X-Authentication-Warning:	delorie.com: mailnull set sender to djgpp-bounces using -f
From:	"Tom St Denis" <tomstdenis AT yahoo DOT com>
Newsgroups:	comp.os.msdos.djgpp,comp.lang.c
References:	<3C61E6BB DOT 7F9AD526 AT yahoo DOT com>
Subject:	Re: gcc 2.953 output - is this a bug?
Lines:	22
X-Priority:	3
X-MSMail-Priority:	Normal
X-Newsreader:	Microsoft Outlook Express 6.00.2600.0000
X-MimeOLE:	Produced By Microsoft MimeOLE V6.00.2600.0000
Message-ID:	<WOl88.110475$I8.22755763@news4.rdc1.on.home.com>
Date:	Thu, 07 Feb 2002 02:40:54 GMT
NNTP-Posting-Host:	24.112.9.146
X-Complaints-To:	abuse AT home DOT net
X-Trace:	news4.rdc1.on.home.com 1013049654 24.112.9.146 (Wed, 06 Feb 2002 18:40:54 PST)
NNTP-Posting-Date:	Wed, 06 Feb 2002 18:40:54 PST
Organization:	Excite AT Home - The Leader in Broadband http://home.com/faster
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

"CBFalconer" <cbfalconer AT yahoo DOT com> wrote in message
news:3C61E6BB DOT 7F9AD526 AT yahoo DOT com...
> Please look at the following disassembly:
>
>  585:   8d 04 d2                lea    (%edx,%edx,8),%eax <<***
>  588:   8d 04 82                lea    (%edx,%eax,4),%eax <<***

If I get this right [in NASM notation] the two lines are

[1] lea eax,[edx+edx*8]
[2] lea eax,[edx+eax*4]

In line [1] you get eax = edx + edx * 8 = 9*edx

In line [2] you get eax = edx + 4*(9*edx) = 37 * edx

since I assume edx equals the original value, this should compute 37 * h

Tom

- Raw text -