Changeset 6297ad3 in rtems-docs


Ignore:
Timestamp:
Nov 10, 2016, 9:16:03 AM (3 years ago)
Author:
Sebastian Huber <sebastian.huber@…>
Branches:
master
Children:
bcdca5d
Parents:
9330bfb
git-author:
Sebastian Huber <sebastian.huber@…> (11/10/16 09:16:03)
git-committer:
Sebastian Huber <sebastian.huber@…> (11/10/16 09:16:30)
Message:

cpu-supplement: Document PowerPC SPRG0-2 usage

File:
1 edited

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  • cpu-supplement/powerpc.rst

    r9330bfb r6297ad3  
    270270The PowerPC architecture includes a number of special registers which are
    271271critical to the programming model:
     272
     273*Special-Purpose Register General 0 (SPRG0)*
     274    On SMP configurations, this register contains the address of the per-CPU
     275    control of the processor.
     276
     277*Special-Purpose Register General 1 (SPRG1)*
     278    This register contains the interrupt stack pointer for the outer-most
     279    interrupt service routine.
     280
     281*Special-Purpose Register General 2 (SPRG2)*
     282    This register contains the address of interrupt stack area begin.
    272283
    273284*Machine State Register*
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