Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 17:00:53 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

This took a whole ten minutes to implement. What an undue burden. (nw)

Browse Source
This commit is contained in:
mooglyguy 2019-01-09 18:48:55 +01:00
parent 6fc3fa1b78
commit bc8f4e2bee
2 changed files with 39 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/mame/machine/midwayic.cpp
View File

@ -26,6 +26,33 @@
#define FIFO_SIZE 512
/*************************************
*
* Serial number input kludge
*
*************************************/
static INPUT_PORTS_START( pic_serial_adjust )
PORT_START("SERIAL_DIGIT")
PORT_DIPNAME( 0x0f, 0x06, "Serial Low Digit")
PORT_DIPSETTING( 0x00, "0")
PORT_DIPSETTING( 0x01, "1")
PORT_DIPSETTING( 0x02, "2")
PORT_DIPSETTING( 0x03, "3")
PORT_DIPSETTING( 0x04, "4")
PORT_DIPSETTING( 0x05, "5")
PORT_DIPSETTING( 0x06, "6")
PORT_DIPSETTING( 0x07, "7")
PORT_DIPSETTING( 0x08, "8")
PORT_DIPSETTING( 0x09, "9")
PORT_BIT( 0xf0, 0x00, IPT_UNUSED )
INPUT_PORTS_END
ioport_constructor midway_serial_pic_device::device_input_ports() const
{
return INPUT_PORTS_NAME(pic_serial_adjust);
}
/*************************************
*
* Serial number encoding
@ -38,8 +65,9 @@ void midway_serial_pic_device::generate_serial_data(int upper)
uint32_t serial_number, temp;
uint8_t serial_digit[9];
serial_number = 123456;
serial_number = 123450;
serial_number += upper * 1000000;
serial_number += m_io_serial_digit->read() & 0x0f;
serial_digit[0] = (serial_number / 100000000) % 10;
serial_digit[1] = (serial_number / 10000000) % 10;
@ -119,6 +147,7 @@ midway_serial_pic_device::midway_serial_pic_device(const machine_config &mconfig
midway_serial_pic_device::midway_serial_pic_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, type, tag, owner, clock),
m_io_serial_digit(*this, "SERIAL_DIGIT"),
m_upper(0),
m_buff(0),
m_idx(0),
@ -136,9 +165,12 @@ midway_serial_pic_device::midway_serial_pic_device(const machine_config &mconfig
void midway_serial_pic_device::device_start()
{
serial_register_state();
generate_serial_data(m_upper);
}
void midway_serial_pic_device::device_reset()
{
generate_serial_data(m_upper);
}
WRITE_LINE_MEMBER(midway_serial_pic_device::reset_w)
{

5
src/mame/machine/midwayic.h
View File

@ -35,12 +35,17 @@ protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual ioport_constructor device_input_ports() const override;
void generate_serial_data(int upper);
void serial_register_state();
required_ioport m_io_serial_digit;
uint8_t m_data[16]; // reused by other devices
int m_upper;
private:
uint8_t m_buff;
uint8_t m_idx;