From: kingman@tardis.austin.ibm.com (John Kingman) Subject: Item #275: PowerPC processor binding, 64-bit properties Date: Fri, 16 Jun 1995 15:28:41 -0500 (CDT) P1275 Open Firmware Working Group Proposal -- Proposal #275 Ver Title: new PowerPC processor binding properties -- "64b-addr" and "64b-exec" Author: John A. Kingman Date: June 16, 1995 Ed/Tech: Technical Synopsis: add new properties ("64b-addr", "64b-exec") to CPU nodes Doc & Version: PowerPC processor Binding 1.02 Problem: Current binding does not identify processors with 64-bit capabilities and operating systems should not have to rely on specific model numbers to determine this. Proposal: Add the following words to the section: "CPU node properties" "64b-addr" This property, if present, indicates that the PowerPC processor (defined by this CPU node) has standard PowerPC 64-bit addressing capability in addition to standard PowerPC 32-bit addressing capability. The absence of this property indicates that the PowerPC processor (defined by this CPU node) has only the standard PowerPC 32-bit addressing capability. "64b-exec" This property, if present, indicates that the PowerPC processor (defined by this CPU node) has standard PowerPC 64-bit instruction execution capability in addition to the standard PowerPC 32-bit instruction execution capability. The absence of this property indicates that the PowerPC processor (defined by this CPU node) has only the standard PowerPC 32-bit instruction execution capability. John Kingman (kingman@austin.ibm.com) [ P1275 Item #275 -- Received: Fri Jun 16 13:31:30 PDT 1995 ]