From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
To: Will Newton <will@misconception.org.uk>
Cc: parisc-linux@parisc-linux.org, debian-hppa@debian.org
Subject: [parisc-linux] Re: Fwd: Re: Any hppa gurus?
Date: Sat, 30 Mar 2002 10:47:24 -0500 [thread overview]
Message-ID: <20020330104724.A16468@systemhalted> (raw)
In-Reply-To: <E16qkq2-0008AG-00.2002-03-29-01-05-55@mail7.svr.pol.co.uk>; from will@misconception.org.uk on Fri, Mar 29, 2002 at 01:07:07AM +0000
>
> So, are the first four floats/doubles in an arg list always passed in
> registers?
>
> How about func(int, float, int, double, int, float)?
>
>
A float fits into a single fr register.
A double fits into two fr registers (fr7 (uses fr6),fr5 (uses fr4))
int gr26 - fr7 ===
=== gr25 - fr6 ===
int gr24 - fr5 float
=== gr23 - fr4 ===
I wonder what happens if the call was int,int,float... and if that
would make a difference :)
/me goes to check
Hrmm...
int gr26 - fr7 ===
int gr25 - fr6 float
=== gr24 - fr5 ===
=== gr23 - fr4 ===
Not sure why that doesn't happen in the first example. Though
I am no guru at this :)
Any help from more knowledgable parties would be helpful.
c.
next parent reply other threads:[~2002-03-30 15:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E16qeEE-0000jh-00.2002-03-28-18-02-27@mail6.svr.pol.co.uk>
[not found] ` <20020328143202.I12094@systemhalted>
[not found] ` <E16qkq2-0008AG-00.2002-03-29-01-05-55@mail7.svr.pol.co.uk>
2002-03-30 15:47 ` Carlos O'Donell Jr. [this message]
2002-03-30 17:36 ` [parisc-linux] Re: Fwd: Re: Any hppa gurus? John David Anglin
2002-03-30 20:11 ` Carlos O'Donell Jr.
2002-03-30 21:32 ` John David Anglin
2002-03-30 21:56 ` John David Anglin
2002-04-02 13:47 ` Carlos O'Donell Jr.
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