// license:BSD-3-Clause // copyright-holders:Carl // Commodore PC 10 / PC 20 / PC 30 #include "emu.h" #include "cpu/i86/i86.h" #include "machine/genpc.h" #include "machine/nvram.h" #include "machine/pckeybrd.h" #include "coreutil.h" class compc_state : public driver_device { public: compc_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_mb(*this, "mb"), m_keyboard(*this, "pc_keyboard") { } required_device m_maincpu; required_device m_mb; required_device m_keyboard; void machine_reset() override; DECLARE_WRITE8_MEMBER(pioiii_w); DECLARE_READ8_MEMBER(pioiii_r); DECLARE_WRITE8_MEMBER(pio_w); DECLARE_READ8_MEMBER(pio_r); void compc(machine_config &config); void pc10iii(machine_config &config); void compc_io(address_map &map); void compc_map(address_map &map); void compciii_io(address_map &map); private: u8 m_portb, m_dips; }; void compc_state::machine_reset() { m_portb = 0; m_dips = 0; } WRITE8_MEMBER(compc_state::pio_w) { switch (offset) { case 1: m_portb = data; m_mb->m_pit8253->write_gate2(BIT(data, 0)); m_mb->pc_speaker_set_spkrdata(BIT(data, 1)); m_keyboard->enable(BIT(data, 6)); if(data & 0x80) m_mb->m_pic8259->ir1_w(0); break; } } READ8_MEMBER(compc_state::pio_r) { int data = 0; switch (offset) { case 0: data = m_keyboard->read(space, 0); break; case 1: data = m_portb; break; case 2: if(BIT(m_portb, 3)) { /* read hi nibble of S2 */ data = (ioport("DSW0")->read() >> 4) & 0x0f; } else { /* read lo nibble of S2 */ data = ioport("DSW0")->read() & 0x0f; } if(m_mb->pit_out2()) data |= 0x20; break; } return data; } WRITE8_MEMBER(compc_state::pioiii_w) { switch (offset) { case 1: m_portb = data; m_mb->m_pit8253->write_gate2(BIT(data, 0)); m_mb->pc_speaker_set_spkrdata(BIT(data, 1)); m_keyboard->enable(BIT(data, 6)); if(data & 0x80) m_mb->m_pic8259->ir1_w(0); break; case 2: m_dips = (data & ~0x30) | ioport("DSW0")->read(); break; } } READ8_MEMBER(compc_state::pioiii_r) { int data = 0; switch (offset) { case 0: data = m_keyboard->read(space, 0); break; case 1: data = m_portb; break; case 2: if(!BIT(m_portb, 2)) data = (m_dips >> 4) & 0x0f; else data = m_dips & 0x0f; if(m_mb->pit_out2()) data |= 0x30; break; } return data; } static INPUT_PORTS_START(compciii) PORT_START("DSW0") /* IN1 */ PORT_DIPNAME( 0x30, 0x30, "Graphics adapter") PORT_DIPSETTING( 0x00, "EGA/VGA" ) PORT_DIPSETTING( 0x10, "Color 40x25" ) PORT_DIPSETTING( 0x20, "Color 80x25" ) PORT_DIPSETTING( 0x30, "Monochrome" ) PORT_INCLUDE(pc_keyboard) INPUT_PORTS_END static INPUT_PORTS_START(compc) PORT_START("DSW0") /* IN1 */ PORT_DIPNAME( 0xc0, 0x40, "Number of floppy drives") PORT_DIPSETTING( 0x00, "1" ) PORT_DIPSETTING( 0x40, "2" ) PORT_DIPSETTING( 0x80, "3" ) PORT_DIPSETTING( 0xc0, "4" ) PORT_DIPNAME( 0x30, 0x30, "Graphics adapter") PORT_DIPSETTING( 0x00, "EGA/VGA" ) PORT_DIPSETTING( 0x10, "Color 40x25" ) PORT_DIPSETTING( 0x20, "Color 80x25" ) PORT_DIPSETTING( 0x30, "Monochrome" ) PORT_DIPNAME( 0x0c, 0x0c, "RAM banks") PORT_DIPSETTING( 0x00, "1 - 16/ 64/256K" ) PORT_DIPSETTING( 0x04, "2 - 32/128/512K" ) PORT_DIPSETTING( 0x08, "3 - 48/192/576K" ) PORT_DIPSETTING( 0x0c, "4 - 64/256/640K" ) PORT_DIPNAME( 0x02, 0x00, "8087 installed") PORT_DIPSETTING( 0x00, DEF_STR(No) ) PORT_DIPSETTING( 0x02, DEF_STR(Yes) ) PORT_DIPNAME( 0x01, 0x01, "Boot from floppy") PORT_DIPSETTING( 0x01, DEF_STR(Yes) ) PORT_DIPSETTING( 0x00, DEF_STR(No) ) PORT_INCLUDE(pc_keyboard) INPUT_PORTS_END void compc_state::compc_map(address_map &map) { map.unmap_value_high(); map(0xf0000, 0xfffff).rom().region("bios", 0); } void compc_state::compc_io(address_map &map) { map.unmap_value_high(); map(0x0000, 0x00ff).m(m_mb, FUNC(pc_noppi_mb_device::map)); map(0x0060, 0x0063).rw(FUNC(compc_state::pio_r), FUNC(compc_state::pio_w)); } void compc_state::compciii_io(address_map &map) { map.unmap_value_high(); map(0x0000, 0x00ff).m(m_mb, FUNC(pc_noppi_mb_device::map)); map(0x0060, 0x0063).rw(FUNC(compc_state::pioiii_r), FUNC(compc_state::pioiii_w)); } MACHINE_CONFIG_START(compc_state::compc) MCFG_DEVICE_ADD("maincpu", I8088, 4772720*2) MCFG_DEVICE_PROGRAM_MAP(compc_map) MCFG_DEVICE_IO_MAP(compc_io) MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("mb:pic8259", pic8259_device, inta_cb) MCFG_PCNOPPI_MOTHERBOARD_ADD("mb", "maincpu") MCFG_DEVICE_REMOVE("mb:pit8253") fe2010_pit_device &pit(FE2010_PIT(config, "mb:pit8253", 0)); pit.set_clk<0>(XTAL(14'318'181)/12.0); /* heartbeat IRQ */ pit.out_handler<0>().set("mb:pic8259", FUNC(pic8259_device::ir0_w)); pit.set_clk<1>(XTAL(14'318'181)/12.0); /* dram refresh */ pit.out_handler<1>().set(m_mb, FUNC(ibm5160_mb_device::pc_pit8253_out1_changed)); pit.set_clk<2>(XTAL(14'318'181)/12.0); /* pio port c pin 4, and speaker polling enough */ pit.out_handler<2>().set(m_mb, FUNC(ibm5160_mb_device::pc_pit8253_out2_changed)); // FIXME: determine ISA bus clock MCFG_DEVICE_ADD("isa1", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "mda", false) MCFG_DEVICE_ADD("isa2", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "lpt", false) MCFG_DEVICE_ADD("isa3", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "com", false) MCFG_DEVICE_ADD("isa4", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "fdc_xt", false) MCFG_PC_KEYB_ADD("pc_keyboard", WRITELINE("mb:pic8259", pic8259_device, ir1_w)) /* internal ram */ RAM(config, RAM_TAG).set_default_size("256K").set_extra_options("512K, 640K"); /* software lists */ MCFG_SOFTWARE_LIST_ADD("disk_list", "ibm5150") MACHINE_CONFIG_END MACHINE_CONFIG_START(compc_state::pc10iii) compc(config); MCFG_DEVICE_MODIFY("maincpu") MCFG_DEVICE_IO_MAP(compciii_io) MACHINE_CONFIG_END ROM_START(compc10) ROM_REGION(0x10000, "bios", 0) ROM_DEFAULT_BIOS("v205") ROM_SYSTEM_BIOS(0, "v203", "v2.03") ROMX_LOAD("380258-03", 0xc000, 0x4000, CRC(fbe53865) SHA1(a6d6433c055d1c328f71403a2ed2fd5908c23d40), ROM_BIOS(0)) ROM_SYSTEM_BIOS(1, "v205", "v2.05") ROMX_LOAD("380258-04", 0xc000, 0x4000, CRC(e61084da) SHA1(dfb360a6ec6cb1250d8a6243f12a0d702e8479cb), ROM_BIOS(1)) ROM_END // Note: Commodore PC20-III, PC10-III and COLT share the same BIOS ROM_START(pc10iii) ROM_DEFAULT_BIOS("v441") ROM_SYSTEM_BIOS(0, "v435", "v4.35") ROM_SYSTEM_BIOS(1, "v435c", "v4.35c") ROM_SYSTEM_BIOS(2, "v436", "v4.36") ROM_SYSTEM_BIOS(3, "v436b", "v4.36b") ROM_SYSTEM_BIOS(4, "v436c", "v4.36c") ROM_SYSTEM_BIOS(5, "v438", "v4.38") ROM_SYSTEM_BIOS(6, "v439", "v4.39") ROM_SYSTEM_BIOS(7, "v440", "v4.40") ROM_SYSTEM_BIOS(8, "v441", "v4.41") ROM_REGION(0x10000, "bios", 0) ROMX_LOAD("318085-01.u201", 0x8000, 0x8000, CRC(be752d1e) SHA1(5e5e63cd6d6269816cd691602e4c4d209fe3df67), ROM_BIOS(0)) ROMX_LOAD("318085-01_pc-3_bios_4.35c.bin", 0x8000, 0x8000, CRC(adbc4ab7) SHA1(c157e5bc115906705849f185e4fe8e42ab28930c), ROM_BIOS(1)) ROMX_LOAD("318085-02.u201", 0x8000, 0x8000, CRC(db0c9d04) SHA1(1314ce606840f4f78e58e5f78909e8971387f387), ROM_BIOS(2)) ROMX_LOAD("318085-03.u201", 0x8000, 0x8000, CRC(559e6b76) SHA1(cdfd4781f3520db7f5111469ebb29c10b39ab587), ROM_BIOS(3)) ROMX_LOAD("318085-04.u201", 0x8000, 0x8000, CRC(f81e67f0) SHA1(b46613cb5c6ac4beb769778bc35f81777ebe02e1), ROM_BIOS(4)) ROMX_LOAD("318085-05.u201", 0x8000, 0x8000, CRC(ae9e6a31) SHA1(853ee251cf230818c407a8d13ef060a21c90a8c1), ROM_BIOS(5)) ROMX_LOAD("318085-06.u201", 0x8000, 0x8000, CRC(1901993c) SHA1(f75060c1c442376bd42c61e74fa9eee053351791), ROM_BIOS(6)) ROMX_LOAD("318085-07.u201", 0x8000, 0x8000, CRC(505d52b0) SHA1(f717c6ab791d51f35e1c38ffbc81a44075b5f2f8), ROM_BIOS(7)) ROMX_LOAD("318085-08.u201", 0x8000, 0x8000, CRC(7e228dc8) SHA1(958dfdd637bd31c01b949fac729d6973a7e630bc), ROM_BIOS(8)) ROM_REGION(0x8000, "gfx1", 0) ROMX_LOAD("318086-01_p10c_164a.bin", 0x0000, 0x4000, CRC(ee6c27f0) SHA1(e769cc3a49a1d708bd74eb4ac85bb6ea67220d38), ROM_BIOS(0)) // came with ROM 4.35c ROMX_LOAD("318086-01_p10c_164a.bin", 0x0000, 0x4000, CRC(ee6c27f0) SHA1(e769cc3a49a1d708bd74eb4ac85bb6ea67220d38), ROM_BIOS(1)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(2)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(3)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(4)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(5)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(6)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(7)) ROMX_LOAD("318086-02.u607", 0x0000, 0x8000, CRC(b406651c) SHA1(856f58353391a74a06ebb8ec9f8333d7d69e5fd6), ROM_BIOS(8)) ROM_END // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1984, compc10, ibm5150, 0, compc, compc, compc_state, empty_init, "Commodore Business Machines", "Commodore PC 10", MACHINE_NOT_WORKING ) COMP( 1987, pc10iii, ibm5150, 0, pc10iii, compciii, compc_state, empty_init, "Commodore Business Machines", "Commodore PC-10 III", MACHINE_NOT_WORKING )