Characterization of Program Behavior under Faulty Instruction Encoding

Table 6

Instruction length according to binary encodings of MOD, R/M, and BASE fields.

#Format	MOD	R/M	BASE(SIB)	Instruction length (bits)
1	00	100	101	48
2			000∼100,110,111	16
3		101	—	40
4		000∼011,110,111	—	8
5	01	100	—	24
6		000∼011,101∼111	—	16
7	10	100	—	48
8		000∼011,101∼111	—	40
9	11	—	—	8