From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Cc: parisc-linux@parisc-linux.org, will@misconception.org.uk
Subject: Re: [parisc-linux] Re: Fwd: Re: Any hppa gurus?
Date: Tue, 2 Apr 2002 08:47:31 -0500 [thread overview]
Message-ID: <20020402084731.C26273@systemhalted> (raw)
In-Reply-To: <200203302132.g2ULWNcp028559@hiauly1.hia.nrc.ca>; from dave@hiauly1.hia.nrc.ca on Sat, Mar 30, 2002 at 04:32:23PM -0500
>
> I some situations, the callee needs to save the argument registers on
> the stack. There are 4 words reserved for this.
>
Okay. I'll see if I can find those in the documentation.
> > int gr26 fr7 ----- === float
> > int gr25 fr6 float === -----
> > --- gr24 fr5 ----- --- -----
> > --- gr23 fr4 ----- --- -----
>
> You've got the order of the float registers reversed. They are allocated
> in order of increasing number starting with fr4.
>
Ah! Excellent. After looking at some more assembly output and reading...
I should have realized that it was the other way around :) Thanks.
Now some of my register allocation guessing is coming out correct :}
Serves me right for using complex examples all the time.
c.
prev parent reply other threads:[~2002-04-02 13:46 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 ` [parisc-linux] Re: Fwd: Re: Any hppa gurus? Carlos O'Donell Jr.
2002-03-30 17:36 ` 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. [this message]
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