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| author | Geoff Berry <geoffb@bops.com> | 2000-05-05 16:26:12 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2000-05-05 10:26:12 -0600 |
| commit | eda3fbbe7ac4a70dc5ec0bcde632dd584881804d (patch) | |
| tree | 5fe80c58dd5bab8c2cfb9dee1394c6051d85bbfa /gcc | |
| parent | 4edee0e6a1ac25b68b76b458e597cd044cc3933a (diff) | |
| download | gcc-eda3fbbe7ac4a70dc5ec0bcde632dd584881804d.zip gcc-eda3fbbe7ac4a70dc5ec0bcde632dd584881804d.tar.gz gcc-eda3fbbe7ac4a70dc5ec0bcde632dd584881804d.tar.bz2 | |
extend.texi (Extended Asm): Document inability to give asm statements access to condition codes.
* extend.texi (Extended Asm): Document inability to give asm
statements access to condition codes.
From-SVN: r33709
Diffstat (limited to 'gcc')
| -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 c1ab041..9c50cb3 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 c3e2648..65b0ec9 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}. |