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Diffstat (limited to 'src/mess/drivers/pcm.c')
-rw-r--r--src/mess/drivers/pcm.c330
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diff --git a/src/mess/drivers/pcm.c b/src/mess/drivers/pcm.c
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index ee4024b4b02..00000000000
--- a/src/mess/drivers/pcm.c
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-// license:BSD-3-Clause
-// copyright-holders:Miodrag Milanovic, Robbbert
-/***************************************************************************
-
- PC/M by Miodrag Milanovic
-
- http://www.li-pro.net/pcm.phtml (in German)
-
- 12/05/2009 Preliminary driver.
-
- 14/02/2011 Added keyboard (from terminal).
-
- 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
- E
-
- 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 bankswitching
- - Add NMI generator
- - Find out if there really is any floppy-disk feature - the schematic
- has no mention of it.
- - Add the 6 LEDs.
-
-****************************************************************************/
-
-#include "emu.h"
-#include "machine/z80ctc.h"
-#include "machine/z80pio.h"
-#include "machine/z80dart.h"
-#include "cpu/z80/z80.h"
-#include "cpu/z80/z80daisy.h"
-#include "imagedev/cassette.h"
-#include "sound/speaker.h"
-#include "sound/wave.h"
-#include "machine/k7659kb.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_pio_s(*this, "z80pio_s"),
- m_pio_u(*this, "z80pio_u"),
- m_sio(*this, "z80sio"),
- m_ctc_s(*this, "z80ctc_s"),
- m_ctc_u(*this, "z80ctc_u"),
- m_speaker(*this, "speaker"),
- m_cass(*this, "cassette"),
- m_p_videoram(*this, "videoram"){ }
-
- required_device<cpu_device> m_maincpu;
- required_device<z80pio_device> m_pio_s;
- required_device<z80pio_device> m_pio_u;
- required_device<z80sio0_device> m_sio;
- 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;
- DECLARE_READ8_MEMBER( pcm_85_r );
- DECLARE_WRITE_LINE_MEMBER( pcm_82_w );
- DECLARE_WRITE8_MEMBER( pcm_85_w );
- UINT8 *m_p_chargen;
- bool m_cone;
- required_shared_ptr<UINT8> m_p_videoram;
- virtual void machine_reset();
- virtual void video_start();
- UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-private:
- UINT8 m_85;
-};
-
-
-WRITE_LINE_MEMBER( pcm_state::pcm_82_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.
-*/
-
-
-READ8_MEMBER( pcm_state::pcm_85_r )
-{
- UINT8 data = m_85 & 0x7f;
-
- if ((m_cass)->input() > 0.03)
- data |= 0x80;
-
- return data;
-}
-
-WRITE8_MEMBER( pcm_state::pcm_85_w )
-{
- if (BIT(data, 5))
- m_cass->change_state(CASSETTE_MOTOR_ENABLED,CASSETTE_MASK_MOTOR);
- else
- m_cass->change_state(CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR);
-
- m_cass->output( BIT(data, 6) ? -1.0 : +1.0);
- m_85 = data;
-}
-
-
-
-static ADDRESS_MAP_START(pcm_mem, AS_PROGRAM, 8, pcm_state)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE( 0x0000, 0x1fff ) AM_ROM // ROM
- AM_RANGE( 0x2000, 0xf7ff ) AM_RAM // RAM
- AM_RANGE( 0xf800, 0xffff ) AM_RAM AM_SHARE("videoram") // Video RAM
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START(pcm_io, AS_IO, 8, pcm_state)
- ADDRESS_MAP_UNMAP_HIGH
- ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE(0x80, 0x83) AM_DEVREADWRITE("z80ctc_s", z80ctc_device, read, write) // system CTC
- AM_RANGE(0x84, 0x87) AM_DEVREADWRITE("z80pio_s", z80pio_device, read, write) // system PIO
- AM_RANGE(0x88, 0x8B) AM_DEVREADWRITE("z80sio", z80sio0_device, cd_ba_r, cd_ba_w) // SIO
- AM_RANGE(0x8C, 0x8F) AM_DEVREADWRITE("z80ctc_u", z80ctc_device, read, write) // user CTC
- AM_RANGE(0x90, 0x93) AM_DEVREADWRITE("z80pio_u", z80pio_device, read, write) // user PIO
- //AM_RANGE(0x94, 0x97) // bank select
- //AM_RANGE(0x98, 0x9B) // NMI generator
- //AM_RANGE(0x9C, 0x9F) // io ports available to the user
- // disk controller?
-ADDRESS_MAP_END
-
-/* Input ports */
-static INPUT_PORTS_START( pcm )
-INPUT_PORTS_END
-
-void pcm_state::machine_reset()
-{
-}
-
-void pcm_state::video_start()
-{
- m_p_chargen = memregion("chargen")->base();
-}
-
-UINT32 pcm_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- UINT8 y,ra,chr,gfx;
- UINT16 sy=0,ma=0x400,x;
-
- for (y = 0; y < 16; y++)
- {
- for (ra = 0; ra < 8; ra++)
- {
- UINT16 *p = &bitmap.pix16(sy++);
-
- for (x = ma; x < ma + 64; x++)
- {
- chr = m_p_videoram[x];
-
- 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 pcm_daisy_chain[] =
-{
- { "z80ctc_s" }, /* System ctc */
- { "z80pio_s" }, /* System pio */
- { "z80sio" }, /* sio */
- { "z80pio_u" }, /* User pio */
- { "z80ctc_u" }, /* User ctc */
- { NULL }
-};
-
-
-/* F4 Character Displayer */
-static const gfx_layout pcm_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( pcm )
- GFXDECODE_ENTRY( "chargen", 0x0000, pcm_charlayout, 0, 1 )
-GFXDECODE_END
-
-static MACHINE_CONFIG_START( pcm, pcm_state )
- /* basic machine hardware */
- MCFG_CPU_ADD("maincpu",Z80, XTAL_10MHz /4)
- MCFG_CPU_PROGRAM_MAP(pcm_mem)
- MCFG_CPU_IO_MAP(pcm_io)
- MCFG_CPU_CONFIG(pcm_daisy_chain)
-
- /* video hardware */
- MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_REFRESH_RATE(50)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
- MCFG_SCREEN_UPDATE_DRIVER(pcm_state, screen_update)
- MCFG_SCREEN_SIZE(64*8, 16*8)
- MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 16*8-1)
- MCFG_SCREEN_PALETTE("palette")
-
- MCFG_GFXDECODE_ADD("gfxdecode", "palette", pcm)
- MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
-
- /* Sound */
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
- MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
-
- /* Devices */
- MCFG_K7659_KEYBOARD_ADD()
- MCFG_CASSETTE_ADD("cassette")
-
- MCFG_DEVICE_ADD("z80pio_u", Z80PIO, XTAL_10MHz/4)
- MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
-
- MCFG_DEVICE_ADD("z80pio_s", Z80PIO, XTAL_10MHz/4)
- MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
- MCFG_Z80PIO_IN_PA_CB(DEVREAD8(K7659_KEYBOARD_TAG, k7659_keyboard_device, read))
- MCFG_Z80PIO_IN_PB_CB(READ8(pcm_state, pcm_85_r))
- MCFG_Z80PIO_OUT_PB_CB(WRITE8(pcm_state, pcm_85_w))
-
- MCFG_Z80SIO0_ADD("z80sio", 4800, 0, 0, 0, 0) // clocks come from the system ctc
-
- MCFG_DEVICE_ADD("z80ctc_u", Z80CTC, XTAL_10MHz /4)
- MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
-
- MCFG_DEVICE_ADD("z80ctc_s", Z80CTC, XTAL_10MHz /4)
- MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
- // ZC0 : SIO channel A clock
- // ZC1 : SIO channel B clock
- MCFG_Z80CTC_ZC2_CB(WRITELINE(pcm_state, pcm_82_w)) // speaker
-MACHINE_CONFIG_END
-
-/* ROM definition */
-ROM_START( pcm )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS( 0, "v202", "Version 2.02" )
- ROMX_LOAD( "bios_v202.d14", 0x0000, 0x0800, CRC(27c24892) SHA1(a97bf9ef075de91330dc0c7cfd3bb6c7a88bb585), ROM_BIOS(1))
- ROMX_LOAD( "bios_v202.d15", 0x0800, 0x0800, CRC(e9cedc70) SHA1(913c526283d9289d0cb2157985bb48193df7aa16), ROM_BIOS(1))
- ROMX_LOAD( "bios_v202.d16", 0x1000, 0x0800, CRC(abe12001) SHA1(d8f0db6b141736d7715d588384fa49ab386bcc55), ROM_BIOS(1))
- ROMX_LOAD( "bios_v202.d17", 0x1800, 0x0800, CRC(2d48d1cc) SHA1(36a825140124dbe10d267fdf28b3eacec6f6d556), ROM_BIOS(1))
- ROM_SYSTEM_BIOS( 1, "v210", "Version 2.10" )
- ROMX_LOAD( "bios_v210.d14", 0x0000, 0x0800, CRC(45923112) SHA1(dde922533ebd0f6ac06d25b9786830ee3c7178b9), ROM_BIOS(2))
- ROMX_LOAD( "bios_v210.d15", 0x0800, 0x0800, CRC(e9cedc70) SHA1(913c526283d9289d0cb2157985bb48193df7aa16), ROM_BIOS(2))
- ROMX_LOAD( "bios_v210.d16", 0x1000, 0x0800, CRC(ee9ed77b) SHA1(12ea18e3e280f2a0657ff11c7bcdd658d325235c), ROM_BIOS(2))
- ROMX_LOAD( "bios_v210.d17", 0x1800, 0x0800, CRC(2d48d1cc) SHA1(36a825140124dbe10d267fdf28b3eacec6f6d556), ROM_BIOS(2))
- ROM_SYSTEM_BIOS( 2, "v330", "Version 3.30" )
- ROMX_LOAD( "bios_v330.d14", 0x0000, 0x0800, CRC(9bbfee10) SHA1(895002f2f4c711278f1e2d0e2a987e2d31472e4f), ROM_BIOS(3))
- ROMX_LOAD( "bios_v330.d15", 0x0800, 0x0800, CRC(4f8d5b40) SHA1(440b0be4cf45a5d450f9eb7684ceb809450585dc), ROM_BIOS(3))
- ROMX_LOAD( "bios_v330.d16", 0x1000, 0x0800, CRC(93fd0d91) SHA1(c8f1bbb63eca3c93560622581ecbb588716aeb91), ROM_BIOS(3))
- ROMX_LOAD( "bios_v330.d17", 0x1800, 0x0800, CRC(d8c7ce33) SHA1(9030d9a73ef1c12a31ac2cb9a593fb2a5097f24d), ROM_BIOS(3))
-
- ROM_REGION(0x0800, "chargen",0)
- ROM_LOAD( "charrom.d113", 0x0000, 0x0800, CRC(5684b3c3) SHA1(418054aa70a0fd120611e32059eb2051d3b82b5a))
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
-COMP( 1988, pcm, 0, 0, pcm, pcm, driver_device, 0, "Mugler/Mathes", "PC/M", 0)