diff options
Diffstat (limited to 'src/mame/drivers/pcw.c')
-rw-r--r-- | src/mame/drivers/pcw.c | 1403 |
1 files changed, 1403 insertions, 0 deletions
diff --git a/src/mame/drivers/pcw.c b/src/mame/drivers/pcw.c new file mode 100644 index 00000000000..9af7f2fccd6 --- /dev/null +++ b/src/mame/drivers/pcw.c @@ -0,0 +1,1403 @@ +// 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) |