343 #define ST1		1  macro
1398 	} else if (reply_buffer[ST1] & ST1_CRC) {  in print_errors()
1401 	} else if ((reply_buffer[ST1] & (ST1_MAM | ST1_ND)) ||  in print_errors()
1414 			reply_buffer[ST0], reply_buffer[ST1],  in print_errors()
1441 		if (reply_buffer[ST1] & ST1_EOC)  in interpret_errors()
1444 		if (reply_buffer[ST1] & ST1_WP) {  in interpret_errors()
1450 		} else if (reply_buffer[ST1] & ST1_ND) {  in interpret_errors()
1453 		} else if (reply_buffer[ST1] & ST1_OR) {  in interpret_errors()
1552 	    drive_state[current_drive].track != reply_buffer[ST1] &&  in seek_interrupt()
1563 	drive_state[current_drive].track = reply_buffer[ST1];  in seek_interrupt()
1696 		drive_state[current_drive].track = reply_buffer[ST1];  in recal_interrupt()
2335 	if (reply_buffer[ST1] & ST1_EOC)  in rw_interrupt()