Control Data 3100 Reference Manual page 204

NORMALIZE - To adjust the exponent and mantissa of a floating point result so that
the mantissa lies in the prescribed standard (normal) range.
NORMAL JUMP-An instruction that jumps from one sequence of instructions to a
second, and makes no preparation for returning to the first sequence. Also' referred
to as an Unconditional Jump.
NUMERIC CODING-A system of abbreviation in which all information is reduced to
numerical quantities. Also called Absolute or Machine Language coding.
OBJECT PROGRAM-The machine language version of the source program.
ONE'S COMPLEMENT- With reference to a binary number, that number which
results from subtracting each bit of a given number from "I". The one's complement
of a number is formed by complementing each bit of it individually, that is, changing
a "I" to "0" and a "0" to a "1". A negative number is expressed by the one's comple-
ment of the corresponding positive number.
ON-LINE OPERATION-A type of system application in which the input or output
data to or from the system is fed directly from or to the external equipment.
OPERAND- Usually refers to the quantity specified by the execution address.
OPERATION CODE (Function Code)-A 6-bit quantity in an instruction specifying
the operation to be performed.
OPERATIONAL REGISTERS- Registers which are displayed on the operator's sec-
tion of the console.
OR FUNCTION -A logical function in Boolean algebra that is satisfied (has the value
"I")
when any of its terms are
"I".
It is not satisfied when all terms are "0". Often
called the inclusive OR function.
OVERFLOW - The capacity of a register is exceeded.
PARAMETER - An operand used by a program or subroutine.
PARITY CHECK - A summation check in which the binary digits in a character are
added and the sum checked against a previously computed parity digit; i.e., a check
which tests whether the number of ones is odd or even.
P REGISTER- The Program Address Counter (P register) is a one's complement
additive register (modulus 2
15
_1) which defines the storage addresses containing the
individual program steps.
PROGRAM - A precise sequence of instructions that accomplishes the solution of a
problem. Also called a routine.
PSEUDO CODE - A statement requesting a specific operation by the assembler or compiler.
Q
REGISTER-Auxiliary 24-bit arithmetic register which assists the A register in the
more complicated arithmetic operations.
RADIX - The number of different digits that can occur in a digit position for a specific
number system. It may be referred to as the base of a number system.
RANDOM ACCESS- Access to storage under conditions in which the next position from
which information is to be obtained can be independent of the previous one.
READ - To remove a quantity from a storage location.
REGISTER-The internal logic used for temporary storage or for holding a quantity
during computation.
REJECT - A signal generated under certain circumstances by either the external equip-
ment or the processor during the execution of Input/Output instructions.
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