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(MESS) excalibur : added centronics printing. Marked as working. (nw)

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This commit is contained in:
Robert 2014-12-24 00:53:28 +11:00
parent de72dac0d9
commit 79fb6dd7e0
1 changed files with 21 additions and 10 deletions
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31
src/mess/drivers/excali64.c
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@ -25,8 +25,6 @@ ToDo:
- The schematic shows the audio counter connected to 2MHz, but this produces
sounds that are too high. Connected to 1MHz for now.
- Serial
- Parallel / Centronics
- Need more software
- Pasting can sometimes drop a character.
****************************************************************************/
@ -42,7 +40,7 @@ ToDo:
//#include "machine/clock.h"
#include "machine/pit8253.h"
#include "machine/i8255.h"
//#include "bus/centronics/ctronics.h"
#include "bus/centronics/ctronics.h"
#include "imagedev/cassette.h"
#include "sound/wave.h"
#include "sound/speaker.h"
@ -70,6 +68,7 @@ public:
, m_io_keyboard(*this, "KEY")
, m_dma(*this, "dma")
, m_u12(*this, "u12")
, m_centronics(*this, "centronics")
, m_fdc(*this, "fdc")
#if NEWFDC
, m_floppy0(*this, "fdc:0")
@ -90,6 +89,7 @@ public:
#if NEWFDC
DECLARE_FLOPPY_FORMATS(floppy_formats);
#endif
DECLARE_WRITE_LINE_MEMBER(cent_busy_w);
DECLARE_WRITE_LINE_MEMBER(busreq_w);
DECLARE_READ8_MEMBER(memory_read_byte);
DECLARE_WRITE8_MEMBER(memory_write_byte);
@ -111,12 +111,14 @@ private:
bool m_crtc_vs;
bool m_crtc_hs;
bool m_motor;
bool m_centronics_busy;
required_device<cpu_device> m_maincpu;
required_device<cassette_image_device> m_cass;
required_device<mc6845_device> m_crtc;
required_ioport_array<8> m_io_keyboard;
required_device<z80dma_device> m_dma;
required_device<ttl74123_device> m_u12;
required_device<centronics_device> m_centronics;
#if NEWFDC
required_device<wd2793_t> m_fdc;
required_device<floppy_connector> m_floppy0;
@ -239,6 +241,11 @@ static INPUT_PORTS_START( excali64 )
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 &") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
INPUT_PORTS_END
WRITE_LINE_MEMBER( excali64_state::cent_busy_w )
{
m_centronics_busy = state;
}
#if NEWFDC
FLOPPY_FORMATS_MEMBER( excali64_state::floppy_formats )
FLOPPY_EXCALI64_FORMAT
@ -365,7 +372,8 @@ WRITE8_MEMBER( excali64_state::ppib_w )
READ8_MEMBER( excali64_state::ppic_r )
{
UINT8 data = 0xf7;
UINT8 data = 0xf4; // READY line must be low to print
data |= (UINT8)m_centronics_busy;
data |= (m_cass->input() > 0.1) << 3;
return data;
}
@ -373,6 +381,7 @@ READ8_MEMBER( excali64_state::ppic_r )
WRITE8_MEMBER( excali64_state::ppic_w )
{
m_cass->output(BIT(data, 7) ? -1.0 : +1.0);
m_centronics->write_strobe(BIT(data, 4));
}
READ8_MEMBER( excali64_state::port00_r )
@ -607,14 +616,12 @@ static MACHINE_CONFIG_START( excali64, excali64_state )
MCFG_DEVICE_ADD("pit", PIT8253, 0)
MCFG_PIT8253_CLK0(XTAL_16MHz / 16) /* Timer 0: tone gen for speaker */
MCFG_PIT8253_OUT0_HANDLER(DEVWRITELINE("speaker", speaker_sound_device, level_w))
MCFG_PIT8253_CLK1(XTAL_16MHz / 8) /* Timer 1: baud rate gen for 8251 */
//MCFG_PIT8253_CLK1(XTAL_16MHz / 16) /* Timer 1: baud rate gen for 8251 */
//MCFG_PIT8253_OUT1_HANDLER(WRITELINE(excali64_state, write_uart_clock))
//MCFG_PIT8253_CLK2(XTAL_16MHz / 8) /* Timer 2: not used */
//MCFG_PIT8253_CLK2(XTAL_16MHz / 16) /* Timer 2: not used */
MCFG_DEVICE_ADD("ppi", I8255A, 0 )
//MCFG_I8255_IN_PORTA_CB(READ8(excali64_state, ppia_r))
//MCFG_I8255_OUT_PORTA_CB(WRITE8(excali64_state, ppia_w)) // parallel port
//MCFG_I8255_IN_PORTB_CB(READ8(excali64_state, ppib_r))
MCFG_I8255_OUT_PORTA_CB(DEVWRITE8("cent_data_out", output_latch_device, write)) // parallel port
MCFG_I8255_OUT_PORTB_CB(WRITE8(excali64_state, ppib_w))
MCFG_I8255_IN_PORTC_CB(READ8(excali64_state, ppic_r))
MCFG_I8255_OUT_PORTC_CB(WRITE8(excali64_state, ppic_w))
@ -672,6 +679,10 @@ static MACHINE_CONFIG_START( excali64, excali64_state )
MCFG_TTL74123_B_PIN_VALUE(1) /* B pin - driven by port e4 bit 5 */
MCFG_TTL74123_CLEAR_PIN_VALUE(1) /* Clear pin - pulled high */
MCFG_TTL74123_OUTPUT_CHANGED_CB(WRITE8(excali64_state, motor_w))
MCFG_CENTRONICS_ADD("centronics", centronics_devices, "printer")
MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(excali64_state, cent_busy_w))
MACHINE_CONFIG_END
/* ROM definition */
@ -696,4 +707,4 @@ ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1984, excali64, 0, 0, excali64, excali64, driver_device, 0, "BGR Computers", "Excalibur 64", GAME_NOT_WORKING )
COMP( 1984, excali64, 0, 0, excali64, excali64, driver_device, 0, "BGR Computers", "Excalibur 64", 0 )