From: meissner@cygnus.com
To: joel@OARcorp.com, rth@cygnus.com
Cc: egcs@cygnus.com
Subject: Re: exception handling poll
Date: Sat, 18 Oct 1997 07:37:00 -0000 [thread overview]
Message-ID: <199710181437.KAA25290@tweedledumb.cygnus.com> (raw)
| On Fri, Oct 17, 1997 at 12:43:32PM -0500, Joel Sherrill wrote:
| > > | The PPC problem is probably more difficult to address. The code generate
| > > | for vfprintf saves an FP regsiter in the prolog because of the path for FP
| > > | numbers. So even if you do not print an FP number, you still end up
| > > | touching the FPU.
|
| Seems to me the way to handle this is to call out to another function
| to do the actual fp i/o. Since we're talking about vfprintf, an interface
| as simple as
|
| void do_fp_printf(FILE *f, int width, int prec, char fmt, va_list *arg)
|
| should cover all the cases. It is also now easy to ifdef it out, which
| could be nice for the embedded folks.
Also, if you are using a newlib based printf, note there are the functions:
iprintf
fiprintf
siprintf
viprintf
vfiprintf
vsiprintf
that do not include any floating point support (which also cuts down on the
size).
next reply other threads:[~1997-10-18 7:37 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-10-18 7:37 meissner [this message]
1997-10-18 8:53 ` Joel Sherrill
-- strict thread matches above, loose matches on Subject: below --
1997-10-20 0:24 Christian Iseli
1997-10-19 8:27 meissner
1997-10-17 11:46 meissner
1997-10-17 14:36 ` Joel Sherrill
1997-10-17 20:51 ` Richard Henderson
1997-10-18 8:53 ` Joel Sherrill
1997-10-17 20:51 ` David Edelsohn
1997-10-18 8:53 ` Joel Sherrill
1997-10-16 20:28 meissner
1997-10-17 2:51 ` Robin Kirkham
1997-10-17 5:58 ` Joel Sherrill
1997-10-17 15:05 ` Joe Buck
1997-10-26 19:34 ` Robin Kirkham
1997-10-16 15:19 meissner
1997-10-16 15:19 meissner
1997-10-16 15:19 ` Richard Henderson
1997-10-17 7:08 ` Horst von Brand
1997-10-17 12:50 ` Joe Buck
1997-10-17 13:22 ` Richard Henderson
1997-10-20 6:46 ` Horst von Brand
1997-10-16 8:31 Richard Henderson
1997-10-16 15:19 ` Joern Rennecke
1997-10-16 15:19 ` Richard Henderson
1997-10-16 15:19 ` Joe Buck
1997-10-16 23:09 ` Oleg Krivosheev
1997-10-17 14:36 ` Stephen Williams
1997-10-17 20:51 ` Oleg Krivosheev
1997-10-17 6:41 ` John Carr
1997-10-17 15:05 ` Jeffrey A Law
1997-10-17 15:05 ` Joe Buck
1997-10-17 14:36 ` Richard Henderson
1997-10-17 19:44 ` John Carr
1997-10-19 19:40 ` Per Bothner
1997-10-20 5:45 ` John Carr
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