Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!rutgers!cbmvax!darren
From: darren@cbmvax.commodore.com (Darren Greenwald)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Short Hello World
Message-ID: <21806@cbmvax.commodore.com>
Date: 22 May 91 19:10:21 GMT
References: <1991May21.030058.9972@cinnet.com> <1991May22.132222.29285@cs.umu.se>
Reply-To: darren@cbmvax.commodore.com (Darren Greenwald)
Organization: Commodore, West Chester, PA
Lines: 29

In article <1991May22.132222.29285@cs.umu.se> dvljrt@cs.umu.se (Joakim Rosqvist) writes:
>In article <1991May21.030058.9972@cinnet.com> kilian@cinnet.com (Kilian Jacob) writes:
>>
>>Subject: Re: Short Hello World
>>
>>OldOpenLibrary:
>>	moveq.l #0,d0 ; any version number -- this takes up two bytes
>>OpenLibrary:
>>	...           ; just continue using the new OpenLibrary code
>>	rts
>>
>>-- /<ilian
>
>Unfortunately, they are not as smart as you. They use:
>
>OldOpenLibrary:
>	  moveq.l #0,d0 
>	  jsr     OpenLibrary(a6)
>	  rts
>
>6 bytes more than necessary!
>
>
>/$DR.HEX$
>
What about ramlib which SetFunctions the OpenLibrary() vector so that
libraries can be opened off of disk (after dos is up, and running)?
It would require far more code to SetFunction both vectors than it
does to have OldOpenLibrary() jump through the OpenLibrary() vector.