INT_M1_M2
EXT_NONE | INT_M1_M2 | NO_ID | WAIT);
EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT);
write_ID(adder, SRC1_OCR_A, EXT_NONE | INT_M1_M2 | NO_ID | WAIT);
write_ID(adder, SRC2_OCR_B, EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT);