Memory utilization apparatus and method

Claim 1

AN INFORMATION PROCESSING SYSTEM COMPRISING MEMORY STORAGE MEANS INCLUDING A PLURALITY OF ADDRESSABLE STORAGE LOCATIONS FOR STORING A CORRESPONDING PLURALITY OF WORDS, A FIRST REGISTER FOR TEMPORARILY STORING THE MEMORY ADDRESS OF A COMMAND WORD, ADDRESSING MEANS RESPONSIVE TO THE MEMORY ADDRESS IN SAID FIRST REGISTER FOR TRANSFERRING A COMMAND WORD FROM THE ADDRESSED MEMORY STORAGE LOCATION TO A SECOND REGISTER, TESTING MEANS FOR TESTING THE COMMAND WORD IN SAID SECOND REGISTER FOR DETECTING A PREDETERMINED CONFIGURATION, MEANS FOR GENERATING A SIGNAL IN RESPONSE TO THE DETECTION OF THE PREDETERMINED CONFIGURATION, THIRD AND FOURTH REGISTERS, FIRST MEANS RESPONSIVE TO SAID SIGNAL FOR TRANSFERRING THE CONTENTS OF SAID THIRD REGISTER TO SAID FOURTH REGISTER, SECOND MEANS RESPONSIVE TO SAID SIGNAL FOR MODIFYING THE MEMORY ADDRESS TEMPORARILY STORED IN SAID FIRST REGISTER, THIRD MEANS RESPONSIVE TO SAID SIGNAL FOR TRANSFERRING THE CONTENTS OF A MEMORY STORAGE LOCATION SPECIFIED BY AN OPERAND ADDRESS PORTION OF THE COMMAND WORD TEMPORARILY STORED IN SAID SECOND REGISTER TO SAID THIRD REGISTER, FOURTH MEANS FOR REACTIVATING SAID ADDRESSING MEANS WHEREBY A SECOND COMMAND WORD IS TRANSFERRED FROM A MEMORY STORAGE LOCATION SPECIFIED BY THE MODIFIED MEMORY ADDRESS IN SAID FIRST REGISTER TO SAID SECOND REGISTER, MEANS FOR DECODING AND EXECUTING THE SECOND COMMAND WORD TEMPORARILY STORED IN SAID SECOND REGISTER, AND FIFTH MEANS RESPONSIVE TO SAID SIGNAL FOR MODIFYING THE MEMORY ADDRESS TEMPORARILY STORED IN SAID FIRST REGISTER A SECOND TIME.