diff options
Diffstat (limited to 'src/mame/drivers/ac1.cpp')
-rw-r--r-- | src/mame/drivers/ac1.cpp | 228 |
1 files changed, 205 insertions, 23 deletions
diff --git a/src/mame/drivers/ac1.cpp b/src/mame/drivers/ac1.cpp index d3af6fd4491..91e0c8c691c 100644 --- a/src/mame/drivers/ac1.cpp +++ b/src/mame/drivers/ac1.cpp @@ -19,18 +19,141 @@ ****************************************************************************/ #include "emu.h" -#include "includes/ac1.h" - #include "cpu/z80/z80.h" #include "imagedev/cassette.h" #include "machine/z80pio.h" +#include "machine/z80ctc.h" #include "screen.h" #include "speaker.h" +#include "sound/spkrdev.h" +#include "emupal.h" + +class ac1_state : public driver_device +{ +public: + ac1_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) + , m_cassette(*this, "cassette") + , m_maincpu(*this, "maincpu") + , m_vram(*this, "videoram") + , m_gfxdecode(*this, "gfxdecode") + , m_palette(*this, "palette") + , m_speaker(*this, "speaker") + , m_io_line(*this, "LINE.%u", 0U) + { } + + void ac1(machine_config &config); + void ac1_32(machine_config &config); + void ac1scch(machine_config &config); + +private: + u32 screen_update_ac1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + u32 screen_update_ac1_32(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + u8 ac1_port_b_r(); + u8 ac1_port_a_r(); + void ac1_port_a_w(u8 data); + void ac1_port_b_w(u8 data); + + void ac1_32_mem(address_map &map); + void ac1_io(address_map &map); + void ac1scch_io(address_map &map); + void ac1_mem(address_map &map); + + required_device<cassette_image_device> m_cassette; + required_device<cpu_device> m_maincpu; + required_shared_ptr<u8> m_vram; + required_device<gfxdecode_device> m_gfxdecode; + required_device<palette_device> m_palette; + required_device<speaker_sound_device> m_speaker; + required_ioport_array<7> m_io_line; +}; + + +u8 ac1_state::ac1_port_b_r() +{ + u8 data = 0x7f; + if (m_cassette->input() > 0.03) + data |= 0x80; -static GFXDECODE_START( gfx_ac1 ) - GFXDECODE_ENTRY( "gfx1", 0x0000, ac1_charlayout, 0, 1 ) -GFXDECODE_END + return data; +} + +#define BNOT(x) ((x) ? 0 : 1) + +u8 ac1_state::ac1_port_a_r() +{ + u8 line0 = m_io_line[0]->read(); + u8 line1 = m_io_line[1]->read(); + u8 line2 = m_io_line[2]->read(); + u8 line3 = m_io_line[3]->read(); + u8 line4 = m_io_line[4]->read(); + u8 line5 = m_io_line[5]->read(); + u8 line6 = m_io_line[6]->read(); + + u8 SH = BNOT(BIT(line6,0)); + u8 CTRL = BNOT(BIT(line6,1)); + u8 SPACE = BIT(line6,2); + u8 ENTER = BIT(line6,3); + u8 BACK = BIT(line6,4); + + u8 all = line0 | line1 | line2 | line3 | line4 | line5; + u8 s1 = BNOT(BIT(all,0));u8 z1 = (line0 !=0) ? 0 : 1; + u8 s2 = BNOT(BIT(all,1));u8 z2 = (line1 !=0) ? 0 : 1; + u8 s3 = BNOT(BIT(all,2));u8 z3 = (line2 !=0) ? 0 : 1; + u8 s4 = BNOT(BIT(all,3));u8 z4 = (line3 !=0) ? 0 : 1; + u8 s5 = BNOT(BIT(all,4));u8 z5 = (line4 !=0) ? 0 : 1; + u8 s6 = BNOT(BIT(all,5));u8 z6 = (line5 !=0) ? 0 : 1; + u8 s7 = BNOT(BIT(all,6)); + u8 s8 = BNOT(BIT(all,7)); + u8 tast,td0,td1,td2,td3,td4,td5,td6,dg5; + + /* Additional double keys */ + if (SPACE) { + z1 = 0; s1 = 0; SH = 0; + } + if (ENTER) { + z4 = 0; s6 = 0; CTRL = 0; + } + if (BACK) { + z4 = 0; s1 = 0; CTRL = 0; + } + + tast = BNOT(s1 & s2 & s3 & s4 & s5 &s6 & s7 & s8); + td0 = BNOT(s2 & s4 & s6 & s8); + td1 = BNOT(s3 & s4 & s7 & s8); + td2 = BNOT(s5 & s6 & s7 & s8); + td3 = BNOT(z2 & z4 & z6); + td4 = BNOT(BNOT(BNOT(z1 & z2) & SH) & z5 & z6); + dg5 = BNOT(z3 & z4 & z5 & z6); + td5 = BNOT(BNOT(dg5 & BNOT(SH)) & z1 & z2); + td6 = (dg5 & CTRL); + return td0 + (td1 << 1) +(td2 << 2) +(td3 << 3) +(td4 << 4) +(td5 << 5) +(td6 << 6) +(tast << 7); +} + +void ac1_state::ac1_port_a_w(u8 data) +{ +} + +void ac1_state::ac1_port_b_w(u8 data) +{ + /* + + bit description + + 0 + 1 RTTY receive + 2 RTTY transmit + 3 RTTY PTT + 4 + 5 + 6 cassette out + 7 cassette in + + */ + m_speaker->level_w(BIT(data, 0)); + m_cassette->output(BIT(data, 6) ? -1.0 : +1.0); +} /* Address maps */ void ac1_state::ac1_mem(address_map &map) @@ -38,23 +161,29 @@ void ac1_state::ac1_mem(address_map &map) map.unmap_value_high(); map(0x0000, 0x07ff).rom(); // Monitor map(0x0800, 0x0fff).rom(); // BASIC - map(0x1000, 0x17ff).ram(); // Video RAM - map(0x1800, 0x1fff).ram(); // RAM + map(0x1000, 0x17ff).ram().share("videoram"); + map(0x1800, 0x1fff).ram(); } void ac1_state::ac1_32_mem(address_map &map) { - map.unmap_value_high(); - map(0x0000, 0x07ff).rom(); // Monitor - map(0x0800, 0x0fff).rom(); // BASIC - map(0x1000, 0x17ff).ram(); // Video RAM - map(0x1800, 0xffff).ram(); // RAM + ac1_mem(map); + map(0x1800, 0xffff).ram(); } void ac1_state::ac1_io(address_map &map) { map.global_mask(0xff); - map(0x04, 0x07).rw("z80pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write)); + map(0x00, 0x03).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); // on the board, but ignored by standard bios + map(0x04, 0x07).rw("pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write)); +} + +void ac1_state::ac1scch_io(address_map &map) +{ + map.global_mask(0xff); + ac1_io(map); + map(0x08, 0x0b).rw("pio2", FUNC(z80pio_device::read), FUNC(z80pio_device::write)); + // more... } /* Input ports */ @@ -127,7 +256,40 @@ static INPUT_PORTS_START( ac1 ) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) INPUT_PORTS_END -/* Machine driver */ + +const gfx_layout charlayout = +{ + 6, 8, /* 6x8 characters */ + 256, /* 256 characters */ + 1, /* 1 bits per pixel */ + {0}, /* no bitplanes; 1 bit per pixel */ + {7, 6, 5, 4, 3, 2}, + {0 * 8, 1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8}, + 8*8 /* size of one char */ +}; + +static GFXDECODE_START( gfx_ac1 ) + GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout, 0, 1 ) +GFXDECODE_END + +u32 ac1_state::screen_update_ac1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + for (u8 y = 0; y < 16; y++ ) + for (u8 x = 0; x < 64; x++ ) + m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, m_vram[x + y*64], 0, 0, 0, 63*6-x*6, 15*8-y*8); + + return 0; +} + +u32 ac1_state::screen_update_ac1_32(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + for (u8 y = 0; y < 32; y++ ) + for (u8 x = 0; x < 64; x++ ) + m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, m_vram[x + y*64], 0, 0, 0, 63*6-x*6, 31*8-y*8); + + return 0; +} + void ac1_state::ac1(machine_config &config) { /* basic machine hardware */ @@ -135,13 +297,15 @@ void ac1_state::ac1(machine_config &config) m_maincpu->set_addrmap(AS_PROGRAM, &ac1_state::ac1_mem); m_maincpu->set_addrmap(AS_IO, &ac1_state::ac1_io); - z80pio_device& pio(Z80PIO(config, "z80pio", XTAL(8'000'000)/4)); + z80pio_device& pio(Z80PIO(config, "pio", XTAL(8'000'000)/4)); pio.in_pa_callback().set(FUNC(ac1_state::ac1_port_a_r)); pio.out_pa_callback().set(FUNC(ac1_state::ac1_port_a_w)); pio.in_pb_callback().set(FUNC(ac1_state::ac1_port_b_r)); pio.out_pb_callback().set(FUNC(ac1_state::ac1_port_b_w)); - /* video hardware */ + Z80CTC(config, "ctc", 8'000'000 / 4); // all connections go external + + // 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 */ @@ -154,7 +318,9 @@ void ac1_state::ac1(machine_config &config) PALETTE(config, m_palette, palette_device::MONOCHROME); + // sound hardware SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50); CASSETTE(config, m_cassette); m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED); @@ -173,15 +339,26 @@ void ac1_state::ac1_32(machine_config &config) screen.set_screen_update(FUNC(ac1_state::screen_update_ac1_32)); } +void ac1_state::ac1scch(machine_config &config) +{ + ac1_32(config); + m_maincpu->set_addrmap(AS_IO, &ac1_state::ac1scch_io); + + Z80PIO(config, "pio2", XTAL(8'000'000)/4); // for V24 and printer + // more... +} + + /* ROM definition */ ROM_START( ac1 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS( 0, "v1", "Version 3.1 (orig)" ) ROMX_LOAD("mon_v31_16.bin", 0x0000, 0x0800, CRC(1ba65e4d) SHA1(3382b8d03f31166a56aea49fd1ec1e82a7108300), ROM_BIOS(0)) ROM_SYSTEM_BIOS( 1, "v2", "Version 3.1 (fixed)" ) ROMX_LOAD("mon_v31_16_v2.bin", 0x0000, 0x0800, CRC(8904beb4) SHA1(db8d00a2537ac3a662e3c91e55eb2bf824a72062), ROM_BIOS(1)) // from Funkamateur 01/85 ROM_LOAD("minibasic.bin", 0x0800, 0x0800, CRC(06782639) SHA1(3fd57b3ae3f538374b0d794d8aa15d06bcaaddd8)) + ROM_REGION(0x0800, "gfx1",0) // 64 chars - U402 BM513 ROM_LOAD("u402.bin", 0x0000, 0x0200, CRC(cfb67f28) SHA1(e3a62a3a8bce0d098887e31fd16410f38832fd18)) @@ -191,10 +368,11 @@ ROM_START( ac1 ) ROM_END ROM_START( ac1_32 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD("mon_v31_32.bin", 0x0000, 0x0800, CRC(bea78b1a) SHA1(8a3e2ac2033aa0bb016be742cfea7e4b09c0813b)) // from Funkamateur 01/85 ROM_LOAD("minibasic.bin", 0x0800, 0x0800, CRC(06782639) SHA1(3fd57b3ae3f538374b0d794d8aa15d06bcaaddd8)) + ROM_REGION(0x0800, "gfx1",0) ROM_SYSTEM_BIOS( 0, "128", "128 chars" ) // 128 chars - U555 or 2708 from Funkamateur 06/86 128 including pseudo graphics @@ -206,21 +384,25 @@ ROM_START( ac1_32 ) ROM_END ROM_START( ac1scch ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS( 0, "v7", "Version 7" ) ROMX_LOAD("mon_v7.bin", 0x0000, 0x1000, CRC(fd17b0cf) SHA1(e47113025bd9dadc1522425e21703f43e584b00f), ROM_BIOS(0)) ROM_SYSTEM_BIOS( 1, "v8", "Version 8" ) ROMX_LOAD("mon_v8.bin", 0x0000, 0x1000, CRC(5af68da5) SHA1(e760d4400b9c937e7e789d52b8ec975ff253a122), ROM_BIOS(1)) ROM_SYSTEM_BIOS( 2, "v10", "Version 10" ) - ROMX_LOAD("mon_v10.bin", 0x0000, 0x1000, CRC(f8e67ecb) SHA1(7953676fc8c22824ceff464c7177e9ac0343b8ce), ROM_BIOS(2)) + ROMX_LOAD("mon_v10.bin", 0x0000, 0x1000, CRC(f8e67ecb) SHA1(7953676fc8c22824ceff464c7177e9ac0343b8ce), ROM_BIOS(2)) // not working ROM_SYSTEM_BIOS( 3, "v1088", "Version 10/88" ) ROMX_LOAD("mon_v1088.bin", 0x0000, 0x1000, CRC(bbb0a6df) SHA1(de9389e142541a8b5ff238b59e98bf571c794bef), ROM_BIOS(3)) + ROM_REGION(0x0800, "gfx1",0) ROM_LOAD("zg_scch.bin", 0x0000, 0x0800, CRC(fbfaf5da) SHA1(667568c5909e9a17675cf09dfbce2fc090c420ab)) ROM_END // Driver // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1984, ac1, 0, 0, ac1, ac1, ac1_state, init_ac1, "Frank Heyder", "Amateurcomputer AC1 Berlin", 0 ) -COMP( 1984, ac1_32, ac1, 0, ac1_32, ac1, ac1_state, init_ac1, "Frank Heyder", "Amateurcomputer AC1 Berlin (32 lines)", 0 ) -COMP( 1984, ac1scch, ac1, 0, ac1_32, ac1, ac1_state, init_ac1, "Frank Heyder", "Amateurcomputer AC1 SCCH", 0 ) +COMP( 1984, ac1, 0, 0, ac1, ac1, ac1_state, empty_init, "Frank Heyder", "Amateurcomputer AC1 Berlin", MACHINE_SUPPORTS_SAVE ) +COMP( 1984, ac1_32, ac1, 0, ac1_32, ac1, ac1_state, empty_init, "Frank Heyder", "Amateurcomputer AC1 Berlin (32 lines)", MACHINE_SUPPORTS_SAVE ) +COMP( 1984, ac1scch, ac1, 0, ac1scch, ac1, ac1_state, empty_init, "Frank Heyder", "Amateurcomputer AC1 SCCH", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) +// ac1_2010 +// ac1_2017 + |