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Diffstat (limited to 'src/mess/drivers/pcw.c')
-rw-r--r-- | src/mess/drivers/pcw.c | 1403 |
1 files changed, 0 insertions, 1403 deletions
diff --git a/src/mess/drivers/pcw.c b/src/mess/drivers/pcw.c deleted file mode 100644 index 9af7f2fccd6..00000000000 --- a/src/mess/drivers/pcw.c +++ /dev/null @@ -1,1403 +0,0 @@ -// license:GPL-2.0+ -// copyright-holders:Kevin Thacker -/****************************************************************************** - - pcw.c - system driver - - Kevin Thacker [MESS driver] - - Thankyou to Jacob Nevins, Richard Fairhurst and Cliff Lawson, - for their documentation that I used for the development of this - driver. - - PCW came in 4 forms. - PCW8256, PCW8512, PCW9256, PCW9512 - - These systems were nicknamed "Joyce", apparently after a secretary who worked at - Amstrad plc. - - These machines were designed for wordprocessing and other business applications. - - The computer came with Locoscript (wordprocessor by Locomotive Software Ltd), - and CP/M+ (3.1). - - The original PCW8256 system came with a keyboard, green-screen monitor - (which had 2 3" 80 track, double sided disc drives mounted vertically in it), - and a dedicated printer. The other systems had different design but shared the - same hardware. - - Since it was primarily designed as a wordprocessor, there were not many games - written. - Some of the games available: - - Head Over Heels - - Infocom adventures (Hitchhikers Guide to the Galaxy etc) - - However, it can use the CP/M OS, there is a large variety of CPM software that will - run on it!!!!!!!!!!!!!! - - Later systems had: - - black/white monitor, - - dedicated printer was removed, and support for any printer was added - - 3" internal drive replaced by a 3.5" drive - - All the logic for the system, except the FDC was found in a Amstrad designed custom - chip. - - In the original PCW8256, there was no boot-rom. A boot-program was stored in the printer - chip, and this was activated when the PCW was first switched on. AFAIK there are no - dumps of this program, so I have written my own replacement. - - The boot-program performs a simple task: Load sector 0, track 0 to &f000 in ram, and execute - &f010. - - From here CP/M is booted, and the appropiate programs can be run. - - The hardware: - - Z80 CPU running at 3.4 MHz - - UPD765 FDC - - mono display - - beep (a fixed Hz tone which can be turned on/off) - - 720x256 (PAL) bitmapped display, 720x200 (NTSC) bitmapped display - - Amstrad CPC6128 style keyboard - - If there are special roms for any of the PCW series I would be interested in them - so I can implement the driver properly. - - From comp.sys.amstrad.8bit FAQ: - - "Amstrad made the following PCW systems : - - - 1) PCW8256 - - 2) PCW8512 - - 3) PCW9512 - - 4) PCW9512+ - - 5) PcW10 - - 6) PcW16 - - 1 had 180K drives, 2 had a 180K A drive and a 720K B drive, 3 had only - 720K drives. All subsequent models had 3.5" disks using CP/M format at - 720K until 6 when it switched to 1.44MB in MS-DOS format. The + of - model 4 was that it had a "real" parallel interface so could be sold - with an external printer such as the Canon BJ10. The PcW10 wasn't - really anything more than 4 in a more modern looking case. - - The PcW16 is a radical digression who's sole "raison d'etre" was to - make a true WYSIWYG product but this meant a change in the screen and - processor (to 16MHz) etc. which meant that it could not be kept - compatible with the previous models (though documents ARE compatible)" - - - TODO: - - Printer hardware emulation (8256 etc) - - Parallel port emulation (9512, 9512+, 10) - - emulation of serial hardware - - emulation of other hardware...? - ******************************************************************************/ -#include "emu.h" -#include "cpu/z80/z80.h" -#include "cpu/mcs48/mcs48.h" -#include "machine/i8243.h" -// upd765 interface -#include "machine/upd765.h" -// pcw video hardware -#include "includes/pcw.h" -// pcw/pcw16 beeper -#include "sound/beep.h" -#include "machine/ram.h" - -#include "pcw.lh" - -#define VERBOSE 1 -#define LOG(x) do { if (VERBOSE) logerror x; } while (0) - -static const UINT8 half_step_table[4] = { 0x01, 0x02, 0x04, 0x08 }; -static const UINT8 full_step_table[4] = { 0x03, 0x06, 0x0c, 0x09 }; - -void pcw_state::pcw_update_interrupt_counter() -{ - /* never increments past 15! */ - if (m_interrupt_counter==0x0f) - return; - - /* increment count */ - m_interrupt_counter++; -} - - -// set/reset INT and NMI lines -void pcw_state::pcw_update_irqs() -{ - // set NMI line, remains set until FDC interrupt type is changed - if(m_nmi_flag != 0) - m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); - else - m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); - - // set IRQ line, timer pulses IRQ line, all other devices hold it as necessary - if(m_fdc_interrupt_code == 1 && (m_system_status & 0x20)) - { - m_maincpu->set_input_line(0, ASSERT_LINE); - return; - } - - if(m_timer_irq_flag != 0) - { - m_maincpu->set_input_line(0, ASSERT_LINE); - return; - } - - m_maincpu->set_input_line(0, CLEAR_LINE); -} - -TIMER_CALLBACK_MEMBER(pcw_state::pcw_timer_pulse) -{ - m_timer_irq_flag = 0; - pcw_update_irqs(); -} - -/* callback for 1/300ths of a second interrupt */ -TIMER_DEVICE_CALLBACK_MEMBER(pcw_state::pcw_timer_interrupt) -{ - pcw_update_interrupt_counter(); - - m_timer_irq_flag = 1; - pcw_update_irqs(); - machine().scheduler().timer_set(attotime::from_usec(100), timer_expired_delegate(FUNC(pcw_state::pcw_timer_pulse),this)); -} - -/* PCW uses UPD765 in NON-DMA mode. FDC Ints are connected to /INT or - * /NMI depending on choice (see system control below) - * fdc interrupt callback. set/clear fdc int */ -WRITE_LINE_MEMBER( pcw_state::pcw_fdc_interrupt ) -{ - if (!state) - m_system_status &= ~(1<<5); - else - { - m_system_status |= (1<<5); - if(m_fdc_interrupt_code == 0) // NMI is held until interrupt type is changed - m_nmi_flag = 1; - } -} - - -/* Memory is banked in 16k blocks. - - The upper 16 bytes of block 3, contains the keyboard - state. This is updated by the hardware. - - block 3 could be paged into any bank, and this explains the - setup of the memory below. -*/ -static ADDRESS_MAP_START(pcw_map, AS_PROGRAM, 8, pcw_state ) - AM_RANGE(0x0000, 0x3fff) AM_READ_BANK("bank1") AM_WRITE_BANK("bank5") - AM_RANGE(0x4000, 0x7fff) AM_READ_BANK("bank2") AM_WRITE_BANK("bank6") - AM_RANGE(0x8000, 0xbfff) AM_READ_BANK("bank3") AM_WRITE_BANK("bank7") - AM_RANGE(0xc000, 0xffff) AM_READ_BANK("bank4") AM_WRITE_BANK("bank8") -ADDRESS_MAP_END - - -/* Keyboard is read by the MCU and sent as serial data to the gate array ASIC */ -READ8_MEMBER(pcw_state::pcw_keyboard_r) -{ - static const char *const keynames[] = { - "LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7", - "LINE8", "LINE9", "LINE10", "LINE11", "LINE12", "LINE13", "LINE14", "LINE15" - }; - - return ioport(keynames[offset])->read(); -} - -READ8_MEMBER(pcw_state::pcw_keyboard_data_r) -{ - return m_mcu_keyboard_data[offset]; -} - -/* ----------------------------------------------------------------------- - * PCW Banking - * ----------------------------------------------------------------------- */ - -void pcw_state::pcw_update_read_memory_block(int block, int bank) -{ - address_space &space = m_maincpu->space(AS_PROGRAM); - char block_name[10]; - - sprintf(block_name,"bank%d",block+1); - /* bank 3? */ - if (bank == 3) - { - /* when upper 16 bytes are accessed use keyboard read - handler */ - space.install_read_handler( - block * 0x04000 + 0x3ff0, block * 0x04000 + 0x3fff, read8_delegate(FUNC(pcw_state::pcw_keyboard_data_r),this)); -// LOG(("MEM: read block %i -> bank %i\n",block,bank)); - } - else - { - /* restore bank handler across entire block */ - space.install_read_bank(block * 0x04000 + 0x0000, block * 0x04000 + 0x3fff,block_name); -// LOG(("MEM: read block %i -> bank %i\n",block,bank)); - } - membank(block_name)->set_base(m_ram->pointer() + ((bank * 0x4000) % m_ram->size())); -} - - - -void pcw_state::pcw_update_write_memory_block(int block, int bank) -{ - char block_name[10]; - - sprintf(block_name,"bank%d",block+5); - membank(block_name)->set_base(m_ram->pointer() + ((bank * 0x4000) % m_ram->size())); -// LOG(("MEM: write block %i -> bank %i\n",block,bank)); -} - - -/* ----------------------------------------------------------------------- */ - -/* &F4 O b7-b4: when set, force memory reads to access the same bank as -writes for &C000, &0000, &8000, and &4000 respectively */ - -void pcw_state::pcw_update_mem(int block, int data) -{ - /* expansion ram select. - if block is 0-7, selects internal ram instead for read/write - */ - if (data & 0x080) - { - int bank; - - /* same bank for reading and writing */ - bank = data & 0x7f; - - pcw_update_read_memory_block(block, bank); - pcw_update_write_memory_block(block, bank); - } - else - { - /* specify a different bank for reading and writing */ - int write_bank; - int read_bank; - int mask=0; - - switch (block) - { - case 0: - { - mask = (1<<6); - } - break; - - case 1: - { - mask = (1<<4); - } - break; - - case 2: - { - mask = (1<<5); - } - break; - - case 3: - { - mask = (1<<7); - } - break; - } - - if (m_bank_force & mask) - { - read_bank = data & 0x07; - } - else - { - read_bank = (data>>4) & 0x07; - } - - pcw_update_read_memory_block(block, read_bank); - - write_bank = data & 0x07; - pcw_update_write_memory_block(block, write_bank); - } - - /* if boot is active, page in fake ROM */ -/* if ((m_boot) && (block==0)) - { - unsigned char *FakeROM; - - FakeROM = &memregion("maincpu")->base()[0x010000]; - - membank("bank1")->set_base(FakeROM); - }*/ -} - -/* from Jacob Nevins docs */ -int pcw_state::pcw_get_sys_status() -{ - return - m_interrupt_counter - | (m_screen->vblank() ? 0x40 : 0x00) - | (ioport("EXTRA")->read() & 0x010) - | (m_system_status & 0x20); -} - -READ8_MEMBER(pcw_state::pcw_interrupt_counter_r) -{ - int data; - - /* from Jacob Nevins docs */ - - /* get data */ - data = pcw_get_sys_status(); - /* clear int counter */ - m_interrupt_counter = 0; - /* check interrupts */ - pcw_update_irqs(); - /* return data */ - //LOG(("SYS: IRQ counter read, returning %02x\n",data)); - return data; -} - - -WRITE8_MEMBER(pcw_state::pcw_bank_select_w) -{ - //LOG(("BANK: %2x %x\n",offset, data)); - m_banks[offset] = data; - - pcw_update_mem(offset, data); -// popmessage("RAM Banks: %02x %02x %02x %02x Lock:%02x",m_banks[0],m_banks[1],m_banks[2],m_banks[3],m_bank_force); -} - -WRITE8_MEMBER(pcw_state::pcw_bank_force_selection_w) -{ - m_bank_force = data; - - pcw_update_mem(0, m_banks[0]); - pcw_update_mem(1, m_banks[1]); - pcw_update_mem(2, m_banks[2]); - pcw_update_mem(3, m_banks[3]); -} - - -WRITE8_MEMBER(pcw_state::pcw_roller_ram_addr_w) -{ - /* - Address of roller RAM. b7-5: bank (0-7). b4-1: address / 512. */ - - m_roller_ram_addr = (((data>>5) & 0x07)<<14) | - ((data & 0x01f)<<9); - LOG(("Roller-RAM: Address set to 0x%05x\n",m_roller_ram_addr)); -} - -WRITE8_MEMBER(pcw_state::pcw_pointer_table_top_scan_w) -{ - m_roller_ram_offset = data; - LOG(("Roller-RAM: offset set to 0x%05x\n",m_roller_ram_offset)); -} - -WRITE8_MEMBER(pcw_state::pcw_vdu_video_control_register_w) -{ - m_vdu_video_control_register = data; - LOG(("Roller-RAM: control reg set to 0x%02x\n",data)); -} - -WRITE8_MEMBER(pcw_state::pcw_system_control_w) -{ - upd765a_device *fdc = machine().device<upd765a_device>("upd765"); - LOG(("SYSTEM CONTROL: %d\n",data)); - - switch (data) - { - /* end bootstrap */ - case 0: - { - m_boot = 0; - pcw_update_mem(0, m_banks[0]); - } - break; - - /* reboot */ - case 1: - { - m_maincpu->set_input_line(INPUT_LINE_RESET, PULSE_LINE); - popmessage("SYS: Reboot"); - } - break; - - /* connect fdc interrupt to nmi */ - case 2: - { - int fdc_previous_interrupt_code = m_fdc_interrupt_code; - - m_fdc_interrupt_code = 0; - - /* previously connected to INT? */ - if (fdc_previous_interrupt_code == 1) - { - /* yes */ - - pcw_update_irqs(); - } - - } - break; - - - /* connect fdc interrupt to interrupt */ - case 3: - { - int fdc_previous_interrupt_code = m_fdc_interrupt_code; - - /* connect to INT */ - m_fdc_interrupt_code = 1; - - /* previously connected to NMI? */ - if (fdc_previous_interrupt_code == 0) - { - /* yes */ - - /* clear nmi interrupt */ - m_nmi_flag = 0; - } - - /* re-issue interrupt */ - pcw_update_irqs(); - } - break; - - - /* connect fdc interrupt to neither */ - case 4: - { - int fdc_previous_interrupt_code = m_fdc_interrupt_code; - - m_fdc_interrupt_code = 2; - - /* previously connected to NMI or INT? */ - if ((fdc_previous_interrupt_code == 0) || (fdc_previous_interrupt_code == 1)) - { - /* yes */ - - /* Clear NMI */ - m_nmi_flag = 0; - } - pcw_update_irqs(); - - } - break; - - /* set fdc terminal count */ - case 5: - { - fdc->tc_w(true); - } - break; - - /* clear fdc terminal count */ - case 6: - { - fdc->tc_w(false); - } - break; - - /* screen on */ - case 7: - { - } - break; - - /* screen off */ - case 8: - { - } - break; - - /* disc motor on */ - case 9: - { - floppy_image_device *floppy; - floppy = machine().device<floppy_connector>(":upd765:0")->get_device(); - if(floppy) - floppy->mon_w(0); - floppy = machine().device<floppy_connector>(":upd765:1")->get_device(); - if(floppy) - floppy->mon_w(0); - } - break; - - /* disc motor off */ - case 10: - { - floppy_image_device *floppy; - floppy = machine().device<floppy_connector>(":upd765:0")->get_device(); - if(floppy) - floppy->mon_w(1); - floppy = machine().device<floppy_connector>(":upd765:1")->get_device(); - if(floppy) - floppy->mon_w(1); - } - break; - - /* beep on */ - case 11: - { - m_beeper->set_state(1); - } - break; - - /* beep off */ - case 12: - { - m_beeper->set_state(0); - } - break; - - } -} - -READ8_MEMBER(pcw_state::pcw_system_status_r) -{ - /* from Jacob Nevins docs */ - UINT8 ret = pcw_get_sys_status(); - - return ret; -} - -/* read from expansion hardware - additional hardware not part of -the PCW custom ASIC */ -READ8_MEMBER(pcw_state::pcw_expansion_r) -{ - logerror("pcw expansion r: %04x\n",offset+0x080); - - switch (offset+0x080) - { - case 0x0e0: - { - /* spectravideo joystick */ - if (ioport("EXTRA")->read() & 0x020) - { - return ioport("SPECTRAVIDEO")->read(); - } - else - { - return 0x0ff; - } - } - - case 0x09f: - { - /* kempston joystick */ - return ioport("KEMPSTON")->read(); - } - - case 0x0e1: - case 0x0e3: - { - return 0x7f; - } - - case 0x085: - { - return 0x0fe; - } - - case 0x087: - { - return 0x0ff; - } - - } - - /* result from floating bus/no peripherial at this port */ - return 0x0ff; -} - -/* write to expansion hardware - additional hardware not part of -the PCW custom ASIC */ -WRITE8_MEMBER(pcw_state::pcw_expansion_w) -{ - logerror("pcw expansion w: %04x %02x\n",offset+0x080, data); -} - -void pcw_state::pcw_printer_fire_pins(UINT16 pins) -{ - int x,line; - INT32 feed = (m_paper_feed / 2); - - for(x=feed+PCW_PRINTER_HEIGHT-16;x<feed+PCW_PRINTER_HEIGHT-7;x++) - { - line = x % PCW_PRINTER_HEIGHT; - if((pins & 0x01) == 0) - m_prn_output->pix16(line, m_printer_headpos) = (UINT16)(pins & 0x01); - pins >>= 1; - } -// if(m_printer_headpos < PCW_PRINTER_WIDTH) -// m_printer_headpos++; -} - -WRITE8_MEMBER(pcw_state::pcw_printer_data_w) -{ - m_printer_data = data; - machine().device<upi41_cpu_device>("printer_mcu")->upi41_master_w(space,0,data); - logerror("PRN [0xFC]: Sent command %02x\n",data); -} - -WRITE8_MEMBER(pcw_state::pcw_printer_command_w) -{ - m_printer_command = data; - machine().device<upi41_cpu_device>("printer_mcu")->upi41_master_w(space,1,data); - logerror("PRN [0xFD]: Sent command %02x\n",data); -} - -// print error type -// should return 0xF8 if there are no errors -// 0 = underrun -// 1 = printer controller RAM fault -// 3 = bad command -// 5 = print error -// anything else = no printer -READ8_MEMBER(pcw_state::pcw_printer_data_r) -{ - return machine().device<upi41_cpu_device>("printer_mcu")->upi41_master_r(space,0); -} - -// printer status -// bit 7 - bail bar in -// bit 6 - not currently executing a command -// bit 5 - printer RAM is full -// bit 4 - print head is not at left margin -// bit 3 - sheet feeder is present -// bit 2 - paper is present -// bit 1 - busy -// bit 0 - controller fault -READ8_MEMBER(pcw_state::pcw_printer_status_r) -{ - return machine().device<upi41_cpu_device>("printer_mcu")->upi41_master_r(space,1); -} - -/* MCU handlers */ -/* I/O ports: (likely to be completely wrong...) - * (write) - * all are active low - * P1: pins 0-7 - * P2 bit 0: pin 8 - * P2 bit 1: serial shift/store clock - * P2 bit 2: serial shift store data - * P2 bit 3: serial shift/store strobe - * P2 bit 4: print head motor - * P2 bit 5: paper feed motor - * P2 bit 6: fire pins - * (read) - * P2 bit 7: bail bar status (0 if out) - * T0: Paper sensor (?) - * T1: Print head location (1 if not at left margin) - */ -TIMER_CALLBACK_MEMBER(pcw_state::pcw_stepper_callback) -{ - //popmessage("PRN: P2 bits %s %s %s\nSerial: %02x\nHeadpos: %i",m_printer_p2 & 0x40 ? " " : "6",m_printer_p2 & 0x20 ? " " : "5",m_printer_p2 & 0x10 ? " " : "4",m_printer_shift_output,m_printer_headpos); - if((m_printer_p2 & 0x10) == 0) // print head motor active - { - UINT8 stepper_state = (m_printer_shift_output >> 4) & 0x0f; - if(stepper_state == full_step_table[(m_head_motor_state + 1) & 0x03]) - { - m_printer_headpos += 2; - m_head_motor_state++; - logerror("Printer head moved forward by 2 to %i\n",m_printer_headpos); - } - if(stepper_state == half_step_table[(m_head_motor_state + 1) & 0x03]) - { - m_printer_headpos += 1; - m_head_motor_state++; - logerror("Printer head moved forward by 1 to %i\n",m_printer_headpos); - } - if(stepper_state == full_step_table[(m_head_motor_state - 1) & 0x03]) - { - m_printer_headpos -= 2; - m_head_motor_state--; - logerror("Printer head moved back by 2 to %i\n",m_printer_headpos); - } - if(stepper_state == half_step_table[(m_head_motor_state - 1) & 0x03]) - { - m_printer_headpos -= 1; - m_head_motor_state--; - logerror("Printer head moved back by 1 to %i\n",m_printer_headpos); - } - if(m_printer_headpos < 0) - m_printer_headpos = 0; - if(m_printer_headpos > PCW_PRINTER_WIDTH) - m_printer_headpos = PCW_PRINTER_WIDTH; - m_head_motor_state &= 0x03; - m_printer_p2 |= 0x10; - } - if((m_printer_p2 & 0x20) == 0) // line feed motor active - { - UINT8 stepper_state = m_printer_shift_output & 0x0f; - if(stepper_state == full_step_table[(m_linefeed_motor_state + 1) & 0x03]) - { - m_paper_feed++; - if(m_paper_feed > PCW_PRINTER_HEIGHT*2) - m_paper_feed = 0; - m_linefeed_motor_state++; - } - if(stepper_state == half_step_table[(m_linefeed_motor_state + 1) & 0x03]) - { - m_paper_feed++; - if(m_paper_feed > PCW_PRINTER_HEIGHT*2) - m_paper_feed = 0; - m_linefeed_motor_state++; - } - m_linefeed_motor_state &= 0x03; - m_printer_p2 |= 0x20; - } -} - -TIMER_CALLBACK_MEMBER(pcw_state::pcw_pins_callback) -{ - pcw_printer_fire_pins(m_printer_pins); - m_printer_p2 |= 0x40; -} - -READ8_MEMBER(pcw_state::mcu_printer_p1_r) -{ -// logerror("PRN: MCU reading data from P1\n"); - return m_printer_pins & 0x00ff; -} - -WRITE8_MEMBER(pcw_state::mcu_printer_p1_w) -{ - m_printer_pins = (m_printer_pins & 0x0100) | data; - //popmessage("PRN: Print head position = %i",m_printer_headpos); - logerror("PRN: MCU writing %02x to P1 [%03x/%03x]\n",data,m_printer_pins,~m_printer_pins & 0x1ff); -} - -READ8_MEMBER(pcw_state::mcu_printer_p2_r) -{ - UINT8 ret = 0x00; -// logerror("PRN: MCU reading data from P2\n"); - ret |= 0x80; // make sure bail bar is in - ret |= (m_printer_p2 & 0x70); - ret |= (m_printer_pins & 0x100) ? 0x01 : 0x00; // ninth pin - ret |= 0x0e; - return ret; -} - -WRITE8_MEMBER(pcw_state::mcu_printer_p2_w) -{ - //logerror("PRN: MCU writing %02x to P2\n",data); - m_printer_p2 = data & 0x70; - - // handle shift/store - m_printer_serial = data & 0x04; // data - if((data & 0x02) != 0) // clock - { - m_printer_shift <<= 1; - if(m_printer_serial == 0) - m_printer_shift &= ~0x01; - else - m_printer_shift |= 0x01; - } - if((data & 0x08) != 0) // strobe - { - logerror("Strobe active [%02x]\n",m_printer_shift); - m_printer_shift_output = m_printer_shift; - m_prn_stepper->adjust(PERIOD_OF_555_MONOSTABLE(22000,0.00000001)); - } - - if(data & 0x40) - m_prn_pins->adjust(PERIOD_OF_555_MONOSTABLE(22000,0.0000000068)); - - if(data & 0x01) - m_printer_pins |= 0x0100; - else - m_printer_pins &= ~0x0100; - m_printer_p2_prev = data; -} - -// Paper sensor -READ8_MEMBER(pcw_state::mcu_printer_t1_r) -{ - return 1; -} - -// Print head location (0 if at left margin, otherwise 1) -READ8_MEMBER(pcw_state::mcu_printer_t0_r) -{ - if(m_printer_headpos == 0) - return 0; - else - return 1; -} - -/* - * Keyboard MCU (i8048) - * P1 = keyboard scan row select (low 8 bits) - * P2 = bits 7-4: keyboard scan row select (high 4 bits) - * bit 1: keyboard serial clock - * bit 0: keyboard serial data - */ -void pcw_state::mcu_transmit_serial(UINT8 bit) -{ - int seq; - - /* Keyboard data is sent in serial from the MCU through the keyboard port, to the ASIC - Sends a string of 12-bit sequences, first 4 bits are the RAM location (from &3ff0), - then 8 bits for the data to be written there. */ - seq = m_mcu_transmit_count % 12; - if(seq < 4) - { - if(bit == 0) - m_mcu_selected &= ~(8 >> seq); - else - m_mcu_selected |= (8 >> seq); - } - else - { - seq -= 4; - if(bit == 0) - m_mcu_buffer &= ~(128 >> seq); - else - m_mcu_buffer |= (128 >> seq); - } - m_mcu_transmit_count++; - if(m_mcu_transmit_count >= 12) - { - m_mcu_keyboard_data[m_mcu_selected] = m_mcu_buffer; - m_mcu_transmit_count = 0; - } -} - -READ8_MEMBER(pcw_state::mcu_kb_scan_r) -{ - return m_kb_scan_row & 0xff; -} - -WRITE8_MEMBER(pcw_state::mcu_kb_scan_w) -{ - m_kb_scan_row = (m_kb_scan_row & 0xff00) | data; -} - -READ8_MEMBER(pcw_state::mcu_kb_scan_high_r) -{ - return (m_kb_scan_row & 0xff00) >> 8; -} - -WRITE8_MEMBER(pcw_state::mcu_kb_scan_high_w) -{ - if((m_mcu_prev & 0x02) && !(data & 0x02)) // bit is transmitted on high-to-low clock transition - { - mcu_transmit_serial(data & 0x01); - m_mcu_transmit_reset_seq = 0; - } - - if((m_mcu_prev & 0x01) != (data & 0x01)) // two high->low transitions on the data pin signals the beginning of a new transfer - { - m_mcu_transmit_reset_seq++; - if(m_mcu_transmit_reset_seq > 3) - m_mcu_transmit_count = 0; - } - - m_kb_scan_row = (m_kb_scan_row & 0x00ff) | ((data & 0xff) << 8); - m_mcu_prev = data; -} - -READ8_MEMBER(pcw_state::mcu_kb_data_r) -{ - UINT16 scan_bits = ((m_kb_scan_row & 0xf000) >> 4) | (m_kb_scan_row & 0xff); - int x; - - for(x=0;x<12;x++) - { - if(!(scan_bits & 1)) - return pcw_keyboard_r(space,x); - else - scan_bits >>= 1; - } - return 0xff; -} - -READ8_MEMBER(pcw_state::mcu_kb_t1_r) -{ - return 1; -} - -READ8_MEMBER(pcw_state::mcu_kb_t0_r) -{ - return 0; -} - -/* TODO: Implement parallel port! */ -READ8_MEMBER(pcw_state::pcw9512_parallel_r) -{ - if (offset==1) - { - return 0xff^0x020; - } - - logerror("pcw9512 parallel r: offs: %04x\n", (int) offset); - return 0x00; -} - -/* TODO: Implement parallel port! */ -WRITE8_MEMBER(pcw_state::pcw9512_parallel_w) -{ - logerror("pcw9512 parallel w: offs: %04x data: %02x\n",offset,data); -} - -static ADDRESS_MAP_START(pcw_io, AS_IO, 8, pcw_state ) - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x000, 0x001) AM_MIRROR(0x7e) AM_DEVICE("upd765", upd765a_device, map) - AM_RANGE(0x080, 0x0ef) AM_READWRITE(pcw_expansion_r, pcw_expansion_w) - AM_RANGE(0x0f0, 0x0f3) AM_WRITE( pcw_bank_select_w) - AM_RANGE(0x0f4, 0x0f4) AM_READWRITE(pcw_interrupt_counter_r, pcw_bank_force_selection_w) - AM_RANGE(0x0f5, 0x0f5) AM_WRITE( pcw_roller_ram_addr_w) - AM_RANGE(0x0f6, 0x0f6) AM_WRITE( pcw_pointer_table_top_scan_w) - AM_RANGE(0x0f7, 0x0f7) AM_WRITE( pcw_vdu_video_control_register_w) - AM_RANGE(0x0f8, 0x0f8) AM_READWRITE(pcw_system_status_r, pcw_system_control_w) - AM_RANGE(0x0fc, 0x0fc) AM_READWRITE(pcw_printer_data_r, pcw_printer_data_w) - AM_RANGE(0x0fd, 0x0fd) AM_READWRITE(pcw_printer_status_r, pcw_printer_command_w) -ADDRESS_MAP_END - - - -static ADDRESS_MAP_START(pcw9512_io, AS_IO, 8, pcw_state ) - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x000, 0x001) AM_MIRROR(0x7e) AM_DEVICE("upd765", upd765a_device, map) - AM_RANGE(0x080, 0x0ef) AM_READWRITE(pcw_expansion_r, pcw_expansion_w) - AM_RANGE(0x0f0, 0x0f3) AM_WRITE( pcw_bank_select_w) - AM_RANGE(0x0f4, 0x0f4) AM_READWRITE(pcw_interrupt_counter_r, pcw_bank_force_selection_w) - AM_RANGE(0x0f5, 0x0f5) AM_WRITE( pcw_roller_ram_addr_w) - AM_RANGE(0x0f6, 0x0f6) AM_WRITE( pcw_pointer_table_top_scan_w) - AM_RANGE(0x0f7, 0x0f7) AM_WRITE( pcw_vdu_video_control_register_w) - AM_RANGE(0x0f8, 0x0f8) AM_READWRITE(pcw_system_status_r, pcw_system_control_w) - AM_RANGE(0x0fc, 0x0fd) AM_READWRITE(pcw9512_parallel_r, pcw9512_parallel_w) -ADDRESS_MAP_END - -/* i8041 MCU */ -static ADDRESS_MAP_START(pcw_printer_io, AS_IO, 8, pcw_state ) - AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_READWRITE(mcu_printer_p2_r,mcu_printer_p2_w) - AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(mcu_printer_p1_r, mcu_printer_p1_w) - AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(mcu_printer_t1_r) - AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_READ(mcu_printer_t0_r) -ADDRESS_MAP_END - -static ADDRESS_MAP_START(pcw_keyboard_io, AS_IO, 8, pcw_state ) - AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(mcu_kb_scan_r,mcu_kb_scan_w) - AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_READWRITE(mcu_kb_scan_high_r,mcu_kb_scan_high_w) - AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(mcu_kb_t1_r) - AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_READ(mcu_kb_t0_r) - AM_RANGE(MCS48_PORT_BUS, MCS48_PORT_BUS) AM_READ(mcu_kb_data_r) -ADDRESS_MAP_END - - -TIMER_CALLBACK_MEMBER(pcw_state::setup_beep) -{ - m_beeper->set_state(0); - m_beeper->set_frequency(3750); -} - - -void pcw_state::machine_start() -{ - m_fdc_interrupt_code = 2; -} - -void pcw_state::machine_reset() -{ - UINT8* code = memregion("printer_mcu")->base(); - int x; - /* ram paging is actually undefined at power-on */ - - m_bank_force = 0xf0; // banks are locked for CPC-style paging - Batman expects this - - m_banks[0] = 0x80; - m_banks[1] = 0x81; - m_banks[2] = 0x82; - m_banks[3] = 0x83; - - pcw_update_mem(0, m_banks[0]); - pcw_update_mem(1, m_banks[1]); - pcw_update_mem(2, m_banks[2]); - pcw_update_mem(3, m_banks[3]); - - m_boot = 0; // System starts up in bootstrap mode, disabled until it's possible to emulate it. - - /* copy boot code into RAM - yes, it's skipping a step */ - memset(m_ram->pointer(),0x00,m_ram->size()); - for(x=0;x<256;x++) - m_ram->pointer()[x+2] = code[x+0x300]; - - /* and hack our way past the MCU side of the boot process */ - code[0x01] = 0x40; - - m_printer_status = 0xff; - m_printer_command = 0xff; - m_printer_data = 0x00; - m_printer_headpos = 0x00; // bring printer head to left margin - m_printer_shift = 0; - m_printer_shift_output = 0; -} - -DRIVER_INIT_MEMBER(pcw_state,pcw) -{ - m_maincpu->set_input_line_vector(0, 0x0ff); - - /* lower 4 bits are interrupt counter */ - m_system_status = 0x000; - m_system_status &= ~((1<<6) | (1<<5) | (1<<4)); - - m_interrupt_counter = 0; - - m_roller_ram_offset = 0; - - /* timer interrupt */ - machine().scheduler().timer_set(attotime::zero, timer_expired_delegate(FUNC(pcw_state::setup_beep),this)); - - m_prn_stepper = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(pcw_state::pcw_stepper_callback),this)); - m_prn_pins = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(pcw_state::pcw_pins_callback),this)); -} - - -/* -b7: k2 k1 [+] . , space V X Z del< alt -b6: k3 k5 1/2 / M N B C lock k. -b5: k6 k4 shift ; K J F D A enter -b4: k9 k8 k7 ?? L H G S tab f8 -b3: paste copy # P I Y T W Q [-] -b2: f2 cut return [ O U R E stop can -b1: k0 ptr ] - 9 7 5 3 2 extra -b0: f4 exit del> = 0 8 6 4 1 f6 - &3FF0 &3FF1 &3FF2 &3FF3 &3FF4 &3FF5 &3FF6 &3FF7 &3FF8 &3FF9 &3FFA - -2008-05 FP: -Small note about atural keyboard: currently, -- "Paste" is mapped to 'F9' -- "Exit" is mapped to 'F10' -- "Ptr" is mapped to 'Print Screen' -- "Cut" is mapped to 'F11' -- "Copy" is mapped to 'F12' -- "Stop" is mapped to 'Esc' -- [+] is mapped to 'Page Up' -- [-] is mapped to 'Page Down' -- "Extra" is mapped to 'Home' -- "Can" is mapped to 'Insert' -*/ - -static INPUT_PORTS_START(pcw) - /* keyboard "ports". These are poked automatically into the PCW address space */ - - PORT_START("LINE0") /* 0x03ff0 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3 F4") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CHAR(UCHAR_MAMEKEY(F4)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1 F2") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CHAR(UCHAR_MAMEKEY(F2)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Paste") PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(F9)) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) - - PORT_START("LINE1") /* 0x03ff1 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Exit") PORT_CODE(KEYCODE_PGDN) PORT_CHAR(UCHAR_MAMEKEY(F10)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ptr") PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cut") PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(F11)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Copy") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(F12)) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_CHAR(UCHAR_MAMEKEY(UP)) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) - - PORT_START("LINE2") /* 0x03ff2 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEL>") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('#') PORT_CHAR('>') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT(0x40, 0xff, IPT_UNUSED) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[+]") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(PGUP)) // 1st key on the left from 'Spacebar' - - PORT_START("LINE3") /* 0x03ff3 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\xA7') PORT_CHAR('<') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') - - PORT_START("LINE4") /* 0x03ff4 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') - - PORT_START("LINE5") /* 0x03ff5 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - - PORT_START("LINE6") /* 0x03ff6 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('\'') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') - - PORT_START("LINE7") /* 0x03ff7 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('\xA3') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - - PORT_START("LINE8") /* 0x03ff8 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Stop") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift Lock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') - - PORT_START("LINE9") /* 0x03ff9 */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5 F6") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CHAR(UCHAR_MAMEKEY(F6)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Extra") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(HOME)) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Can") PORT_CODE(KEYCODE_PGUP) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[-]") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(PGDN)) // 1st key on the right from 'Spacebar' - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7 F8") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_CHAR(UCHAR_MAMEKEY(F8)) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEL<") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) - - PORT_START("LINE10") /* 0x03ffa */ - PORT_BIT(0x07f,0x7f, IPT_UNUSED) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alt") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_CHAR(UCHAR_MAMEKEY(RALT)) - - /* at this point the following reflect the above key combinations but in a incomplete - way. No details available at this time */ - PORT_START("LINE11") /* 0x03ffb */ - PORT_BIT(0xff, 0xff, IPT_UNUSED) - - PORT_START("LINE12") /* 0x03ffc */ - PORT_BIT(0xff, 0xff, IPT_UNUSED) - - /* 2008-05 FP: not sure if this key is correct, "Caps Lock" is already mapped above. - For now, I let it with no default mapping. */ - PORT_START("LINE13") /* 0x03ffd */ - PORT_BIT(0xff, 0xff, IPT_UNUSED) -// PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT LOCK") //PORT_CODE(KEYCODE_CAPSLOCK) -// PORT_BIT(0x80, 0xff, IPT_UNUSED) - - PORT_START("LINE14") /* 0x03ffe */ - PORT_BIT ( 0xff, 0xff, IPT_UNUSED ) - - PORT_START("LINE15") /* 0x03fff */ - PORT_BIT ( 0xff, 0xff, IPT_UNUSED ) - - /* from here on are the pretend dipswitches for machine config etc */ - PORT_START("EXTRA") - /* frame rate option */ - PORT_DIPNAME( 0x10, 0x010, "50/60Hz Frame Rate Option") - PORT_DIPSETTING( 0x00, "60Hz") - PORT_DIPSETTING( 0x10, "50Hz" ) - /* spectravideo joystick enabled */ - PORT_DIPNAME( 0x20, 0x020, "Spectravideo Joystick Enabled") - PORT_DIPSETTING( 0x00, DEF_STR(No)) - PORT_DIPSETTING( 0x20, DEF_STR(Yes) ) - - /* Spectravideo joystick */ - /* bit 7: 0 - 6: 1 - 5: 1 - 4: 1 if in E position - 3: 1 if N - 2: 1 if W - 1: 1 if fire pressed - 0: 1 if S - */ - - PORT_START("SPECTRAVIDEO") - PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) - PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_BUTTON1) - PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) - PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP) - PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) - PORT_BIT(0x020, 0x020, IPT_UNUSED) - PORT_BIT(0x040, 0x040, IPT_UNUSED) - PORT_BIT(0x080, 0x00, IPT_UNUSED) - - /* Kempston joystick */ - PORT_START("KEMPSTON") - PORT_BIT( 0xff, 0x00, IPT_UNUSED) -INPUT_PORTS_END - -static SLOT_INTERFACE_START( pcw_floppies ) - SLOT_INTERFACE( "3dsdd", FLOPPY_3_DSDD ) -SLOT_INTERFACE_END - -/* PCW8256, PCW8512, PCW9256 */ -static MACHINE_CONFIG_START( pcw, pcw_state ) - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", Z80, 4000000) /* clock supplied to chip, but in reality it is 3.4 MHz */ - MCFG_CPU_PROGRAM_MAP(pcw_map) - MCFG_CPU_IO_MAP(pcw_io) - - MCFG_CPU_ADD("printer_mcu", I8041, 11000000) // 11MHz - MCFG_CPU_IO_MAP(pcw_printer_io) - - MCFG_CPU_ADD("keyboard_mcu", I8048, 5000000) // 5MHz - MCFG_CPU_IO_MAP(pcw_keyboard_io) - -// MCFG_QUANTUM_TIME(attotime::from_hz(50)) - MCFG_QUANTUM_PERFECT_CPU("maincpu") - - - /* video hardware */ - MCFG_SCREEN_ADD("screen", RASTER) - MCFG_SCREEN_REFRESH_RATE(50) - MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ - MCFG_SCREEN_SIZE(PCW_SCREEN_WIDTH, PCW_SCREEN_HEIGHT) - MCFG_SCREEN_VISIBLE_AREA(0, PCW_SCREEN_WIDTH-1, 0, PCW_SCREEN_HEIGHT-1) - MCFG_SCREEN_UPDATE_DRIVER(pcw_state, screen_update_pcw) - MCFG_SCREEN_PALETTE("palette") - - MCFG_PALETTE_ADD("palette", PCW_NUM_COLOURS) - MCFG_PALETTE_INIT_OWNER(pcw_state, pcw) - - /* sound hardware */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("beeper", BEEP, 0) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) - - MCFG_UPD765A_ADD("upd765", true, true) - MCFG_UPD765_INTRQ_CALLBACK(WRITELINE(pcw_state, pcw_fdc_interrupt)) - - MCFG_FLOPPY_DRIVE_ADD("upd765:0", pcw_floppies, "3dsdd", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD("upd765:1", pcw_floppies, "3dsdd", floppy_image_device::default_floppy_formats) - - MCFG_SOFTWARE_LIST_ADD("disk_list","pcw") - - /* internal ram */ - MCFG_RAM_ADD(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("256K") - - MCFG_TIMER_DRIVER_ADD_PERIODIC("pcw_timer", pcw_state, pcw_timer_interrupt, attotime::from_hz(300)) -MACHINE_CONFIG_END - -static MACHINE_CONFIG_DERIVED( pcw8256, pcw ) - MCFG_SCREEN_ADD("printer",RASTER) - MCFG_SCREEN_REFRESH_RATE(50) - MCFG_SCREEN_SIZE( PCW_PRINTER_WIDTH, PCW_PRINTER_HEIGHT ) - MCFG_SCREEN_VISIBLE_AREA(0, PCW_PRINTER_WIDTH-1, 0, PCW_PRINTER_HEIGHT-1) - MCFG_SCREEN_UPDATE_DRIVER(pcw_state, screen_update_pcw_printer) - MCFG_SCREEN_PALETTE("palette") - - MCFG_DEFAULT_LAYOUT( layout_pcw ) - -MACHINE_CONFIG_END - -static MACHINE_CONFIG_DERIVED( pcw8512, pcw ) - MCFG_SCREEN_ADD("printer",RASTER) - MCFG_SCREEN_REFRESH_RATE(50) - MCFG_SCREEN_SIZE( PCW_PRINTER_WIDTH, PCW_PRINTER_HEIGHT ) - MCFG_SCREEN_VISIBLE_AREA(0, PCW_PRINTER_WIDTH-1, 0, PCW_PRINTER_HEIGHT-1) - MCFG_SCREEN_UPDATE_DRIVER(pcw_state, screen_update_pcw_printer) - MCFG_SCREEN_PALETTE("palette") - - MCFG_DEFAULT_LAYOUT( layout_pcw ) - - /* internal ram */ - MCFG_RAM_MODIFY(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("512K") -MACHINE_CONFIG_END - -/* PCW9512, PCW9512+, PCW10 */ -static MACHINE_CONFIG_DERIVED( pcw9512, pcw ) - MCFG_CPU_MODIFY( "maincpu" ) - MCFG_CPU_IO_MAP(pcw9512_io) - - /* internal ram */ - MCFG_RAM_MODIFY(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("512K") -MACHINE_CONFIG_END - - -/*************************************************************************** - - Game driver(s) - -***************************************************************************/ - -ROM_START(pcw8256) - ROM_REGION(0x10000,"maincpu",0) - ROM_FILL(0x0000,0x10000,0x00) \ - ROM_REGION(0x400,"printer_mcu",0) // i8041 9-pin dot-matrix - ROM_LOAD("40026.ic701", 0, 0x400, CRC(ee8890ae) SHA1(91679cc5e07464ac55ef9a10f7095b2438223332)) - ROM_REGION(0x400,"keyboard_mcu",0) // i8048 - ROM_LOAD("40027.ic801", 0, 0x400, CRC(25260958) SHA1(210e7e25228c79d2920679f217d68e4f14055825)) -ROM_END - -ROM_START(pcw8512) - ROM_REGION(0x10000,"maincpu",0) - ROM_FILL(0x0000,0x10000,0x00) \ - ROM_REGION(0x400,"printer_mcu",0) // i8041 9-pin dot-matrix - ROM_LOAD("40026.ic701", 0, 0x400, CRC(ee8890ae) SHA1(91679cc5e07464ac55ef9a10f7095b2438223332)) - ROM_REGION(0x400,"keyboard_mcu",0) // i8048 - ROM_LOAD("40027.ic801", 0, 0x400, CRC(25260958) SHA1(210e7e25228c79d2920679f217d68e4f14055825)) -ROM_END - -ROM_START(pcw9256) - ROM_REGION(0x10000,"maincpu",0) - ROM_FILL(0x0000,0x10000,0x00) \ - ROM_REGION(0x2000,"printer_mcu",0) // i8041 9-pin dot-matrix - ROM_LOAD("40026.ic701", 0, 0x400, CRC(ee8890ae) SHA1(91679cc5e07464ac55ef9a10f7095b2438223332)) - ROM_REGION(0x400,"keyboard_mcu",0) // i8048 - ROM_LOAD("40027.ic801", 0, 0x400, CRC(25260958) SHA1(210e7e25228c79d2920679f217d68e4f14055825)) -ROM_END - -ROM_START(pcw9512) - ROM_REGION(0x10000,"maincpu",0) - ROM_FILL(0x0000,0x10000,0x00) \ - ROM_REGION(0x2000,"printer_mcu",0) // i8041 daisywheel (schematics say i8039?) - ROM_LOAD("40103.ic109", 0, 0x2000, CRC(a64d450a) SHA1(ebbf0ef19d39912c1c127c748514dd299915f88b)) - ROM_REGION(0x400,"keyboard_mcu",0) // i8048 - ROM_LOAD("40027.ic801", 0, 0x400, CRC(25260958) SHA1(210e7e25228c79d2920679f217d68e4f14055825)) -ROM_END - -ROM_START(pcw10) - ROM_REGION(0x10000,"maincpu",0) - ROM_FILL(0x0000,0x10000,0x00) \ - ROM_REGION(0x2000,"printer_mcu",0) // i8041 9-pin dot matrix - ROM_LOAD("40026.ic701", 0, 0x400, CRC(ee8890ae) SHA1(91679cc5e07464ac55ef9a10f7095b2438223332)) - ROM_REGION(0x400,"keyboard_mcu",0) // i8048 - ROM_LOAD("40027.ic801", 0, 0x400, CRC(25260958) SHA1(210e7e25228c79d2920679f217d68e4f14055825)) -ROM_END - - -/* these are all variants on the pcw design */ -/* major difference is memory configuration and drive type */ -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */ -COMP( 1985, pcw8256, 0, 0, pcw8256, pcw, pcw_state, pcw, "Amstrad plc", "PCW8256", MACHINE_NOT_WORKING) -COMP( 1985, pcw8512, pcw8256, 0, pcw8512, pcw, pcw_state, pcw, "Amstrad plc", "PCW8512", MACHINE_NOT_WORKING) -COMP( 1987, pcw9256, pcw8256, 0, pcw8256, pcw, pcw_state, pcw, "Amstrad plc", "PCW9256", MACHINE_NOT_WORKING) -COMP( 1987, pcw9512, pcw8256, 0, pcw9512, pcw, pcw_state, pcw, "Amstrad plc", "PCW9512 (+)", MACHINE_NOT_WORKING) -COMP( 1993, pcw10, pcw8256, 0, pcw8512, pcw, pcw_state, pcw, "Amstrad plc", "PCW10", MACHINE_NOT_WORKING) |