Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!amdahl!kevin
From: kevin@uts.amdahl.com (Kevin Clague)
Newsgroups: comp.sys.amiga
Subject: Re: Sources needed
Message-ID: <055E02KL3eqd01@amdahl.uts.amdahl.com>
Date: 13 Jul 89 15:46:35 GMT
References: <8907122057.AA08021@jade.berkeley.edu>
Reply-To: kevin@amdahl.uts.amdahl.com (Kevin Clague)
Organization: Amdahl Corporation,  Sunnyvale, CA 94086
Lines: 78

In article <8907122057.AA08021@jade.berkeley.edu> MCARTSHA@UREGINA1.BITNET (Shan Mcarthur) writes:
>Hello.  I am in desperate need of some C sources that I can use as examples
>to aid in my learning C on the Amy.  I already know C , but this operating
>system is different than what I am used to.  I have a few books, but they
>either don't have examples or are FAR too simple and have no real applications.
>I would like to find some examples on gadgets, menus, m/tasking, dos operations
>, ect. ect.
>  Also, here in Regina, we can't get Robert Peck's  PROGRAMMERS GUIDE TO THE
>AMIGA (Sybex).  This is totally frustrating.  I hear it is a good book.  If

Yes.  It is a GOOD book. Too bad you can't get one.  Have you looked
at mail order places?

>
>  I have RKM includes & Autodocs, Amiga Programmer's Handbook, and Inside
>the Amiga with C and have found all of them to be either way too simple and
>not informative, or way too informative and no examples of how things
>operate together.   IE:  none of them show me how to non-busy wait for
>a number of different signals.  I would like to know how to accept input
>from a string gadget at the strike of a return key.

If you want to Wait() for many signals, just or the Signal's SigMasks
together and pass them to wait.

Example:

  aSigMask = 1 << aSigBit;
  bSigMask = 1 << bSigBit;
  cSigMask = 1 << cSigBit;

  allMask = aSigMask | bSigMask | cSigMask;

  gotSigMask = Wait(allMask);

  if (GotSigMask & aSigMask) service_aSig();
  if (GotSigMask & bSigMask) service_bSig();
  if (GotSigMask & cSigMask) service_cSig();


Nice and simple....

I extracted this from MandelVroom sources that were posted in
comp.sources.amiga.  There are about 400K of source there in a relativly
full figured program.  You might want to start with main.c which
contains the main Wait() loop.

>
>  i am totally frustrated at the lack of docs for this computer, but I hear
>that Peck's book is what I really need.

It is not that there is a lack of docs.  It is that you lack access to
docs.  The Amiga docs have gotten a lot better especially due to the
efforts of Rob Peck (a really nice guy.)  Back when there were no
docs, I used sources off the Fish disks.  I gave the sources to
MandelVroom away, so people like you could have working examples to
many nice features available on the Amiga.

MandelVroom spawns off tasks to do picture Mandelbrot and Julia picture
generation, so you can look at the code for how to handle Multitasking.

>
>Again, I am just waiting to learn, but am short on some good examples.

If you need help sorting through the MandelVroom sources, let me know
and I'll help.   Good luck!

>
>Shan

Kevin
-- 
UUCP:  kevin@uts.amdahl.com
  or:  {sun,decwrl,hplabs,pyramid,seismo,oliveb}!amdahl!kevin
DDD:   408-737-5481
USPS:  Amdahl Corp.  M/S 249,  1250 E. Arques Av,  Sunnyvale, CA 94086

[  Any thoughts or opinions which may or may not have been expressed  ]
[  herein are my own.  They are not necessarily those of my employer. ]