/*************************************************************************** Partner driver by Miodrag Milanovic 09/06/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "imagedev/cassette.h" #include "machine/i8255.h" #include "machine/8257dma.h" #include "machine/wd17xx.h" #include "video/i8275.h" #include "includes/radio86.h" #include "includes/partner.h" #include "imagedev/flopdrv.h" #include "machine/ram.h" /* Driver initialization */ DRIVER_INIT_MEMBER(partner_state,partner) { m_tape_value = 0x80; } WRITE_LINE_MEMBER(partner_state::partner_wd17xx_drq_w) { i8257_device *device = machine().device("dma8257"); if (state) device->i8257_drq0_w(1); } const wd17xx_interface partner_wd17xx_interface = { DEVCB_LINE_GND, DEVCB_NULL, DEVCB_DRIVER_LINE_MEMBER(partner_state,partner_wd17xx_drq_w), {FLOPPY_0, FLOPPY_1, NULL, NULL} }; MACHINE_START_MEMBER(partner_state,partner) { device_t *fdc = machine().device("wd1793"); wd17xx_set_pause_time(fdc, 10); } void partner_state::partner_window_1(UINT8 bank_num, UINT16 offset,UINT8 *rom) { char bank[10]; sprintf(bank,"bank%d",bank_num); switch(m_win_mem_page) { case 2 : // FDD BIOS membank(bank)->set_base(rom + 0x16000 + offset); break; case 4 : // MCPG BIOS membank(bank)->set_base(rom + 0x14000 + offset); break; default : // BIOS membank(bank)->set_base(rom + 0x10000 + offset); break; } } void partner_state::partner_window_2(UINT8 bank_num, UINT16 offset,UINT8 *rom) { char bank[10]; sprintf(bank,"bank%d",bank_num); switch(m_win_mem_page) { case 4 : // MCPG FONT membank(bank)->set_base(rom + 0x18000 + offset); break; default : // BIOS membank(bank)->set_base(rom + 0x10000 + offset); break; } } READ8_MEMBER(partner_state::partner_floppy_r){ device_t *fdc = machine().device("wd1793"); if (offset<0x100) { switch(offset & 3) { case 0x00 : return wd17xx_status_r(fdc,space, 0); case 0x01 : return wd17xx_track_r(fdc,space, 0); case 0x02 : return wd17xx_sector_r(fdc,space, 0); default : return wd17xx_data_r(fdc,space, 0); } } else { return 0; } } WRITE8_MEMBER(partner_state::partner_floppy_w){ device_t *fdc = machine().device("wd1793"); if (offset<0x100) { switch(offset & 3) { case 0x00 : wd17xx_command_w(fdc,space, 0,data); break; case 0x01 : wd17xx_track_w(fdc,space, 0,data);break; case 0x02 : wd17xx_sector_w(fdc,space, 0,data);break; default : wd17xx_data_w(fdc,space, 0,data);break; } } else { floppy_mon_w(floppy_get_device(machine(), 0), 1); floppy_mon_w(floppy_get_device(machine(), 1), 1); if (((data >> 6) & 1)==1) { wd17xx_set_drive(fdc,0); floppy_mon_w(floppy_get_device(machine(), 0), 0); floppy_drive_set_ready_state(floppy_get_device(machine(), 0), 1, 1); } if (((data >> 3) & 1)==1) { wd17xx_set_drive(fdc,1); floppy_mon_w(floppy_get_device(machine(), 1), 0); floppy_drive_set_ready_state(floppy_get_device(machine(), 1), 1, 1); } wd17xx_set_side(fdc,data >> 7); } } void partner_state::partner_iomap_bank(UINT8 *rom) { address_space &space = m_maincpu->space(AS_PROGRAM); switch(m_win_mem_page) { case 2 : // FDD space.install_write_handler(0xdc00, 0xddff, write8_delegate(FUNC(partner_state::partner_floppy_w),this)); space.install_read_handler (0xdc00, 0xddff, read8_delegate(FUNC(partner_state::partner_floppy_r),this)); break; case 4 : // Timer break; default : // BIOS membank("bank11")->set_base(rom + 0x10000); break; } } void partner_state::partner_bank_switch() { address_space &space = m_maincpu->space(AS_PROGRAM); UINT8 *rom = memregion("maincpu")->base(); UINT8 *ram = m_ram->pointer(); space.install_write_bank(0x0000, 0x07ff, "bank1"); space.install_write_bank(0x0800, 0x3fff, "bank2"); space.install_write_bank(0x4000, 0x5fff, "bank3"); space.install_write_bank(0x6000, 0x7fff, "bank4"); space.install_write_bank(0x8000, 0x9fff, "bank5"); space.install_write_bank(0xa000, 0xb7ff, "bank6"); space.install_write_bank(0xb800, 0xbfff, "bank7"); space.install_write_bank(0xc000, 0xc7ff, "bank8"); space.install_write_bank(0xc800, 0xcfff, "bank9"); space.install_write_bank(0xd000, 0xd7ff, "bank10"); space.unmap_write(0xdc00, 0xddff); space.install_read_bank (0xdc00, 0xddff, "bank11"); space.unmap_write(0xe000, 0xe7ff); space.unmap_write(0xe800, 0xffff); // BANK 1 (0x0000 - 0x07ff) if (m_mem_page==0) { space.unmap_write(0x0000, 0x07ff); membank("bank1")->set_base(rom + 0x10000); } else { if (m_mem_page==7) { membank("bank1")->set_base(ram + 0x8000); } else { membank("bank1")->set_base(ram + 0x0000); } } // BANK 2 (0x0800 - 0x3fff) if (m_mem_page==7) { membank("bank2")->set_base(ram + 0x8800); } else { membank("bank2")->set_base(ram + 0x0800); } // BANK 3 (0x4000 - 0x5fff) if (m_mem_page==7) { membank("bank3")->set_base(ram + 0xC000); } else { if (m_mem_page==10) { //window 1 space.unmap_write(0x4000, 0x5fff); partner_window_1(3, 0, rom); } else { membank("bank3")->set_base(ram + 0x4000); } } // BANK 4 (0x6000 - 0x7fff) if (m_mem_page==7) { membank("bank4")->set_base(ram + 0xe000); } else { membank("bank4")->set_base(ram + 0x6000); } // BANK 5 (0x8000 - 0x9fff) switch (m_mem_page) { case 5: case 10: //window 2 space.unmap_write(0x8000, 0x9fff); partner_window_2(5, 0, rom); break; case 8: case 9: //window 1 space.unmap_write(0x8000, 0x9fff); partner_window_1(5, 0, rom); break; case 7: membank("bank5")->set_base(ram + 0x0000); break; default: membank("bank5")->set_base(ram + 0x8000); break; } // BANK 6 (0xa000 - 0xb7ff) switch (m_mem_page) { case 5: case 10: //window 2 space.unmap_write(0xa000, 0xb7ff); partner_window_2(6, 0, rom); break; case 6: case 8: //BASIC space.unmap_write(0xa000, 0xb7ff); membank("bank6")->set_base(rom + 0x12000); // BASIC break; case 7: membank("bank6")->set_base(ram + 0x2000); break; default: membank("bank6")->set_base(ram + 0xa000); break; } // BANK 7 (0xb800 - 0xbfff) switch (m_mem_page) { case 4: case 5: case 10: //window 2 space.unmap_write(0xb800, 0xbfff); partner_window_2(7, 0x1800, rom); break; case 6: case 8: //BASIC space.unmap_write(0xb800, 0xbfff); membank("bank7")->set_base(rom + 0x13800); // BASIC break; case 7: membank("bank7")->set_base(ram + 0x3800); break; default: membank("bank7")->set_base(ram + 0xb800); break; } // BANK 8 (0xc000 - 0xc7ff) switch (m_mem_page) { case 7: membank("bank8")->set_base(ram + 0x4000); break; case 8: case 10: space.unmap_write(0xc000, 0xc7ff); membank("bank8")->set_base(rom + 0x10000); break; default: membank("bank8")->set_base(ram + 0xc000); break; } // BANK 9 (0xc800 - 0xcfff) switch (m_mem_page) { case 7: membank("bank9")->set_base(ram + 0x4800); break; case 8: case 9: // window 2 space.unmap_write(0xc800, 0xcfff); partner_window_2(9, 0, rom); break; case 10: space.unmap_write(0xc800, 0xcfff); membank("bank9")->set_base(rom + 0x10800); break; default: membank("bank9")->set_base(ram + 0xc800); break; } // BANK 10 (0xd000 - 0xd7ff) switch (m_mem_page) { case 7: membank("bank10")->set_base(ram + 0x5000); break; case 8: case 9: // window 2 space.unmap_write(0xd000, 0xd7ff); partner_window_2(10, 0x0800, rom); break; default: membank("bank10")->set_base(ram + 0xd000); break; } // BANK 11 (0xdc00 - 0xddff) partner_iomap_bank(rom); // BANK 12 (0xe000 - 0xe7ff) if (m_mem_page==1) { membank("bank12")->set_base(rom + 0x10000); } else { //window 1 partner_window_1(12, 0, rom); } // BANK 13 (0xe800 - 0xffff) switch (m_mem_page) { case 3: case 4: case 5: // window 1 partner_window_1(13, 0x800, rom); break; default: // BIOS membank("bank13")->set_base(rom + 0x10800); break; } } WRITE8_MEMBER(partner_state::partner_win_memory_page_w) { m_win_mem_page = ~data; partner_bank_switch(); } WRITE8_MEMBER(partner_state::partner_mem_page_w) { m_mem_page = (data >> 4) & 0x0f; partner_bank_switch(); } WRITE_LINE_MEMBER(partner_state::hrq_w) { /* HACK - this should be connected to the BUSREQ line of Z80 */ m_maincpu->set_input_line(INPUT_LINE_HALT, state); /* HACK - this should be connected to the BUSACK line of Z80 */ machine().device("dma8257")->i8257_hlda_w(state); } I8257_INTERFACE( partner_dma ) { DEVCB_DRIVER_LINE_MEMBER(partner_state,hrq_w), DEVCB_NULL, DEVCB_NULL, DEVCB_DRIVER_MEMBER(radio86_state, memory_read_byte), DEVCB_DRIVER_MEMBER(radio86_state, memory_write_byte), { DEVCB_DEVICE_HANDLER("wd1793", wd17xx_data_r), DEVCB_NULL, DEVCB_NULL, DEVCB_NULL }, { DEVCB_DEVICE_HANDLER("wd1793", wd17xx_data_w), DEVCB_NULL, DEVCB_DEVICE_MEMBER("i8275", i8275_device, dack_w), DEVCB_NULL } }; MACHINE_RESET_MEMBER(partner_state,partner) { m_mem_page = 0; m_win_mem_page = 0; partner_bank_switch(); }