Control Data Cyber 170 State Hardware Reference Manual page 77

CP
lnteger Arithmetic Instructions
CP Instruction Descriptions
The
0
0
0
a
0
0
rn
rn
0
a
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CP general instructions are divided into
16
subgroups as follows:
Integer Arithmetic
Branch
Block Copy
Shift
Logical
Floating Point
Jump
Exchange/Jump
~ompare/~ove
Set
Normalize
Pass
Illegal Instruction
Mask
Pop Count
Read Free Running Counter
CP lnteger Arithmetic lnstructions
The integer arithmetic instructions (table 4-1) perform integer arithmetic on
signed two's complement words or half words in Xk or XkR.
The sign bit is bit
0 for full-word integers or bit 32 for half-word integers.
Table 4-1.
CP Integer Arithmetic Instructions
-
. .
Opcode Format Instruction
Mnemonic
27 i jk Pack (~k) and (Bj) to Xi PXi Bj Xk
26 i jk Unpack (Xk)
to Xi and Bj
UXi Bj Xk
36 U k Integer sum of (Xj) and (Xlc) to Xi IXi Xj+Xk
37
1
jk Integer difference of (Xj) and (Xk) to Xi IXi Xj-Xk