IBM System/360 Field Engineering Manual page 22

Shift Left Double
SLDA
SF
RS Rl, D2(B2) Opr 1 (even and odd GPRs) is shifted left Spec 0 Result
=
0
the number of times equal to opr 2 Exp Oflo
1
Result < 0
(low-order
6
bits).
2 Result
>
O
3 Overflow
Shift Left Double SLDL SD
RS
Rl,D2(B2) Opr 1 (even and odd GPRs) is shifted left Spec Unchanged
Logical
the number of times equal to opr 2
(low-order 6 bits).
Shift Left Single
SLA SB RS Rl,D2(B2)
Opr 1 is shifted left the number of times Exp Oflo
0 Result= 0
equal to opr 2 (low-order
6
bits). 1 Result
<
0
2 Result > 0
3
Overflow
Shift Left Single SLL
S9 RS
Rl, D2(B2) Opr 1 is shifted left the number of times None Unchanged
Logical equal to opr 2 (low-order
fi
hihl)
--"~-
tlh1tt Right Double
SRDA
SE RS Rl, D2(B2) Opr 1 (even and odd GPRs) is shifted right Spec 0 Result - 0
the number of times equal to opr 2 1 Result
<
O
(low-order 6 bits). 2 Result > 0
Shift Right Double
SRDL SC RS Rl, D2(B2)
Opr 1 (even and odd GPRs) is shifted right
Spec Unchanged
Logical the number of times equal to opr 2
(low-order 6 bits).
(Vacated bits are replaced with zeros)
(Hi-order bit participates in the shift)
Shift Right Single SRA BA RS Rl,D2(B2) Opr 1 is shifted right the number of times None 0 Result= O
equal to opr 2 (low-order 6 bits). 1 Result
<
0
(Shifting
(+)
numbers: vacated bits are 2 Result > 0
replaced with zeros.)
(Shifting (-)numbers: vacated bits are
replaced with ones.)
Shift Right Single
SRL 88 RS
Rl,D2(B~)
Opr 1 is shifted right the number of times
None
Unchanged
Logical
equal to opr 2 (low-order
6
bits).
(Vacated bits are replaced with zeros)
(Hi-order bit participates in the shift)