ROM_LOAD("usos12.rom", 0x40000,0x4000, CRC(c8e946a9) )
ROM_LOAD("basic2.rom", 0x00000, 0x4000, CRC(79434781) SHA1(4a7393f3a45ea309f744441c16723e2ef447a281)) /* rom page 15 3c000 */
//ROM_LOAD("speech-1.0.rom", 0x08000, 0x2000, CRC(e63f7fb7) )
//ROM_RELOAD( 0x0a000, 0x2000 )
//ROM_LOAD("dfs144.rom", 0x04000, 0x4000, CRC(9fb8d13f) SHA1(387d2468c6e1360f5b531784ce95d5f71a50c2b5)) /* rom page 14 38000 */
/* rom page 0 00000 */
/* rom page 1 04000 */
/* rom page 2 08000 */
/* rom page 3 0c000 */
/* rom page 4 10000 */
/* rom page 5 14000 */
/* rom page 6 18000 */
/* rom page 7 1c000 */
/* rom page 8 20000 */
/* rom page 9 24000 */
/* rom page 10 28000 */
/* rom page 11 2c000 */
/* rom page 12 30000 */
/* rom page 13 34000 */
ROM_REGION(0x20000,"user2",0) /* DFS ROMS */
ROM_LOAD("dfs09.rom", 0x00000, 0x2000, CRC(3ce609cf) SHA1(5cc0f14b8f46855c70eaa653cca4ad079b458732))
ROM_RELOAD( 0x02000, 0x2000 )
ROM_LOAD("dnfs.rom", 0x04000, 0x4000, CRC(8ccd2157) SHA1(7e3c536baeae84d6498a14e8405319e01ee78232))
ROM_LOAD("dfs144.rom", 0x08000, 0x4000, CRC(9fb8d13f) SHA1(387d2468c6e1360f5b531784ce95d5f71a50c2b5))
ROM_LOAD("zdfs-0.90.rom",0x0C000, 0x2000, CRC(ea579d4d) SHA1(59ad2a8994f4bddad6687891f1a2bc29f2fd32b8))
ROM_LOAD("ddfs223.rom", 0x10000, 0x4000, CRC(7891f9b7) SHA1(0d7ed0b0b3852cb61970ada1993244f2896896aa))
ROM_LOAD("ddfs-1.53.rom",0x14000, 0x4000, CRC(e1be4ee4) SHA1(6719dc958f2631e6dc8f045429797b289bfe649a))
ROM_LOAD("ch103.rom", 0x18000, 0x4000, CRC(98367cf4) SHA1(eca3631aa420691f96b72bfdf2e9c2b613e1bf33))
/*NONE*/
ROM_REGION(0x80000, "disks", ROMREGION_ERASEFF) /* Opus Ram Disc Space */
//ROM_REGION(0x2000, "torch", 0)
//ROM_LOAD("torchz80_094.bin", 0x0000, 0x2000, CRC(49989bd4) SHA1(62b57c858a3baa4ff943c31f77d331c414772a61))
//ROM_LOAD("torchz80_102.bin", 0x0000, 0x2000, CRC(2eb40a21) SHA1(e6ee738e5f2f8556002b79d18caa8ef21f14e08d))
ROM_END
#ifdef UNUSED_DEFINITION
ROM_START(bbcbcsw)
ROM_REGION(0x08000,"maincpu",ROMREGION_ERASEFF) /* RAM */
ROM_REGION(0x44000,"user1",0) /* ROM */
ROM_LOAD("os12.rom", 0x40000,0x4000, CRC(3c14fc70) SHA1(0d9bcaf6a393c9ce2359ed700ddb53c232c2c45d))
// usos12.rom is the USA version of the OS. acorn tried to release the BBC B in the USA calling it the
// "Acorn Proton", it failed to sell in the USA and was withdrawn from the market.
// the main difference is the screen resolution setting the display to work on American TV's
//ROM_LOAD("usos12.rom", 0x40000,0x4000, CRC(c8e946a9) )
ROM_LOAD("basic2.rom", 0x00000, 0x4000, CRC(79434781) SHA1(4a7393f3a45ea309f744441c16723e2ef447a281)) /* rom page 15 3c000 */
//ROM_LOAD("speech-1.0.rom", 0x08000, 0x2000, CRC(e63f7fb7) )
//ROM_RELOAD( 0x0a000, 0x2000 )
//ROM_LOAD("dfs144.rom", 0x04000, 0x4000, CRC(9fb8d13f) SHA1(387d2468c6e1360f5b531784ce95d5f71a50c2b5)) /* rom page 14 38000 */
/* rom page 0 00000 */
/* rom page 1 04000 */
/* rom page 2 08000 */
/* rom page 3 0c000 */
/* rom page 4 10000 */
/* rom page 5 14000 */
/* rom page 6 18000 */
/* rom page 7 1c000 */
/* rom page 8 20000 */
/* rom page 9 24000 */
/* rom page 10 28000 */
/* rom page 11 2c000 */
/* rom page 12 30000 */
/* rom page 13 34000 */
ROM_REGION(0x20000,"user2",0) /* DFS ROMS */
//ROM_LOAD("dfs09.rom", 0x00000, 0x2000, CRC(3ce609cf) SHA1(5cc0f14b8f46855c70eaa653cca4ad079b458732))
//ROM_RELOAD( 0x02000, 0x2000 )
//ROM_LOAD("dnfs.rom", 0x04000, 0x4000, CRC(8ccd2157) SHA1(7e3c536baeae84d6498a14e8405319e01ee78232))
ROM_LOAD("dfs144.rom", 0x08000, 0x4000, CRC(9fb8d13f) SHA1(387d2468c6e1360f5b531784ce95d5f71a50c2b5))
//ROM_LOAD("zdfs-0.90.rom",0x0C000, 0x2000, CRC(ea579d4d) SHA1(59ad2a8994f4bddad6687891f1a2bc29f2fd32b8))
//ROM_LOAD("ddfs223.rom", 0x10000, 0x4000, CRC(7891f9b7) SHA1(0d7ed0b0b3852cb61970ada1993244f2896896aa))
//ROM_LOAD("ddfs-1.53.rom",0x14000, 0x4000, CRC(e1be4ee4) SHA1(6719dc958f2631e6dc8f045429797b289bfe649a))
//ROM_LOAD("ch103.rom", 0x18000, 0x4000, CRC(98367cf4) SHA1(eca3631aa420691f96b72bfdf2e9c2b613e1bf33))
/*NONE*/
ROM_REGION(0x80000, "disks", ROMREGION_ERASEFF) /* Opus Ram Disc Space */
ROM_END
#endif
ROM_START(bbcbp)
ROM_REGION(0x10000,"maincpu",ROMREGION_ERASEFF) /* ROM MEMORY */
ROM_REGION(0x44000,"user1",0) /* ROM */
ROM_LOAD("bpos2.rom", 0x3c000, 0x4000, CRC(9f356396) SHA1(ea7d3a7e3ee1ecfaa1483af994048057362b01f2)) /* basic rom */
ROM_CONTINUE( 0x40000, 0x4000) /* OS */
/* rom page 0 00000 */
/* rom page 1 04000 */
/* rom page 2 08000 */
/* rom page 3 0c000 */
/* rom page 4 10000 */
/* rom page 5 14000 */
/* rom page 6 18000 */
/* rom page 7 1c000 */
/* rom page 8 20000 */
/* rom page 9 24000 */
/* rom page 10 28000 */
/* rom page 11 2c000 */
/* rom page 12 30000 */
/* rom page 13 34000 */
/* ddfs 2.23 this is acorns 1770 disc controller Double density disc filing system */
ROM_LOAD("ddfs223.rom", 0x38000, 0x4000, CRC(7891f9b7) SHA1(0d7ed0b0b3852cb61970ada1993244f2896896aa)) /* rom page 14 38000 */
ROM_END
ROM_START(bbcbp128)
ROM_REGION(0x10000,"maincpu",ROMREGION_ERASEFF) /* ROM MEMORY */
ROM_REGION(0x44000,"user1",0) /* ROM */
ROM_LOAD("bpos2.rom", 0x3c000, 0x4000, CRC(9f356396) SHA1(ea7d3a7e3ee1ecfaa1483af994048057362b01f2)) /* basic rom */
ROM_CONTINUE( 0x40000, 0x4000) /* OS */
/* rom page 0 00000 */
/* rom page 1 04000 */
/* rom page 2 08000 */
/* rom page 3 0c000 */
/* rom page 4 10000 */
/* rom page 5 14000 */
/* rom page 6 18000 */
/* rom page 7 1c000 */
/* rom page 8 20000 */
/* rom page 9 24000 */
/* rom page 10 28000 */
/* rom page 11 2c000 */
/* rom page 12 30000 */
/* rom page 13 34000 */
/* ddfs 2.23 this is acorns 1770 disc controller Double density disc filing system */
ROM_LOAD("ddfs223.rom", 0x38000, 0x4000, CRC(7891f9b7) SHA1(0d7ed0b0b3852cb61970ada1993244f2896896aa)) /* rom page 14 38000 */
ROM_END
/* BBC Master Rom Load */
ROM_START(bbcm)
ROM_REGION(0x10000,"maincpu",ROMREGION_ERASEFF) /* ROM MEMORY */
ROM_REGION(0x44000,"user1",0) /* ROM */
ROM_SYSTEM_BIOS( 0, "mos350", "Enhanced MOS 3.50" )
ROMX_LOAD("mos+3.50.rom",0x20000, 0x20000, CRC(141027b9) SHA1(85211b5bc7c7a269952d2b063b7ec0e1f0196803),ROM_BIOS(1))
ROM_SYSTEM_BIOS( 1, "mos320", "Original MOS 3.20" )
ROMX_LOAD("mos3.20.rom",0x20000, 0x20000, CRC(0cfad2ce) SHA1(0275719aa7746dd3b627f95ccc4362b564063a5e),ROM_BIOS(2))
/* Move loaded roms into place */
ROM_COPY("user1",0x20000,0x40000,0x4000)
ROM_FILL(0x20000,0x4000,0xFFFF)
/* 00000 rom 0 Cartridge */
/* 04000 rom 1 Cartridge */
/* 08000 rom 2 Cartridge */
/* 0c000 rom 3 Cartridge */
/* 10000 rom 4 RAM */
/* 14000 rom 5 RAM */
/* 18000 rom 6 RAM */
/* 1c000 rom 7 RAM */
/* 20000 rom 8 SPARE SOCKET */
/* 24000 rom 9 DFS */
/* 28000 rom 10 Viewsheet */
/* 2c000 rom 11 Edit */
/* 30000 rom 12 Basic */
/* 34000 rom 13 ADFS */
/* 38000 rom 14 View */
/* 3c000 rom 15 Terminal */
ROM_LOAD("anfs424.ic27", 0x20000, 0x4000, CRC(1b9f75fd) SHA1(875f71edd48f87c3a55371409d0cc2015d8b5853) ) // TODO where to load this?
ROM_END
INTERRUPT_GEN_MEMBER(bbc_state::bbcb_vsync)
{
via6522_device *via_0 = machine().device<via6522_device>("via6522_0");
via_0->write_ca1(1);
via_0->write_ca1(0);
}
//static const struct TMS5220interface tms5220_interface =
//{
// 680000L,
// 50,
// bbc_TMSint
//};
static const cassette_interface bbc_cassette_interface =
{
bbc_cassette_formats,
NULL,
(cassette_state)(CASSETTE_PLAY),
"bbc_cass",
NULL
};
WRITE_LINE_MEMBER(bbc_state::bbcb_ack_w)
{
via6522_device *via_1 = machine().device<via6522_device>("via6522_1");
via_1->write_ca1(!state); /* ack seems to be inverted? */
}
static const centronics_interface bbcb_centronics_config =
{
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbcb_ack_w),
DEVCB_NULL,
DEVCB_NULL
};
WRITE_LINE_MEMBER(bbc_state::bbcb_acia6850_irq_w)
{
m_acia_irq = state;
check_interrupts();
}
static ACIA6850_INTERFACE( bbc_acia6850_interface )
{
0,
0,
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbc_rxd_r),
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbc_txd_w),
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbc_cts_r),
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbc_rts_w),
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbc_dcd_r),
DEVCB_DRIVER_LINE_MEMBER(bbc_state,bbcb_acia6850_irq_w)
};
static LEGACY_FLOPPY_OPTIONS_START(bbc)
LEGACY_FLOPPY_OPTION(bbc, "ssd,bbc,img", "BBC disk image", basicdsk_identify_default, basicdsk_construct_default, NULL,
HEADS([1])
TRACKS([80])
SECTORS([10])
SECTOR_LENGTH([256])
FIRST_SECTOR_ID([0]))
LEGACY_FLOPPY_OPTIONS_END
static const floppy_interface bbc_floppy_interface =
{
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
FLOPPY_STANDARD_5_25_DSHD,
LEGACY_FLOPPY_OPTIONS_NAME(bbc),
NULL,
NULL
};
static SAA5050_INTERFACE( trom_intf )
{
DEVCB_NULL,
40, 24, 40 // x, y, size
};
static const mc6854_interface adlc_intf =
{
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(ECONET_TAG, econet_device, data_r),
DEVCB_DEVICE_LINE_MEMBER(ECONET_TAG, econet_device, data_w),
NULL,
DEVCB_NULL,
DEVCB_NULL
};
//-------------------------------------------------
// sn76496_config psg_intf
//-------------------------------------------------
static const sn76496_config psg_intf =
{
DEVCB_NULL
};
WRITE_LINE_MEMBER(bbc_state::econet_clk_w)
{
device_t *device = machine().device("mc6854");
mc6854_rxc_w(device, state);
mc6854_txc_w(device, state);
}
static ECONET_INTERFACE( econet_intf )
{
DEVCB_DRIVER_LINE_MEMBER(bbc_state,econet_clk_w),
DEVCB_NULL
};
static const rs232_port_interface rs232_intf =
{
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};
static MACHINE_CONFIG_FRAGMENT( bbc_cartslot )
MCFG_CARTSLOT_ADD("cart1")
MCFG_CARTSLOT_EXTENSION_LIST("rom")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_LOAD(bbc_state, bbcb_cart)
MCFG_CARTSLOT_ADD("cart2")
MCFG_CARTSLOT_EXTENSION_LIST("rom")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_LOAD(bbc_state, bbcb_cart)
MCFG_CARTSLOT_ADD("cart3")
MCFG_CARTSLOT_EXTENSION_LIST("rom")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_LOAD(bbc_state, bbcb_cart)
MCFG_CARTSLOT_ADD("cart4")
MCFG_CARTSLOT_EXTENSION_LIST("rom")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_LOAD(bbc_state, bbcb_cart)
MACHINE_CONFIG_END
static MACHINE_CONFIG_START( bbca, bbc_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502, 2000000) /* 2.00 MHz */
MCFG_CPU_PROGRAM_MAP( bbca_mem)
MCFG_CPU_VBLANK_INT_DRIVER("screen", bbc_state, bbcb_vsync) /* screen refresh interrupts */
MCFG_CPU_PERIODIC_INT_DRIVER(bbc_state, bbcb_keyscan, 1000) /* scan keyboard */
MCFG_QUANTUM_TIME(attotime::from_hz(60))
MCFG_MACHINE_START_OVERRIDE(bbc_state, bbca )
MCFG_MACHINE_RESET_OVERRIDE(bbc_state, bbca )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(128))
MCFG_SCREEN_UPDATE_DEVICE("mc6845", mc6845_device, screen_update)
MCFG_PALETTE_LENGTH(16)
MCFG_PALETTE_INIT_OVERRIDE(bbc_state,bbc)
MCFG_SAA5050_ADD("saa505x", XTAL_12MHz/2, trom_intf)
MCFG_MC6845_ADD("mc6845",MC6845,"screen",2000000, bbc_mc6845_intf)
MCFG_VIDEO_START_OVERRIDE(bbc_state,bbca)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("sn76489", SN76489, 4000000) /* 4 MHz */
MCFG_SOUND_CONFIG(psg_intf)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
// MCFG_SOUND_ADD("tms5220", TMS5220, tms5220_interface)
/* cassette */
MCFG_CASSETTE_ADD( "cassette", bbc_cassette_interface )
/* software list */
MCFG_SOFTWARE_LIST_ADD("cass_ls_a","bbca_cass")
/* acia */
MCFG_ACIA6850_ADD("acia6850", bbc_acia6850_interface)
MCFG_RS232_PORT_ADD(RS232_TAG, rs232_intf, default_rs232_devices, NULL)
/* devices */
MCFG_VIA6522_ADD("via6522_0", 1000000, bbcb_system_via)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( bbcb, bbca )
MCFG_CPU_MODIFY( "maincpu" )
MCFG_CPU_PROGRAM_MAP( bbcb_mem)
MCFG_MACHINE_START_OVERRIDE(bbc_state, bbcb )
MCFG_MACHINE_RESET_OVERRIDE(bbc_state, bbcb )
MCFG_VIDEO_START_OVERRIDE(bbc_state, bbcb )
/* devices */
MCFG_UPD7002_ADD("upd7002", bbc_uPD7002)
MCFG_VIA6522_ADD("via6522_1", 1000000, bbcb_user_via)
MCFG_CENTRONICS_PRINTER_ADD("centronics", bbcb_centronics_config)
MCFG_I8271_ADD("i8271", bbc_i8271_interface)
MCFG_WD1770_ADD("wd177x", bbc_wd17xx_interface )
MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(bbc_floppy_interface)
MCFG_FRAGMENT_ADD(bbc_cartslot)
/* software list */
MCFG_DEVICE_REMOVE("cass_ls_a")
MCFG_SOFTWARE_LIST_ADD("cass_ls_b","bbcb_cass")
MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("cass_ls_a","bbca_cass")
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( bbcbp, bbcb )
MCFG_CPU_MODIFY( "maincpu" )
MCFG_CPU_PROGRAM_MAP( bbcbp_mem)
MCFG_MACHINE_START_OVERRIDE(bbc_state, bbcbp )
MCFG_MACHINE_RESET_OVERRIDE(bbc_state, bbcbp )
MCFG_VIDEO_START_OVERRIDE(bbc_state, bbcbp )
MCFG_DEVICE_REMOVE("i8271")
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( bbcbp128, bbcbp )
MCFG_CPU_MODIFY( "maincpu" )
MCFG_CPU_PROGRAM_MAP( bbcbp128_mem)
MCFG_MACHINE_START_OVERRIDE(bbc_state, bbcbp )
MCFG_MACHINE_RESET_OVERRIDE(bbc_state, bbcbp )
MCFG_VIDEO_START_OVERRIDE(bbc_state, bbcbp )
MACHINE_CONFIG_END
/* BBC MASTER */
static MACHINE_CONFIG_START( bbcm, bbc_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M65SC02, 2000000) /* 2.00 MHz */
MCFG_CPU_PROGRAM_MAP( bbcm_mem)
MCFG_CPU_VBLANK_INT_DRIVER("screen", bbc_state, bbcb_vsync) /* screen refresh interrupts */
MCFG_CPU_PERIODIC_INT_DRIVER(bbc_state, bbcm_keyscan, 1000) /* scan keyboard */
MCFG_QUANTUM_TIME(attotime::from_hz(60))
MCFG_MACHINE_START_OVERRIDE(bbc_state, bbcm )
MCFG_MACHINE_RESET_OVERRIDE(bbc_state, bbcm )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(128))
MCFG_SCREEN_SIZE(800,300)
MCFG_SCREEN_VISIBLE_AREA(0,800-1,0,300-1)
MCFG_PALETTE_LENGTH(16)
MCFG_PALETTE_INIT_OVERRIDE(bbc_state,bbc)
MCFG_SCREEN_UPDATE_DEVICE("mc6845", mc6845_device, screen_update)
MCFG_SAA5050_ADD("saa505x", XTAL_12MHz/2, trom_intf)
MCFG_MC6845_ADD("mc6845",MC6845,"screen",2000000, bbc_mc6845_intf)
MCFG_VIDEO_START_OVERRIDE(bbc_state,bbcm)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("sn76489", SN76489, 4000000) /* 4 MHz */
MCFG_SOUND_CONFIG(psg_intf)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MCFG_MC146818_ADD( "rtc", MC146818_STANDARD )
/* printer */
MCFG_CENTRONICS_PRINTER_ADD("centronics", bbcb_centronics_config)
/* cassette */
MCFG_CASSETTE_ADD( "cassette", bbc_cassette_interface )
/* software list */
MCFG_SOFTWARE_LIST_ADD("cass_ls_m","bbcm_cass")
MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("cass_ls_a","bbca_cass")
MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("cass_ls_b","bbcb_cass")
/* acia */
MCFG_ACIA6850_ADD("acia6850", bbc_acia6850_interface)
MCFG_RS232_PORT_ADD(RS232_TAG, rs232_intf, default_rs232_devices, NULL)
/* devices */
MCFG_UPD7002_ADD("upd7002", bbc_uPD7002)
MCFG_VIA6522_ADD("via6522_0", 1000000, bbcb_system_via)
MCFG_VIA6522_ADD("via6522_1", 1000000, bbcb_user_via)
MCFG_WD1770_ADD("wd177x", bbc_wd17xx_interface )
MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(bbc_floppy_interface)
MCFG_FRAGMENT_ADD(bbc_cartslot)
MCFG_MC6854_ADD("mc6854", adlc_intf)
MCFG_ECONET_ADD(econet_intf)
MCFG_ECONET_SLOT_ADD("econet254", 254, econet_devices, NULL)
MACHINE_CONFIG_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */
COMP ( 1981, bbca, 0, 0, bbca, bbca, bbc_state, bbc, "Acorn","BBC Micro Model A" , 0)
COMP ( 1981, bbcb, bbca, 0, bbcb, bbca, bbc_state, bbc, "Acorn","BBC Micro Model B" , 0)
COMP ( 1985, bbcbp, bbca, 0, bbcbp, bbca, bbc_state, bbc, "Acorn","BBC Micro Model B+ 64K" , 0)
COMP ( 1985, bbcbp128, bbca, 0, bbcbp128, bbca, bbc_state, bbc, "Acorn","BBC Micro Model B+ 128k" , 0)
COMP ( 1986, bbcm, bbca, 0, bbcm, bbca, bbc_state, bbcm, "Acorn","BBC Master" , 0)
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