Load upper immediate – NEC Network Controller uPD98502 User Manual
Page 513
APPENDIX A MIPS III INSTRUCTION SET DETAILS
Preliminary User’s Manual S15543EJ1V0UM
513
LUI
Load Upper Immediate
LUI
0
0 0 0 0 0
LUI
0 0 1 1 1 1
rt
immediate
31
26 25
21 20
16 15
0
6
5
5
16
Format:
LUI rt, immediate
Description:
The 16-bit
immediate is shifted left 16 bits and concatenated to 16 bits of zeros. The result is placed into general
register
rt. In 64-bit mode, the loaded word is sign-extended.
Operation:
32
T:
GPR [rt]
← immediate || 0
16
64
T:
GPR [rt]
← (immediate
15
)
32
|| immediate || 0
16
Exceptions:
None