source/src/vm/pc6001/joystick.cpp

   1 /*
   2         NEC PC-6001 Emulator 'yaPC-6001'
   3         NEC PC-6001mkII Emulator 'yaPC-6201'
   4         NEC PC-6001mkIISR Emulator 'yaPC-6401'
   5         NEC PC-6601 Emulator 'yaPC-6601'
   6         NEC PC-6601SR Emulator 'yaPC-6801'
   7
   8         Author : tanam
   9         Date   : 2013.07.15-
  10
  11         [ joystick ]
  12 */
  13
  14 #include "joystick.h"
  15 #if defined(_PC6001MK2SR) || defined(_PC6601SR)
  16 #include "../ym2203.h"
  17 #else
  18 #include "../ay_3_891x.h"
  19 #endif
  20
  21 namespace PC6001 {
  22
  23 void JOYSTICK::initialize()
  24 {
  25         joy_stat = emu->get_joy_buffer();
  26
  27         // register event to update the key status
  28         register_frame_event(this);
  29 }
  30
  31 void JOYSTICK::event_frame()
  32 {
  33 #if defined(_PC6001MK2SR) || defined(_PC6601SR)
  34         d_psg->write_signal(SIG_YM2203_PORT_A, ~(joy_stat[0] & 0x3f), 0xff);
  35         d_psg->write_signal(SIG_YM2203_PORT_B, ~(joy_stat[1] & 0x1f), 0xff);
  36 #else
  37         d_psg->write_signal(SIG_AY_3_891X_PORT_A, ~(joy_stat[0] & 0x3f), 0xff);
  38         d_psg->write_signal(SIG_AY_3_891X_PORT_B, ~(joy_stat[1] & 0x1f), 0xff);
  39 #endif
  40 }
  41
  42 }