while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
;\r
while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r
while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
;\r
while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r