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https://github.com/holub/mame
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New machines marked as NOT_WORKING
---------------------------------- Junior-80
This commit is contained in:
Robbbert
parent
0d732186e3
commit
f627dff3ad
@ -4538,6 +4538,7 @@ files {
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MAME_DIR .. "src/mame/drivers/jade.cpp",
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MAME_DIR .. "src/mame/drivers/jonos.cpp",
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MAME_DIR .. "src/mame/drivers/juku.cpp",
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MAME_DIR .. "src/mame/drivers/junior80.cpp",
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MAME_DIR .. "src/mame/drivers/krokha.cpp",
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MAME_DIR .. "src/mame/drivers/kron.cpp",
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MAME_DIR .. "src/mame/drivers/lee1214.cpp",
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301
src/mame/drivers/junior80.cpp
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301
src/mame/drivers/junior80.cpp
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@ -0,0 +1,301 @@
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// license:BSD-3-Clause
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// copyright-holders:Robbbert
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/***************************************************************************
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Not much is known about this Hungarian Z80-based machine, not even the name
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of the manufacturer. It comes with 64K of RAM, and 2x 5.25 floppy drives.
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Video is a CGA card.
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Notes found at vcfed:
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1988, hungarian unknown, junior80
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2x 5.25 FDD DSDD 80T, 64K ram, CGA graphics card, Serial card with 2 ports
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which is in addition to those ports on the main board.
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So this are the main chips on the logic board:
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Address / Chip
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00H-03H I8255
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00H - input port for keyboard scan codes
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01H - input port for system jumpers and parallel interface extra lines
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PB6-7 - extra line parallel port B
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PB4-5 - extra line parallel port A
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PB3 - 0 - parallel keyboard / 1-serial keyboard
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PB2 - 0 - internal console / 1 - serial console
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PB1 - disk drive 2,3 - 0=5.25", 1=8"
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PB0 - disk drive 0,1 - 0=5.25", 1=8"
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02H
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PC7 - second channel I8253 - 0 deactivated, 1 activated
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PC6 - speaker modulation
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PC4-5 - extra lines parallel port B
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PC2-3 - extra lines parallel port A
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PC1 - activate / deactivate serial keyboard
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PC0 - comutation 0-RAM / 1 -ROM
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03H command port for I8255
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10H-13H Z80A SIO
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10H - dataport A
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11H - dataport B
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12H - command port A
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13H - command port B
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THE code in ROM programms z80SIO: port A unprogrammed, port B: 8 bits, 2 stop-bits, no parity,
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clockx16 - when the OS is loaded from disk, both channels are programmed identical.
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20-23H Z80A CTC
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20H - data port - interrupt vector for channel 0 (in 8mhz, out 250khz)
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21H - command port data channel 1
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22H - command port data channel 2
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23H - command port data channel 3
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both ROM and OS(from disk) programm the z80A ctc like this:
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channel 0: counter with no interrupt
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channel 1: counter with interrupt on falling edge of the page signal of the display unit
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channel 2: counter with interrupt on falling edge of the keyboard interrupt
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channel 3: counter with interrupt on rising edge ot the fdd controller interrupt
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30H-38H i8257 DMA
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30H - DMA channel 0 - memory address for DMA transfer start
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31H - DMA channel 0 - number of bytes to transfer
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32H - DMA channel 1 - memory address for DMA transfer start
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33H - DMA channel 1 - number of bytes to transfer
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34H - DMA channel 2 - memory address for DMA transfer start
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35H - DMA channel 2 - number of bytes to transfer
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36H - DMA channel 3 - memory address for DMA transfer start
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37H - DMA channel 4 - number of bytes to transfer
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38H - state command of DMA chip
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the only programmed channel is channel 1, used for data transfer between ram and fdd controller
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40H-41H - I8272 floppy drive controller
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40H - command and state of I8272
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41H - dataport
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48H - commands for fdd controller
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D6,D7 - x
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D5 - reset I8272 (0 active)
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D4 - type of disk drive (0 - 8", 1- 5.25")
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D0-3 - start stop drive motor (drive 0-3)
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49H - load the scan address into the hardware in graphics mode
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4AH - command port of display controller (discrete logic!)
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D6,7 - x
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D5 - blinking activated (1 active)
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D4 - mode selection 0 = 320x200 1=640x200
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D3 - display 0=off 1 = on
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D2 - validate acces display ram (16k display ram on board) - 1 active
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D1 - 0 - graphics mode / 1 - text mode
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D0 - 0 = 40x25, 1= 80x25
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4BH - color selection and text page selection for display controller
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D6-7 - selection of working text page
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D5 - select color palette
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D4 - backgroung
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D3 - bright
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D2 - red
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D1 - green
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D0 - blue
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4CH - address port - row - select the first row displayed in text mode
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4DH - selection port of clock for transmit and receive for Z80 SIO
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D1-7 - x
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D0 - 0= internal clock, 1= external clock
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4FH - reset port for serial keyboard - keyboard interrupt is deactivated by writing or reading of 4FH
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50H-53H - z80A PIO
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50H - data port A
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51H - data port B
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52H - interrupt vector A
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53H - interrupt vector B
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programmed in rom and from os like this: port A input with interrupt, port B - output with interrupt
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60H-6FH ramdisk
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70H-73H - i8253
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70H - dataport channel 0
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71H - dataport channel 1
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72H - dataport channel 2
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73H - command port I8253
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- i8253 programmed in rom and from os like: channel 0 unprogrammed,
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channel 1: clock divider for 9600 bps clock
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channel 2: clock divider for sound generator
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when the os loads, channel 0 is programmed like channel 1
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***************************************************************************
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To Do: Almost everything.
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Status: Just a closet skeleton
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***************************************************************************/
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "imagedev/floppy.h"
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#include "machine/pit8253.h"
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#include "machine/i8255.h"
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#include "machine/i8257.h"
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#include "machine/upd765.h"
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#include "machine/z80ctc.h"
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#include "machine/z80sio.h"
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#include "machine/z80pio.h"
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//#include "bus/rs232/rs232.h"
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#include "machine/wd_fdc.h"
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class junior80_state : public driver_device
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{
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public:
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junior80_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_ctc(*this, "ctc")
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, m_dma(*this, "dma")
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, m_pio(*this, "pio")
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, m_pit(*this, "pit")
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, m_ppi(*this, "ppi")
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, m_uart(*this, "uart")
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, m_fdc(*this, "fdc")
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, m_floppy0(*this, "fdc:0")
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, m_floppy1(*this, "fdc:1")
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//, m_io_keyboard(*this, "LINE%u", 0)
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{ }
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void junior80(machine_config &config);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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private:
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void mem_map(address_map &map);
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void io_map(address_map &map);
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void drive_w(offs_t offset, u8 data);
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floppy_image_device *m_floppy;
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required_device<cpu_device> m_maincpu;
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required_device<z80ctc_device> m_ctc;
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required_device<i8257_device> m_dma;
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required_device<z80pio_device> m_pio;
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required_device<pit8253_device> m_pit;
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required_device<i8255_device> m_ppi;
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required_device<z80sio_device> m_uart;
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required_device<i8272a_device> m_fdc;
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required_device<floppy_connector> m_floppy0;
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required_device<floppy_connector> m_floppy1;
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//required_ioport_array<8> m_io_keyboard;
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};
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void junior80_state::mem_map(address_map &map)
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{
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map(0x0000, 0xffff).ram();
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map(0x0000, 0x07ff).rom();
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}
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void junior80_state::io_map(address_map &map)
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{
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map.global_mask(0xff);
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map.unmap_value_high();
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map(0x00, 0x03).mirror(0x0c).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write));
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map(0x10, 0x13).mirror(0x0c).rw(m_uart, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
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map(0x20, 0x23).mirror(0x0c).rw(m_ctc, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
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map(0x30, 0x38).rw(m_dma, FUNC(i8257_device::read), FUNC(i8257_device::write));
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map(0x40, 0x41).mirror(0x06).m(m_fdc, FUNC(i8272a_device::map));
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map(0x48, 0x48).w(FUNC(junior80_state::drive_w));
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//map(0x49, 0x4d) video/graphics control
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//map(0x4f, 0x4f) kbd ack
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map(0x50, 0x53).mirror(0x0c).rw(m_pio, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
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//map(0x60, 0x6f) ramdisk
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map(0x70, 0x73).mirror(0x0c).rw("pit", FUNC(pit8253_device::read), FUNC(pit8253_device::write));
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}
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static INPUT_PORTS_START( junior80 )
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INPUT_PORTS_END
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/*************************************
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*
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* Port handlers.
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*
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*************************************/
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void junior80_state::drive_w(offs_t offset, u8 data)
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{
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m_floppy = nullptr;
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if (BIT(data, 0)) m_floppy = m_floppy0->get_device();
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if (BIT(data, 1)) m_floppy = m_floppy1->get_device();
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//if (BIT(data, 2)) m_floppy = m_floppy2->get_device();
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//if (BIT(data, 3)) m_floppy = m_floppy3->get_device();
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m_fdc->set_floppy(m_floppy);
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if (m_floppy)
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{
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m_floppy->mon_w(0);
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//m_floppy->ss_w(BIT(data, 4));
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}
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//m_fdc->dden_w(!BIT(data, 6));
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m_fdc->set_unscaled_clock(BIT(data, 4) ? 4000000 : 8000000);
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if (!BIT(data, 5))
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m_fdc->reset();
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}
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/*************************************
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* Machine *
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*************************************/
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void junior80_state::machine_start()
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{
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}
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void junior80_state::machine_reset()
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{
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m_floppy = nullptr;
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}
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static void junior80_floppies(device_slot_interface &device)
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{
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device.option_add("fdd", FLOPPY_525_QD);
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}
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void junior80_state::junior80(machine_config &config)
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{
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/* basic machine hardware */
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Z80(config, m_maincpu, 2'500'000); // 2.5 or 4MHz selectable by jumpers
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m_maincpu->set_addrmap(AS_PROGRAM, &junior80_state::mem_map);
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m_maincpu->set_addrmap(AS_IO, &junior80_state::io_map);
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// devices
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I8272A(config, m_fdc, 8_MHz_XTAL / 2);
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FLOPPY_CONNECTOR(config, "fdc:0", junior80_floppies, "fdd", floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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FLOPPY_CONNECTOR(config, "fdc:1", junior80_floppies, "fdd", floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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Z80PIO(config, m_pio, 0);
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Z80SIO(config, m_uart, 0);
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Z80CTC(config, m_ctc, 0);
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PIT8253(config, m_pit, 0);
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I8255(config, m_ppi, 0);
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I8257(config, m_dma, 0);
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//m_dma->out_hrq_cb().set(FUNC(junior80_state::hrq_w));
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//m_dma->in_memr_cb().set(FUNC(junior80_state::memory_r));
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//m_dma->out_memw_cb().set(FUNC(junior80_state::memory_w));
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//m_dma->in_ior_cb<1>().set(m_fdc, FUNC(upd765_device::data_r));
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//m_dma->out_iow_cb<1>().set(m_fdc, FUNC(upd765_device::data_w));
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}
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/***************************************************************************
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Game driver(s)
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***************************************************************************/
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ROM_START(junior80)
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ROM_REGION(0x0800, "maincpu",0)
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ROM_LOAD( "junior80_seria_321-ok.ic46", 0x0000, 0x0800, CRC(07f09842) SHA1(c7591a1006ae59d6353859ca401c57ff6eb1d4ff) )
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ROM_END
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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COMP( 1988, junior80, 0, 0, junior80, junior80, junior80_state, empty_init, "unknown", "Junior 80", MACHINE_IS_SKELETON )
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@ -18911,6 +18911,9 @@ jungleyo
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@source:junior.cpp
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junior //
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@source:junior80.cpp
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junior80 //
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@source:juno106.cpp
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juno106 //
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mks7 //
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@ -479,6 +479,7 @@ jtc.cpp
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juicebox.cpp
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juku.cpp
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junior.cpp
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junior80.cpp
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juno106.cpp
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juno6.cpp
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jupace.cpp
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