mirror of
https://github.com/holub/mame
synced 2025-04-23 08:49:55 +03:00
NEW skeleton driver for fccpu20 Force SYS68K CPU-20
This commit is contained in:
Joakim Larsson Edstrom
parent
f34174de56
commit
4667f27392
293
src/mame/drivers/fccpu20.cpp
Normal file
293
src/mame/drivers/fccpu20.cpp
Normal file
@ -0,0 +1,293 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Joakim Larsson Edstrom
|
||||
/***************************************************************************
|
||||
*
|
||||
* Force SYS68K CPU-20 VME SBC drivers
|
||||
*
|
||||
* 24/12/2016
|
||||
*
|
||||
* Thanks to Al Kossow and his site http://www.bitsavers.org/ I got the information
|
||||
* required to start the work with this driver.
|
||||
*
|
||||
*
|
||||
* ||
|
||||
* || || CPU-20
|
||||
* ||||--||_____________________________________________________________
|
||||
* ||||--|| |
|
||||
* || || _ |__
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | |VME|
|
||||
* || | | |
|
||||
* || | |P1 |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || |_| |
|
||||
* || |___|
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |
|
||||
* || |___
|
||||
* || _| |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | |VME|
|
||||
* || | | |
|
||||
* || | |P2 |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || | | |
|
||||
* || |_| |
|
||||
* || |___|
|
||||
* || || +
|
||||
* ||||--|| |
|
||||
* ||||--||--------------------------------------------------------------+
|
||||
* ||
|
||||
*
|
||||
* History of Force Computers
|
||||
*---------------------------
|
||||
*
|
||||
* Misc links about Force Computes and this board:
|
||||
*------------------------------------------------
|
||||
* http://bitsavers.trailing-edge.com/pdf/forceComputers/
|
||||
*
|
||||
* Description(s)
|
||||
* -------------
|
||||
* CPU-20 has the following feature set
|
||||
*
|
||||
* Address Map
|
||||
* --------------------------------------------------------------------------
|
||||
* Range Decscription
|
||||
* --------------------------------------------------------------------------
|
||||
* 00000000-0xxFFFFF Shared DRAM D8-D32
|
||||
* 0yy00000-FAFFFFFF VME A32 D8-D32 yy=xx+1
|
||||
* FB000000-FBFEFFFF VME A24 D8-D32
|
||||
* FBFF0000-FBFFFFFF VME A16 D8-D32
|
||||
* FC000000-FCFEFFFF VME A24 D8-D16
|
||||
* FCFF0000-FCFFFFFF VME A16 D8-D16
|
||||
* .... TBC
|
||||
* --------------------------------------------------------------------------
|
||||
*
|
||||
* PIT #1 hardware wiring
|
||||
* ----------------------------------------------------------
|
||||
* PA0-PA3 TBC
|
||||
* PA4-PA7
|
||||
* H1-H4
|
||||
* PB0-PB2
|
||||
* PB3-PB4
|
||||
* PB5
|
||||
* PB6-PB7
|
||||
* PC0,PC1
|
||||
* PC4,PC7
|
||||
* PC2
|
||||
* PC3
|
||||
* PC5
|
||||
* PC6
|
||||
*
|
||||
* PIT #2 hardware setup wiring
|
||||
* ----------------------------------------------------------
|
||||
* PA0-PA7 TBC
|
||||
* H1-H4
|
||||
* PB0-PB2
|
||||
* PB3-PB7
|
||||
* PC0-PC1
|
||||
* PC2
|
||||
* PC3
|
||||
* PC4
|
||||
* PC5
|
||||
* PC6
|
||||
* PC7
|
||||
*
|
||||
*---------------------------------------------------------------------------
|
||||
* TODO:
|
||||
* - Add VxWorks proms
|
||||
* - Add more devices
|
||||
* - Write VME device
|
||||
* - Add variants of boards
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#include "emu.h"
|
||||
#include "cpu/m68000/m68000.h"
|
||||
#include "bus/rs232/rs232.h"
|
||||
#include "machine/clock.h"
|
||||
//#include "machine/timekpr.h"
|
||||
|
||||
#define LOG_GENERAL 0x01
|
||||
#define LOG_SETUP 0x02
|
||||
#define LOG_PRINTF 0x04
|
||||
|
||||
#define VERBOSE 0 // (LOG_PRINTF | LOG_SETUP | LOG_GENERAL)
|
||||
|
||||
#define LOGMASK(mask, ...) do { if (VERBOSE & mask) logerror(__VA_ARGS__); } while (0)
|
||||
#define LOGLEVEL(mask, level, ...) do { if ((VERBOSE & mask) >= level) logerror(__VA_ARGS__); } while (0)
|
||||
|
||||
#define LOG(...) LOGMASK(LOG_GENERAL, __VA_ARGS__)
|
||||
#define LOGSETUP(...) LOGMASK(LOG_SETUP, __VA_ARGS__)
|
||||
|
||||
#if VERBOSE & LOG_PRINTF
|
||||
#define logerror printf
|
||||
#endif
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#define FUNCNAME __func__
|
||||
#else
|
||||
#define FUNCNAME __PRETTY_FUNCTION__
|
||||
#endif
|
||||
|
||||
class cpu20_state : public driver_device
|
||||
{
|
||||
public:
|
||||
cpu20_state(const machine_config &mconfig, device_type type, const char *tag)
|
||||
: driver_device (mconfig, type, tag)
|
||||
, m_maincpu (*this, "maincpu")
|
||||
{
|
||||
}
|
||||
DECLARE_READ32_MEMBER (bootvect_r);
|
||||
DECLARE_WRITE32_MEMBER (bootvect_w);
|
||||
virtual void machine_start () override;
|
||||
virtual void machine_reset () override;
|
||||
|
||||
private:
|
||||
required_device<m68000_base_device> m_maincpu;
|
||||
// Pointer to System ROMs needed by bootvect_r and masking RAM buffer for post reset accesses
|
||||
uint32_t *m_sysrom;
|
||||
uint32_t m_sysram[2];
|
||||
};
|
||||
|
||||
static ADDRESS_MAP_START (cpu20_mem, AS_PROGRAM, 32, cpu20_state)
|
||||
ADDRESS_MAP_UNMAP_HIGH
|
||||
AM_RANGE (0x00000000, 0x00000007) AM_ROM AM_READ (bootvect_r) /* ROM mirror just during reset */
|
||||
AM_RANGE (0x00000000, 0x00000007) AM_RAM AM_WRITE (bootvect_w) /* After first write we act as RAM */
|
||||
AM_RANGE (0x00000008, 0x003fffff) AM_RAM /* RAM installed in machine start */
|
||||
AM_RANGE (0xff040000, 0xff04ffff) AM_RAM /* RAM installed in machine start */
|
||||
AM_RANGE (0xff000000, 0xff00ffff) AM_ROM AM_REGION("roms", 0x0000)
|
||||
// AM_RANGE (0xffff0000, 0xffffffff) AM_ROM AM_REGION("roms", 0x0000)
|
||||
|
||||
//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 */
|
||||
ADDRESS_MAP_END
|
||||
|
||||
/* Input ports */
|
||||
static INPUT_PORTS_START (cpu20)
|
||||
INPUT_PORTS_END
|
||||
|
||||
/* Start it up */
|
||||
void cpu20_state::machine_start ()
|
||||
{
|
||||
LOGSETUP("%s\n", FUNCNAME);
|
||||
|
||||
save_pointer (NAME (m_sysrom), sizeof(m_sysrom));
|
||||
save_pointer (NAME (m_sysram), sizeof(m_sysram));
|
||||
|
||||
/* Setup pointer to bootvector in ROM for bootvector handler bootvect_r */
|
||||
m_sysrom = (uint32_t*)(memregion ("roms")->base());
|
||||
}
|
||||
|
||||
void cpu20_state::machine_reset ()
|
||||
{
|
||||
LOGSETUP("%s\n", FUNCNAME);
|
||||
|
||||
/* Reset pointer to bootvector in ROM for bootvector handler bootvect_r */
|
||||
if (m_sysrom == &m_sysram[0]) /* Condition needed because memory map is not setup first time */
|
||||
m_sysrom = (uint32_t*)(memregion ("roms")->base());
|
||||
}
|
||||
|
||||
#if 0
|
||||
/* setup board ID */
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20x ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20xa ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20za ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20zbe ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20be8 ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20be16 ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20lite4 ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu20lite8 ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x50; }
|
||||
DRIVER_INIT_MEMBER( cpu20_state, cpu33 ) { LOGSETUP("%s\n", FUNCNAME); m_board_id = 0x68; } // 0x60 skips FGA prompt
|
||||
#endif
|
||||
|
||||
/* Boot vector handler, the PCB hardwires the first 8 bytes from 0xff800000 to 0x0 at reset*/
|
||||
READ32_MEMBER (cpu20_state::bootvect_r){
|
||||
LOG("%s\n", FUNCNAME);
|
||||
return m_sysrom[offset];
|
||||
}
|
||||
|
||||
WRITE32_MEMBER (cpu20_state::bootvect_w){
|
||||
LOG("%s\n", FUNCNAME);
|
||||
m_sysram[offset % sizeof(m_sysram)] &= ~mem_mask;
|
||||
m_sysram[offset % sizeof(m_sysram)] |= (data & mem_mask);
|
||||
m_sysrom = &m_sysram[0]; // redirect all upcomming accesses to masking RAM until reset.
|
||||
}
|
||||
|
||||
#if 0
|
||||
void cpu20_state::update_irq_to_maincpu()
|
||||
{
|
||||
LOGINT(("%s()\n", FUNCNAME);
|
||||
LOGINT((" - fga_irq_level: %02x\n", fga_irq_level));
|
||||
LOGINT((" - fga_irq_state: %02x\n", fga_irq_state));
|
||||
switch (fga_irq_level & 0x07)
|
||||
{
|
||||
case 1: m_maincpu->set_input_line(M68K_IRQ_1, fga_irq_state); break;
|
||||
case 2: m_maincpu->set_input_line(M68K_IRQ_2, fga_irq_state); break;
|
||||
case 3: m_maincpu->set_input_line(M68K_IRQ_3, fga_irq_state); break;
|
||||
case 4: m_maincpu->set_input_line(M68K_IRQ_4, fga_irq_state); break;
|
||||
case 5: m_maincpu->set_input_line(M68K_IRQ_5, fga_irq_state); break;
|
||||
case 6: m_maincpu->set_input_line(M68K_IRQ_6, fga_irq_state); break;
|
||||
case 7: m_maincpu->set_input_line(M68K_IRQ_7, fga_irq_state); break;
|
||||
default: logerror("Programmatic error in %s, please report\n", FUNCNAME);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Machine configuration
|
||||
*/
|
||||
static MACHINE_CONFIG_START (cpu20, cpu20_state)
|
||||
/* basic machine hardware */
|
||||
MCFG_CPU_ADD ("maincpu", M68020, XTAL_20MHz)
|
||||
MCFG_CPU_PROGRAM_MAP (cpu20_mem)
|
||||
MACHINE_CONFIG_END
|
||||
|
||||
/* ROM definitions */
|
||||
ROM_START (fccpu20) /* This is an original rom dump */
|
||||
ROM_REGION32_BE(0x10000, "roms", 0)
|
||||
// Boots with Board ID set to: 0x36 (FGA002 BOOT on terminal P4, "Wait until harddisk is up to speed " on terminal P1)
|
||||
ROM_LOAD32_BYTE("L.BIN", 0x000002, 0x4000, CRC (174ab801) SHA1 (0d7b8ed29d5fdd4bd2073005008120c5f20128dd))
|
||||
ROM_LOAD32_BYTE("LL.BIN", 0x000003, 0x4000, CRC (9fd9e3e4) SHA1 (e5a7c87021e6be412dd5a8166d9f62b681169eda))
|
||||
ROM_LOAD32_BYTE("U.BIN", 0x000001, 0x4000, CRC (d1afe4c0) SHA1 (b5baf9798d73632f7bb843cbc4b306c8c03f4296))
|
||||
ROM_LOAD32_BYTE("UU.BIN", 0x000000, 0x4000, CRC (b54d623b) SHA1 (49b272184a04570b09004de71fae0ed0d1bf5929))
|
||||
ROM_END
|
||||
|
||||
ROM_START (nodump)
|
||||
ROM_REGION32_BE(0x900000, "roms", 0)
|
||||
ROM_LOAD("rom.bin", 0x800000, 0x10000, NO_DUMP)
|
||||
ROM_END
|
||||
|
||||
/*
|
||||
* System ROM information
|
||||
*
|
||||
* xxxxxxx bootprom version xxx is released mmm dd, yyyy, coprighted by FORCE Computers Gmbh
|
||||
*/
|
||||
/* Driver */
|
||||
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
|
||||
COMP (1986, fccpu20, 0, 0, cpu20, cpu20, driver_device, 0, "Force Computers Gmbh", "SYS68K/CPU-20", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW | MACHINE_TYPE_COMPUTER )
|
||||
@ -12207,6 +12207,9 @@ fb01 // 1986 FB-01
|
||||
@source:fc100.cpp
|
||||
fc100 //
|
||||
|
||||
@source:fccpu20.cpp
|
||||
fccpu20
|
||||
|
||||
@source:fccpu30.cpp
|
||||
fccpu30
|
||||
fccpu30x
|
||||
|
||||
Loading…
Reference in New Issue
Block a user