285     int dx1, dy1, dz1;  in ps2_mouse_send_packet()  local
289     dz1 = s->mouse_dz;  in ps2_mouse_send_packet()
308         if (dz1 > 127)  in ps2_mouse_send_packet()
309             dz1 = 127;  in ps2_mouse_send_packet()
310         else if (dz1 < -127)  in ps2_mouse_send_packet()
311                 dz1 = -127;  in ps2_mouse_send_packet()
312         ps2_queue(&s->common, dz1 & 0xff);  in ps2_mouse_send_packet()
315         if (dz1 > 7)  in ps2_mouse_send_packet()
316             dz1 = 7;  in ps2_mouse_send_packet()
317         else if (dz1 < -7)  in ps2_mouse_send_packet()
318             dz1 = -7;  in ps2_mouse_send_packet()
319         b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);  in ps2_mouse_send_packet()
327     s->mouse_dz -= dz1;  in ps2_mouse_send_packet()