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tk2000: Add printer interface

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This commit is contained in:
AJR 2019-06-16 13:13:36 -04:00
parent d57439b609
commit 927944810e
1 changed files with 33 additions and 30 deletions
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63
src/mame/drivers/tk2000.cpp
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@ -18,6 +18,7 @@
#include "video/apple2.h" #include "video/apple2.h"
#include "cpu/m6502/m6502.h" #include "cpu/m6502/m6502.h"
#include "bus/centronics/ctronics.h"
#include "imagedev/cassette.h" #include "imagedev/cassette.h"
#include "machine/74259.h" #include "machine/74259.h"
#include "machine/bankdev.h" #include "machine/bankdev.h"
@ -48,20 +49,14 @@ public:
m_ram(*this, RAM_TAG), m_ram(*this, RAM_TAG),
m_screen(*this, "screen"), m_screen(*this, "screen"),
m_video(*this, A2_VIDEO_TAG), m_video(*this, A2_VIDEO_TAG),
m_row0(*this, "ROW0"), m_row(*this, "ROW%u", 0U),
m_row1(*this, "ROW1"),
m_row2(*this, "ROW2"),
m_row3(*this, "ROW3"),
m_row4(*this, "ROW4"),
m_row5(*this, "ROW5"),
m_row6(*this, "ROW6"),
m_row7(*this, "ROW7"),
m_kbspecial(*this, "keyb_special"), m_kbspecial(*this, "keyb_special"),
m_sysconfig(*this, "a2_config"), m_sysconfig(*this, "a2_config"),
m_speaker(*this, A2_SPEAKER_TAG), m_speaker(*this, A2_SPEAKER_TAG),
m_cassette(*this, A2_CASSETTE_TAG), m_cassette(*this, A2_CASSETTE_TAG),
m_upperbank(*this, A2_UPPERBANK_TAG), m_upperbank(*this, A2_UPPERBANK_TAG),
m_softlatch(*this, "softlatch") m_softlatch(*this, "softlatch"),
m_printer(*this, "printer")
{ } { }
void tk2000(machine_config &config); void tk2000(machine_config &config);
@ -75,13 +70,14 @@ private:
required_device<ram_device> m_ram; required_device<ram_device> m_ram;
required_device<screen_device> m_screen; required_device<screen_device> m_screen;
required_device<a2_video_device> m_video; required_device<a2_video_device> m_video;
required_ioport m_row0, m_row1, m_row2, m_row3, m_row4, m_row5, m_row6, m_row7; required_ioport_array<8> m_row;
required_ioport m_kbspecial; required_ioport m_kbspecial;
required_ioport m_sysconfig; required_ioport m_sysconfig;
required_device<speaker_sound_device> m_speaker; required_device<speaker_sound_device> m_speaker;
required_device<cassette_image_device> m_cassette; required_device<cassette_image_device> m_cassette;
required_device<address_map_bank_device> m_upperbank; required_device<address_map_bank_device> m_upperbank;
required_device<addressable_latch_device> m_softlatch; required_device<addressable_latch_device> m_softlatch;
required_device<centronics_device> m_printer;
int m_speaker_state; int m_speaker_state;
int m_cassette_state; int m_cassette_state;
@ -90,6 +86,7 @@ private:
uint8_t *m_ram_ptr; uint8_t *m_ram_ptr;
int m_ram_size; int m_ram_size;
bool m_printer_busy;
TIMER_DEVICE_CALLBACK_MEMBER(apple2_interrupt); TIMER_DEVICE_CALLBACK_MEMBER(apple2_interrupt);
@ -97,6 +94,8 @@ private:
uint8_t ram_r(offs_t offset); uint8_t ram_r(offs_t offset);
void ram_w(offs_t offset, uint8_t data); void ram_w(offs_t offset, uint8_t data);
DECLARE_WRITE_LINE_MEMBER(printer_busy_w);
void kbout_w(uint8_t data); void kbout_w(uint8_t data);
uint8_t kbin_r(); uint8_t kbin_r();
uint8_t casout_r(); uint8_t casout_r();
@ -108,7 +107,6 @@ private:
DECLARE_WRITE_LINE_MEMBER(color_w); DECLARE_WRITE_LINE_MEMBER(color_w);
DECLARE_WRITE_LINE_MEMBER(motor_a_w); DECLARE_WRITE_LINE_MEMBER(motor_a_w);
DECLARE_WRITE_LINE_MEMBER(motor_b_w); DECLARE_WRITE_LINE_MEMBER(motor_b_w);
DECLARE_WRITE_LINE_MEMBER(printer_strobe_w);
DECLARE_WRITE_LINE_MEMBER(rom_ram_w); DECLARE_WRITE_LINE_MEMBER(rom_ram_w);
DECLARE_WRITE_LINE_MEMBER(ctrl_key_w); DECLARE_WRITE_LINE_MEMBER(ctrl_key_w);
uint8_t c080_r(offs_t offset); uint8_t c080_r(offs_t offset);
@ -134,11 +132,13 @@ void tk2000_state::machine_start()
m_speaker->level_w(m_speaker_state); m_speaker->level_w(m_speaker_state);
m_cassette_state = 0; m_cassette_state = 0;
m_cassette->output(-1.0f); m_cassette->output(-1.0f);
m_printer_busy = false;
// setup save states // setup save states
save_item(NAME(m_speaker_state)); save_item(NAME(m_speaker_state));
save_item(NAME(m_cassette_state)); save_item(NAME(m_cassette_state));
save_item(NAME(m_strobe)); save_item(NAME(m_strobe));
save_item(NAME(m_printer_busy));
// setup video pointers // setup video pointers
m_video->m_ram_ptr = m_ram_ptr; m_video->m_ram_ptr = m_ram_ptr;
@ -180,28 +180,32 @@ uint32_t tk2000_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
I/O I/O
***************************************************************************/ ***************************************************************************/
WRITE_LINE_MEMBER(tk2000_state::printer_busy_w)
{
m_printer_busy = state;
}
void tk2000_state::kbout_w(uint8_t data) void tk2000_state::kbout_w(uint8_t data)
{ {
// write row mask for keyboard scan // write row mask for keyboard scan
switch (data) m_strobe = 0xff;
{ for (int i = 0; i < 8; i++)
case 0: if (BIT(data, i))
break; m_strobe &= m_row[i]->read();
case 0x01: m_strobe = m_row0->read(); break; m_printer->write_data0(BIT(data, 0));
case 0x02: m_strobe = m_row1->read(); break; m_printer->write_data1(BIT(data, 1));
case 0x04: m_strobe = m_row2->read(); break; m_printer->write_data2(BIT(data, 2));
case 0x08: m_strobe = m_row3->read(); break; m_printer->write_data3(BIT(data, 3));
case 0x10: m_strobe = m_row4->read(); break; m_printer->write_data4(BIT(data, 4));
case 0x20: m_strobe = m_row5->read(); break; m_printer->write_data5(BIT(data, 5));
case 0x40: m_strobe = m_row6->read(); break; m_printer->write_data6(BIT(data, 6));
case 0x80: m_strobe = m_row7->read(); break; m_printer->write_data7(BIT(data, 7));
}
} }
uint8_t tk2000_state::kbin_r() uint8_t tk2000_state::kbin_r()
{ {
return m_strobe; return m_strobe | (m_printer_busy ? 0x40 : 0);
} }
uint8_t tk2000_state::casout_r() uint8_t tk2000_state::casout_r()
@ -255,10 +259,6 @@ WRITE_LINE_MEMBER(tk2000_state::motor_b_w)
{ {
} }
WRITE_LINE_MEMBER(tk2000_state::printer_strobe_w)
{
}
WRITE_LINE_MEMBER(tk2000_state::rom_ram_w) WRITE_LINE_MEMBER(tk2000_state::rom_ram_w)
{ {
// 0 = ROM, 1 = RAM // 0 = ROM, 1 = RAM
@ -597,7 +597,7 @@ void tk2000_state::tk2000(machine_config &config)
m_softlatch->q_out_cb<1>().set(FUNC(tk2000_state::motor_a_w)); m_softlatch->q_out_cb<1>().set(FUNC(tk2000_state::motor_a_w));
m_softlatch->q_out_cb<2>().set(m_video, FUNC(a2_video_device::scr_w)); m_softlatch->q_out_cb<2>().set(m_video, FUNC(a2_video_device::scr_w));
m_softlatch->q_out_cb<3>().set(FUNC(tk2000_state::motor_b_w)); m_softlatch->q_out_cb<3>().set(FUNC(tk2000_state::motor_b_w));
m_softlatch->q_out_cb<4>().set(FUNC(tk2000_state::printer_strobe_w)); m_softlatch->q_out_cb<4>().set(m_printer, FUNC(centronics_device::write_strobe));
m_softlatch->q_out_cb<5>().set(FUNC(tk2000_state::rom_ram_w)); m_softlatch->q_out_cb<5>().set(FUNC(tk2000_state::rom_ram_w));
m_softlatch->q_out_cb<7>().set(FUNC(tk2000_state::ctrl_key_w)); m_softlatch->q_out_cb<7>().set(FUNC(tk2000_state::ctrl_key_w));
@ -605,6 +605,9 @@ void tk2000_state::tk2000(machine_config &config)
CASSETTE(config, m_cassette); CASSETTE(config, m_cassette);
m_cassette->set_default_state(CASSETTE_STOPPED); m_cassette->set_default_state(CASSETTE_STOPPED);
CENTRONICS(config, m_printer, centronics_devices, nullptr);
m_printer->busy_handler().set(FUNC(tk2000_state::printer_busy_w));
} }
/*************************************************************************** /***************************************************************************