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Merge pull request #302 from JoakimLarsson/mz8105_1

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New VME board: Mizar 8105
This commit is contained in:
R. Belmont 2015-09-02 21:25:45 -04:00
commit eb4348b5d8
3 changed files with 376 additions and 0 deletions
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6
scripts/target/mame/mess.lua
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@ -762,6 +762,7 @@ function linkProjects_mame_mess(_target, _subtarget)
"mit",
"mits",
"mitsubishi",
"mizar",
"morrow",
"mos",
"motorola",
@ -1796,6 +1797,11 @@ files {
MAME_DIR .. "src/mess/drivers/multi16.c",
}
createMESSProjects(_target, _subtarget, "mizar")
files {
MAME_DIR .. "src/mess/drivers/mzr8105.c",
}
createMESSProjects(_target, _subtarget, "morrow")
files {
MAME_DIR .. "src/mess/drivers/microdec.c",

1
src/mame/mess.lst
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@ -2606,6 +2606,7 @@ prose2ko
eacc
argo
applix
mzr8105
fccpu1
68ksbc
lcmate2

369
src/mess/drivers/mzr8105.c Normal file
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@ -0,0 +1,369 @@
// license:BSD-3-Clause
// copyright-holders:Joakim Larsson Edstr??m
/***************************************************************************
*
* Mizar VME8105 rev D 3U SBC driver, initially derived from force68k.c
*
* 19/08/2015
*
* I baught this board from http://www.retrotechnology.com without documentation.
* It has a Motorola 68000 CPU @ 10MHz and two 27128 EPROMS with OS9 DEBUG labels
* and not much more except 16 or so TTLs, 2 PALs and a VME P1 connector. It is a
* 2 sided design so it shold be possible to trace the schematics quite easily.
* There is a date on the P1 Connector: "Feb 20 1987"
*
* ||
* ||
* ||
* ||
* ||____________________________________________________________ ___
* || --------------K2|U6-7432|U7-7474|U14-7405|U21-74645 | |_| |
* || | 2764 - low |-+-------+-------+--------+-----------+ | | |
* || | OS9 DEBUG U4| +---------+ +--------+---------+ | | |
* || -------------- | | |U13-7474|U20-74645| | | |
* || ______________ | | +--------+---------+ | | |
* || | | | | ______________K4____ | | |
* || | U3| | | |U12-7438|U19-74244| | |VME|
* || -------------- | |+------K6---------K3---+ | | |
* || ______________ | ||U11-PAL20L10|U18-74244| | |P1 |
* || | 2764 - high | | |+-----021102-+---------+ | | |
* || | OS9 DEBUG U2| |MC68000L10+------------+---------+ | | |
* || |______________| | ||U10-PAL14L4 |U17-74244| | | |
* || | |+-----021001-+---------+ | | |
* || -------------- | |+----+_______|U16-74244|+--+| | |
* || | | | |XTAL |U9-7410+---------+| || | |
* ||K1 | U1| | |FOX100-------+---------+|K5||_| |
* || -------------- |_________|10MHz|U8-7404|U15-74148|| || |___|
* ||--||--------------------------------+----+-------+---------++--+
* ||--||
* ||
*
* PAL:s
*------
* The board has two PAL:s, a PAL20L10 and a PAL14L4.
*
* _____ _____
* OD/CLK 1 |* \_/ | 20 VCC
* CPU A13 I0 2 | | 19 O0/LR A23
* U9 7410p12 I1 3 | | 18 O1/A0 A22
* CPU *AS I2 4 | | 17 02/A1 U2/U4 2764p22 *OE
* GND I3 5 | | 16 03/A2 U11 PAL20L10p6 I4
* CPU A14 I4 6 | U10 | 15 A0/O0 U11 PAL20L10p7 I5
* CPU A15 I5 7 | PAL14L4 | 14 A1/O1 U19 74LS244p11 I0b
* CPU A16 I6 8 | | 13 A2/O2 A18
* CPU A17 I7 9 | | 12 LR/O3 A20
* GND 10 |_____________| 11 CLK/OD A21
*
* _____ _____
* OD/CLK 1 |* \_/ | 24 VCC
* I0 2 | | 23 O0/LR
* CPU *AS I1 3 | | 22 O1/A0
* U10 PAL14L4p3 I2 4 | | 21 02/A1
* I3 5 | | 20 03/A2
* U10 PAL14L4p16 I4 6 | U10 | 19 04/NC
* U10 PAL14L4p15 I5 7 | PAL20L10 | 18 NC/O0
* I6 8 | | 17 A2/O1
* I7 9 | | 16 A1/O2
* I8 10 | | 15 A0/O3
* I9 11 | | 14 LR/O4
* GND 12 |_____________| 13 CLK/OD
*
* Trace is not fully completed and validated.
*
* History of Mizar
*-------------------
* Mizar was one of the first companies that released VME boards in 1982-3 together with
* Force Computers and Motorola. Their systems was often supported by OS9/68000 from Microware.
* In 1993 Mizar discontinued their OS9/CPU board product range and focused entirely on DSP
* boards. RTSI was founded by Mizar employees preserving the knowledge in OS9 as consultants.
* In 1998 Blue Wave resulted from the merger of Mizar and Loughborough Sound Images.
* Not much tech information availabe but I found some quotes about Mizar on the internet:
*
* From http://archive.org/stream/68micro-vol-11-num-02/V11N02_Feb1989_djvu.txt :
*--------------------------------------------------------------------------------
* " Mizar provides complete OS-9 solutions for the VMEbus. Mizar's VME CPUs
* offer (he functions and performance your application demands. Our single
* height (3U) VME processors are uniquely configurable computing engines,
* Through Mizar's unique MXbus™ expansion interface, standard and custom side
* modules can be added to basic processors to create double-height (6U) boards
* tor specific applications, 3U CPU options include 68010, 66020, and 63030
* microprocessors, up to one MB of DRAM, serial I/O, real-time clock, and
* mailbox interrupt support. Standard MXbus side modules include additional DRAM.
* SRAM, and I/O.
*
* Mizar's standard double- height (6U) processors provide additional features such
* as a high-speed cache to enhance 68030 performance, floating, point coprocessor
* support, up to four MB dual ported DRAM, VSB memory interface, Ethernet, and SCSI.
*
* Mizar also supports OS-9 with completely configured OS9 development systems and
* OS-9 application server systems. For more information, call Mizar today
*
* 800-635-0200 MIZAR 1419 Dunn Drive • CarrolHon, TX 75006 • 214-446-2664"
*
* Known boards from Mizar:
*
*-Comp.Os.Vxworks diguest mailing list May 1992: VxWorks Drivers Available from Mizar:
* EMX 7320 Serial I/O Board
* EMX 7550 Ethernet Controller Board (AMD 7990 Lance) MAC: 00:80:F8 MIZAR, INC.
* MZ 7300 Serial I/O Board (Z8530)
* MZ 7400 Disk Controller Board (WD 2010; WD 1772)
* MZ 7500 IEEE-488 (GPIB) Interface Board
* MZ 7810 I/O Expansion Module (6681 DUART)
* MZ 7831 SCSI Expansion Module (WD 33C93A)
* MZ 7850 Ethernet Expansion Module (WD 83C690)
* MZ 8505 IEEE-488 (GPIB) Interface Board"
*- Other sources:
* MZ 8000 ??
* MZ 8105 3U 68000 CPU board
* MZ 8300 3U serial board, 2 NEC 7201 (Z80 DART) and 1 AMD CTS9513 5 x 16 bit Counter/Timer
*
* From http://www.megalextoria.com/forum2/index.php?t=msg&goto=73945&
*--------------------------------------------------------------------
* Aug 20 1984 a report by James Jones from the OS/9 conferance in Des Moines:
* "...
* Mizar: is selling VME bus 68010 boards, running OS-9/68000; they also make
* various memory and I/O boards, disk controller boards, and and a NEC 7220-based
* graphics controller board...."
*
* Misc links about Mizar:
* http://www.vita.com/History
* http://www.verycomputer.com/154_e272024804bbe203_1.htm
* https://www.aihitdata.com/company/00814595/RTSI/overview
*
* Address Map
* --------------------------------------------------------------------------
* Address Range Description/Assumption
* --------------------------------------------------------------------------
* 0x000000 0x01ffff ROM because of fixed vectors
* 0x020000 0x03ffff RAM because bootvector stack starts at 0x21000
* -- VME adresses---
* 0xff0000 0xff0003 Bootstrap expects to find a UPD7201 serial device here
* --------------------------------------------------------------------------
*
* Interrupt sources
* ----------------------------------------------------------
* Description Device Lvl IRQ VME board
* /Board Vector Address
* ----------------------------------------------------------
* On board Sources
* TBD
* Off board Sources (other VME boards)
* TBD
* ----------------------------------------------------------
*
* TODO:
* - Dump the ROMs (DONE)
* - Setup a working address map (DONE)
* - Add VME bus driver (Faked one)
*
****************************************************************************/
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "machine/z80dart.h"
#include "bus/rs232/rs232.h"
#include "machine/clock.h"
#define CARDSLOT 0
#if CARDSLOT // Awaiting info on how to boot the user eproms
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
#endif
#define LOG(x) x
/* These values are borrowed just to get the terminal going and should be replaced
* once a proper serial board hardware (ie MZ 8300) is found and emulated. */
#define BAUDGEN_CLOCK XTAL_19_6608MHz /* fake */
#define UPD_CLOCK (BAUDGEN_CLOCK / 128) /* This will give prompt */
class mzr8105_state : public driver_device
{
public:
mzr8105_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device (mconfig, type, tag),
m_maincpu (*this, "maincpu")
,m_updterm(*this, "upd")
// ,m_cart(*this, "exp_rom1")
{
}
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 ();
DECLARE_WRITE_LINE_MEMBER (write_updterm_clock);
#if CARDSLOT
// User EPROM/SRAM slot(s)
int mzr8105_load_cart(device_image_interface &image, generic_slot_device *slot);
DECLARE_DEVICE_IMAGE_LOAD_MEMBER (exp1_load) { return mzr8105_load_cart(image, m_cart); }
DECLARE_READ16_MEMBER (read16_rom);
#endif
protected:
private:
required_device<cpu_device> m_maincpu;
required_device<upd7201_device> m_updterm;
// Pointer to System ROMs needed by bootvect_r
// UINT16 *m_sysrom;
#if CARDSLOT
UINT16 *m_usrrom;
required_device<generic_slot_device> m_cart;
#endif
};
static ADDRESS_MAP_START (mzr8105_mem, AS_PROGRAM, 16, mzr8105_state)
ADDRESS_MAP_UNMAP_HIGH
//AM_RANGE (0x000000, 0x000007) AM_ROM AM_READ (bootvect_r) /* Not verified */
AM_RANGE (0x000000, 0x003fff) AM_ROM /* System EPROM Area 16Kb OS9 DEBUG - not verified */
AM_RANGE (0x004000, 0x01ffff) AM_ROM /* System EPROM Area 112Kb for System ROM - not verified */
AM_RANGE (0x020000, 0x03ffff) AM_RAM /* Not verified */
//AM_RANGE (0x0a0000, 0x0bffff) AM_ROM /* User EPROM/SRAM Area, max 128Kb mapped by a cartslot */
//AM_RANGE (0x0c0080, 0x0c0081) AM_DEVREADWRITE8 ("aciaterm", acia6850_device, status_r, control_w, 0xff00)
//AM_RANGE (0x0c0082, 0x0c0083) AM_DEVREADWRITE8 ("aciaterm", acia6850_device, data_r, data_w, 0xff00)
AM_RANGE(0x100000, 0xfeffff) AM_READWRITE(vme_a24_r, vme_a24_w) /* VMEbus Rev B addresses (24 bits) - not verified */
//AM_RANGE(0xff0000, 0xffffff) AM_READWRITE(vme_a16_r, vme_a16_w) /* VMEbus Rev B addresses (16 bits) - not verified */
// Faking a Mizar 8300 SIO BOARD in VME A16 adress space
AM_RANGE (0xFF0000, 0xFF0001) AM_DEVREADWRITE8("upd", upd7201_device, da_r, da_w, 0x00ff) /* Dual serial port NEC uPD7201 */
AM_RANGE (0xFF0002, 0xFF0003) AM_DEVREADWRITE8("upd", upd7201_device, ca_r, ca_w, 0x00ff) /* Dual serial port NEC uPD7201 */
AM_RANGE (0xFF0004, 0xFF0005) AM_DEVREADWRITE8("upd", upd7201_device, db_r, db_w, 0x00ff) /* Dual serial port NEC uPD7201 */
AM_RANGE (0xFF0006, 0xFF0007) AM_DEVREADWRITE8("upd", upd7201_device, cb_r, cb_w, 0x00ff) /* Dual serial port NEC uPD7201 */
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START (mzr8105)
INPUT_PORTS_END
/* Start it up */
void mzr8105_state::machine_start ()
{
LOG (logerror ("machine_start\n"));
#if CARDSLOT
/* Map user ROM/RAM socket(s) */
if (m_cart->exists())
{
m_usrrom = (UINT16*)m_cart->get_rom_base();
m_maincpu->space(AS_PROGRAM).install_read_handler(0xa0000, 0xbffff, read16_delegate(FUNC(generic_slot_device::read16_rom), (generic_slot_device*)m_cart));
}
#endif
}
/* Dummy VME access methods until the VME bus device is ready for use */
READ16_MEMBER (mzr8105_state::vme_a24_r){
LOG (logerror ("vme_a24_r\n"));
return (UINT16) 0;
}
WRITE16_MEMBER (mzr8105_state::vme_a24_w){
LOG (logerror ("vme_a24_w\n"));
}
READ16_MEMBER (mzr8105_state::vme_a16_r){
LOG (logerror ("vme_16_r\n"));
return (UINT16) 0;
}
WRITE16_MEMBER (mzr8105_state::vme_a16_w){
LOG (logerror ("vme_a16_w\n"));
}
#if CARDSLOT
/*
* 4. The USER EPROM Area
*/
// Implementation of static 2 x 64K EPROM in sockets U1/U3 as 16 bit wide cartridge for easier
// software handling. TODO: make configurable according to table above.
static MACHINE_CONFIG_FRAGMENT( mzr8105_eprom_sockets )
MCFG_GENERIC_CARTSLOT_ADD("exp_rom1", generic_plain_slot, "mzr8105_cart")
MCFG_GENERIC_EXTENSIONS("bin,rom")
MCFG_GENERIC_WIDTH(GENERIC_ROM16_WIDTH)
MCFG_GENERIC_ENDIAN(ENDIANNESS_BIG)
MCFG_GENERIC_LOAD(mzr8105_state, exp1_load)
// MCFG_SOFTWARE_LIST_ADD("cart_list", "mzr8105_cart")
MACHINE_CONFIG_END
/***************************
Rom loading functions
****************************/
int mzr8105_state::mzr8105_load_cart(device_image_interface &image, generic_slot_device *slot)
{
UINT32 size = slot->common_get_size("rom");
if (size > 0x20000) // Max 128Kb - not verified
{
LOG( printf("Cartridge size exceeding max size (128Kb): %d\n", size) );
image.seterror(IMAGE_ERROR_UNSPECIFIED, "Cartridge size exceeding max size (128Kb)");
return IMAGE_INIT_FAIL;
}
slot->rom_alloc(size, GENERIC_ROM16_WIDTH, ENDIANNESS_BIG);
slot->common_load_rom(slot->get_rom_base(), size, "rom");
return IMAGE_INIT_PASS;
}
#endif
WRITE_LINE_MEMBER (mzr8105_state::write_updterm_clock){
m_updterm->txca_w (state);
m_updterm->rxca_w (state);
}
/*
* Machine configuration
*/
static MACHINE_CONFIG_START (mzr8105, mzr8105_state)
/* basic machine hardware */
MCFG_CPU_ADD ("maincpu", M68000, XTAL_10MHz)
MCFG_CPU_PROGRAM_MAP (mzr8105_mem)
/* Terminal Port config */
MCFG_UPD7201_ADD("upd", XTAL_4MHz, 0, 0, 0, 0 )
MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE("rs232trm", rs232_port_device, write_txd))
MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE("rs232trm", rs232_port_device, write_dtr))
MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE("rs232trm", rs232_port_device, write_rts))
MCFG_RS232_PORT_ADD ("rs232trm", default_rs232_devices, "terminal")
MCFG_RS232_RXD_HANDLER (DEVWRITELINE ("upd", upd7201_device, rxa_w))
MCFG_RS232_CTS_HANDLER (DEVWRITELINE ("upd", upd7201_device, ctsa_w))
MCFG_DEVICE_ADD ("updterm_clock", CLOCK, UPD_CLOCK)
MCFG_CLOCK_SIGNAL_HANDLER (WRITELINE (mzr8105_state, write_updterm_clock))
#if CARDSLOT
// EPROM sockets
MCFG_FRAGMENT_ADD(mzr8105_eprom_sockets)
#endif
MACHINE_CONFIG_END
/* ROM definitions */
ROM_START (mzr8105)
ROM_REGION (0x1000000, "maincpu", 0)
ROM_LOAD16_BYTE ("mzros9LB.bin", 0x000001, 0x2000, CRC (7c6a354d) SHA1 (2721eb649c8046dbcb517a36a97dc0816cd133f2))
ROM_LOAD16_BYTE ("mzros9HB.bin", 0x000000, 0x2000, CRC (d18e69a6) SHA1 (a00b68f4d649bcc09a29361f8692e52be12b3792))
/*
* System ROM information
*
* The ROMs contains an OS9 bootloader. It is position independent but reset vector suggests that it sits flat on adress 0 (zero)
*
* We got a prompt but the command reportoair are very sparse to non OS9 users so investigation needed.
*
*/
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP (1987, mzr8105, 0, 0, mzr8105, mzr8105, driver_device, 0, "Mizar Inc", "Mizar VME8105", MACHINE_IS_SKELETON )