Mips Technologies R4000 - Page 592

Appendix A
A-124 MIPS R4000 Microprocessor User's Manual
Format:
ORI rt, rs, immediate
Description:
The 16-bit immediate is zero-extended and combined with the contents of
general register rs in a bit-wise logical OR operation. The result is placed
into general register rt.
Operation:
Exceptions:
None
31 2526 2021 1516 0
ORI rs rt
immediate
655 16
0 0 1 1 0 1
ORI
Or Immediate
ORI
32 T: GPR[rt] ← GPR[rs]
31...16
|| (immediate or GPR[rs]
15...0
)
64 T: GPR[rt] ← GPR[rs]
63...16
|| (immediate or GPR[rs]
15...0
)