IBM System/360

Operation Mnemonic
Op Code
Format
Operands
Description Interruptions Cond Code
Compare Logical CL 55 RX
Rl, D2(X2, B2) Compare opr 1 to opr 2 Adr 0 opr's =
(binary left to right) Spec 1 1st <
(Terminates if/when I- found) 2 1st >
Compare Logical CLC
D5 SS Dl(L, Bl), D2(B2)
Compare opr 1 to opr 2 Adr
0
opr's =
(binary left to right) 1 1st <
(Terminated if/when "I- fonnd)
2 1st >
(opr length max 256 bytes)
Compare Logical
CL! 95
SI Dl(Bl), 12
Compare opr 1 to opr 2
Adr 0
opr's -
(Imm) (Sto) 1 1st<
(binary left to right)
2
1st >
(Terminates if/when I- found)
Compare Logical
CLR 15
RR Rl,R2
Compare opr 1 to opr 2 None 0 opr's =
(binary left to right)
1
1st <
(Terminates if/when I- found)
2 1st >
Compare (Long)
CD 69
RX Rl, D2(X2, B2) Compare opr 1 algebraically to opr 2 (FPR)
Adr
0
opr's =
(Equalize and subtract.)
Spec 1 1st <
2
1st >
Compare (Long) CDR
29
RR Rl,R2
Compare opr 1 algebraically to opr 2 (FPR) Spec 0 opr's -
(Equalize and subtract )
1 1st <
2 1st >
Compare (Short) CE
79
RX Rl,D2(X2,B2)
Compare opr 1 algebraically to opr 2 Adr 0
opr
1
s -
(FPR)
(Sto) Spec 1 1st<
(Low-order FPR ignored and unchanged) 2 1st >
Compare (Short) CER 39 RR Rl,R2
Compare opr 1 algebraically to opr 2
Spec
0
opr's -
(FPR) (FPR) 1
1st <
(Low-order FPR ignored and unchanged)
2 1st >
Convert to Binary CVB 4F RX
Rl, D2(X2, B2) Convert opr 2 (packed decimal)
Adr Unchanged
(Double-word bounds) to binary and put in Spec
opr 1
Data
Exp Div