import x16_kernal
import mouse

void read_mouse() {
    byte btn
    mouse_scan()
    btn = mouse_get(0)
    mouse_x = kernal_registers[0]
    mouse_y = kernal_registers[1]
    mouse_lbm = btn & 1 != 0
    mouse_rbm = btn & 2 != 0
#if USE_MOUSE_MBM
    mouse_mbm = btn & 4 != 0
#endif
}