Re: A89: Re: Stupid Question
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Re: A89: Re: Stupid Question
It depends on how much to push to the stack...
-Miles Raymond EML: m_rayman@bigfoot.com
ICQ: 13217756 IRC: Killer2 AIM: MRayMan
http://www.bigfoot.com/~m_rayman/
-----Original Message-----
From: Ben Rodgers <bentensai@yahoo.com>
To: assembly-89@lists.ticalc.org <assembly-89@lists.ticalc.org>
Date: Monday, February 22, 1999 9:43 PM
Subject: Re: A89: Re: Stupid Question
>How do you know how much to add to the stack?
>
>---Miles Raymond <m_rayman@bigfoot.com> wrote:
>>
>> Load Effective Address = lea
>>
>> The 10 in front of the (a7) loads the address of a7 plus an offset
>of 10
>> into a7. As to which one is more efficeint, I assume that lea is,
>since it
>> is used most often for restoring the stack.
>>
>> -Miles Raymond EML: m_rayman@bigfoot.com
>> ICQ: 13217756 IRC: Killer2 AIM: MRayMan
>> http://www.bigfoot.com/~m_rayman/
>>
>> -----Original Message-----
>> From: Daniel Walls <flinn@mindspring.com>
>> To: assembly-89@lists.ticalc.org <assembly-89@lists.ticalc.org>
>> Date: Sunday, February 21, 1999 11:53 PM
>> Subject: A89: Stupid Question
>>
>> >Which is more efficient for cleaning up the stack...
>> >
>> >add.l #10,a7
>> > ..or..
>> >lea 10(a7),a7
>> >
>> >and I know they both do the same thing,
>> >but how does lea(a7),a7 work? I know what it does,
>> >but what does it mean?
>> >
>> >Lazy way to 68k,
>> >- Daniel Walls
>> >flinn@mindspring.com