summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/acvirus.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/acvirus.cpp')
-rw-r--r--src/mame/drivers/acvirus.cpp156
1 files changed, 0 insertions, 156 deletions
diff --git a/src/mame/drivers/acvirus.cpp b/src/mame/drivers/acvirus.cpp
deleted file mode 100644
index a95efbdd4de..00000000000
--- a/src/mame/drivers/acvirus.cpp
+++ /dev/null
@@ -1,156 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:R. Belmont
-/***************************************************************************
-
- acvirus.cpp - Access Virus series
-
- Skeleton driver by R. Belmont
-
- Hardware in brief:
- Virus A: SAB 80C535-N (12 MHz), DSP56303 @ 66 MHz
- Virus B: SAB 80C535-N (12 MHz), DSP56311 @ ??? MHz (illegible on PCB photo I've seen)
- Virus C: SAF 80C515-L24N (24 MHz), DSP56362 @ 120 MHz
-
- Virus Rack is same h/w as B, Rack XL is the same h/w as C.
- Virus Classic is supposed to be the same h/w as B but not proven.
-
- The various 80C5xx chips are i8051-based SoCs with additional I/O ports,
- 256 bytes of internal RAM like the 8052, and an analog/digital converter.
-
- The top 4 bits of port P5 select the bank at 0x8000. P5 is not implemented in
- any of the MCS-51 variants we support yet.
-
- Hardware Notes:
- The DSP has three SRAM chips, probably 128 kbyte each
- for a total of 128 kwords, mapped to address 0x20000. All three DSP
- buses (P, X, Y) point to the same external memory. There's another 128
- kbyte of battery backed SRAM for the 8051.
-
- The firmware image fits exactly in an AM29F040-120PC flash chip, and is
- bank switched into the 8051 program address space. The lower 0x8000
- bytes of the address space always points to the first 0x8000 bytes of
- flash (except during firmware upgrade, as I assume the programming
- routine has do run from RAM). The upper 0x8000 bytes of the address
- space can point to any 0x8000 sized bank in flash. A bank switch routine
- is at 0x64B8, and will switch to e.g. bank 2 (offset 0x10000) when A =
- 0x20. The low nibble is usually zero, but not always, and I don't know
- how it's interpreted.
-
- Banks 0-2 contain OS code and data, banks 3-6 contain DSP code and data,
- and banks 8-14 seem to contain factory default settings. There are flash
- programming routines at the beginning of banks 7 and 15, and two at the
- end of bank 6. Not sure why there are so many, and not all are
- identical, so there's probably additional bank swithing logic to match.
- All display a charming "DO NOT TOUCH ME" message while programming. :)
-
- The same bank switching also seems to affect external memory, but I'm
- not sure how the smaller SRAM is mapped. Some external memory locations
- are used for other tasks, like communicatng with the DSP.
-
- The initial DSP program and data upload routine is at 0x1FAA. After
- setting up the bus, it churns out all the 24-bit words in banks 3-6
- (except for headers) as one stream. The DSP will interpret the first
- word as a length, the second as address, and the following "length"
- words will be stored at that address in program memory before execution
- starts there. This is just a very short bootstrap program, which takes
- care of receiving the remaining words in chunks. Each chunks starts with
- three words - a command, an address, and optionally length. Commands 0-2
- store data in P, X, or Y memory respectively. Command 3 splits each
- 24-bit word into two 12-bit values and store each of them as a 24-bit
- word in Y memory. Command 4 starts execution at the specified address,
- and doesn't have a length.
-
-***************************************************************************/
-
-#include "emu.h"
-#include "cpu/mcs51/mcs51.h"
-#include "machine/intelfsh.h"
-#include "speaker.h"
-
-class acvirus_state : public driver_device
-{
-public:
- acvirus_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_rombank(*this, "rombank")
- { }
-
- void virus(machine_config &config);
-
- void init_virus();
-
-private:
- virtual void machine_start() override;
- virtual void machine_reset() override;
-
- void virus_map(address_map &map);
-
- required_device<cpu_device> m_maincpu;
- required_memory_bank m_rombank;
-};
-
-void acvirus_state::machine_start()
-{
- m_rombank->configure_entries(0, 15, memregion("maincpu")->base(), 0x8000);
- m_rombank->set_entry(3);
-}
-
-void acvirus_state::machine_reset()
-{
-}
-
-void acvirus_state::virus_map(address_map &map)
-{
- map(0x0000, 0x7fff).rom().region("maincpu", 0); // fixed 32K of flash image
- map(0x8000, 0xffff).bankr("rombank");
-}
-
-void acvirus_state::virus(machine_config &config)
-{
- I8052(config, m_maincpu, XTAL(12'000'000));
- m_maincpu->set_addrmap(AS_PROGRAM, &acvirus_state::virus_map);
-
- SPEAKER(config, "lspeaker").front_left();
- SPEAKER(config, "rspeaker").front_right();
-}
-
-static INPUT_PORTS_START( virus )
-INPUT_PORTS_END
-
-ROM_START( virusa )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_a_28.bin", 0x000000, 0x080000, CRC(087cd808) SHA1(fe3310a165c208473822455c75ee5b2a6de34bc8) )
-ROM_END
-
-ROM_START( virusb )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_bt_490x049.bin", 0x000000, 0x080000, CRC(4ffc928a) SHA1(ee4b83e2eb1f01c73e37e2ff1d2edd653a0dcf5b) )
-ROM_END
-
-ROM_START( virusc )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_c_650x352.bin", 0x000000, 0x080000, CRC(d44a9468) SHA1(fad9b896b39a43a1d46acb1d780b78b775a609b8) )
-ROM_END
-
-ROM_START( virusrck )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_rt_210x071.bin", 0x000000, 0x080000, CRC(62b2bcc1) SHA1(241467bcb563736472a6e61f6c9c532590664500) )
-ROM_END
-
-ROM_START( virusrckxl )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_xl_650x079.bin", 0x000000, 0x080000, CRC(d0721c46) SHA1(b7c292b66ba3690a4a50592e17321b9c4147621d) )
-ROM_END
-
-ROM_START( viruscl )
- ROM_REGION(0x80000, "maincpu", 0)
- ROM_LOAD( "virus_cl_061_release.bin", 0x000000, 0x080000, CRC(a202e443) SHA1(33d5f4ebbacc817ab1e5dd572e8dc755f6c5e253) )
-ROM_END
-
-CONS( 1997, virusa, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus A", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )
-CONS( 1999, virusb, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus B (Ver. T)", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )
-CONS( 2002, virusc, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus C", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )
-CONS( 2001, virusrck, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus Rack (Ver. T)", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )
-CONS( 2002, virusrckxl, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus Rack XL", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )
-CONS( 2004, viruscl, 0, 0, virus, virus, acvirus_state, empty_init, "Access", "Virus Classic", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )