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-rw-r--r--src/mame/drivers/comx35.cpp692
1 files changed, 0 insertions, 692 deletions
diff --git a/src/mame/drivers/comx35.cpp b/src/mame/drivers/comx35.cpp
deleted file mode 100644
index 12d4842427e..00000000000
--- a/src/mame/drivers/comx35.cpp
+++ /dev/null
@@ -1,692 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Curt Coder
-/*
-
- TODO:
-
- - tape input/output
- - PL-80 plotter
- - serial printer
- - thermal printer
-
-
- Cassette: PSAVE works, and the result can be loaded into Emma02 emulator.
- PLOAD works, but it may be necessary to unplug all slots to get
- a reliable load. This is the same as real hardware.
-
-*/
-
-#include "emu.h"
-#include "includes/comx35.h"
-#include "formats/imageutl.h"
-#include "screen.h"
-
-/***************************************************************************
- PARAMETERS
-***************************************************************************/
-
-#define LOG 0
-
-enum
-{
- COMX_TYPE_BINARY = 1,
- COMX_TYPE_BASIC,
- COMX_TYPE_BASIC_FM,
- COMX_TYPE_RESERVED,
- COMX_TYPE_DATA
-};
-
-/***************************************************************************
- IMPLEMENTATION
-***************************************************************************/
-
-/*-------------------------------------------------
- image_fread_memory - read image to memory
--------------------------------------------------*/
-
-void comx35_state::image_fread_memory(device_image_interface &image, uint16_t addr, uint32_t count)
-{
- uint8_t *ram = m_ram->pointer() + (addr - 0x4000);
-
- image.fread(ram, count);
-}
-
-/*-------------------------------------------------
- QUICKLOAD_LOAD_MEMBER( comx35_state, comx )
--------------------------------------------------*/
-
-QUICKLOAD_LOAD_MEMBER(comx35_state::quickload_cb)
-{
- address_space &program = m_maincpu->space(AS_PROGRAM);
-
- uint8_t header[16] = {0};
- int size = image.length();
-
- if (size > m_ram->size())
- {
- return image_init_result::FAIL;
- }
-
- image.fread( header, 5);
-
- if (header[1] != 'C' || header[2] != 'O' || header[3] != 'M' || header[4] != 'X' )
- {
- return image_init_result::FAIL;
- }
-
- switch (header[0])
- {
- case COMX_TYPE_BINARY:
- /*
-
- Type 1: pure machine code (i.e. no basic)
-
- Byte 0 to 4: 1 - 'COMX'
- Byte 5 and 6: Start address (1802 way; see above)
- Byte 6 and 7: End address
- Byte 9 and 10: Execution address
-
- Byte 11 to Eof, should be stored in ram from start to end; execution address
- 'xxxx' for the CALL (@xxxx) basic statement to actually run the code.
-
- */
- {
- uint16_t start_address, end_address, run_address;
-
- image.fread(header, 6);
-
- start_address = pick_integer_be(header, 0, 2);
- end_address = pick_integer_be(header, 2, 2);
- run_address = pick_integer_be(header, 4, 2);
-
- image_fread_memory(image, start_address, end_address - start_address);
-
- popmessage("Type CALL (@%04x) to start program", run_address);
- }
- break;
-
- case COMX_TYPE_BASIC:
- /*
-
- Type 2: Regular basic code or machine code followed by basic
-
- Byte 0 to 4: 2 - 'COMX'
- Byte 5 and 6: DEFUS value, to be stored on 0x4281 and 0x4282
- Byte 7 and 8: EOP value, to be stored on 0x4283 and 0x4284
- Byte 9 and 10: End array, start string to be stored on 0x4292 and 0x4293
- Byte 11 and 12: start array to be stored on 0x4294 and 0x4295
- Byte 13 and 14: EOD and end string to be stored on 0x4299 and 0x429A
-
- Byte 15 to Eof to be stored on 0x4400 and onwards
-
- Byte 0x4281-0x429A (or at least the ones above) should be set otherwise
- BASIC won't 'see' the code.
-
- */
-
- image_fread_memory(image, 0x4281, 4);
- image_fread_memory(image, 0x4292, 4);
- image_fread_memory(image, 0x4299, 2);
- image_fread_memory(image, 0x4400, size);
- break;
-
- case COMX_TYPE_BASIC_FM:
- /*
-
- Type 3: F&M basic load
-
- Not the most important! But we designed our own basic extension, you can
- find it in the F&M basic folder as F&M Basic.comx. When you run this all
- basic code should start at address 0x6700 instead of 0x4400 as from
- 0x4400-0x6700 the F&M basic stuff is loaded. So format is identical to Type
- 2 except Byte 15 to Eof should be stored on 0x6700 instead. .comx files of
- this format can also be found in the same folder as the F&M basic.comx file.
-
- */
-
- image_fread_memory(image, 0x4281, 4);
- image_fread_memory(image, 0x4292, 4);
- image_fread_memory(image, 0x4299, 2);
- image_fread_memory(image, 0x6700, size);
- break;
-
- case COMX_TYPE_RESERVED:
- /*
-
- Type 4: Incorrect DATA format, I suggest to forget this one as it won't work
- in most cases. Instead I left this one reserved and designed Type 5 instead.
-
- */
- break;
-
- case COMX_TYPE_DATA:
- /*
-
- Type 5: Data load
-
- Byte 0 to 4: 5 - 'COMX'
- Byte 5 and 6: Array length
- Byte 7 to Eof: Basic 'data'
-
- To load this first get the 'start array' from the running COMX, i.e. address
- 0x4295/0x4296. Calculate the EOD as 'start array' + length of the data (i.e.
- file length - 7). Store the EOD back on 0x4299 and ox429A. Calculate the
- 'Start String' as 'start array' + 'Array length' (Byte 5 and 6). Store the
- 'Start String' on 0x4292/0x4293. Load byte 7 and onwards starting from the
- 'start array' value fetched from 0x4295/0x4296.
-
- */
- {
- uint16_t start_array, end_array, start_string, array_length;
-
- image.fread(header, 2);
-
- array_length = pick_integer_be(header, 0, 2);
- start_array = (program.read_byte(0x4295) << 8) | program.read_byte(0x4296);
- end_array = start_array + (size - 7);
-
- program.write_byte(0x4299, end_array >> 8);
- program.write_byte(0x429a, end_array & 0xff);
-
- start_string = start_array + array_length;
-
- program.write_byte(0x4292, start_string >> 8);
- program.write_byte(0x4293, start_string & 0xff);
-
- image_fread_memory(image, start_array, size);
- }
- break;
- }
-
- return image_init_result::PASS;
-}
-
-//**************************************************************************
-// MEMORY ACCESS
-//**************************************************************************
-
-//-------------------------------------------------
-// mem_r - memory read
-//-------------------------------------------------
-
-uint8_t comx35_state::mem_r(offs_t offset)
-{
- int extrom = 1;
-
- uint8_t data = m_exp->mrd_r(offset, &extrom);
-
- if (offset < 0x4000)
- {
- if (extrom) data = m_rom->base()[offset & 0x3fff];
- }
- else if (offset >= 0x4000 && offset < 0xc000)
- {
- data = m_ram->pointer()[offset - 0x4000];
- }
- else if (offset >= 0xf400 && offset < 0xf800)
- {
- data = m_vis->char_ram_r(offset & 0x3ff);
- }
-
- return data;
-}
-
-
-//-------------------------------------------------
-// mem_w - memory write
-//-------------------------------------------------
-
-void comx35_state::mem_w(offs_t offset, uint8_t data)
-{
- m_exp->mwr_w(offset, data);
-
- if (offset >= 0x4000 && offset < 0xc000)
- {
- m_ram->pointer()[offset - 0x4000] = data;
- }
- else if (offset >= 0xf400 && offset < 0xf800)
- {
- m_vis->char_ram_w(offset & 0x3ff, data);
- }
- else if (offset >= 0xf800)
- {
- m_vis->page_ram_w(offset & 0x3ff, data);
- }
-}
-
-
-//-------------------------------------------------
-// io_r - I/O read
-//-------------------------------------------------
-
-uint8_t comx35_state::io_r(offs_t offset)
-{
- uint8_t data = m_exp->io_r(offset);
-
- if (offset == 3)
- {
- data = m_kbe->read();
- }
-
- return data;
-}
-
-
-//-------------------------------------------------
-// io_w - I/O write
-//-------------------------------------------------
-
-void comx35_state::io_w(offs_t offset, uint8_t data)
-{
- m_exp->io_w(offset, data);
-
- if (offset >= 3)
- {
- cdp1869_w(offset, data);
- }
-}
-
-
-
-//**************************************************************************
-// ADDRESS MAPS
-//**************************************************************************
-
-//-------------------------------------------------
-// ADDRESS_MAP( comx35_mem )
-//-------------------------------------------------
-
-void comx35_state::comx35_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0xffff).rw(FUNC(comx35_state::mem_r), FUNC(comx35_state::mem_w));
-}
-
-
-//-------------------------------------------------
-// ADDRESS_MAP( comx35_io )
-//-------------------------------------------------
-
-void comx35_state::comx35_io(address_map &map)
-{
- map.unmap_value_high();
- map(0x00, 0x07).rw(FUNC(comx35_state::io_r), FUNC(comx35_state::io_w));
-}
-
-
-
-//**************************************************************************
-// INPUT PORTS
-//**************************************************************************
-
-//-------------------------------------------------
-// INPUT_CHANGED_MEMBER( comx35_reset )
-//-------------------------------------------------
-
-INPUT_CHANGED_MEMBER( comx35_state::trigger_reset )
-{
- if (newval && BIT(m_d6->read(), 7))
- {
- machine_reset();
- }
-}
-
-
-//-------------------------------------------------
-// INPUT_PORTS( comx35 )
-//-------------------------------------------------
-
-static INPUT_PORTS_START( comx35 )
- PORT_START("D1")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 \xE2\x96\xA0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('@')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR(39)
-
- PORT_START("D2")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('[')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(']')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('<') PORT_CHAR('(')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('=') PORT_CHAR('^')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('>') PORT_CHAR(')')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('\\') PORT_CHAR('_')
-
- PORT_START("D3")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('?')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
-
- PORT_START("D4")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
-
- PORT_START("D5")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
-
- PORT_START("D6")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR('+')
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('-')
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('*')
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/')
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
-
- PORT_START("D7")
- PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("D8")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
- PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
- PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("D9")
- PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("D10")
- PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("D11")
- PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("MODIFIERS")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_WRITE_LINE_DEVICE_MEMBER(CDP1871_TAG, cdp1871_device, shift_w)
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CNTL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL)) PORT_WRITE_LINE_DEVICE_MEMBER(CDP1871_TAG, cdp1871_device, control_w)
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED )
-
- PORT_START("RESET")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RT") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_CHANGED_MEMBER(DEVICE_SELF, comx35_state, trigger_reset, 0)
-INPUT_PORTS_END
-
-
-
-//**************************************************************************
-// DEVICE CONFIGURATION
-//**************************************************************************
-
-//-------------------------------------------------
-// COSMAC_INTERFACE( cosmac_intf )
-//-------------------------------------------------
-
-void comx35_state::check_interrupt()
-{
- m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, m_cr1 || m_int);
-}
-
-READ_LINE_MEMBER( comx35_state::clear_r )
-{
- return m_clear;
-}
-
-READ_LINE_MEMBER( comx35_state::ef2_r )
-{
- if (m_iden)
- {
- // interrupts disabled: PAL/NTSC
- return m_vis->pal_ntsc_r();
- }
- else
- {
- // interrupts enabled: keyboard repeat
- return m_kbe->rpt_r();
- }
-}
-
-READ_LINE_MEMBER( comx35_state::ef4_r )
-{
- return m_exp->ef4_r() | ((m_cassette->input() > 0.0f) ? 1 : 0);
-}
-
-WRITE_LINE_MEMBER( comx35_state::q_w )
-{
- m_q = state;
-
- if (m_iden && state)
- {
- // enable interrupts
- m_iden = 0;
- }
-
- // cassette output
- m_cassette->output(state ? +1.0 : -1.0);
-
- // expansion bus
- m_exp->q_w(state);
-}
-
-void comx35_state::sc_w(uint8_t data)
-{
- switch (data)
- {
- case COSMAC_STATE_CODE_S0_FETCH:
- // not connected
- break;
-
- case COSMAC_STATE_CODE_S1_EXECUTE:
- // every other S1 triggers a DMAOUT request
- if (m_dma)
- {
- m_dma = 0;
-
- if (!m_iden)
- {
- m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAOUT, ASSERT_LINE);
- }
- }
- else
- {
- m_dma = 1;
- }
- break;
-
- case COSMAC_STATE_CODE_S2_DMA:
- // DMA acknowledge clears the DMAOUT request
- m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAOUT, CLEAR_LINE);
- break;
-
- case COSMAC_STATE_CODE_S3_INTERRUPT:
- // interrupt acknowledge clears the INT request
- m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, CLEAR_LINE);
- break;
- }
-}
-
-
-//-------------------------------------------------
-// COMX_EXPANSION_INTERFACE( expansion_intf )
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER( comx35_state::irq_w )
-{
- m_int = state;
- check_interrupt();
-}
-
-
-
-//**************************************************************************
-// MACHINE INITIALIZATION
-//**************************************************************************
-
-//-------------------------------------------------
-// device_timer - handler timer events
-//-------------------------------------------------
-
-void comx35_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- switch (id)
- {
- case TIMER_ID_RESET:
- m_clear = 1;
- break;
- }
-}
-
-
-//-------------------------------------------------
-// MACHINE_START( comx35 )
-//-------------------------------------------------
-
-void comx35_state::machine_start()
-{
- // clear the RAM since DOS card will go crazy if RAM is not all zeroes
- uint8_t *ram = m_ram->pointer();
- memset(ram, 0, m_ram->size());
-
- // register for state saving
- save_item(NAME(m_clear));
- save_item(NAME(m_q));
- save_item(NAME(m_iden));
- save_item(NAME(m_dma));
- save_item(NAME(m_int));
- save_item(NAME(m_prd));
- save_item(NAME(m_cr1));
-}
-
-
-void comx35_state::machine_reset()
-{
- m_exp->reset();
-
- int t = RES_K(27) * CAP_U(1) * 1000; // t = R1 * C1
-
- m_clear = 0;
- m_iden = 1;
- m_cr1 = 1;
- m_int = CLEAR_LINE;
- m_prd = CLEAR_LINE;
-
- timer_set(attotime::from_msec(t), TIMER_ID_RESET);
-}
-
-
-
-//**************************************************************************
-// MACHINE DRIVERS
-//**************************************************************************
-
-//-------------------------------------------------
-// machine_config( pal )
-//-------------------------------------------------
-
-void comx35_state::base(machine_config &config, const XTAL clock)
-{
- // basic system hardware
- CDP1802(config, m_maincpu, clock);
- m_maincpu->set_addrmap(AS_PROGRAM, &comx35_state::comx35_mem);
- m_maincpu->set_addrmap(AS_IO, &comx35_state::comx35_io);
- m_maincpu->wait_cb().set_constant(1);
- m_maincpu->clear_cb().set(FUNC(comx35_state::clear_r));
- m_maincpu->ef2_cb().set(FUNC(comx35_state::ef2_r));
- m_maincpu->ef4_cb().set(FUNC(comx35_state::ef4_r));
- m_maincpu->q_cb().set(FUNC(comx35_state::q_w));
- m_maincpu->sc_cb().set(FUNC(comx35_state::sc_w));
- m_maincpu->sc_cb().append(EXPANSION_TAG, FUNC(comx_expansion_slot_device::sc_w));
- m_maincpu->tpb_cb().set(EXPANSION_TAG, FUNC(comx_expansion_slot_device::tpb_w));
-
- // peripheral hardware
- CDP1871(config, m_kbe, cdp1869_device::CPU_CLK_PAL/8);
- m_kbe->d1_callback().set_ioport("D1");
- m_kbe->d2_callback().set_ioport("D2");
- m_kbe->d3_callback().set_ioport("D3");
- m_kbe->d4_callback().set_ioport("D4");
- m_kbe->d5_callback().set_ioport("D5");
- m_kbe->d6_callback().set_ioport("D6");
- m_kbe->d7_callback().set_ioport("D7");
- m_kbe->d8_callback().set_ioport("D8");
- m_kbe->d9_callback().set_ioport("D9");
- m_kbe->d10_callback().set_ioport("D10");
- m_kbe->d11_callback().set_ioport("D11");
- m_kbe->da_callback().set_inputline(m_maincpu, COSMAC_INPUT_LINE_EF3);
-
- QUICKLOAD(config, "quickload", "comx").set_load_callback(FUNC(comx35_state::quickload_cb));
-
- CASSETTE(config, m_cassette).set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);
-
- // expansion bus
- COMX_EXPANSION_SLOT(config, m_exp, 0, comx_expansion_cards, "eb").irq_callback().set(FUNC(comx35_state::irq_w));
-
- // internal ram
- RAM(config, m_ram).set_default_size("32K");
-
- // software lists
- SOFTWARE_LIST(config, "flop_list").set_original("comx35_flop");
-}
-
-void comx35_state::pal(machine_config &config)
-{
- base(config, cdp1869_device::CPU_CLK_PAL);
- comx35_pal_video(config);
-}
-
-void comx35_state::ntsc(machine_config &config)
-{
- base(config, cdp1869_device::CPU_CLK_NTSC);
- comx35_ntsc_video(config);
-}
-
-
-
-//**************************************************************************
-// ROMS
-//**************************************************************************
-
-//-------------------------------------------------
-// ROM( comx35p )
-//-------------------------------------------------
-
-ROM_START( comx35p )
- ROM_REGION( 0x4000, CDP1802_TAG, 0 )
- ROM_DEFAULT_BIOS( "basic100" )
- ROM_SYSTEM_BIOS( 0, "basic100", "COMX BASIC V1.00" )
- ROMX_LOAD( "comx_10.u21", 0x0000, 0x4000, CRC(68d0db2d) SHA1(062328361629019ceed9375afac18e2b7849ce47), ROM_BIOS(0) )
- ROM_SYSTEM_BIOS( 1, "basic101", "COMX BASIC V1.01" )
- ROMX_LOAD( "comx_11.u21", 0x0000, 0x4000, CRC(609d89cd) SHA1(799646810510d8236fbfafaff7a73d5170990f16), ROM_BIOS(1) )
-ROM_END
-
-
-//-------------------------------------------------
-// ROM( comx35n )
-//-------------------------------------------------
-
-#define rom_comx35n rom_comx35p
-
-
-
-//**************************************************************************
-// SYSTEM DRIVERS
-//**************************************************************************
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1983, comx35p, 0, 0, pal, comx35, comx35_state, empty_init, "Comx World Operations Ltd", "COMX 35 (PAL)", MACHINE_IMPERFECT_SOUND )
-COMP( 1983, comx35n, comx35p, 0, ntsc, comx35, comx35_state, empty_init, "Comx World Operations Ltd", "COMX 35 (NTSC)", MACHINE_IMPERFECT_SOUND )