Changeset 6297ad3 in rtems-docs

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:

• cpu-supplement/powerpc.rst (modified) (1 diff)

cpu-supplement/powerpc.rst

@@ -270 +270 @@
 The PowerPC architecture includes a number of special registers which are
 critical to the programming model:
+
+*Special-Purpose Register General 0 (SPRG0)*
+    On SMP configurations, this register contains the address of the per-CPU
+    control of the processor.
+
+*Special-Purpose Register General 1 (SPRG1)*
+    This register contains the interrupt stack pointer for the outer-most
+    interrupt service routine.
+
+*Special-Purpose Register General 2 (SPRG2)*
+    This register contains the address of interrupt stack area begin.
 
 *Machine State Register*