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D–2 Alpha Architecture Handbook
For OpenVMS Alpha and DIGITAL UNIX, the processor types are stored in the Per-CPU Slot
Table (SLOT[176]), pointed to by HWRPB[160].
D.2 PALcode Variation Assignments
The PALcode variation assignments are as follows:
5 = EV5 (21164) 0 = Reserved (Pass 1)
1 = Pass 2, 2.2 (rev BA, CA)
2 = Pass 2.3 (rev DA, EA)
3 = Pass 3
4 = Pass 3.2
5 = Pass 4
6 = EV45 (21064A) 0 = Reserved
1 = Pass 1
2 = Pass 1.1
3 = Pass 2
7 = EV56 (21164A) 0 = Reserved
1 = Pass 1
2 = Pass 2
8 = EV6 (21264) 0 = Reserved
1 = Pass 1
2 = Pass 2, 2.1
3 = Pass 2.2
4 = Pass 2.3
5 = Pass 3
9 = PCA56 (21164PC) 0 = Reserved
1 = Pass 1
Table D–2: PALcode Variation Assignments
Token PALcode Type Summary Table
0 Console N/A
1 OpenVMS Alpha Console Interface (III), Chapter 3, in the
Alpha Architecture Reference Manual.
Table D–1: Processor Type Assignments (Continued)
Major Type Minor Type