IBM System/360 Field Engineering Manual page 15

Edit and Mark EDMK DF SS Dl(L, Bl), D2(B2) Same as Edit Prot Result
(Adr of 1st significant result digit Adr 0 field= O
recorded in GPR 1) Data 1 field< O
2 field
>
O
Exclusive OR
x
57 RX Rl,D2(X2,B2) Exclusive-OR opr 2 and opr 1 and the Adr 0 Result= O
modulo-two sum placed in opr 1 Speci 1 Result
1'
O
Exclusive OR XC
D7
SS Dl(L, Bl), D2 (B2) Exclusive-OR opr 2 and opr 1 and the Prot 0 Result - 0
modulo-two sum placed in opr 1
Adr
1 Result
-F
O
(Left to ·right byte by byte)
(Max opr length is 256 bytes)
ExcluSive OR XI 97 SI Dl(Bl),I2 The 1 byte from the instruction stream Prot 0 Result= 0
(8-15) is exclusive-ORed with opr 1 and the Adr 1 Result
1'
O
modulo-two sum pla.:;ed in opr 1
Exclusive OR XR 17 RR Rl,R2 Exclusive-OR logical opr 2 and opr 1 and the
None 0 Result= O
modulo-two sum placed in opr
1.
1 Result
i:
0
Execute
EX
44 RX
Rl,D2(X2,B2)
Execute the instruction at the branch-to
Execute Set by
adr (modified by ORing opr 1 8-15 Adr subject
with Rl 24-31) Spec instruction
(If Rl = O, execute - no ORing)
Halt
1/0
HIO 9E SI Dl(Bl) Current I/O operation of specified Privileged 0 Chan or
sub-channel or channel is terminated. Oper sub-chan
(CSW 32-47 are stored) working
(Privileged instruction) 1 CSW stored
2 NOP
Halve (Long) HDR 24 RR Rl,R2 Fraction shifted right 1, opr 2 placed in Spec Unchanged
opr 1 (FPRs)
(char and sign unchanged)
Halve (Short) HER
34 RR
Rl,R2 Fraction shifted right 1, opr 2 placed in Spec Unchanged
opr 1 (FPRs)
(Low-order half of opr 1 unchanged, char
and sign unchangedl
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