MicroBlaze Processor Reference Guide www.xilinx.com 135
UG081 (v6.0) June 1, 2006 1-800-255-7778
Instructions
R
sext16
Sign Extend Halfword
Description
This instruction sign-extends a halfword (16 bits) into a word (32 bits). Bit 16 in rA will be
copied into bits 0-15 of rD. Bits 16-31 in rA will be copied into bits 16-31 of rD.
Pseudocode
(rD)[0:15] (rA)[16]
(rD)[16:31]
(rA)[16:31]
Registers Altered
rD
Latency
1 cycle
sext16 rD, rA
1 0 0 1 0 0 rD rA 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1
0 6 11 16 31