mirror of
https://github.com/holub/mame
synced 2025-04-24 09:20:02 +03:00
wicat: WIP checkpoint (no whatsnew)
This commit is contained in:
mahlemiut
parent
f6a91bbb13
commit
9978476e55
@ -44,7 +44,7 @@ public:
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, m_videouart0(*this,"videouart0")
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, m_videouart1(*this,"videouart1")
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, m_videouart(*this,"videouart")
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, m_videosram(*this,"videosram")
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, m_videosram(*this,"vsram")
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, m_chargen(*this,"g2char")
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{ }
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@ -67,6 +67,8 @@ public:
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DECLARE_WRITE8_MEMBER(video_uart1_w);
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DECLARE_READ8_MEMBER(videosram_r);
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DECLARE_WRITE8_MEMBER(videosram_w);
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DECLARE_WRITE8_MEMBER(videosram_store_w);
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DECLARE_WRITE8_MEMBER(videosram_recall_w);
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DECLARE_READ8_MEMBER(video_timer_r);
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DECLARE_WRITE8_MEMBER(video_timer_w);
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DECLARE_READ8_MEMBER(vram_r);
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@ -77,6 +79,8 @@ public:
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DECLARE_WRITE_LINE_MEMBER(dma_hrq_w);
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DECLARE_WRITE_LINE_MEMBER(dma_nmi_cb);
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DECLARE_WRITE_LINE_MEMBER(crtc_cb);
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DECLARE_READ8_MEMBER(hdc_r);
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DECLARE_WRITE8_MEMBER(hdc_w);
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required_shared_ptr<UINT8> m_vram;
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required_device<m68000_device> m_maincpu;
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@ -94,7 +98,7 @@ public:
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required_device<mc2661_device> m_videouart0;
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required_device<mc2661_device> m_videouart1;
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required_device<im6402_device> m_videouart;
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required_device<x2212_device> m_videosram;
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required_device<x2210_device> m_videosram;
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required_memory_region m_chargen;
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UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; }
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@ -106,14 +110,23 @@ private:
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virtual void machine_reset();
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virtual void driver_start();
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void poll_kb();
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void send_key(UINT8 val);
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emu_timer* m_video_timer;
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emu_timer* m_kb_timer;
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emu_timer* m_kb_serial_timer;
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static const device_timer_id VIDEO_TIMER = 0;
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static const device_timer_id KB_TIMER = 1;
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static const device_timer_id KB_SERIAL_TIMER = 2;
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UINT8 m_portA;
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UINT8 m_portB;
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bool m_video_timer_irq;
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UINT8 m_nmi_enable;
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UINT8 m_crtc_irq;
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UINT16 m_kb_data;
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UINT8 m_kb_bit;
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};
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@ -136,6 +149,8 @@ static ADDRESS_MAP_START(wicat_mem, AS_PROGRAM, 16, wicat_state)
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AM_RANGE(0xf00040, 0xf0005f) AM_DEVREADWRITE8("via",via6522_device,read,write,0xff00)
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AM_RANGE(0xf00060, 0xf0007f) AM_DEVREADWRITE8("rtc",mm58274c_device,read,write,0xff00)
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AM_RANGE(0xf000d0, 0xf000d1) AM_WRITE(parallel_led_w)
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AM_RANGE(0xf00180, 0xf0018f) AM_READWRITE8(hdc_r,hdc_w,0xffff)
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// F00190 - Floppy controller
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AM_RANGE(0xf00f00, 0xf00fff) AM_READWRITE(invalid_r,invalid_w)
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ADDRESS_MAP_END
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@ -151,6 +166,8 @@ static ADDRESS_MAP_START(wicat_video_io, AS_IO, 8, wicat_state)
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AM_RANGE(0x0200,0x0207) AM_READWRITE(video_uart1_r,video_uart1_w) // INS2651 UART #2
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AM_RANGE(0x0304,0x0304) AM_READ(video_status_r)
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AM_RANGE(0x0400,0x047f) AM_READWRITE(videosram_r,videosram_w) // XD2210 4-bit NOVRAM
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AM_RANGE(0x0500,0x0500) AM_WRITE(videosram_recall_w)
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AM_RANGE(0x0600,0x0600) AM_WRITE(videosram_store_w)
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AM_RANGE(0x0700,0x0700) AM_DEVREADWRITE("videouart",im6402_device,read,write) // UART?
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AM_RANGE(0x0800,0x080f) AM_READWRITE(video_ctrl_r,video_ctrl_w)
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AM_RANGE(0x0a00,0x0a1f) AM_READWRITE(video_dma_r,video_dma_w) // DMA
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@ -174,11 +191,30 @@ ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( wicat )
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PORT_START("kb0")
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PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
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PORT_BIT(0xfff7ffff,IP_ACTIVE_HIGH,IPT_UNUSED)
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PORT_START("kb1")
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PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
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PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
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PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
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PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
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PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
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PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
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PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
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PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
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PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
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PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
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INPUT_PORTS_END
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void wicat_state::driver_start()
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{
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m_video_timer = timer_alloc(VIDEO_TIMER);
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m_kb_timer = timer_alloc(KB_TIMER);
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m_kb_serial_timer = timer_alloc(KB_SERIAL_TIMER);
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}
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void wicat_state::machine_start()
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@ -187,12 +223,18 @@ void wicat_state::machine_start()
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void wicat_state::machine_reset()
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{
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// on the terminal board /DCD on both INS2651s is tied to GND
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// on the terminal board /DCD on both INS2651s are tied to GND
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m_videouart0->dcd_w(0);
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m_videouart1->dcd_w(0);
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m_uart0->dcd_w(0);
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m_uart1->dcd_w(0);
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m_uart2->dcd_w(0);
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m_uart3->dcd_w(0);
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m_uart4->dcd_w(0);
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m_uart5->dcd_w(0);
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m_video_timer_irq = false;
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m_video_timer->adjust(attotime::zero,0,attotime::from_hz(60));
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m_kb_timer->adjust(attotime::zero,0,attotime::from_msec(50));
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m_nmi_enable = 0;
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m_crtc_irq = CLEAR_LINE;
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}
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@ -205,8 +247,54 @@ void wicat_state::device_timer(emu_timer &timer, device_timer_id id, int param,
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m_video_timer_irq = true;
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m_videocpu->set_input_line(INPUT_LINE_IRQ0,ASSERT_LINE);
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break;
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case KB_TIMER:
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poll_kb();
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break;
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case KB_SERIAL_TIMER:
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m_videouart1->rx_w((m_kb_data >> (m_kb_bit)) & 0x01);
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m_kb_bit++;
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if(m_kb_bit > 10)
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{
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m_kb_serial_timer->reset();
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m_videouart1->dsr_w(0);
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}
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break;
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}
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}
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void wicat_state::poll_kb()
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{
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UINT8 line;
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UINT8 val = 0;
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UINT8 x;
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UINT32 data;
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char kbtag[8];
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for(line=0;line<2;line++)
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{
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sprintf(kbtag,"kb%i",line);
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data = ioport(kbtag)->read();
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for(x=0;x<32;x++)
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{
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if(data & (1<<x))
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{
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send_key(val);
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return;
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}
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val++;
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}
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}
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}
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void wicat_state::send_key(UINT8 val)
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{
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// based on settings in the terminal NOVRAM, the keyboard is using 1200 baud, 7 bits, 2 stop bits
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logerror("Sending key %i\n",val);
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m_kb_data = 0x0003 | (val << 3);
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m_kb_bit = 0;
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m_kb_serial_timer->adjust(attotime::zero,0,attotime::from_hz(1200));
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}
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WRITE16_MEMBER( wicat_state::parallel_led_w )
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{
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// bit 0 - parallel port A direction (0 = input)
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@ -268,6 +356,31 @@ WRITE16_MEMBER(wicat_state::memmap_w)
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popmessage("Memory mapping register EFFC01 written!");
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}
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// WD1000 Winchester Disk controller (10MB 5 1/4" HD)
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// for now, we'll just try to tell the system there is no HD
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READ8_MEMBER(wicat_state::hdc_r)
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{
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switch(offset)
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{
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case 0x00: // Error register
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return 0x00;
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case 0x06: // Status register
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return 0x04;
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}
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return 0x00;
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}
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WRITE8_MEMBER(wicat_state::hdc_w)
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{
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switch(offset)
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{
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case 0x06: // Command register
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logerror("HDC: Command %1x\n",(data & 0xf0) >> 4);
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m_maincpu->set_input_line(M68K_IRQ_5,HOLD_LINE);
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break;
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}
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}
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READ8_MEMBER(wicat_state::video_r)
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{
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switch(offset)
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@ -339,14 +452,9 @@ WRITE8_HANDLER(wicat_state::video_uart1_w)
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m_videouart1->write(space,noff,data);
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}
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// XD2210 256 x 4bit NOVRAM
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// XD2210 64 x 4bit NOVRAM
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READ8_MEMBER(wicat_state::videosram_r)
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{
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if(offset == 0x08 || offset == 0x0c)
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return 0x08;
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if(offset == 0x06 || offset == 0x0a)
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return 0x0e;
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if(offset & 0x01)
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return 0xff;
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else
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@ -359,6 +467,26 @@ WRITE8_MEMBER(wicat_state::videosram_w)
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m_videosram->write(space,offset/2,data);
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}
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WRITE8_MEMBER(wicat_state::videosram_store_w)
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{
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if(data & 0x01) // unsure of the actual bit checked, the terminal code just writes 0xff
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{
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m_videosram->store(1);
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m_videosram->store(0);
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logerror("XD2210: Store triggered.\n");
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}
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}
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WRITE8_MEMBER(wicat_state::videosram_recall_w)
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{
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if(data & 0x01) // unsure of the actual bit checked, the terminal code just writes 0xff
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{
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m_videosram->recall(1);
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m_videosram->recall(0);
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logerror("XD2210: Store triggered.\n");
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}
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}
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READ8_MEMBER(wicat_state::video_timer_r)
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{
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UINT8 ret = 0x00;
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@ -442,8 +570,8 @@ I8275_DISPLAY_PIXELS(wicat_display_pixels)
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// internal terminal
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static mc2661_interface wicat_uart0_intf =
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{
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19200, // RXC
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19200, // TXC
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0, // RXC
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0, // TXC
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DEVCB_DEVICE_LINE_MEMBER("videouart0",mc2661_device, rx_w), // TXD out
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DEVCB_CPU_INPUT_LINE("maincpu",M68K_IRQ_2), // RXRDY out
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DEVCB_NULL, // TXRDY out
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@ -543,8 +671,8 @@ static mc2661_interface wicat_uart6_intf =
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// terminal (2x INS2651, 1x IM6042 - one of these is for the keyboard, another communicates with the main board, the third is unknown)
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static mc2661_interface wicat_video_uart0_intf =
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{
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19200, // RXC
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19200, // TXC
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0, // RXC
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0, // TXC
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DEVCB_DEVICE_LINE_MEMBER("uart0",mc2661_device, rx_w), // RXD out
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DEVCB_CPU_INPUT_LINE("videocpu",INPUT_LINE_IRQ0), // RXRDY out
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DEVCB_NULL, // TXRDY out
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@ -564,7 +692,7 @@ static mc2661_interface wicat_video_uart1_intf =
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DEVCB_NULL, // TXRDY out
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DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, rts_w), // RTS out
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DEVCB_NULL, //DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, dtr_w), // DTR out
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DEVCB_CPU_INPUT_LINE("videocpu",INPUT_LINE_IRQ0), // TXEMT out
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DEVCB_NULL, // TXEMT out
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DEVCB_NULL, // BKDET out
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DEVCB_NULL // XSYNC out
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};
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@ -672,7 +800,7 @@ static MACHINE_CONFIG_START( wicat, wicat_state )
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MCFG_IM6402_ADD("videouart", wicat_video_uart_intf)
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MCFG_MC2661_ADD("videouart0", XTAL_5_0688MHz, wicat_video_uart0_intf) // the INS2651 looks similar enough to the MC2661...
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MCFG_MC2661_ADD("videouart1", XTAL_5_0688MHz, wicat_video_uart1_intf)
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MCFG_X2212_ADD("videosram") // XD2210
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MCFG_X2210_ADD("vsram") // XD2210
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MCFG_SCREEN_ADD("screen",RASTER)
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MCFG_SCREEN_SIZE(720,300)
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@ -690,7 +818,8 @@ static MACHINE_CONFIG_START( wicat, wicat_state )
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MCFG_CPU_ADD("floppycpu",N8X300,XTAL_8MHz)
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MCFG_CPU_PROGRAM_MAP(wicat_flop_mem)
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MCFG_CPU_IO_MAP(wicat_flop_io)
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// MCFG_FD1795_ADD("fdc")
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MCFG_FD1795_ADD("fdc",default_wd17xx_interface_2_drives)
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MACHINE_CONFIG_END
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@ -733,6 +862,9 @@ ROM_START( wicat )
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ROM_LOAD16_BYTE("1term6.o", 0x06001, 0x0800, CRC(e245ff49) SHA1(9a34e6cf6013b1044cccf26371cc3a000f17b58c) )
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ROM_LOAD16_BYTE("1term7.e", 0x07000, 0x0800, CRC(0c918550) SHA1(2ef6ce41cc2643d45c4bae31ce151d8b6c363471) )
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ROM_LOAD16_BYTE("1term7.o", 0x07001, 0x0800, CRC(71fdc692) SHA1(d6f12ec20ff2e4948f54b0c79f11ccbdc9db865c) )
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ROM_REGION(0x40, "g1novram", 0)
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ROM_LOAD ("ee2-2.bin", 0x00000, 0x0040, CRC(8f265118) SHA1(6bd74e3d01cf85cca1abcc15cb229dbd63022978) )
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ROM_REGION16_BE(0x8000, "g2", 0)
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ROM_LOAD16_BYTE("2term0.e", 0x00000, 0x0800, CRC(29e5dd68) SHA1(9023f53d554b9ef4f4efc731645ba42f728bcd2c) )
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@ -751,6 +883,8 @@ ROM_START( wicat )
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ROM_LOAD16_BYTE("2term6.o", 0x06001, 0x0800, CRC(0afb566c) SHA1(761455ced46b6fccd0be9c8fa920f7954a36972b) )
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ROM_LOAD16_BYTE("2term7.e", 0x07000, 0x0800, CRC(033ea830) SHA1(27c33eea2df812a1a96e2f47ba7993e2ca3675ad) )
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ROM_LOAD16_BYTE("2term7.o", 0x07001, 0x0800, CRC(e157c5d2) SHA1(3cd1ea0fb9df1358e8a358468a4df5e4eaaa86a2) )
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ROM_REGION(0x40, "vsram", 0)
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ROM_LOAD ("ee8-82.bin", 0x00000, 0x0040, CRC(dfb4b0fb) SHA1(12304f5c5236791f5e931d9e49b4a70dcbba55c0) )
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// Terminal Video board
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ROM_REGION(0x1000, "g2char", 0)
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