Analog Devices adsp-2100 Manual page 441

A Instruction Coding
SF
SPP
T
A – 12
Shifter Function codes
LSHIFT
0 0 0 0
LSHIFT
0 0 0 1
LSHIFT
0 0 1 0
LSHIFT
0 0 1 1
ASHIFT
0 1 0 0
ASHIFT
0 1 0 1
ASHIFT
0 1 1 0
ASHIFT
0 1 1 1
NORM
1 0 0 0
NORM
1 0 0 1
NORM
1 0 1 0
NORM
1 0 1 1
EXP
1 1 0 0
EXP
1 1 0 1
EXP
1 1 1 0
Derive Block Exponent
1 1 1 1
Status Stack Push/Pop codes
No change
0 0
No change
0 1
Push
1 0
Pop
1 1
Return Type codes
Return from Subroutine
0
Return from Interrupt
1
(HI)
(HI, OR)
(LO)
(LO, OR)
(HI)
(HI, OR)
(LO)
(LO, OR)
(HI)
(HI, OR)
(LO)
(LO, OR)
(HI)
(HIX)
(LO)