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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-05-05 16:26:12 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-05-05 16:26:12 +0000 |
| commit | 356ed71f209eb1d44d8a6c974a97bbada0385bcb (patch) | |
| tree | 5fe80c58dd5bab8c2cfb9dee1394c6051d85bbfa | |
| parent | e1ffb3c8bc58abd1e5dfce27900c0bdb403d1a29 (diff) | |
| download | gcc-356ed71f209eb1d44d8a6c974a97bbada0385bcb.tar.gz | |
* extend.texi (Extended Asm): Document inability to give asm
statements access to condition codes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33709 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/extend.texi | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c1ab0418e0e..9c50cb320c5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-05-05 Geoff Berry <geoffb@bops.com> + + * extend.texi (Extended Asm): Document inability to give asm + statements access to condition codes. + 2000-05-05 Marek Michalkiewicz <marekm@linux.org.pl> * varasm.c (asm_emit_uninitialised): Use 0, not NULL diff --git a/gcc/extend.texi b/gcc/extend.texi index c3e26484a80..65b0ec916ac 100644 --- a/gcc/extend.texi +++ b/gcc/extend.texi @@ -2678,6 +2678,10 @@ instructions would alter the condition code before there was time to test it. This problem doesn't arise for ordinary ``test'' and ``compare'' instructions because they don't have any output operands. +For reasons similar to those described above, it is not possible to give +an assembler instruction access to the condition code left by previous +instructions. + If you are writing a header file that should be includable in ANSI C programs, write @code{__asm__} instead of @code{asm}. @xref{Alternate Keywords}. |