bsnes/snes/cpu/timing/joypad.cpp

29 lines
616 B
C++
Executable File

#ifdef CPU_CPP
void CPU::run_auto_joypad_poll() {
uint16 joy1 = 0, joy2 = 0, joy3 = 0, joy4 = 0;
for(unsigned i = 0; i < 16; i++) {
uint8 port0 = input.port_read(0);
uint8 port1 = input.port_read(1);
joy1 |= (port0 & 1) ? (0x8000 >> i) : 0;
joy2 |= (port1 & 1) ? (0x8000 >> i) : 0;
joy3 |= (port0 & 2) ? (0x8000 >> i) : 0;
joy4 |= (port1 & 2) ? (0x8000 >> i) : 0;
}
status.joy1l = joy1;
status.joy1h = joy1 >> 8;
status.joy2l = joy2;
status.joy2h = joy2 >> 8;
status.joy3l = joy3;
status.joy3h = joy3 >> 8;
status.joy4l = joy4;
status.joy4h = joy4 >> 8;
}
#endif