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Diffstat (limited to 'src/mess/drivers/cd2650.c')
-rw-r--r--src/mess/drivers/cd2650.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/src/mess/drivers/cd2650.c b/src/mess/drivers/cd2650.c
deleted file mode 100644
index 2e2b8e0d895..00000000000
--- a/src/mess/drivers/cd2650.c
+++ /dev/null
@@ -1,323 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/***************************************************************************
-
-Central Data cd2650
-
-2010-04-08 Skeleton driver.
-
-No info available on this computer apart from a few newsletters.
-The system only uses 1000-14FF for videoram and 17F0-17FF for
-scratch ram. All other ram is optional.
-
-Commands (must be in uppercase):
-A Examine memory; press C to alter memory
-B Set breakpoint?
-C View breakpoint?
-D Dump to tape
-E Execute
-I ?
-L Load
-R ?
-V Verify?
-Press Esc to exit most commands.
-
-TODO
-- Lots, probably. The computer is a complete mystery. No manuals or schematics exist.
-- Cassette doesn't work.
-
-****************************************************************************/
-
-#include "emu.h"
-#include "cpu/s2650/s2650.h"
-#include "machine/keyboard.h"
-#include "imagedev/snapquik.h"
-#include "imagedev/cassette.h"
-#include "sound/wave.h"
-#include "sound/beep.h"
-
-#define KEYBOARD_TAG "keyboard"
-
-class cd2650_state : public driver_device
-{
-public:
- cd2650_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_p_videoram(*this, "videoram"),
- m_maincpu(*this, "maincpu"),
- m_beep(*this, "beeper"),
- m_cass(*this, "cassette")
- {
- }
-
- DECLARE_READ8_MEMBER(keyin_r);
- DECLARE_WRITE8_MEMBER(beep_w);
- DECLARE_WRITE8_MEMBER(kbd_put);
- DECLARE_READ8_MEMBER(cass_r);
- DECLARE_WRITE_LINE_MEMBER(cass_w);
- DECLARE_QUICKLOAD_LOAD_MEMBER(cd2650);
- const UINT8 *m_p_chargen;
- UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
- required_shared_ptr<UINT8> m_p_videoram;
-
-private:
- UINT8 m_term_data;
- virtual void machine_reset();
- virtual void video_start();
- required_device<cpu_device> m_maincpu;
- required_device<beep_device> m_beep;
- required_device<cassette_image_device> m_cass;
-};
-
-
-WRITE8_MEMBER( cd2650_state::beep_w )
-{
- if (data & 7)
- m_beep->set_state(BIT(data, 3));
-}
-
-WRITE_LINE_MEMBER( cd2650_state::cass_w )
-{
- m_cass->output(state ? -1.0 : +1.0);
-}
-
-READ8_MEMBER( cd2650_state::cass_r )
-{
- return (m_cass->input() > 0.03) ? 1 : 0;
-}
-
-READ8_MEMBER( cd2650_state::keyin_r )
-{
- UINT8 ret = m_term_data;
- m_term_data = ret | 0x80;
- return ret;
-}
-
-static ADDRESS_MAP_START(cd2650_mem, AS_PROGRAM, 8, cd2650_state)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE( 0x0000, 0x03ff) AM_ROM AM_REGION("roms", 0)
- AM_RANGE( 0x1000, 0x7fff) AM_RAM AM_SHARE("videoram")
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( cd2650_io, AS_IO, 8, cd2650_state)
- ADDRESS_MAP_UNMAP_HIGH
- //AM_RANGE(0x80, 0x84) disk i/o
- AM_RANGE(S2650_DATA_PORT,S2650_DATA_PORT) AM_READWRITE(keyin_r, beep_w)
- AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ(cass_r)
-ADDRESS_MAP_END
-
-/* Input ports */
-static INPUT_PORTS_START( cd2650 )
-INPUT_PORTS_END
-
-
-void cd2650_state::machine_reset()
-{
- m_term_data = 0x80;
- m_beep->set_frequency(950); /* guess */
- m_beep->set_state(0);
-}
-
-void cd2650_state::video_start()
-{
- m_p_chargen = memregion("chargen")->base();
-}
-
-UINT32 cd2650_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
-/* The video is unusual in that the characters in each line are spaced at 16 bytes in memory,
- thus line 1 starts at 1000, line 2 at 1001, etc. There are 16 lines of 80 characters.
- Further, the letters have bit 6 set low, thus the range is 01 to 1A.
- When the bottom of the screen is reached, it does not scroll, it just wraps around. */
-
- UINT16 offset = 0;
- UINT8 y,ra,chr,gfx;
- UINT16 sy=0,x,mem;
-
- for (y = 0; y < 16; y++)
- {
- for (ra = 0; ra < 10; ra++)
- {
- UINT16 *p = &bitmap.pix16(sy++);
-
- for (x = 0; x < 80; x++)
- {
- gfx = 0;
- if ((ra) && (ra < 9))
- {
- mem = offset + y + (x<<4);
-
- if (mem > 0x4ff)
- mem -= 0x500;
-
- chr = m_p_videoram[mem] & 0x3f;
-
- gfx = m_p_chargen[(BITSWAP8(chr,7,6,2,1,0,3,4,5)<<3) | (ra-1) ];
- }
-
- /* Display a scanline of a character */
- *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);
- }
- }
- }
- return 0;
-}
-
-/* F4 Character Displayer */
-static const gfx_layout cd2650_charlayout =
-{
- 8, 8, /* 8 x 8 characters */
- 192, /* 64 characters in char.rom + 128 characters in char2.rom */
- 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( cd2650 )
- GFXDECODE_ENTRY( "chargen", 0x0000, cd2650_charlayout, 0, 1 )
-GFXDECODE_END
-
-WRITE8_MEMBER( cd2650_state::kbd_put )
-{
- if (data)
- m_term_data = data;
-}
-
-QUICKLOAD_LOAD_MEMBER( cd2650_state, cd2650 )
-{
- int i, result = IMAGE_INIT_FAIL;
-
- int quick_length = image.length();
- if (quick_length < 0x1500)
- {
- image.seterror(IMAGE_ERROR_INVALIDIMAGE, "File too short");
- image.message(" File too short");
- }
- else
- if (quick_length > 0x8000)
- {
- image.seterror(IMAGE_ERROR_INVALIDIMAGE, "File too long");
- image.message(" File too long");
- }
- else
- {
- dynamic_buffer quick_data(quick_length);
- int read_ = image.fread( &quick_data[0], quick_length);
- if (read_ != quick_length)
- {
- image.seterror(IMAGE_ERROR_INVALIDIMAGE, "Cannot read the file");
- image.message(" Cannot read the file");
- }
- else
- if (quick_data[0] != 0x40)
- {
- image.seterror(IMAGE_ERROR_INVALIDIMAGE, "Invalid header");
- image.message(" Invalid header");
- }
- else
- {
- int exec_addr = quick_data[1] * 256 + quick_data[2];
-
- if (exec_addr >= quick_length)
- {
- image.seterror(IMAGE_ERROR_INVALIDIMAGE, "Exec address beyond end of file");
- image.message(" Exec address beyond end of file");
- }
- else
- {
- // do not overwite system area (17E0-17FF) otherwise chess3 has problems
- read_ = 0x17e0;
- if (quick_length < 0x17e0)
- read_ = quick_length;
-
- for (i = 0x1500; i < read_; i++)
- m_p_videoram[i-0x1000] = quick_data[i];
-
- if (quick_length > 0x17ff)
- for (i = 0x1800; i < quick_length; i++)
- m_p_videoram[i-0x1000] = quick_data[i];
-
- /* display a message about the loaded quickload */
- image.message(" Quickload: size=%04X : exec=%04X",quick_length,exec_addr);
-
- // Start the quickload
- m_maincpu->set_state_int(S2650_PC, exec_addr);
-
- result = IMAGE_INIT_PASS;
- }
- }
- }
-
- return result;
-}
-
-static MACHINE_CONFIG_START( cd2650, cd2650_state )
- /* basic machine hardware */
- MCFG_CPU_ADD("maincpu",S2650, XTAL_1MHz)
- MCFG_CPU_PROGRAM_MAP(cd2650_mem)
- MCFG_CPU_IO_MAP(cd2650_io)
- MCFG_S2650_FLAG_HANDLER(WRITELINE(cd2650_state, cass_w))
-
- /* 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(cd2650_state, screen_update)
- MCFG_SCREEN_SIZE(640, 160)
- MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 159)
- MCFG_SCREEN_PALETTE("palette")
- MCFG_GFXDECODE_ADD("gfxdecode", "palette", cd2650)
- MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
-
- /* quickload */
- MCFG_QUICKLOAD_ADD("quickload", cd2650_state, cd2650, "pgm", 1)
-
- /* Sound */
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
- MCFG_SOUND_ADD("beeper", BEEP, 0)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
-
- /* Devices */
- MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0)
- MCFG_GENERIC_KEYBOARD_CB(WRITE8(cd2650_state, kbd_put))
- MCFG_CASSETTE_ADD( "cassette" )
-MACHINE_CONFIG_END
-
-/* ROM definition */
-ROM_START( cd2650 )
- ROM_REGION( 0x0400, "roms", 0 )
- ROM_LOAD( "cd2650.rom", 0x0000, 0x0400, CRC(5397328e) SHA1(7106fdb60e1ad2bc5e8e45527f348c23296e8d6a))
-
- ROM_REGION( 0x0600, "chargen", 0 )
- ROM_LOAD( "char.rom", 0x0000, 0x0200, CRC(9b75db2a) SHA1(4367c01afa503d7cba0c38078fde0b95392c6c2c))
- ROM_LOAD_OPTIONAL( "char2.rom", 0x0200, 0x0400, CRC(b450eea8) SHA1(c1bdba52c2dc5698cad03b6b884b942a083465ed)) // not used
-
- // various unused roms found on Amigan site
- ROM_REGION( 0xc900, "user1", 0 )
- ROM_LOAD_OPTIONAL( "01a_cd_boots.bin", 0x0000, 0x0200, CRC(5336c62f) SHA1(e94cf7be01ea806ff7c7b90aee1a4e88f4f1ba9f))
- ROM_LOAD_OPTIONAL( "01a_cd_dos.bin", 0x0200, 0x2000, CRC(3f177cdd) SHA1(01afd77ad2f065158cbe032aa26682cb20afe7d8))
- ROM_LOAD_OPTIONAL( "01a_cd_pop.bin", 0x2200, 0x1000, CRC(d8f44f11) SHA1(605ab5a045290fa5b99ff4fc8fbfa2a3f202578f))
- ROM_LOAD_OPTIONAL( "01b_cd_alp.bin", 0x3200, 0x2a00, CRC(b05568bb) SHA1(29e74633c0cd731c0be25313288cfffdae374236))
- ROM_LOAD_OPTIONAL( "01b_cd_basic.bin", 0x5c00, 0x3b00, CRC(0cf1e3d8) SHA1(3421e679c238aeea49cd170b34a6f344da4770a6))
- ROM_LOAD_OPTIONAL( "01b_cd_mon_m.bin", 0x9700, 0x0400, CRC(f6f19c08) SHA1(1984d85d57fc2a6c5a3bd51fbc58540d7129a0ae))
- ROM_LOAD_OPTIONAL( "01b_cd_mon_o.bin", 0x9b00, 0x0400, CRC(9d40b4dc) SHA1(35cffcbd983b7b37c878a15af44100568d0659d1))
- ROM_LOAD_OPTIONAL( "02b_cd_alp.bin", 0x9f00, 0x2a00, CRC(a66b7f32) SHA1(2588f9244b0ec6b861dcebe666d37d3fa88dd043))
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1977, cd2650, 0, 0, cd2650, cd2650, driver_device, 0, "Central Data", "CD 2650", 0 )