Path: utzoo!mnetor!uunet!portal!atari!apratt
From: apratt@atari.UUCP (Allan Pratt)
Newsgroups: comp.sys.atari.st
Subject: Re: Mshrink() (was "BITNET mail follows")
Message-ID: <1047@atari.UUCP>
Date: 27 Apr 88 17:04:56 GMT
References: <4983@chinet.UUCP>
Organization: Atari Corp., Sunnyvale CA
Lines: 27

From article <4983@chinet.UUCP>, by dag@chinet.UUCP (Daniel A. Glasser):

> Mshrink() takes two parameters, the first is a pointer to the beginning
> of a block of memory that has been allocated by a call to Malloc() (this
> includes the basepage/TPA of a program in memory) and the second
> parameter is a long containing the number of bytes to be freed. 
> Mshrink() is a GEMDOS function and has function code 74. 

Poor Dan Glasser has forgotten something:  the macro Mshrink includes
a dummy parameter, because the Gemdos call has an unused argument.

#define Mshrink(base,newsize) gemdos(0x4a,0,base,newsize)

Most macro files (including Atari's osbind.h) have this definition, but
you have to know it's there if you're setting up your own bindings.

This is a handy time to mention that the arguments to Fdatime are
documented wrong: the correct call is:

	Fdatime(timebuf,handle,wflag)
	int *timebuf;		/* pointer to two int's */
	int handle;		/* handle of file to change */
	int wflag;		/* 1 for write, 0 for read */

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt