公开(公告)号：JPH10240524A

公开(公告)日：1998-09-11

申请号：JP2892698

申请日：1998-02-10

Applicant: IBM

Inventor： HILGENDORF ROLF ,  SCHWERMER HARTMUT ,  SOELL WERNER

IPC: G06F9/318

Abstract: PROBLEM TO BE SOLVED: To obtain the possibility of parallel decoding of instructions and to make easy alterations of a conversion path by using reconstitution information corresponding to the instruction of the code and reconstituting instruction elements of the instruction of the code according to the reconstitution information. SOLUTION: The reconstitution information needed to convert an external instruction 100 into one group of internal instructions 101 is included in a conversion table 106. Respective entries 105 of the table 106 correspond to one instruction 100 of an external code to determine how instruction elements of this specific instruction should be reconstituted to form corresponding internal instructions 101. Then the elements of the external instruction like immediate data 110, logical register identifiers 111 and 112, status information, and others 113 and 114 are reconstituted by one group of multiplexers 120 to 124. The outputs of the respective multiplexers are written directly in corresponding fields.

公开(公告)号：JPS63173130A

公开(公告)日：1988-07-16

申请号：JP29791687

申请日：1987-11-27

Applicant: IBM

Inventor： KAUFHOLZ GERD ,  MAERGNER JUERGEN ,  SCHWERMER HARTMUT

IPC: G06F9/455 ,  G06F9/22 ,  G06F9/30 ,  G06F9/318

公开(公告)号：DE3685117D1

公开(公告)日：1992-06-04

申请号：DE3685117

申请日：1986-12-30

Applicant: IBM

Inventor： KAUFHOLZ GERD ,  MAERGNER JUERGEN ,  SCHWERMER HARTMUT

IPC: G06F9/455 ,  G06F9/22 ,  G06F9/30 ,  G06F9/318

Abstract: The expansion system allows hindling of a third class of functions in addition to the first class of non-redundant basic functions and the second class of functions wholly obtained via the basic functions. The third class of functions are only obtained in part via the non-redundant basic functions. A switch mechanism switches the processor between an external operating mode for handling the commands and microprogram instructions for the first class of functions and an internal operating mode for obtaining the second and third class of cuntions. In the latter mode, an auxiliary operator can supply additional functions for obtaining a new overall architecture.