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-// license:BSD-3-Clause
-// copyright-holders:Joakim Larsson Edstrom
-/***************************************************************************
- *
- * Force SYS68K CPU-1/CPU-6 VME SBC drivers, initially based on the 68ksbc.c
- *
- * 13/06/2015
- *
- * The info found on the links below is for a later revisions of the board I have
- * but it is somewhat compatible so I got the system ROM up and running in terminal.
- * My CPU-1 board has proms from 1983 and the PCB has no rev markings so probably
- * the original or a very early design. The board real estate differs from the later
- * CPU-1:s I found pictures of but has the same main chips and functions.
- *
- * http://bitsavers.trailing-edge.com/pdf/forceComputers/1988_Force_VMEbus_Products.pdf
- * http://www.artisantg.com/info/P_wUovN.pdf
- *
- * Some info from those documents:
- *
- * Address Map
- * ----------------------------------------------------------
- * Address Range Description
- * ----------------------------------------------------------
- * 000 000 - 000 007 Initialisation vectors from system EPROM
- * 000 008 - 01F FFF Dynamic RAM on CPU-1 B
- * 000 008 - 07F FFF Dynamic RAM on CPU-1 D
- * 080 008 - 09F FFF SYSTEM EPROM Area
- * OAO 000 - OBF FFF USER EPROMArea
- * 0C0 041 - 0C0 043 ACIA (P3) Host
- * 0C0 080 - 0C0 082 ACIA (P4) Terminal
- * 0C0 101 - 0C0 103 ACIA (P5) Remote device (eg serial printer)
- * 0C0 401 - 0C0 42F RTC
- * OEO 001 - 0E0 035 PI/T (eg centronics printer)
- * OEO 200 - 0E0 2FF FPU
- * OEO 300 - 0E0 300 Reset Off
- * OEO 380 - 0E0 380 Reset On
- * 100 000 - FEF FFF VMEbus addresses (A24)
- * FFO 000 - FFF FFF VMEbus Short I/O (A16)
- * ----------------------------------------------------------
- *
- * Interrupt sources
- * ----------------------------------------------------------
- * Description Device Lvl IRQ VME board
- * /Board Vector Address
- * ----------------------------------------------------------
- * On board Sources
- * ABORT Switch 7 31
- * Real Time Clock (RTC) 58167A 6 30
- * Parallel/Timer (PI/T) 68230 5 29
- * Terminal ACIA 6850 4 28
- * Remote ACIA 6850 3 27
- * Host ACIA 6850 2 26
- * ACFAIL, SYSFAIL VME 5 29
- * Off board Sources (other VME boards)
- * 6 Port Serial I/O board SIO 4 64-75 0xb00000
- * 8 Port Serial I/O board ISIO 4 76-83 0x960000
- * Disk Controller WFC 3 119 0xb01000
- * SCSI Controller ISCSI 4 119 0xa00000
- * Slot 1 Controller Board ASCU 7 31 0xb02000
- * ----------------------------------------------------------
- *
- * TODO:
- * - Add internal layout with switches and leds
- *
- ****************************************************************************/
-
-#include "emu.h"
-#include "bus/rs232/rs232.h"
-#include "cpu/m68000/m68000.h"
-#include "machine/mm58167.h"
-#include "machine/68230pit.h"
-#include "machine/6850acia.h"
-#include "machine/mc14411.h"
-#include "machine/clock.h"
-#include "bus/centronics/ctronics.h"
-#include "bus/generic/slot.h"
-#include "bus/generic/carts.h"
-#include "softlist.h"
-#include "bus/vme/vme.h"
-#include "bus/vme/vme_fcisio.h"
-#include "bus/vme/vme_fcscsi.h"
-
-#include "fccpu1.lh"
-
-/*
- * The baudrate on the Force68k CPU-1 to CPU-6 is generated by a Motorola 14411 bitrate generator
- * The CPU-6 documents matches the circuits that I could find on the CPU-1 board.
- *
- * From the documents:
- *
- * 3 RS232C interfaces, strap selectable baud rate from 110-9600 or 600-19200 baud (CPU-1B datasheet)
- * or
- * 3 RS232C interfaces, strap selectable baud rate from 60-9600 or 240-38400 baud (CPU-6 Users manual)
- *
- * Default Jumper Settings of B7:
- * --------------------------------
- * GND 10 - 11 RSA input on 14411
- * F1 on 14411 1 - 20 Baud selector of the terminal port
- * F1 on 14411 3 - 18 Baud selector of the host port
- * F1 on 14411 5 - 16 Baud selector of the remote port
- *
- * The RSB input on the 14411 is kept high always so RSA=0, RSB=1 and a 1.8432MHz crystal
- * generates 153600 on the F1 output pin which by default strapping is connected to all
- * three 6850 acias on the board. These can be strapped separatelly to speedup downloads.
- *
- * The selectable outputs from 14411, F1-F16:
- * X16 RSA=0,RSB=1: 153600, 115200, 76800, 57600, 38400, 28800, 19200, 9600, 4800, 3200, 2153.3, 1758.8, 1200, 921600, 1843000
- * X64 RSA=1,RSB=1: 614400, 460800, 307200, 230400, 153600, 115200, 76800, 57600, 38400, 28800, 19200, 9600, 4800, 921600, 1843000
- *
- * However, the datasheet says baudrate is strapable for 110-9600 but the output is 153600
- * so the system rom MUST setup the acia to divide by 16 to generate the correct baudrate.
- *
- * There are multiple ways to achieve some of the baud rates and we have only seen a CPU-6 users manual so
- * emulation mimics a CPU-6 board at the moment until further information has been gathered.
- */
-
-//**************************************************************************
-// CONFIGURABLE LOGGING
-//**************************************************************************
-//#define LOG_GENERAL (1U << 0) // defined in logmacro.h
-#define LOG_SETUP (1U << 1)
-
-//#define VERBOSE (LOG_GENERAL | LOG_SETUP)
-//#define LOG_OUTPUT_FUNC printf
-#include "logmacro.h"
-
-// #define LOG(...) LOGMASKED(LOG_SETUP, __VA_ARGS__) // defined in logmacro.h
-#define LOGSETUP(...) LOGMASKED(LOG_SETUP, __VA_ARGS__)
-
-//**************************************************************************
-// MACROS / CONSTANTS
-//**************************************************************************
-
-#ifdef _MSC_VER
-#define FUNCNAME __func__
-#else
-#define FUNCNAME __PRETTY_FUNCTION__
-#endif
-
-class force68k_state : public driver_device
-{
-public:
- force68k_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_rtc(*this, "rtc")
- , m_pit(*this, "pit")
- , m_brg(*this, "brg")
- , m_aciahost(*this, "aciahost")
- , m_aciaterm(*this, "aciaterm")
- , m_aciaremt(*this, "aciaremt")
- , m_centronics(*this, "centronics")
- , m_centronics_ack(0)
- , m_centronics_busy(0)
- , m_centronics_perror(0)
- , m_centronics_select(0)
- , m_serial_brf(*this, "SERIAL_BRF")
- , m_serial_p3(*this, "SERIAL_P3")
- , m_serial_p4(*this, "SERIAL_P4")
- , m_serial_p5(*this, "SERIAL_P5")
- , m_cart(*this, "exp_rom1")
- {
- }
-
- void fccpu1_eprom_sockets(machine_config &config);
- void fccpu1(machine_config &config);
-
-private:
- DECLARE_READ16_MEMBER (bootvect_r);
- DECLARE_READ16_MEMBER (vme_a24_r);
- DECLARE_WRITE16_MEMBER (vme_a24_w);
- DECLARE_READ16_MEMBER (vme_a16_r);
- DECLARE_WRITE16_MEMBER (vme_a16_w);
- virtual void machine_start () override;
- virtual void machine_reset () override;
-
- // Clocks
- void write_acia_clocks(int id, int state);
- DECLARE_WRITE_LINE_MEMBER (write_f1_clock){ write_acia_clocks(mc14411_device::TIMER_F1, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f3_clock){ write_acia_clocks(mc14411_device::TIMER_F3, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f5_clock){ write_acia_clocks(mc14411_device::TIMER_F5, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f7_clock){ write_acia_clocks(mc14411_device::TIMER_F7, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f8_clock){ write_acia_clocks(mc14411_device::TIMER_F8, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f9_clock){ write_acia_clocks(mc14411_device::TIMER_F9, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f11_clock){ write_acia_clocks(mc14411_device::TIMER_F11, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f13_clock){ write_acia_clocks(mc14411_device::TIMER_F13, state); }
- DECLARE_WRITE_LINE_MEMBER (write_f15_clock){ write_acia_clocks(mc14411_device::TIMER_F15, state); }
-
- // Centronics printer interface
- DECLARE_WRITE_LINE_MEMBER (centronics_ack_w);
- DECLARE_WRITE_LINE_MEMBER (centronics_busy_w);
- DECLARE_WRITE_LINE_MEMBER (centronics_perror_w);
- DECLARE_WRITE_LINE_MEMBER (centronics_select_w);
-
- // User EPROM/SRAM slot(s)
- image_init_result force68k_load_cart(device_image_interface &image, generic_slot_device *slot);
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER (exp1_load) { return force68k_load_cart(image, m_cart); }
- DECLARE_READ16_MEMBER (read16_rom);
-
- void force68k_mem(address_map &map);
-
- required_device<cpu_device> m_maincpu;
- required_device<mm58167_device> m_rtc;
- required_device<pit68230_device> m_pit;
- required_device<mc14411_device> m_brg;
- required_device<acia6850_device> m_aciahost;
- required_device<acia6850_device> m_aciaterm;
- required_device<acia6850_device> m_aciaremt;
- optional_device<centronics_device> m_centronics;
-
- int32_t m_centronics_ack;
- int32_t m_centronics_busy;
- int32_t m_centronics_perror;
- int32_t m_centronics_select;
-
- // fake inputs for hardware configuration and things that need rewiring
- required_ioport m_serial_brf;
- required_ioport m_serial_p3;
- required_ioport m_serial_p4;
- required_ioport m_serial_p5;
-
- // Pointer to System ROMs needed by bootvect_r
- uint16_t *m_sysrom;
- uint16_t *m_usrrom;
-
- required_device<generic_slot_device> m_cart;
-};
-
-void force68k_state::force68k_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x000000, 0x000007).rom().r(FUNC(force68k_state::bootvect_r)); /* Vectors mapped from System EPROM */
- map(0x000008, 0x01ffff).ram(); /* DRAM CPU-1B */
-// map(0x020000, 0x07ffff).ram(); /* Additional DRAM CPU-1D */
- map(0x080000, 0x083fff).rom(); /* System EPROM Area 16Kb DEBUGGER supplied as default on CPU-1B/D */
- map(0x084000, 0x09ffff).rom(); /* System EPROM Area 112Kb additional space for System ROM */
-// map(0x0a0000, 0x0bffff).rom(); /* User EPROM/SRAM Area, max 128Kb mapped by a cartslot */
- map(0x0c0040, 0x0c0043).rw(m_aciahost, FUNC(acia6850_device::read), FUNC(acia6850_device::write)).umask16(0x00ff);
- map(0x0c0080, 0x0c0083).rw(m_aciaterm, FUNC(acia6850_device::read), FUNC(acia6850_device::write)).umask16(0xff00);
- map(0x0c0100, 0x0c0103).rw(m_aciaremt, FUNC(acia6850_device::read), FUNC(acia6850_device::write)).umask16(0x00ff);
- map(0x0c0400, 0x0c042f).rw(m_rtc, FUNC(mm58167_device::read), FUNC(mm58167_device::write)).umask16(0x00ff);
- map(0x0e0000, 0x0e0035).rw(m_pit, FUNC(pit68230_device::read), FUNC(pit68230_device::write)).umask16(0x00ff);
-// map(0x0e0200, 0x0e0380).rw(FUNC(force68k_state::fpu_r), FUNC(force68k_state::fpu_w)); /* optional FPCP 68881 FPU interface */
- map(0x100000, 0xfeffff).rw(FUNC(force68k_state::vme_a24_r), FUNC(force68k_state::vme_a24_w)); /* VMEbus Rev B addresses (24 bits) */
- map(0xff0000, 0xffffff).rw(FUNC(force68k_state::vme_a16_r), FUNC(force68k_state::vme_a16_w)); /* VMEbus Rev B addresses (16 bits) */
-}
-
-/* Input ports */
-static INPUT_PORTS_START (force68k)
-
- PORT_START("SERIAL_BRF")
- PORT_CONFNAME(0x80 , 0x00 , "Baud Rate Factor") // RSA pin on MC14411
- PORT_CONFSETTING(0x00, "1x (Lo)")
- PORT_CONFSETTING(0x80, "4x (Hi)")
-
- PORT_START("SERIAL_P3")
- PORT_CONFNAME(0x0F , 0x00 , "P3 Host Baud Lo/Hi") // F1-Fx pins on MC14411
- PORT_CONFSETTING(mc14411_device::TIMER_F1, "9600/38400") // RSA=1x/16x
- PORT_CONFSETTING(mc14411_device::TIMER_F3, "4800/19200")
- PORT_CONFSETTING(mc14411_device::TIMER_F5, "2400/9600")
- PORT_CONFSETTING(mc14411_device::TIMER_F7, "1200/4800")
- PORT_CONFSETTING(mc14411_device::TIMER_F8, "600/2400")
- PORT_CONFSETTING(mc14411_device::TIMER_F9, "300/1200")
- PORT_CONFSETTING(mc14411_device::TIMER_F11, "150/600")
- PORT_CONFSETTING(mc14411_device::TIMER_F13, "110/440")
- PORT_CONFSETTING(mc14411_device::TIMER_F15, "60/240")
-
- PORT_START("SERIAL_P4")
- PORT_CONFNAME(0x0F , 0x00 , "P4 Terminal Baud Lo/Hi") // F1-Fx pins on MC14411
- PORT_CONFSETTING(mc14411_device::TIMER_F1, "9600/38400") // RSA=1x/16x
- PORT_CONFSETTING(mc14411_device::TIMER_F3, "4800/19200")
- PORT_CONFSETTING(mc14411_device::TIMER_F5, "2400/9600")
- PORT_CONFSETTING(mc14411_device::TIMER_F7, "1200/4800")
- PORT_CONFSETTING(mc14411_device::TIMER_F8, "600/2400")
- PORT_CONFSETTING(mc14411_device::TIMER_F9, "300/1200")
- PORT_CONFSETTING(mc14411_device::TIMER_F11, "150/600")
- PORT_CONFSETTING(mc14411_device::TIMER_F13, "110/440")
- PORT_CONFSETTING(mc14411_device::TIMER_F15, "60/240")
-
- PORT_START("SERIAL_P5")
- PORT_CONFNAME(0x0F , 0x00 , "P5 Remote Baud Lo/Hi") // F1-Fx pins on MC14411
- PORT_CONFSETTING(mc14411_device::TIMER_F1, "9600/38400") // RSA=1x/16x
- PORT_CONFSETTING(mc14411_device::TIMER_F3, "4800/19200")
- PORT_CONFSETTING(mc14411_device::TIMER_F5, "2400/9600")
- PORT_CONFSETTING(mc14411_device::TIMER_F7, "1200/4800")
- PORT_CONFSETTING(mc14411_device::TIMER_F8, "600/2400")
- PORT_CONFSETTING(mc14411_device::TIMER_F9, "300/1200")
- PORT_CONFSETTING(mc14411_device::TIMER_F11, "150/600")
- PORT_CONFSETTING(mc14411_device::TIMER_F13, "110/440")
- PORT_CONFSETTING(mc14411_device::TIMER_F15, "60/240")
-
-INPUT_PORTS_END
-
-/*
- * Centronics support
- *
- * The system ROMs has support for a parallel printer interface but the signals are just routed to row A
- * of the VME P2 connector so no on board Centronics connector is available but assumed to be added on a
- * separate I/O board. After some detective work I found that the ROM works as follows:
- *
- * The 'PA' (Printer Attach) command issues a <cr> on Port A and sends a strobe on H2 it then loops over
- * the select signal, bit 0 on Port B, and the ack signal on HS1, both to be non zero. The support is really
- * flawed as the strobe signal goes high instead of low ( this might assume an inverting driver on the
- * P2 board ) and the busy signal is not checked at all. Or I might have assumed it all wrong, but it now
- * works with the generic centronics printer driver. Need the printer board documentation to improve further.
- *
- * When the 'PA' command is successful everything printed to screen is mirrored on the printer. Use the
- * 'NOPA' command to stop mirroring. I had no printer ROMs so could not test it with a "real" printer.
- *
- * Force CPU-1 init sequence for MC68230 PIT
- * -----------------------------------------
- * 0801E6 0E0000 W 00 -> PGCR Mode 0 (uni8), H34 dis, H12 dis, H1234 HZ
- * 0801E6 0E0002 W 00 -> PSRR PC4, PC5, H1S>H2S>H3S>H4S
- * 0801E6 0E0004 W FF -> PADDR Port A all Outputs
- * 0801E6 0E0006 W 00 -> PBDDR Port B all Inputs
- * 0801EA 0E000C W 60 -> PACR Port A Mode 01, pin def, dbfr H1 data rec, H2 status/int, H2 output neg, H2S clrd
- * 0801F0 0E000E W A0 -> PBCR Port B mode 1x, H4 output neg, H4S clrd, H3 int dis, H3 edg input, H3S set by assrt edg
- * 0801F6 0E0000 W 30 -> PGCR H34 enable, H12enable
- * 0801FC 0E000E W A8 -> PBCR +H4 asserted
- * 08020A 0E000E W A0 -> PBCR +H4 negated
- *
- * Upon PA (Printer Attach) command enabling the Centronics printer mode
- * ---------------------------------------------------------------------
- * 081DB4 0E0011 W D0 -> PADR Data to Port A
- * 081DB8 0E000D W 68 -> PACR H2 output asserted Centronics Strobe
- * 081DC0 0E000D W 60 -> PACR H2 output negated
- * 081DD0 0E0013 R 00 <- PBDR Port B polled for 01 (data) & 03 (mask)
- *
- */
-
-/* Centronics ACK handler
- * The centronics ack signal is expected by the ROM to arrive at H1 input line
- */
-WRITE_LINE_MEMBER (force68k_state::centronics_ack_w)
-{
- LOG("%s(%d)\n", FUNCNAME, state);
- m_centronics_ack = state;
- m_pit->h1_set (state);
-}
-
-/* Centronics BUSY handler
- * The centronics busy signal is not used by the ROM driver afaik
- */
-WRITE_LINE_MEMBER (force68k_state::centronics_busy_w){
- LOG("%s(%d)\n", FUNCNAME, state);
- m_centronics_busy = state;
-}
-
-/* Centronics PERROR handler
- * The centronics perror signal is not used by the ROM driver afaik
- */
-WRITE_LINE_MEMBER (force68k_state::centronics_perror_w){
- LOG("%s(%d)\n", FUNCNAME, state);
- m_centronics_perror = state;
-}
-
-/* Centronics SELECT handler
- * The centronics select signal is expected by the ROM on Port B bit 0
- */
-WRITE_LINE_MEMBER (force68k_state::centronics_select_w){
- LOG("%s(%d)\n", FUNCNAME, state);
- m_centronics_select = state;
- m_pit->portb_setbit (0, state);
-}
-
-/* Start it up */
-void force68k_state::machine_start ()
-{
- LOG("%s\n", FUNCNAME);
-
- save_item (NAME (m_centronics_busy));
- save_item (NAME (m_centronics_ack));
- save_item (NAME (m_centronics_select));
- save_item (NAME (m_centronics_perror));
-
- /* Setup pointer to bootvector in ROM for bootvector handler bootvect_r */
- m_sysrom = (uint16_t*)(memregion ("maincpu")->base () + 0x080000);
-
- /* Map user ROM/RAM socket(s) */
- if (m_cart->exists())
- {
- m_usrrom = (uint16_t*)m_cart->get_rom_base();
-#if 0 // This should be the correct way but produces odd and even bytes swapped
- m_maincpu->space(AS_PROGRAM).install_read_handler(0xa0000, 0xbffff, read16_delegate(*m_cart, FUNC(generic_slot_device::read16_rom)));
-#else // So we installs a custom very ineffecient handler for now until we understand hwp to solve the problem better
- m_maincpu->space(AS_PROGRAM).install_read_handler(0xa0000, 0xbffff, read16_delegate(*this, FUNC(force68k_state::read16_rom)));
-#endif
- }
-}
-
-/* Reset it */
-void force68k_state::machine_reset ()
-{
- LOG("%s\n", FUNCNAME);
-
- // Set up the BRG divider. RSA is a jumper setting and RSB is always set High
- m_brg->rsa_w( m_serial_brf->read() == 0x80 ? ASSERT_LINE : CLEAR_LINE );
- m_brg->rsb_w( ASSERT_LINE);
-
- // Disable all configured timers, only enabling the used ones
- m_brg->timer_disable_all();
- m_brg->timer_enable((mc14411_device::timer_id) m_serial_p3->read(), true);
- m_brg->timer_enable((mc14411_device::timer_id) m_serial_p4->read(), true);
- m_brg->timer_enable((mc14411_device::timer_id) m_serial_p5->read(), true);
-}
-
-/* A very ineffecient User cart emulation of two 8 bit sockets (odd and even) */
-READ16_MEMBER (force68k_state::read16_rom){
- offset = offset % m_cart->common_get_size("rom"); // Don't read outside buffer...
- return ((m_usrrom [offset] << 8) & 0xff00) | ((m_usrrom [offset] >> 8) & 0x00ff);
-}
-
-/* Boot vector handler, the PCB hardwires the first 8 bytes from 0x80000 to 0x0 */
-READ16_MEMBER (force68k_state::bootvect_r){
- return m_sysrom [offset];
-}
-
-/* 10. The VMEbus (text from board documentation)
- * ---------------
- * The implemented VMEbus Interface includes 24 address, 16 data,
- * 6 address modifier and the asynchronous control signals.
- * A single level bus arbiter is provided to build multi master
- * systems. In addition to the bus arbiter, a separate slave bus
- * arbitration allows selection of the arbitration level (0-3).
- *
- * The address modifier range .,Short 110 Access can be selected
- * via a jumper for variable system generation. The 7 interrupt
- * request levels of the VMEbus are fully supported from the
- * SYS68K1CPU-1 B/D. For multi-processing, each IRQ signal can be
- * enabled/disabled via a jumper field.
- *
- * Additionally, the SYS68K1CPU-1 B/D supports the ACFAIL, SYSRESET,
- * SYSFAIL and SYSCLK signal (16 MHz).
- */
-
-/* Dummy VME access methods until the VME bus device is ready for use */
-READ16_MEMBER (force68k_state::vme_a24_r)
-{
- LOG("%s\n", FUNCNAME);
- return (uint16_t) 0;
-}
-
-WRITE16_MEMBER (force68k_state::vme_a24_w)
-{
- LOG("%s\n", FUNCNAME);
-}
-
-READ16_MEMBER (force68k_state::vme_a16_r)
-{
- LOG("%s\n", FUNCNAME);
- return (uint16_t) 0;
-}
-
-WRITE16_MEMBER (force68k_state::vme_a16_w)
-{
- LOG("%s\n", FUNCNAME);
-}
-
-/*
- * Serial port clock sources can all be driven by different or the same output(s) of the MC14411
- */
-void force68k_state::write_acia_clocks(int id, int state)
-{
- if (id == m_serial_p3->read())
- {
- m_aciahost->write_txc(state);
- m_aciahost->write_rxc(state);
- }
- if (id == m_serial_p4->read())
- {
- m_aciaterm->write_txc(state);
- m_aciaterm->write_rxc(state);
- }
- if (id == m_serial_p5->read())
- {
- m_aciaremt->write_txc(state);
- m_aciaremt->write_rxc(state);
- }
-}
-
-/*
- * 4. The USER Area (Text from the board manual)
- The USER area contains two 28 pin sockets with JEDEC compatible pin out.
- To allow the usage of static RAM's, the access to the USER area is byte
- oriented. Table 3. lists the usable device types.
-
- Bits Bytes EPROM SRAM
- --------------------------
- 2Kx16 4 Kbyte 2716 6116
- 4Kx16 8 Kbyte 2732
- 8Kx16 16 Kbyte 2764 6264
- 16Kx16 32 Kbyte 27128
- 32Kx16 64 Kbyte 27256
- --------------------------
-*/
-// Implementation of static 2 x 64K EPROM in sockets J10/J11 as 16 bit wide cartridge for easier
-// software handling. TODO: make configurable according to table above.
-void force68k_state::fccpu1_eprom_sockets(machine_config &config)
-{
- generic_cartslot_device &exp_rom1(GENERIC_CARTSLOT(config, "exp_rom1", generic_plain_slot, "fccpu1_cart", "bin,rom"));
- exp_rom1.set_width(GENERIC_ROM16_WIDTH);
- exp_rom1.set_endian(ENDIANNESS_BIG);
- exp_rom1.set_device_load(FUNC(force68k_state::exp1_load));
-// SOFTWARE_LIST(config, "cart_list").set_original("fccpu1_cart");
-}
-
-/***************************
- Rom loading functions
-****************************/
-image_init_result force68k_state::force68k_load_cart(device_image_interface &image, generic_slot_device *slot)
-{
- uint32_t size = slot->common_get_size("rom");
-
- if (size > 0x20000) // Max 128Kb
- {
- LOG("Cartridge size exceeding max size (128Kb): %d\n", size);
- image.seterror(IMAGE_ERROR_UNSPECIFIED, "Cartridge size exceeding max size (128Kb)");
- return image_init_result::FAIL;
- }
-
- slot->rom_alloc(size, GENERIC_ROM16_WIDTH, ENDIANNESS_BIG);
- slot->common_load_rom(slot->get_rom_base(), size, "rom");
-
- return image_init_result::PASS;
-}
-
-
-static void fccpu1_vme_cards(device_slot_interface &device)
-{
- device.option_add("fcisio", VME_FCISIO1);
- device.option_add("fcscsi", VME_FCSCSI1);
-}
-
-/*
- * Machine configuration
- */
-void force68k_state::fccpu1(machine_config &config)
-{
- /* basic machine hardware */
- M68000(config, m_maincpu, XTAL(16'000'000) / 2);
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
- config.set_default_layout(layout_fccpu1);
-
- /* P3/Host Port config
- * LO command causes ROM monitor to expect S-records on HOST port by default
- * Implementation through nullmodem currently does not support handshakes so
- * the ROM monitor is over-run while checking for checksums etc if used with
- * UI mount <file> feature.
- */
- ACIA6850(config, m_aciahost, 0);
- m_aciahost->txd_handler().set("rs232host", FUNC(rs232_port_device::write_txd));
- m_aciahost->rts_handler().set("rs232host", FUNC(rs232_port_device::write_rts));
-
- rs232_port_device &rs232host(RS232_PORT(config, "rs232host", default_rs232_devices, "null_modem"));
- rs232host.rxd_handler().set(m_aciahost, FUNC(acia6850_device::write_rxd));
- rs232host.cts_handler().set(m_aciahost, FUNC(acia6850_device::write_cts));
-
- /* P4/Terminal Port config */
- ACIA6850(config, m_aciaterm, 0);
- m_aciaterm->txd_handler().set("rs232trm", FUNC(rs232_port_device::write_txd));
- m_aciaterm->rts_handler().set("rs232trm", FUNC(rs232_port_device::write_rts));
-
- rs232_port_device &rs232trm(RS232_PORT(config, "rs232trm", default_rs232_devices, "terminal"));
- rs232trm.rxd_handler().set(m_aciaterm, FUNC(acia6850_device::write_rxd));
- rs232trm.cts_handler().set(m_aciaterm, FUNC(acia6850_device::write_cts));
-
- /* P5/Remote Port config */
- ACIA6850(config, m_aciaremt, 0);
-
- /* Bit Rate Generator */
- MC14411(config, m_brg, XTAL(1'843'200));
- m_brg->out_f<1>().set(FUNC(force68k_state::write_f1_clock));
- m_brg->out_f<3>().set(FUNC(force68k_state::write_f3_clock));
- m_brg->out_f<5>().set(FUNC(force68k_state::write_f5_clock));
- m_brg->out_f<7>().set(FUNC(force68k_state::write_f7_clock));
- m_brg->out_f<8>().set(FUNC(force68k_state::write_f8_clock));
- m_brg->out_f<9>().set(FUNC(force68k_state::write_f9_clock));
- m_brg->out_f<11>().set(FUNC(force68k_state::write_f11_clock));
- m_brg->out_f<13>().set(FUNC(force68k_state::write_f13_clock));
- m_brg->out_f<15>().set(FUNC(force68k_state::write_f15_clock));
-
- /* RTC Real Time Clock device */
- MM58167(config, m_rtc, XTAL(32'768));
-
- /* PIT Parallel Interface and Timer device, assuming strapped for on board clock */
- PIT68230(config, m_pit, XTAL(16'000'000) / 2);
- m_pit->pa_out_callback().set("cent_data_out", FUNC(output_latch_device::bus_w));
- m_pit->h2_out_callback().set(m_centronics, FUNC(centronics_device::write_strobe));
-
- // Centronics
- CENTRONICS(config, m_centronics, centronics_devices, "printer");
- m_centronics->ack_handler().set(FUNC(force68k_state::centronics_ack_w));
- m_centronics->busy_handler().set(FUNC(force68k_state::centronics_busy_w));
- m_centronics->perror_handler().set(FUNC(force68k_state::centronics_perror_w));
- m_centronics->select_handler().set(FUNC(force68k_state::centronics_select_w));
-
- output_latch_device &latch(OUTPUT_LATCH(config, "cent_data_out"));
- m_centronics->set_output_latch(latch);
-
- // EPROM sockets
- fccpu1_eprom_sockets(config);
-
- // VME interface
- VME(config, "vme", 0);
- VME_SLOT(config, "slot1", fccpu1_vme_cards, nullptr, 1, "vme");
-}
-
-#if 0 /*
- * CPU-6 family is device and adressmap compatible with CPU-1 but with additions
- * such as an optional 68881 FPU
- */
-void force68k_state::fccpu6(machine_config &config)
-{
- M68000(config, m_maincpu, XTAL(8'000'000)); /* Jumper B10 Mode B */
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
-}
-
-void force68k_state::fccpu6a(machine_config &config)
-{
- M68000(config, m_maincpu, XTAL(12'500'000)); /* Jumper B10 Mode A */
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
-}
-
-void force68k_state::fccpu6v(machine_config &config)
-{
- M68010(config, m_maincpu, XTAL(8'000'000)); /* Jumper B10 Mode B */
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
-}
-
-void force68k_state::fccpu6va(machine_config &config)
-{
- M68010(config, m_maincpu, XTAL(12'500'000)); /* Jumper B10 Mode A */
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
-}
-
-void force68k_state::fccpu6vb(machine_config &config)
-{
- M68010(config, m_maincpu, XTAL(12'500'000)); /* Jumper B10 Mode A */
- m_maincpu->set_addrmap(AS_PROGRAM, &force68k_state::force68k_mem);
-}
-#endif
-
-/* ROM definitions */
-ROM_START (fccpu1)
- ROM_REGION (0x1000000, "maincpu", 0)
- ROM_DEFAULT_BIOS("forcebug-1.1")
-
- ROM_SYSTEM_BIOS(0, "forcemon-1.0l", "Force Computers SYS68K/CPU-1 Force Monitor 1.0L")
- ROMX_LOAD ("fccpu1v1.0l.j8.bin", 0x080001, 0x2000, CRC (3ac6f08f) SHA1 (502f6547b508d8732bd68bbbb2402d8c30fefc3b), ROM_SKIP(1) | ROM_BIOS(0))
- ROMX_LOAD ("fccpu1v1.0l.j9.bin", 0x080000, 0x2000, CRC (035315fb) SHA1 (90dc44d9c25d28428233e6846da6edce2d69e440), ROM_SKIP(1) | ROM_BIOS(0))
-
- ROM_SYSTEM_BIOS(1, "forcebug-1.1", "Force Computers SYS68K/CPU-1 Force Debugger 1.1")
- ROMX_LOAD ("fccpu1v1.1.j8.bin", 0x080001, 0x4000, CRC (116dcbf0) SHA1 (6870b71606933f84afe27ad031c651d201b93f99), ROM_SKIP(1) | ROM_BIOS(1))
- ROMX_LOAD ("fccpu1v1.1.j9.bin", 0x080000, 0x4000, CRC (aefd5b0b) SHA1 (1e24530a6d5dc4fb77fde67acae08d371e59fc0f), ROM_SKIP(1) | ROM_BIOS(1))
-
-/*
- * System ROM terminal commands
- *
- * COMMAND SUMMARY DESCRIPTION (From CPU-1B datasheet, ROMs were dumped
- * from a CPU-1 board so some features might be missing or different)
- * ---------------------------------------------------------------------------
- * BF <address1> <address2> <data> <CR> Block Fill memory - from addr1 through addr2 with data
- * BM <address1> <address2> <address 3> <CR> Block Move - move from addr1 through addr2to addr3
- * BR [<address> [; <count>] ... ] <CR> Set/display Breakpoint
- * BS <address1> <address2> <data> <CR> Block Search - search addr1 through addr2 for data
- * BT <address1> <address2> <CR> Block Test of memory
- * DC <expression> <CR> Data Conversion
- * DF <CR> Display Formatted registers
- * DU [n] <address1> <address2>[<string>] <CR> Dump memory to object file
- * GO or G [<address] <CR> Execute program.
- * GD [<address] <CR> Go Direct
- * GT <address> <CR> Exec prog: temporary breakpoint
- * HE<CR> Help; display monitor commands
- * LO [n] [;<options] <CR> Load Object file
- * MD <address> [<count>] <CR> Memory Display
- * MM or M <address> [<data<][;<options>] <CR> Memory Modify
- * MS <address> <data1 > <data2> < ... <CR> Memory Set - starting at addr with data 1. data 2 ...
- * NOBR [<address> ... ] <CR> Remove Breakpoint
- * NOPA <CR> Printer Detach (Centronics on PIT/P2)
- * OF <CR> Offset
- * PA <CR> Printer Attach (Centronics on PIT/P2)
- * PF[n] <CR> Set/display Port Format
- * RM <CR> Register Modify
- * TM [<exit character>] <CR> Transparent Mode
- * TR OR T [<count] <CR> Trace
- * TT <address> <CR> Trace: temporary breakpoint
- * VE [n] [<string] <CR> Verify memory/object file
- * ----------------------------------------------------------------------------
- * .AO - .A7 [<expression] <CR> Display/set address register
- * .00 - .07 [<expression] <CR> Display/set data register
- * .RO - .R6 [<expression] <CR> Display/set offset register
- * .PC [<expression] <CR> Display/set program counter
- * .SR [<expression] <CR> Display/set status register
- * .SS [<expression] <CR> Display/set supervisor stack
- * .US [<expression] <CR> Display/set user stack
- * ----------------------------------------------------------------------------
- * MD <address> [<count>]; DI <CR> Disassemble memory location
- * MM <address>; DI <CR> Disassemble/Assemble memory location
- * ----------------------------------------------------------------------------
- * Undocumented commands found in ROM table at address 0x80308
- * .* No WHAT message displayed, no action seen.
- */
-ROM_END
-
-/*
- * CPU-6 ROMs were generally based om VMEPROM which contained the PDOS RTOS from Eyring Research.
- * I don't have these but if anyone can dump them and send to me I can verify that they work as expected.
- */
-#if 0
-ROM_START (fccpu6)
- ROM_REGION (0x1000000, "maincpu", 0)
-ROM_END
-
-ROM_START (fccpu6a)
- ROM_REGION (0x1000000, "maincpu", 0)
-ROM_END
-
-ROM_START (fccpu6v)
- ROM_REGION (0x1000000, "maincpu", 0)
-ROM_END
-
-ROM_START (fccpu6va)
- ROM_REGION (0x1000000, "maincpu", 0)
-ROM_END
-
-ROM_START (fccpu6vb)
- ROM_REGION (0x1000000, "maincpu", 0)
-ROM_END
-#endif
-
-/* Driver */
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1983, fccpu1, 0, 0, fccpu1, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-1", MACHINE_NO_SOUND_HW )
-//COMP( 1989, fccpu6, 0, 0, fccpu6, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-6", MACHINE_IS_SKELETON )
-//COMP( 1989, fccpu6a, 0, 0, fccpu6a, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-6a", MACHINE_IS_SKELETON )
-//COMP( 1989, fccpu6v, 0, 0, fccpu6v, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-6v", MACHINE_IS_SKELETON )
-//COMP( 1989, fccpu6va, 0, 0, fccpu6va, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-6va", MACHINE_IS_SKELETON )
-//COMP( 1989, fccpu6vb, 0, 0, fccpu6vb, force68k, force68k_state, empty_init, "Force Computers GmbH", "SYS68K/CPU-6vb", MACHINE_IS_SKELETON )