NEC Network Controller uPD98502 User Manual
Page 535
APPENDIX A MIPS III INSTRUCTION SET DETAILS
Preliminary User’s Manual S15543EJ1V0UM
535
NOR
Nor
NOR
rs
SPECIAL
0 0 0 0 0 0
rt
rd
0
0 0 0 0 0
NOR
1 0 0 1 1 1
31
26 25
21 20
16 15
11 10
6 5
0
6
5
5
5
5
6
Format:
NOR rd, rs, rt
Description:
The contents of general register
rs are combined with the contents of general register rt in a bit-wise logical NOR
operation. The result is placed into general register
rd.
Operation:
32, 64 T:
GPR [rd]
← GPR [rs] nor GPR [rt]
Exceptions:
None