IBM System/360

Operation
Mnemonic Op Code Format Operands
Description
Interruptions Cond Code
Load Positive
LPR
10 RR Rl,R2 Opr 2 into opr 1
Exp Olio
0
Result= 0
(Negative numbers are complemented)
(Overflow.occurs when the max negative
2 Result > 0
number is complemented)
3 Overflow
Load Positive (Long)
LPDR
20 RR Rl,R2 Opr 2 into opr 1
Spec Result
(FPR) (FPR)
0 Fract = 0
(Both opr's made positive)
2 Result > 0
Load Positive (Short) LPER
30
RR R!,R2
f'C>Pr 2 into opr 1
Spec
Result
(Both opr's made positive)
0 Fract = 0
(Low-order half of opr 1 unchanged}
2 Result > 0
Load PSW
LPSW
82 SI D!(Bl) Opr 1 into PSW
Privileged Set by new
(Opr 1 low-order 3 bit adr must = 0)
Oper
PSW 34 and
(Instruction used to enter the problem or
35
wait state)
Load (Short)
LE
78 RX RI, D2(X2, B2) Opr 2 into opr 1
Adr Unchanged
(Sto) (FPR)
Spec
(Low-order half of opr 1 unchanged)
Load (Short) LER
38
RR R!,R2 Opr 2 into opr 1
Spec Unchanged
(FPR) (FPR)
(Low-order half of opr 1 unchanged)
Move
MVC
D2 SS Dl(L, Bl), D2(B2) Opr 2 to opr 1
Prat
Unchanged
(Left to right byte by byte) Adr
(Max number of bytes moved:
256)
(No restriction on overlapping fields)
Move
MVI
92 SI D!(Bl), 12 Move the 1 byte from the instruction
1
Prat
Unchanged
stream (8-15) to opr 2
Adr