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aim65: modernised; fixed cassette; added TTY
This commit is contained in:
Robbbert
parent
d4edba4e1b
commit
00fb14971f
@ -1,26 +1,17 @@
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// license:GPL-2.0+
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// copyright-holders:Peter Trauner, Dan Boris, Dirk Best, Robbbert
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/******************************************************************************
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PeT mess@utanet.at Nov 2000pia6821_device
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Updated by Dan Boris, 3/4/2007
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PeT mess@utanet.at Nov 2000
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Updated by Dan Boris, 2000-04-03
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Rewrite in progress, Dirk Best, 2007-07-31
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Updated by Robbbert 2019-04-14
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ToDo:
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- Printer. Tried to implement this but it was not working, currently disabled.
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- Dual tape interface (done, but see bugs below)
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- Implement punchtape reader/writer and TTY keyboard
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- Implement punchtape reader/writer
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- Front panel Reset switch (switch S1)
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- Front panel Run/Step switch (switch S2)
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Bugs
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- Cassette should output data on PB7, but the bit stays High.
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- At the end of saving, both motors sometimes get turned on!
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- CA2 should switch the cassette circuits between input and output.
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It goes High on Read (correct) but doesn't go Low for Write.
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- Read of CA1 is to check the printer, but it never happens.
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- Write to CB1 should occur to activate printer's Start line, but it
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also never happens.
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- The common factor is the 6522, maybe it has problems..
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******************************************************************************/
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@ -47,17 +38,17 @@ static constexpr XTAL AIM65_CLOCK(4_MHz_XTAL / 4);
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***************************************************************************/
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/* Note: RAM is mapped dynamically in machine/aim65.c */
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void aim65_state::aim65_mem(address_map &map)
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void aim65_state::mem_map(address_map &map)
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{
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map(0x1000, 0x3fff).noprw(); /* User available expansions */
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map(0x4000, 0x7fff).rom(); /* 4 ROM sockets in 16K PROM/ROM module */
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map(0x8000, 0x9fff).noprw(); /* User available expansions */
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map(0xa000, 0xa00f).mirror(0x3f0).rw("via6522_1", FUNC(via6522_device::read), FUNC(via6522_device::write)); // user via
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map(0xa000, 0xa00f).mirror(0x3f0).rw("via1", FUNC(via6522_device::read), FUNC(via6522_device::write)); // user via
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map(0xa400, 0xa47f).m("riot", FUNC(mos6532_new_device::ram_map));
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map(0xa480, 0xa497).m("riot", FUNC(mos6532_new_device::io_map));
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map(0xa498, 0xa7ff).noprw(); /* Not available */
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map(0xa800, 0xa80f).mirror(0x3f0).rw("via6522_0", FUNC(via6522_device::read), FUNC(via6522_device::write)); // system via
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map(0xac00, 0xac03).rw("pia6821", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
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map(0xa800, 0xa80f).mirror(0x3f0).rw("via0", FUNC(via6522_device::read), FUNC(via6522_device::write)); // system via
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map(0xac00, 0xac03).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
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map(0xac04, 0xac43).ram(); /* PIA RAM */
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map(0xac44, 0xafff).noprw(); /* Not available */
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map(0xb000, 0xffff).rom(); /* 5 ROM sockets */
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@ -69,7 +60,7 @@ void aim65_state::aim65_mem(address_map &map)
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***************************************************************************/
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static INPUT_PORTS_START( aim65 )
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PORT_START("keyboard_0")
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PORT_START("KEY.0")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(32)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
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@ -79,7 +70,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_START("keyboard_1")
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PORT_START("KEY.1")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LF @") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(10) PORT_CHAR('@')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l')
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@ -89,7 +80,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_START("keyboard_2")
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PORT_START("KEY.2")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Print") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR))
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p')
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@ -99,7 +90,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(ESC))
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PORT_START("keyboard_3")
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PORT_START("KEY.3")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('-') PORT_CHAR('=')
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@ -109,7 +100,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q')
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PORT_START("keyboard_4")
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PORT_START("KEY.4")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_SHIFT_2)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_MINUS) PORT_CHAR(':') PORT_CHAR('*')
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@ -119,7 +110,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
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PORT_START("keyboard_5")
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PORT_START("KEY.5")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
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@ -129,7 +120,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(UCHAR_MAMEKEY(F3))
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PORT_START("keyboard_6")
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PORT_START("KEY.6")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(8)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
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@ -139,7 +130,7 @@ static INPUT_PORTS_START( aim65 )
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(UCHAR_MAMEKEY(F2))
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PORT_START("keyboard_7")
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PORT_START("KEY.7")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
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@ -185,59 +176,74 @@ image_init_result aim65_state::load_cart(device_image_interface &image, generic_
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return image_init_result::PASS;
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}
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// TTY terminal settings. To use, turn KB/TTY switch to TTY, reset, press DEL. All input to be in UPPERCASE.
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static DEVICE_INPUT_DEFAULTS_START( serial_term )
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DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_1200 )
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DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_1200 )
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DEVICE_INPUT_DEFAULTS( "RS232_STARTBITS", 0xff, RS232_STARTBITS_1 )
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DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_7 )
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DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_ODD )
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DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 )
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DEVICE_INPUT_DEFAULTS_END
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MACHINE_CONFIG_START(aim65_state::aim65)
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/* basic machine hardware */
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M6502(config, m_maincpu, AIM65_CLOCK); /* 1 MHz */
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m_maincpu->set_addrmap(AS_PROGRAM, &aim65_state::aim65_mem);
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m_maincpu->set_addrmap(AS_PROGRAM, &aim65_state::mem_map);
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config.set_default_layout(layout_aim65);
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/* alpha-numeric display */
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DL1416T(config, m_ds[0], u32(0));
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m_ds[0]->update().set(FUNC(aim65_state::aim65_update_ds<1>));
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m_ds[0]->update().set(FUNC(aim65_state::update_ds<1>));
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DL1416T(config, m_ds[1], u32(0));
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m_ds[1]->update().set(FUNC(aim65_state::aim65_update_ds<2>));
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m_ds[1]->update().set(FUNC(aim65_state::update_ds<2>));
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DL1416T(config, m_ds[2], u32(0));
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m_ds[2]->update().set(FUNC(aim65_state::aim65_update_ds<3>));
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m_ds[2]->update().set(FUNC(aim65_state::update_ds<3>));
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DL1416T(config, m_ds[3], u32(0));
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m_ds[3]->update().set(FUNC(aim65_state::aim65_update_ds<4>));
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m_ds[3]->update().set(FUNC(aim65_state::update_ds<4>));
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DL1416T(config, m_ds[4], u32(0));
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m_ds[4]->update().set(FUNC(aim65_state::aim65_update_ds<5>));
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m_ds[4]->update().set(FUNC(aim65_state::update_ds<5>));
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/* Sound - wave sound only */
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SPEAKER(config, "mono").front_center();
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WAVE(config, "wave", m_cassette1).add_route(ALL_OUTPUTS, "mono", 0.25);
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WAVE(config, "wave", m_cassette1).add_route(ALL_OUTPUTS, "mono", 0.1);
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WAVE(config, "wave2", m_cassette2).add_route(ALL_OUTPUTS, "mono", 0.1);
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/* other devices */
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mos6532_new_device &riot(MOS6532_NEW(config, "riot", AIM65_CLOCK));
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riot.pa_wr_callback().set(FUNC(aim65_state::aim65_riot_a_w));
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riot.pb_rd_callback().set(FUNC(aim65_state::aim65_riot_b_r));
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riot.pa_wr_callback().set([this] (u8 data) { m_riot_port_a = data; });
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riot.pb_rd_callback().set([this] () { return aim65_state::z33_pb_r(); });
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riot.irq_wr_callback().set_inputline(m_maincpu, M6502_IRQ_LINE);
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via6522_device &via0(VIA6522(config, "via6522_0", AIM65_CLOCK));
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via0.readpb_handler().set(FUNC(aim65_state::aim65_pb_r));
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VIA6522(config, m_via0, AIM65_CLOCK);
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m_via0->readpb_handler().set([this] () { return aim65_state::z32_pb_r(); });
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m_via0->writepb_handler().set([this] (u8 data) { aim65_state::z32_pb_w(data); });
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// in CA1 printer ready?
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via0.writepb_handler().set(FUNC(aim65_state::aim65_pb_w));
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// out CB1 printer start
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// out CA2 cass control (H=in)
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m_via0->ca2_handler().set([this] (bool state) { m_ca2 = state; });
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// out CB1 printer start
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//m_via0->cb1_handler().set(FUNC(aim65_state::z32_cb1_w));
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// out CB2 turn printer on
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via0.irq_handler().set_inputline("maincpu", M6502_IRQ_LINE);
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//m_via0->cb2_handler().set(FUNC(aim65_state::z32_cb2_w));
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m_via0->irq_handler().set_inputline("maincpu", M6502_IRQ_LINE);
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via6522_device &via1(VIA6522(config, "via6522_1", AIM65_CLOCK));
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via6522_device &via1(VIA6522(config, "via1", AIM65_CLOCK));
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via1.irq_handler().set_inputline("maincpu", M6502_IRQ_LINE);
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pia6821_device &pia(PIA6821(config, "pia6821", 0));
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pia.writepa_handler().set(FUNC(aim65_state::aim65_pia_a_w));
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pia.writepb_handler().set(FUNC(aim65_state::aim65_pia_b_w));
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pia6821_device &pia(PIA6821(config, "pia", 0));
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pia.writepa_handler().set([this] (u8 data) { aim65_state::u1_pa_w(data); });
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pia.writepb_handler().set([this] (u8 data) { aim65_state::u1_pb_w(data); });
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// Deck 1 can play and record
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CASSETTE(config, m_cassette1);
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m_cassette1->set_default_state(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED);
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// Deck 2 can only record
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CASSETTE(config, m_cassette2);
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m_cassette2->set_default_state(CASSETTE_RECORD | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_MUTED);
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m_cassette2->set_default_state(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED);
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/* TTY interface */
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RS232_PORT(config, m_rs232, default_rs232_devices, nullptr);
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//m_rs232->rxd_handler().set(m_via0, FUNC(via6522_device::write_pb6)); // function disabled in 6522via.cpp
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m_rs232->set_option_device_input_defaults("terminal", DEVICE_INPUT_DEFAULTS_NAME(serial_term));
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MCFG_GENERIC_SOCKET_ADD("z26", generic_plain_slot, "aim65_z26_cart")
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MCFG_GENERIC_EXTENSIONS("z26")
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@ -16,6 +16,7 @@
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#include "bus/generic/slot.h"
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#include "cpu/m6502/m6502.h"
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#include "imagedev/cassette.h"
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#include "bus/rs232/rs232.h"
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#include "machine/6522via.h"
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#include "machine/6821pia.h"
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#include "machine/mos6530n.h"
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@ -29,6 +30,10 @@ class aim65_state : public driver_device
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public:
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aim65_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_riot_port_a(0)
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, m_pb_save(0)
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, m_kb_en(true)
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, m_ca2(true)
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, m_maincpu(*this, "maincpu")
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, m_cassette1(*this, "cassette")
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, m_cassette2(*this, "cassette2")
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@ -42,6 +47,9 @@ public:
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, m_ram(*this, RAM_TAG)
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, m_ds(*this, "ds%u", 1)
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, m_digits(*this, "digit%u", 0U)
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, m_rs232(*this, "rs232")
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, m_via0(*this, "via0")
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, m_io_keyboard(*this, "KEY.%u", 0)
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{
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}
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@ -50,14 +58,13 @@ public:
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protected:
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virtual void machine_start() override;
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DECLARE_WRITE8_MEMBER(aim65_pia_a_w);
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DECLARE_WRITE8_MEMBER(aim65_pia_b_w);
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DECLARE_READ8_MEMBER(aim65_riot_b_r);
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DECLARE_WRITE8_MEMBER(aim65_riot_a_w);
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DECLARE_WRITE8_MEMBER(aim65_pb_w);
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DECLARE_READ8_MEMBER(aim65_pb_r);
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void u1_pa_w(u8 data);
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void u1_pb_w(u8 data);
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u8 z33_pb_r();
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void z32_pb_w(u8 data);
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u8 z32_pb_r();
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template <unsigned D> DECLARE_WRITE16_MEMBER(aim65_update_ds);
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template <unsigned D> DECLARE_WRITE16_MEMBER(update_ds);
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DECLARE_DEVICE_IMAGE_LOAD_MEMBER(z24_load) { return load_cart(image, m_z24, "z24"); }
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DECLARE_DEVICE_IMAGE_LOAD_MEMBER(z25_load) { return load_cart(image, m_z25, "z25"); }
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@ -69,11 +76,13 @@ protected:
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image_init_result load_cart(device_image_interface &image, generic_slot_device *slot, const char *slot_tag);
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void aim65_mem(address_map &map);
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void mem_map(address_map &map);
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private:
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uint8_t m_riot_port_a;
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uint8_t m_pb_save;
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bool m_kb_en;
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bool m_ca2;
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required_device<cpu_device> m_maincpu;
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required_device<cassette_image_device> m_cassette1;
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@ -88,6 +97,9 @@ private:
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required_device<ram_device> m_ram;
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required_device_array<dl1416_device, 5> m_ds;
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output_finder<20> m_digits;
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required_device<rs232_port_device> m_rs232;
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required_device<via6522_device> m_via0;
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required_ioport_array<8> m_io_keyboard;
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};
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||||
|
||||
|
||||
|
||||
@ -47,7 +47,7 @@
|
||||
* PB7: CU (Cursor)
|
||||
*/
|
||||
|
||||
WRITE8_MEMBER( aim65_state::aim65_pia_a_w )
|
||||
void aim65_state::u1_pa_w( u8 data )
|
||||
{
|
||||
LOG("pia a: a=%u /ce=%u,%u,%u,%u,%u /wr=%u\n",
|
||||
data & 0x03, BIT(data, 2), BIT(data, 3), BIT(data, 4), BIT(data, 5), BIT(data, 6), BIT(data, 7));
|
||||
@ -60,7 +60,7 @@ WRITE8_MEMBER( aim65_state::aim65_pia_a_w )
|
||||
}
|
||||
|
||||
|
||||
WRITE8_MEMBER( aim65_state::aim65_pia_b_w )
|
||||
void aim65_state::u1_pb_w( u8 data )
|
||||
{
|
||||
LOG("pia b: d=%02x /cu=%u\n", data & 0x7f, BIT(data, 7));
|
||||
for (required_device<dl1416_device> &ds : m_ds)
|
||||
@ -71,16 +71,16 @@ WRITE8_MEMBER( aim65_state::aim65_pia_b_w )
|
||||
}
|
||||
|
||||
|
||||
template <unsigned D> WRITE16_MEMBER( aim65_state::aim65_update_ds )
|
||||
template <unsigned D> WRITE16_MEMBER( aim65_state::update_ds )
|
||||
{
|
||||
m_digits[((D - 1) << 2) | (offset ^ 3)] = data;
|
||||
}
|
||||
|
||||
template WRITE16_MEMBER( aim65_state::aim65_update_ds<1> );
|
||||
template WRITE16_MEMBER( aim65_state::aim65_update_ds<2> );
|
||||
template WRITE16_MEMBER( aim65_state::aim65_update_ds<3> );
|
||||
template WRITE16_MEMBER( aim65_state::aim65_update_ds<4> );
|
||||
template WRITE16_MEMBER( aim65_state::aim65_update_ds<5> );
|
||||
template WRITE16_MEMBER( aim65_state::update_ds<1> );
|
||||
template WRITE16_MEMBER( aim65_state::update_ds<2> );
|
||||
template WRITE16_MEMBER( aim65_state::update_ds<3> );
|
||||
template WRITE16_MEMBER( aim65_state::update_ds<4> );
|
||||
template WRITE16_MEMBER( aim65_state::update_ds<5> );
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
@ -88,34 +88,19 @@ template WRITE16_MEMBER( aim65_state::aim65_update_ds<5> );
|
||||
******************************************************************************/
|
||||
|
||||
|
||||
READ8_MEMBER( aim65_state::aim65_riot_b_r )
|
||||
u8 aim65_state::z33_pb_r()
|
||||
{
|
||||
static const char *const keynames[] =
|
||||
{
|
||||
"keyboard_0", "keyboard_1", "keyboard_2", "keyboard_3",
|
||||
"keyboard_4", "keyboard_5", "keyboard_6", "keyboard_7"
|
||||
};
|
||||
|
||||
uint8_t row, data = 0xff;
|
||||
u8 data = 0xff;
|
||||
|
||||
/* scan keyboard rows */
|
||||
for (row = 0; row < 8; row++)
|
||||
{
|
||||
if (!BIT(m_riot_port_a, row))
|
||||
data &= ioport(keynames[row])->read();
|
||||
}
|
||||
for (u8 i = 0; i < 8; i++)
|
||||
if (!BIT(m_riot_port_a, i))
|
||||
data &= m_io_keyboard[i]->read();
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
|
||||
WRITE8_MEMBER( aim65_state::aim65_riot_a_w )
|
||||
{
|
||||
m_riot_port_a = data;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
DRIVER INIT
|
||||
***************************************************************************/
|
||||
@ -147,11 +132,11 @@ void aim65_state::machine_start()
|
||||
// Init RAM
|
||||
space.install_ram(0x0000, m_ram->size() - 1, m_ram->pointer());
|
||||
|
||||
m_pb_save = 0;
|
||||
|
||||
// Register save state
|
||||
save_item(NAME(m_riot_port_a));
|
||||
save_item(NAME(m_pb_save));
|
||||
save_item(NAME(m_kb_en));
|
||||
save_item(NAME(m_ca2));
|
||||
}
|
||||
|
||||
|
||||
@ -171,54 +156,68 @@ void aim65_state::machine_start()
|
||||
Cassette
|
||||
******************************************************************************/
|
||||
|
||||
WRITE8_MEMBER( aim65_state::aim65_pb_w )
|
||||
void aim65_state::z32_pb_w( u8 data )
|
||||
{
|
||||
/*
|
||||
d7 = cass out (both decks)
|
||||
d5 = cass2 motor
|
||||
d4 = cass1 motor
|
||||
d2 = tty out (not emulated)
|
||||
d2 = tty out
|
||||
d0/1 = printer data (not emulated)
|
||||
|
||||
There seems to be a mistake in the code. When the cassettes should both be stopped, it turns them on instead.
|
||||
*/
|
||||
|
||||
if ((data & 0x30)==0x30)
|
||||
data &= ~0x30; // fix bug with motors
|
||||
|
||||
uint8_t bits = data ^ m_pb_save;
|
||||
m_pb_save = data;
|
||||
|
||||
if (BIT(bits, 7))
|
||||
if (BIT(bits, 7) && !m_ca2)
|
||||
{
|
||||
m_cassette1->output(BIT(data, 7) ? -1.0 : +1.0);
|
||||
m_cassette2->output(BIT(data, 7) ? -1.0 : +1.0);
|
||||
if (BIT(data, 4))
|
||||
m_cassette1->output(BIT(data, 7) ? -1.0 : +1.0);
|
||||
if (BIT(data, 5))
|
||||
m_cassette2->output(BIT(data, 7) ? -1.0 : +1.0);
|
||||
}
|
||||
|
||||
if (BIT(bits, 5))
|
||||
{
|
||||
if (BIT(data, 5))
|
||||
m_cassette2->change_state(CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR);
|
||||
else
|
||||
m_cassette2->change_state(CASSETTE_MOTOR_ENABLED,CASSETTE_MASK_MOTOR);
|
||||
}
|
||||
m_cassette2->change_state(BIT(data, 5) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
|
||||
|
||||
if (BIT(bits, 4))
|
||||
{
|
||||
if (BIT(data, 4))
|
||||
m_cassette1->change_state(CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR);
|
||||
else
|
||||
m_cassette1->change_state(CASSETTE_MOTOR_ENABLED,CASSETTE_MASK_MOTOR);
|
||||
}
|
||||
m_cassette1->change_state(BIT(data, 4) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
|
||||
|
||||
if (!m_kb_en)
|
||||
m_rs232->write_txd(BIT(data, 2));
|
||||
}
|
||||
|
||||
|
||||
READ8_MEMBER( aim65_state::aim65_pb_r )
|
||||
u8 aim65_state::z32_pb_r ()
|
||||
{
|
||||
/*
|
||||
d7 = cassette in (deck 1)
|
||||
d6 = tty in (not emulated)
|
||||
d7 = cassette in
|
||||
d6 = tty in
|
||||
d3 = kb/tty switch
|
||||
*/
|
||||
|
||||
uint8_t data = ioport("switches")->read();
|
||||
data |= (m_cassette1->input() > +0.03) ? 0x80 : 0;
|
||||
data |= 0x40; // TTY must be H if not used.
|
||||
m_kb_en = BIT(data, 3);
|
||||
|
||||
if (m_ca2)
|
||||
{
|
||||
if (BIT(m_pb_save, 4))
|
||||
data |= (m_cassette1->input() > +0.03) ? 0x80 : 0;
|
||||
else
|
||||
if (BIT(m_pb_save, 5))
|
||||
data |= (m_cassette2->input() > +0.03) ? 0x80 : 0;
|
||||
}
|
||||
|
||||
if (m_kb_en)
|
||||
data |= 0x40; // TTY must be H if not used.
|
||||
else
|
||||
data |= (m_rs232->rxd_r()) ? 0x40 : 0;
|
||||
|
||||
data |= m_pb_save & 0x37;
|
||||
return data;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user