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Diffstat (limited to 'src/mame/drivers/altos5.cpp')
-rw-r--r--src/mame/drivers/altos5.cpp459
1 files changed, 0 insertions, 459 deletions
diff --git a/src/mame/drivers/altos5.cpp b/src/mame/drivers/altos5.cpp
deleted file mode 100644
index fdd74c31a5b..00000000000
--- a/src/mame/drivers/altos5.cpp
+++ /dev/null
@@ -1,459 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/***************************************************************************
-
- Altos 5-15
-
- ToDo:
- - When running MP/M, dir command crashes the system
-
-****************************************************************************/
-
-#include "emu.h"
-#include "bus/rs232/rs232.h"
-#include "cpu/z80/z80.h"
-#include "imagedev/floppy.h"
-#include "machine/z80daisy.h"
-#include "machine/z80ctc.h"
-#include "machine/z80pio.h"
-#include "machine/z80sio.h"
-#include "machine/z80dma.h"
-#include "machine/wd_fdc.h"
-#include "machine/clock.h"
-#include "softlist.h"
-
-#include "imagedev/snapquik.h"
-
-
-class altos5_state : public driver_device
-{
-public:
- altos5_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_pio0(*this, "pio0")
- , m_dma (*this, "dma")
- , m_fdc (*this, "fdc")
- , m_p_prom(*this, "proms")
- , m_floppy0(*this, "fdc:0")
- , m_floppy1(*this, "fdc:1")
- , m_bankr(*this, "bankr%d", 0)
- , m_bankw(*this, "bankw%d", 0)
- { }
-
- void altos5(machine_config &config);
-
-private:
- DECLARE_QUICKLOAD_LOAD_MEMBER(quickload_cb);
- uint8_t memory_read_byte(offs_t offset);
- void memory_write_byte(offs_t offset, uint8_t data);
- uint8_t io_read_byte(offs_t offset);
- void io_write_byte(offs_t offset, uint8_t data);
- uint8_t port08_r();
- uint8_t port09_r();
- void port08_w(uint8_t data);
- void port09_w(uint8_t data);
- void port14_w(uint8_t data);
- void setup_banks(uint8_t source);
- uint8_t convert(offs_t offset, bool state);
- DECLARE_WRITE_LINE_MEMBER(busreq_w);
- DECLARE_WRITE_LINE_MEMBER(fdc_intrq_w);
-
- void io_map(address_map &map);
- void mem_map(address_map &map);
-
- uint8_t m_port08;
- uint8_t m_port09;
- bool m_ipl;
- offs_t m_curr_bank;
- floppy_image_device *m_floppy;
- std::unique_ptr<u8[]> m_ram; // main ram 192k
- std::unique_ptr<u8[]> m_dummy; // for wrpt
- void machine_reset() override;
- void machine_start() override;
- required_device<z80_device> m_maincpu;
- required_device<z80pio_device> m_pio0;
- required_device<z80dma_device> m_dma;
- required_device<fd1797_device> m_fdc;
- required_region_ptr<u8> m_p_prom;
- required_device<floppy_connector> m_floppy0;
- required_device<floppy_connector> m_floppy1;
- required_memory_bank_array<16> m_bankr;
- required_memory_bank_array<16> m_bankw;
-};
-
-
-void altos5_state::mem_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x0fff).bankr("bankr0").bankw("bankw0");
- map(0x1000, 0x1fff).bankr("bankr1").bankw("bankw1");
- map(0x2000, 0x2fff).bankr("bankr2").bankw("bankw2");
- map(0x3000, 0x3fff).bankr("bankr3").bankw("bankw3");
- map(0x4000, 0x4fff).bankr("bankr4").bankw("bankw4");
- map(0x5000, 0x5fff).bankr("bankr5").bankw("bankw5");
- map(0x6000, 0x6fff).bankr("bankr6").bankw("bankw6");
- map(0x7000, 0x7fff).bankr("bankr7").bankw("bankw7");
- map(0x8000, 0x8fff).bankr("bankr8").bankw("bankw8");
- map(0x9000, 0x9fff).bankr("bankr9").bankw("bankw9");
- map(0xa000, 0xafff).bankr("bankr10").bankw("bankw10");
- map(0xb000, 0xbfff).bankr("bankr11").bankw("bankw11");
- map(0xc000, 0xcfff).bankr("bankr12").bankw("bankw12");
- map(0xd000, 0xdfff).bankr("bankr13").bankw("bankw13");
- map(0xe000, 0xefff).bankr("bankr14").bankw("bankw14");
- map(0xf000, 0xffff).bankr("bankr15").bankw("bankw15");
-}
-
-void altos5_state::io_map(address_map &map)
-{
- map.global_mask(0xff);
- map(0x00, 0x03).rw(m_dma, FUNC(z80dma_device::read), FUNC(z80dma_device::write));
- map(0x04, 0x07).rw(m_fdc, FUNC(fd1797_device::read), FUNC(fd1797_device::write));
- map(0x08, 0x0b).rw(m_pio0, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
- map(0x0c, 0x0f).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
- map(0x10, 0x13).rw("pio1", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
- map(0x14, 0x17).w(FUNC(altos5_state::port14_w));
- map(0x1c, 0x1f).rw("dart", FUNC(z80dart_device::ba_cd_r), FUNC(z80dart_device::ba_cd_w));
- //map(0x20, 0x23) // Hard drive
- map(0x2c, 0x2f).rw("sio", FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( altos5 )
-INPUT_PORTS_END
-
-uint8_t altos5_state::convert(offs_t offset, bool state)
-{
- uint8_t data = m_p_prom[offset];
-
- // if IPL and /A12, point at rom
- if (!state && m_ipl && !BIT(offset, 0))
- data = 0x31;
- else
- // if WPRT point at nothing
- if (state && BIT(data, 7))
- data = 0x30;
-
- // mask off wprt (no longer needed)
- // normalise bank number (4x becomes 0x; 2x and 1x are already ok)
- return data & 0x3f;
-}
-
-void altos5_state::setup_banks(uint8_t source)
-{
- offs_t offs,temp;
- // WPRT | template | dma bank / cpu bank
-
- if (source == 1) // use DMA banks only if BUSACK is asserted
- offs = ((bitswap<8>(m_port09, 0, 0, 0, 5, 1, 2, 7, 6) << 4) & 0x1f0) ^ 0x100;
- else
- offs = ((bitswap<8>(m_port09, 0, 0, 0, 5, 1, 2, 4, 3) << 4) & 0x1f0) ^ 0x100;
-
- temp = offs;
- if ((source == 2) || (temp != m_curr_bank))
- {
- for (auto &bank : m_bankr)
- bank->set_entry(convert(offs++, 0));
-
- offs = temp;
- for (auto &bank : m_bankw)
- bank->set_entry(convert(offs++, 1));
- }
-
- m_curr_bank = temp;
-}
-
-void altos5_state::machine_reset()
-{
- m_curr_bank = 0;
- m_port08 = 0;
- m_port09 = 0;
- m_ipl = 1;
- setup_banks(2);
- m_floppy = nullptr;
- m_maincpu->reset();
-}
-
-static const z80_daisy_config daisy_chain_intf[] =
-{
- { "dma" },
- { "pio0" },
- { "pio1" },
- { "ctc" },
- { "dart" },
- { "sio" },
- { nullptr }
-};
-
-
-// turns off IPL mode, removes boot rom from memory map
-void altos5_state::port14_w(uint8_t data)
-{
- m_ipl = 0;
- setup_banks(2);
-}
-
-uint8_t altos5_state::memory_read_byte(offs_t offset)
-{
- address_space& prog_space = m_maincpu->space(AS_PROGRAM);
- return prog_space.read_byte(offset);
-}
-
-void altos5_state::memory_write_byte(offs_t offset, uint8_t data)
-{
- address_space& prog_space = m_maincpu->space(AS_PROGRAM);
- prog_space.write_byte(offset, data);
-}
-
-uint8_t altos5_state::io_read_byte(offs_t offset)
-{
- address_space& prog_space = m_maincpu->space(AS_IO);
- return prog_space.read_byte(offset);
-}
-
-void altos5_state::io_write_byte(offs_t offset, uint8_t data)
-{
- address_space& prog_space = m_maincpu->space(AS_IO);
- prog_space.write_byte(offset, data);
-}
-
-WRITE_LINE_MEMBER( altos5_state::busreq_w )
-{
-// since our Z80 has no support for BUSACK, we assume it is granted immediately
- m_maincpu->set_input_line(Z80_INPUT_LINE_BUSRQ, state);
- m_dma->bai_w(state); // tell dma that bus has been granted
- setup_banks(state); // adjust banking for dma or cpu
-}
-
-/*
-d0: L = a HD is present
-d1: L = a 2nd hard drive is present
-d2: unused configuration input (must be H to skip HD boot)
-d3: selected floppy is single(L) or double sided(H)
-d7: IRQ from FDC
-*/
-uint8_t altos5_state::port08_r()
-{
- uint8_t data = m_port08 | 0x87;
- if (m_floppy)
- data |= ((uint8_t)m_floppy->twosid_r() << 3); // get number of sides
- return data;
-}
-
-/*
-d0: HD IRQ
-*/
-uint8_t altos5_state::port09_r()
-{
- return m_port09 & 0xfe;
-}
-
-/*
-d4: DDEN (H = double density)
-d5: DS (H = drive 2)
-d6: SS (H = side 2)
-*/
-void altos5_state::port08_w(uint8_t data)
-{
- m_port08 = data & 0x70;
-
- m_floppy = nullptr;
- if (BIT(data, 5))
- m_floppy = m_floppy1->get_device();
- else
- m_floppy = m_floppy0->get_device();
-
- m_fdc->set_floppy(m_floppy);
-
- if (m_floppy)
- {
- m_floppy->mon_w(0);
- m_floppy->ss_w(BIT(data, 6));
- m_fdc->dden_w(!BIT(data, 4));
- }
-}
-
-/*
-d1, 2: Memory Map template selection (0 = diag; 1 = oasis; 2 = mp/m)
-d3, 4: CPU bank select
-d5: H = Write protect of common area
-d6, 7: DMA bank select (not emulated)
-*/
-void altos5_state::port09_w(uint8_t data)
-{
- m_port09 = data;
- setup_banks(2);
-}
-
-
-/***********************************************************
-
- Quickload
-
- This loads a .COM file to address 0x100 then jumps
- there. Sometimes .COM has been renamed to .CPM to
- prevent windows going ballistic. These can be loaded
- as well.
-
-************************************************************/
-
-QUICKLOAD_LOAD_MEMBER(altos5_state::quickload_cb)
-{
- address_space& prog_space = m_maincpu->space(AS_PROGRAM);
-
- if (quickload_size >= 0xfd00)
- return image_init_result::FAIL;
-
- setup_banks(2);
-
- /* Avoid loading a program if CP/M-80 is not in memory */
- if ((prog_space.read_byte(0) != 0xc3) || (prog_space.read_byte(5) != 0xc3))
- {
- machine_reset();
- return image_init_result::FAIL;
- }
-
- /* Load image to the TPA (Transient Program Area) */
- for (uint16_t i = 0; i < quickload_size; i++)
- {
- uint8_t data;
-
- if (image.fread( &data, 1) != 1)
- return image_init_result::FAIL;
- prog_space.write_byte(i+0x100, data);
- }
-
- /* clear out command tail */
- prog_space.write_byte(0x80, 0); prog_space.write_byte(0x81, 0);
-
- /* Roughly set SP basing on the BDOS position */
- m_maincpu->set_state_int(Z80_SP, 256 * prog_space.read_byte(7) - 300);
- m_maincpu->set_pc(0x100); // start program
-
- return image_init_result::PASS;
-}
-
-
-static void altos5_floppies(device_slot_interface &device)
-{
- device.option_add("525qd", FLOPPY_525_QD);
-}
-
-WRITE_LINE_MEMBER( altos5_state::fdc_intrq_w )
-{
- uint8_t data = m_port08 | ((uint8_t)(state) << 7);
- m_pio0->port_a_write(data);
-}
-
-void altos5_state::machine_start()
-{
- m_ram = make_unique_clear<u8[]>(0x30000);
- m_dummy = std::make_unique<u8[]>(0x1000);
-
- u8 *r = m_ram.get();
- u8 *d = m_dummy.get();
- u8 *m = memregion("maincpu")->base();
-
- for (auto &bank : m_bankr)
- bank->configure_entries(0, 48, r, 0x1000);
- for (auto &bank : m_bankw)
- bank->configure_entries(0, 48, r, 0x1000);
- for (auto &bank : m_bankr)
- bank->configure_entry(48, d);
- for (auto &bank : m_bankw)
- bank->configure_entry(48, d);
- for (auto &bank : m_bankr)
- bank->configure_entry(49, m);
- for (auto &bank : m_bankw)
- bank->configure_entry(49, m);
-
- save_pointer(NAME(m_ram), 0x30000);
- save_item(NAME(m_port08));
- save_item(NAME(m_port09));
- save_item(NAME(m_ipl));
- save_item(NAME(m_curr_bank));
-}
-
-void altos5_state::altos5(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_maincpu, 8_MHz_XTAL / 2);
- m_maincpu->set_addrmap(AS_PROGRAM, &altos5_state::mem_map);
- m_maincpu->set_addrmap(AS_IO, &altos5_state::io_map);
- m_maincpu->set_daisy_config(daisy_chain_intf);
-
- /* devices */
- Z80DMA(config, m_dma, 8_MHz_XTAL / 2);
- m_dma->out_busreq_callback().set(FUNC(altos5_state::busreq_w));
- m_dma->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- // BAO, not used
- m_dma->in_mreq_callback().set(FUNC(altos5_state::memory_read_byte));
- m_dma->out_mreq_callback().set(FUNC(altos5_state::memory_write_byte));
- m_dma->in_iorq_callback().set(FUNC(altos5_state::io_read_byte));
- m_dma->out_iorq_callback().set(FUNC(altos5_state::io_write_byte));
-
- Z80PIO(config, m_pio0, 8_MHz_XTAL / 2);
- m_pio0->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- m_pio0->in_pa_callback().set(FUNC(altos5_state::port08_r));
- m_pio0->out_pa_callback().set(FUNC(altos5_state::port08_w));
- m_pio0->in_pb_callback().set(FUNC(altos5_state::port09_r));
- m_pio0->out_pb_callback().set(FUNC(altos5_state::port09_w));
-
- z80pio_device& pio1(Z80PIO(config, "pio1", 8_MHz_XTAL / 2));
- pio1.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
-
- z80dart_device& dart(Z80DART(config, "dart", 8_MHz_XTAL / 2));
- // Channel A - console #3
- // Channel B - printer
- dart.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
-
- z80sio_device& sio(Z80SIO(config, "sio", 8_MHz_XTAL / 2));
- // Channel A - console #2
- // WRDY connects to (altos5_state, fdc_intrq_w)
- // Channel B - console #1
- sio.out_txdb_callback().set("rs232", FUNC(rs232_port_device::write_txd));
- sio.out_dtrb_callback().set("rs232", FUNC(rs232_port_device::write_dtr));
- sio.out_rtsb_callback().set("rs232", FUNC(rs232_port_device::write_rts));
- sio.out_int_callback().set_inputline("maincpu", INPUT_LINE_IRQ0);
-
- z80ctc_device &ctc(Z80CTC(config, "ctc", 8_MHz_XTAL / 2));
- ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- ctc.set_clk<0>(8_MHz_XTAL / 4); // 2MHz
- ctc.set_clk<1>(8_MHz_XTAL / 4); // 2MHz
- ctc.set_clk<2>(8_MHz_XTAL / 4); // 2MHz
- ctc.zc_callback<0>().set("sio", FUNC(z80sio_device::rxtxcb_w)); // SIO Ch B
- ctc.zc_callback<1>().set("dart", FUNC(z80dart_device::txca_w)); // Z80DART Ch A, SIO Ch A
- ctc.zc_callback<1>().append("dart", FUNC(z80dart_device::rxca_w));
- ctc.zc_callback<1>().append("sio", FUNC(z80sio_device::txca_w));
- ctc.zc_callback<1>().append("sio", FUNC(z80sio_device::rxca_w));
- ctc.zc_callback<2>().set("dart", FUNC(z80dart_device::rxtxcb_w)); // Z80DART Ch B
-
- rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal"));
- rs232.rxd_handler().set("sio", FUNC(z80sio_device::rxb_w));
- rs232.dcd_handler().set("sio", FUNC(z80sio_device::dcdb_w));
- rs232.cts_handler().set("sio", FUNC(z80sio_device::ctsb_w));
-
- FD1797(config, m_fdc, 8_MHz_XTAL / 8);
- m_fdc->intrq_wr_callback().set(FUNC(altos5_state::fdc_intrq_w));
- m_fdc->drq_wr_callback().set(m_dma, FUNC(z80dma_device::rdy_w));
- FLOPPY_CONNECTOR(config, "fdc:0", altos5_floppies, "525qd", floppy_image_device::default_floppy_formats).enable_sound(true);
- FLOPPY_CONNECTOR(config, "fdc:1", altos5_floppies, "525qd", floppy_image_device::default_floppy_formats).enable_sound(true);
-
- SOFTWARE_LIST(config, "flop_list").set_original("altos5");
- QUICKLOAD(config, "quickload", "com,cpm", attotime::from_seconds(3)).set_load_callback(FUNC(altos5_state::quickload_cb));
-}
-
-
-/* ROM definition */
-ROM_START( altos5 )
- ROM_REGION( 0x1000, "maincpu", 0 )
- ROM_LOAD("2732.bin", 0x0000, 0x1000, CRC(15fdc7eb) SHA1(e15bdf5d5414ad56f8c4bb84edc6f967a5f01ba9)) // bios
-
- ROM_REGION( 0x200, "proms", 0 )
- ROM_LOAD("82s141.bin", 0x0000, 0x0200, CRC(35c8078c) SHA1(dce24374bfcc5d23959e2c03485d82a119c0c3c9)) // banking control
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1982, altos5, 0, 0, altos5, altos5, altos5_state, empty_init, "Altos", "Altos 5-15", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )