Changeset 873ba80 in rtems-docs for cpu-supplement/powerpc.rst


Ignore:
Timestamp:
Aug 24, 2017, 1:54:41 PM (3 years ago)
Author:
Sebastian Huber <sebastian.huber@…>
Branches:
5, am, master
Children:
3fdea2d
Parents:
6eef7a4
git-author:
Sebastian Huber <sebastian.huber@…> (08/24/17 13:54:41)
git-committer:
Sebastian Huber <sebastian.huber@…> (08/24/17 13:55:07)
Message:

cpu-supplement: Fix PowerPC TOC limitation

Update #3082.

File:
1 edited

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  • cpu-supplement/powerpc.rst

    r6eef7a4 r873ba80  
    132132  use the TOC to get addresses and constants.
    133133
    134 * The TOC must be within the first 4GiB of the address space.  This simplifies
    135   the interrupt prologue.
     134* The TOC must be within the first 2GiB of the address space.  This simplifies
     135  the interrupt prologue, since the `r2` can be set to `.TOC.` via the usual
     136  `lis` followed by `ori` combination.  The `lis` is subject to sign-extension.
    136137
    137138* The `PPC_REG_LOAD`, `PPC_REG_STORE`, `PPC_REG_STORE_UPDATE`, and
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