summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/pcm.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/pcm.cpp')
-rw-r--r--src/mame/drivers/pcm.cpp383
1 files changed, 0 insertions, 383 deletions
diff --git a/src/mame/drivers/pcm.cpp b/src/mame/drivers/pcm.cpp
deleted file mode 100644
index a68ab28fcba..00000000000
--- a/src/mame/drivers/pcm.cpp
+++ /dev/null
@@ -1,383 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Miodrag Milanovic, Robbbert
-/***************************************************************************
-
-PC/M by Miodrag Milanovic
-
-http://www.li-pro.net/pcm.phtml (in German)
-
-2009-05-12 Preliminary driver.
-2011-02-14 Added keyboard (from terminal).
-2020-07-15 Added banking
-
-Commands:
-1 select memory bank 1
-2 select memory bank 2
-B
-C start cp/m from the inbuilt CCP
-D Debugger
-Fx Format disk A or B
-G Jump to address
-I List files on tape
-L filename.typ Load file from tape
-R read from disk
-S filename aaaa / bbbb save a file to tape
-V verify
-W write to disk
-X
-Z set tape baud (1200, 2400, 3600 (default), 4800)
-filename start running this .COM file
-
-Therefore if you enter random input, it will lock up while trying to
-load up a file of that name. Filenames on disk and tape are of the
-standard 8.3 format. You must specify an extension.
-
-Here is an example of starting the debugger, executing a command in
-it, then exiting back to the monitor.
-
-D
-U
-Q
-
-In practice, the I and R commands produce an error, while all disk
-commands are directed to tape. The F command lists the files on a
-tape.
-
-ToDo:
-- Add NMI generator
-- Find out if there really is any floppy-disk feature - the schematic
- has no mention of it. (it might be the ram drives)
-- Add the 6 LEDs.
-- Need software
-- MNW until we can be sure it works as intended.
-
-****************************************************************************/
-
-#include "emu.h"
-#include "cpu/z80/z80.h"
-#include "machine/z80daisy.h"
-#include "imagedev/cassette.h"
-#include "machine/k7659kb.h"
-#include "machine/z80ctc.h"
-#include "machine/z80sio.h"
-#include "machine/z80pio.h"
-#include "machine/ram.h"
-#include "sound/spkrdev.h"
-#include "emupal.h"
-#include "screen.h"
-#include "speaker.h"
-
-
-class pcm_state : public driver_device
-{
-public:
- pcm_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_ram(*this, RAM_TAG)
- , m_pio_s(*this, "pio_s")
- , m_pio_u(*this, "pio_u")
- , m_ctc_s(*this, "ctc_s")
- , m_ctc_u(*this, "ctc_u")
- , m_speaker(*this, "speaker")
- , m_cass(*this, "cassette")
- , m_vram(*this, "videoram")
- , m_p_chargen(*this, "chargen")
- , m_bank(*this, {"bankr", "bankw", "bank2", "bank3"})
- { }
-
- void pcm(machine_config &config);
-
-private:
- u8 port85_r();
- DECLARE_WRITE_LINE_MEMBER( port82_w );
- void port85_w(u8);
- void port94_w(u8);
- u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- void io_map(address_map &map);
- void mem_map(address_map &map);
-
- bool m_cone;
- u8 m_port85;
- void machine_start() override;
- void machine_reset() override;
- required_device<z80_device> m_maincpu;
- required_device<ram_device> m_ram;
- required_device<z80pio_device> m_pio_s;
- required_device<z80pio_device> m_pio_u;
- required_device<z80ctc_device> m_ctc_s;
- required_device<z80ctc_device> m_ctc_u;
- required_device<speaker_sound_device> m_speaker;
- required_device<cassette_image_device> m_cass;
- optional_shared_ptr<u8> m_vram;
- required_region_ptr<u8> m_p_chargen;
- required_memory_bank_array<4> m_bank;
-};
-
-
-WRITE_LINE_MEMBER( pcm_state::port82_w )
-{
- if (state)
- {
- m_cone ^= 1;
- m_speaker->level_w(m_cone);
- }
-}
-
-
-/* PIO connections as far as i could decipher
-
-PortA is input and connects to the keyboard
-PortB is mostly output and connects to a series of LEDs,
- but also carries the cassette control & data lines.
-
-A0-A6 ascii codes from the keyboard
-A7 strobe, high while a key is pressed
-B0 power indicator LED
-B1 Run/Stop LED
-B2 Sound on/off LED
-B3 n/c
-B4 High=Save, Low=Load LED
-B5 Motor On LED
-B6 Save data
-B7 Load data
-There is also a HALT LED, connected directly to the processor.
-*/
-
-
-u8 pcm_state::port85_r()
-{
- u8 data = m_port85 & 0x7f;
-
- if ((m_cass)->input() > 0.03)
- data |= 0x80;
-
- return data;
-}
-
-void pcm_state::port85_w(u8 data)
-{
- m_cass->change_state(BIT(data, 5) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
- m_cass->output( BIT(data, 6) ? -1.0 : +1.0);
- m_port85 = data;
-}
-
-/* Banking:
-d0,d1,d2 - select which 64k bank (first 3 are internal)
-d3,d4,d5 - external
-d6 - force c000-ffff of 64k bank
-d7(low) - switch in the roms to 0000-1fff
-Real hardware can disable all ram and crash the system. We don't emulate that. */
-
-void pcm_state::port94_w(u8 data)
-{
- u8 bank = BIT(data, 0, 3);
- if (bank < 3)
- {
- m_bank[0]->set_entry(bank);
- m_bank[1]->set_entry(bank);
- m_bank[2]->set_entry(bank);
- m_bank[3]->set_entry(bank);
- }
-
- if (BIT(data, 6))
- m_bank[3]->set_entry(0); // via D13 and D51.1
-
- if (!BIT(data, 7))
- {
- m_bank[0]->set_entry(3); // via D12 and D53.1
- m_bank[1]->set_entry(3);
- }
-}
-
-void pcm_state::mem_map(address_map &map)
-{
- map(0x0000, 0x1fff).bankr("bankr").bankw("bankw");
- map(0x2000, 0xbfff).bankrw("bank2");
- map(0xc000, 0xffff).bankrw("bank3");
-}
-
-void pcm_state::io_map(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0x80, 0x83).rw(m_ctc_s, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); // system CTC
- map(0x84, 0x87).rw(m_pio_s, FUNC(z80pio_device::read), FUNC(z80pio_device::write)); // system PIO
- map(0x88, 0x8B).rw("sio", FUNC(z80sio_device::cd_ba_r), FUNC(z80sio_device::cd_ba_w)); // SIO
- map(0x8C, 0x8F).rw(m_ctc_u, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); // user CTC
- map(0x90, 0x93).rw(m_pio_u, FUNC(z80pio_device::read), FUNC(z80pio_device::write)); // user PIO
- map(0x94, 0x97).w(FUNC(pcm_state::port94_w));
- //map(0x98, 0x9B) // NMI generator for debugging
- map(0x9C, 0x9F); // io ports available to the user
- // disk controller?
-}
-
-/* Input ports */
-static INPUT_PORTS_START( pcm )
-INPUT_PORTS_END
-
-void pcm_state::machine_start()
-{
- u8* r = m_ram->pointer();
- u8 *m = memregion("maincpu")->base();
-
- m_vram.set_target(r+0xf800, 0x800); // Fix position of vram
-
- save_item(NAME(m_cone));
- save_item(NAME(m_port85));
-
- m_bank[0]->configure_entries(0, 3, r, 0x10000);
- m_bank[1]->configure_entries(0, 4, r, 0x10000);
- m_bank[2]->configure_entries(0, 3, r+0x2000, 0x10000);
- m_bank[3]->configure_entries(0, 3, r+0xc000, 0x10000);
- m_bank[0]->configure_entry(3, m);
-}
-
-void pcm_state::machine_reset()
-{
- port94_w(0); // setup initial state of banks
-}
-
-u32 pcm_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- u16 sy=0,ma=0x400;
-
- for (u8 y = 0; y < 16; y++)
- {
- for (u8 ra = 0; ra < 8; ra++)
- {
- u16 *p = &bitmap.pix(sy++);
-
- for (u16 x = ma; x < ma + 64; x++)
- {
- u8 const chr = m_vram[x];
-
- u8 const gfx = m_p_chargen[(chr<<3) | ra];
-
- *p++ = BIT(gfx, 7);
- *p++ = BIT(gfx, 6);
- *p++ = BIT(gfx, 5);
- *p++ = BIT(gfx, 4);
- *p++ = BIT(gfx, 3);
- *p++ = BIT(gfx, 2);
- *p++ = BIT(gfx, 1);
- *p++ = BIT(gfx, 0);
- }
- }
- ma+=64;
- }
- return 0;
-}
-
-
-static const z80_daisy_config daisy_chain[] =
-{
- { "ctc_s" }, /* System ctc */
- { "pio_s" }, /* System pio */
- { "sio" }, /* sio */
- { "pio_u" }, /* User pio */
- { "ctc_u" }, /* User ctc */
- { nullptr }
-};
-
-
-/* F4 Character Displayer */
-static const gfx_layout charlayout =
-{
- 8, 8, /* 8 x 8 characters */
- 256, /* 256 characters */
- 1, /* 1 bits per pixel */
- { 0 }, /* no bitplanes */
- /* x offsets */
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- /* y offsets */
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8*8 /* every char takes 8 bytes */
-};
-
-static GFXDECODE_START( gfx_pcm )
- GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
-GFXDECODE_END
-
-void pcm_state::pcm(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_maincpu, XTAL(10'000'000) /4);
- m_maincpu->set_addrmap(AS_PROGRAM, &pcm_state::mem_map);
- m_maincpu->set_addrmap(AS_IO, &pcm_state::io_map);
- m_maincpu->set_daisy_config(daisy_chain);
-
- /* video hardware */
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_refresh_hz(50);
- screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
- screen.set_screen_update(FUNC(pcm_state::screen_update));
- screen.set_size(64*8, 16*8);
- screen.set_visarea(0, 64*8-1, 0, 16*8-1);
- screen.set_palette("palette");
-
- GFXDECODE(config, "gfxdecode", "palette", gfx_pcm);
- PALETTE(config, "palette", palette_device::MONOCHROME);
-
- /* Sound */
- SPEAKER(config, "mono").front_center();
- SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50);
-
- /* Devices */
- K7659_KEYBOARD(config, K7659_KEYBOARD_TAG, 0);
- CASSETTE(config, m_cass);
- m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
-
- Z80PIO(config, m_pio_u, XTAL(10'000'000)/4);
- m_pio_u->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
-
- Z80PIO(config, m_pio_s, XTAL(10'000'000)/4);
- m_pio_s->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- m_pio_s->in_pa_callback().set(K7659_KEYBOARD_TAG, FUNC(k7659_keyboard_device::read));
- m_pio_s->in_pb_callback().set(FUNC(pcm_state::port85_r));
- m_pio_s->out_pb_callback().set(FUNC(pcm_state::port85_w));
-
- Z80SIO(config, "sio", XTAL(10'000'000) /4);
-
- Z80CTC(config, m_ctc_u, 10_MHz_XTAL / 4);
- m_ctc_u->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
-
- Z80CTC(config, m_ctc_s, 10_MHz_XTAL / 4);
- m_ctc_s->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- m_ctc_s->zc_callback<0>().set("sio", FUNC(z80sio_device::rxca_w));
- m_ctc_s->zc_callback<0>().append("sio", FUNC(z80sio_device::txca_w));
- m_ctc_s->zc_callback<1>().set("sio", FUNC(z80sio_device::rxtxcb_w));
- m_ctc_s->zc_callback<2>().set(FUNC(pcm_state::port82_w)); // speaker
-
- // internal ram: bank0 for cp/m; banks 1 and 2 are ram-drives; last 2k is dummy for rom-write
- RAM(config, RAM_TAG).set_default_size("194K");
-}
-
-/* ROM definition */
-ROM_START( pcm )
- ROM_REGION( 0x2000, "maincpu", 0 )
- ROM_SYSTEM_BIOS( 0, "v202", "Version 2.02" )
- ROMX_LOAD( "bios_v202.d14", 0x0000, 0x0800, CRC(27c24892) SHA1(a97bf9ef075de91330dc0c7cfd3bb6c7a88bb585), ROM_BIOS(0))
- ROMX_LOAD( "bios_v202.d15", 0x0800, 0x0800, CRC(e9cedc70) SHA1(913c526283d9289d0cb2157985bb48193df7aa16), ROM_BIOS(0))
- ROMX_LOAD( "bios_v202.d16", 0x1000, 0x0800, CRC(abe12001) SHA1(d8f0db6b141736d7715d588384fa49ab386bcc55), ROM_BIOS(0))
- ROMX_LOAD( "bios_v202.d17", 0x1800, 0x0800, CRC(2d48d1cc) SHA1(36a825140124dbe10d267fdf28b3eacec6f6d556), ROM_BIOS(0))
- ROM_SYSTEM_BIOS( 1, "v210", "Version 2.10" )
- ROMX_LOAD( "bios_v210.d14", 0x0000, 0x0800, CRC(45923112) SHA1(dde922533ebd0f6ac06d25b9786830ee3c7178b9), ROM_BIOS(1))
- ROMX_LOAD( "bios_v210.d15", 0x0800, 0x0800, CRC(e9cedc70) SHA1(913c526283d9289d0cb2157985bb48193df7aa16), ROM_BIOS(1))
- ROMX_LOAD( "bios_v210.d16", 0x1000, 0x0800, CRC(ee9ed77b) SHA1(12ea18e3e280f2a0657ff11c7bcdd658d325235c), ROM_BIOS(1))
- ROMX_LOAD( "bios_v210.d17", 0x1800, 0x0800, CRC(2d48d1cc) SHA1(36a825140124dbe10d267fdf28b3eacec6f6d556), ROM_BIOS(1))
- ROM_SYSTEM_BIOS( 2, "v330", "Version 3.30" )
- ROMX_LOAD( "bios_v330.d14", 0x0000, 0x0800, CRC(9bbfee10) SHA1(895002f2f4c711278f1e2d0e2a987e2d31472e4f), ROM_BIOS(2))
- ROMX_LOAD( "bios_v330.d15", 0x0800, 0x0800, CRC(4f8d5b40) SHA1(440b0be4cf45a5d450f9eb7684ceb809450585dc), ROM_BIOS(2))
- ROMX_LOAD( "bios_v330.d16", 0x1000, 0x0800, CRC(93fd0d91) SHA1(c8f1bbb63eca3c93560622581ecbb588716aeb91), ROM_BIOS(2))
- ROMX_LOAD( "bios_v330.d17", 0x1800, 0x0800, CRC(d8c7ce33) SHA1(9030d9a73ef1c12a31ac2cb9a593fb2a5097f24d), ROM_BIOS(2))
-
- ROM_REGION(0x0800, "chargen",0)
- ROM_LOAD( "charrom.d113", 0x0000, 0x0800, CRC(5684b3c3) SHA1(418054aa70a0fd120611e32059eb2051d3b82b5a))
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1988, pcm, 0, 0, pcm, pcm, pcm_state, empty_init, "Mugler/Mathes", "PC/M", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )