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From: oster@dewey.soe.berkeley.edu (David Phillip Oster)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Expanding System Heap
Message-ID: <28767@ucbvax.BERKELEY.EDU>
Date: 12 Apr 89 06:42:51 GMT
References: <13002@dartvax.Dartmouth.EDU>
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Reply-To: oster@dewey.soe.berkeley.edu.UUCP (David Phillip Oster)
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In article <13002@dartvax.Dartmouth.EDU> jskuskin@eleazar.dartmouth.edu (Jeffrey Kuskin) writes:
>    I am in the process of writing an interrupt-handler which will
>install itself into the SYSTEM heap.  The handler itself is not large
>(300 bytes or so), but it requires a large data buffer (approx. 40K).
>All this is for a 1 Meg SE, by the way.
The Startup Manager chapter of Inside mac Vol 5. describes a mechanism for
making the system grow the system heap for your INIT before it runs it.
You paste a resource into your INIT that contains a LongInt of how much
space you need for you INIT to run. INIT 31 will grow the system heap
before running the INIT.