Data processing apparatus providing autoincrementing of memory pointer registers

A Central Processing Unit (CPU) provides programmable autoincrementing of memory pointer registers. The CPU includes an op-code extension register (OER) to store a code specifying the autoincrementing status of each memory pointer register. Whether or not a particular memory pointer register contain...

Full description

Saved in:
Bibliographic Details
Main Authors COPP, DAVID H, BLAHUT, DONALD E, STANZIONE, DANIEL C
Format Patent
LanguageEnglish
Published 16.12.1980
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A Central Processing Unit (CPU) provides programmable autoincrementing of memory pointer registers. The CPU includes an op-code extension register (OER) to store a code specifying the autoincrementing status of each memory pointer register. Whether or not a particular memory pointer register containing the address of an operand used in the current operation is automatically incremented at the end of an instruction cycle to contain the address of an operand required for the next operation depends on the binary state of a particular bit position in the OER corresponding to the particular memory pointer register. The contents of the op-code extension register can be changed by means of an instruction for transferring a new code to OER.
Bibliography:Application Number: US19780974361