trunk/src/mame/drivers/pcxt.c
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| 58 | 58 | #include "cpu/i86/i86.h" |
| 59 | 59 | #include "machine/pit8253.h" |
| 60 | 60 | #include "machine/i8255.h" |
| 61 | | #include "machine/8237dma.h" |
| 61 | #include "machine/am9517a.h" |
| 62 | 62 | #include "machine/pic8259.h" |
| 63 | | #include "machine/mc146818.h" |
| 64 | 63 | #include "sound/hc55516.h" |
| 65 | 64 | #include "sound/speaker.h" |
| 66 | 65 | #include "video/pc_cga.h" |
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| 95 | 94 | required_device<pit8253_device> m_pit8253; |
| 96 | 95 | required_device<pic8259_device> m_pic8259_1; |
| 97 | 96 | required_device<pic8259_device> m_pic8259_2; |
| 98 | | required_device<i8237_device> m_dma8237_1; |
| 97 | required_device<am9517a_device> m_dma8237_1; |
| 99 | 98 | |
| 100 | 99 | DECLARE_READ8_MEMBER(disk_iobank_r); |
| 101 | 100 | DECLARE_WRITE8_MEMBER(disk_iobank_w); |
| 102 | 101 | DECLARE_READ8_MEMBER(fdc765_status_r); |
| 103 | 102 | DECLARE_READ8_MEMBER(fdc765_data_r); |
| 104 | 103 | DECLARE_WRITE8_MEMBER(fdc765_data_w); |
| 105 | | DECLARE_WRITE8_MEMBER(drive_selection_w); |
| 104 | DECLARE_WRITE8_MEMBER(fdc_dor_w); |
| 106 | 105 | DECLARE_READ8_MEMBER(pc_dma_read_byte); |
| 107 | 106 | DECLARE_WRITE8_MEMBER(pc_dma_write_byte); |
| 108 | 107 | DECLARE_READ8_MEMBER(dma_page_select_r); |
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| 403 | 402 | READ8_MEMBER(pcxt_state::fdc765_data_r) |
| 404 | 403 | { |
| 405 | 404 | m_status = (FDC_READ); |
| 405 | machine().device<pic8259_device>("pic8259_1")->ir6_w(0); |
| 406 | 406 | return 0xc0; |
| 407 | 407 | } |
| 408 | 408 | |
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| 412 | 412 | } |
| 413 | 413 | |
| 414 | 414 | |
| 415 | | WRITE8_MEMBER(pcxt_state::drive_selection_w) |
| 415 | WRITE8_MEMBER(pcxt_state::fdc_dor_w) |
| 416 | 416 | { |
| 417 | 417 | /* TODO: properly hook-up upd765 FDC there */ |
| 418 | 418 | machine().device<pic8259_device>("pic8259_1")->ir6_w(1); |
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| 428 | 428 | m_maincpu->set_input_line(INPUT_LINE_HALT, state ? ASSERT_LINE : CLEAR_LINE); |
| 429 | 429 | |
| 430 | 430 | /* Assert HLDA */ |
| 431 | | m_dma8237_1->i8237_hlda_w( state ); |
| 431 | m_dma8237_1->hack_w( state ); |
| 432 | 432 | } |
| 433 | 433 | |
| 434 | 434 | |
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| 545 | 545 | |
| 546 | 546 | static ADDRESS_MAP_START( pcxt_io_common, AS_IO, 8, pcxt_state ) |
| 547 | 547 | ADDRESS_MAP_GLOBAL_MASK(0x3ff) |
| 548 | | AM_RANGE(0x0000, 0x000f) AM_DEVREADWRITE("dma8237_1", i8237_device, i8237_r, i8237_w ) //8237 DMA Controller |
| 548 | AM_RANGE(0x0000, 0x000f) AM_DEVREADWRITE("dma8237_1", am9517a_device, read, write ) //8237 DMA Controller |
| 549 | 549 | AM_RANGE(0x0020, 0x002f) AM_DEVREADWRITE("pic8259_1", pic8259_device, read, write ) //8259 Interrupt control |
| 550 | 550 | AM_RANGE(0x0040, 0x0043) AM_DEVREADWRITE_LEGACY("pit8253", pit8253_r, pit8253_w) //8253 PIT |
| 551 | 551 | AM_RANGE(0x0060, 0x0063) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write) //PPI 8255 |
| 552 | 552 | AM_RANGE(0x0064, 0x0066) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write) //PPI 8255 |
| 553 | | AM_RANGE(0x0070, 0x007f) AM_DEVREADWRITE("rtc", mc146818_device, read, write) |
| 554 | 553 | AM_RANGE(0x0080, 0x0087) AM_READWRITE(dma_page_select_r,dma_page_select_w) |
| 555 | 554 | AM_RANGE(0x00a0, 0x00af) AM_DEVREADWRITE("pic8259_2", pic8259_device, read, write ) |
| 556 | 555 | AM_RANGE(0x0278, 0x027f) AM_RAM //printer (parallel) port latch |
| 557 | 556 | AM_RANGE(0x02f8, 0x02ff) AM_RAM //Modem port |
| 558 | 557 | AM_RANGE(0x0378, 0x037f) AM_RAM //printer (parallel) port |
| 559 | 558 | AM_RANGE(0x03bc, 0x03bf) AM_RAM //printer port |
| 560 | | AM_RANGE(0x03f2, 0x03f2) AM_WRITE(drive_selection_w) |
| 559 | AM_RANGE(0x03f2, 0x03f2) AM_WRITE(fdc_dor_w) |
| 561 | 560 | AM_RANGE(0x03f4, 0x03f4) AM_READ(fdc765_status_r) //765 Floppy Disk Controller (FDC) Status |
| 562 | 561 | AM_RANGE(0x03f5, 0x03f5) AM_READWRITE(fdc765_data_r,fdc765_data_w)//FDC Data |
| 563 | 562 | AM_RANGE(0x03f8, 0x03ff) AM_RAM //rs232c (serial) port |
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| 728 | 727 | |
| 729 | 728 | MCFG_PIC8259_ADD( "pic8259_2", DEVWRITELINE("pic8259_1", pic8259_device, ir2_w), GND, NULL ) |
| 730 | 729 | |
| 731 | | MCFG_MC146818_ADD( "rtc", MC146818_STANDARD ) |
| 732 | | |
| 733 | 730 | MCFG_FRAGMENT_ADD( pcvideo_cga ) |
| 734 | 731 | MCFG_GFXDECODE(pcxt) |
| 735 | 732 | |