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mame/src/mess/drivers/pcw.c
etabeta78 2a3ed409a9 (MESS) included modern .dsk format among default supported 
formats. [Riley110]
2014-11-23 09:12:23 +01:00

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/******************************************************************************
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", GAME_NOT_WORKING)
COMP( 1985, pcw8512, pcw8256, 0, pcw8512, pcw, pcw_state, pcw, "Amstrad plc", "PCW8512", GAME_NOT_WORKING)
COMP( 1987, pcw9256, pcw8256, 0, pcw8256, pcw, pcw_state, pcw, "Amstrad plc", "PCW9256", GAME_NOT_WORKING)
COMP( 1987, pcw9512, pcw8256, 0, pcw9512, pcw, pcw_state, pcw, "Amstrad plc", "PCW9512 (+)", GAME_NOT_WORKING)
COMP( 1993, pcw10, pcw8256, 0, pcw8512, pcw, pcw_state, pcw, "Amstrad plc", "PCW10", GAME_NOT_WORKING)
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