Added fixme on register usage.

Rev: src/nettle/sparc/aes.asm:1.69

diff --git a/sparc/aes.asm b/sparc/aes.asm
index c0354e44bc5e9bc61aefdeb7369b93469a9dfb2e..7866df3b46390d686153d17fc4093b6936fe4cce 100644 (file)
--- a/sparc/aes.asm
+++ b/sparc/aes.asm
@@ -18,10 +18,13 @@
 ! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 ! MA 02111-1307, USA.
 
+! FIXME: Some of the %g registers are reserved for operating system etc
+! (see gcc/config/sparc.h). We should probably use only %g1-%g3 to be safe.
+       
        ! Used registers:       %l0,1,2,3,4,5,6,7
        !                       %i0,1,2,3,4 (%i6=%fp, %i7 = return)
        !                       %o0,1,2,3 (%o6=%sp)
-       !                       %g2,3,4,5,6
+       !                       %g2,3,4,5,6,7
        
        .file   "aes.asm"