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Amiga Computing - Commodore Is Awesome

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MI LETTERS<br />

HELP FILE<br />

Chips with<br />

everything<br />

(I WILL soon be getting a memory<br />

expansion for my A500 end<br />

wourd like some Information.<br />

1. Could you please tell me<br />

what is the new "Chipmem<br />

Option" that is being offered on<br />

some of the newer memory<br />

expansions and will there be any<br />

soldering needed to use it.<br />

2. Could you also tell me how<br />

can tell if my 1.3 <strong>Amiga</strong> has the<br />

new fatter Agnuschlp, as I have<br />

read that newer 1.3s have it fitted.<br />

My kickstart version is<br />

34.5. Do I have a fatter Agnus?<br />

K. L. Paulson.<br />

Rusholme,<br />

Manchester.<br />

These two questions are related,<br />

so I'd like to answer them backwards<br />

if you don't mind. First of<br />

all the fatter Agnus is present in<br />

ECS (Enhanced Chip Set)<br />

machines. Run Checkagnus or a<br />

similar program to determine if<br />

you have it. Alternatively lift<br />

the lid and check the version<br />

number (if it is greater than<br />

8371 then you have ECS).<br />

The ECS will give you, among<br />

other things, the ability to use<br />

one meg of chip memory. Chip<br />

memory is the one that can be<br />

directly addressed by the DMA<br />

channels of the custom chips and<br />

is required by sound and graphics<br />

programs.<br />

The chipmem option on expansion<br />

boards will only work if you<br />

have ECS, but you will have to<br />

modify your motherboard. Nasty.<br />

Programming<br />

triangle<br />

am a student studying for A<br />

Level computer science. I need<br />

to learn Pascal for my project<br />

work and I would be grateful if<br />

you could send me a list of any<br />

Pascal compilers available for<br />

the <strong>Amiga</strong> 500. 1 am looking for<br />

a simple to use program (I use<br />

BBCs at college) which is,<br />

preferably, as cheap as possible.<br />

M. Lott,<br />

Student villa<br />

Your luck is in Mr Lott Not<br />

only is one available, but it is<br />

so cheap it was in the PD section<br />

of the August issue.<br />

hits the shops and when it gets<br />

reviewed in the mug_ what normally<br />

happens is the software<br />

house send us the finished.<br />

shrink-wrapped game 0 week or<br />

Iwo before it gets into the shops.<br />

We decide whether or not to<br />

review it, and if so the review is<br />

written in about a week to ten<br />

days. It then goes into the magazine.<br />

A worst case scenario means<br />

that the delay from us getting the<br />

game to it appearing in a review in<br />

a shop is about seven weeks, The<br />

best case is about two weeks.<br />

Software houses all have their<br />

favourite mags, depending on how<br />

they see circulation, readership<br />

and the independence of the editorial<br />

team from advertising<br />

accounts. This is why we<br />

sometimes don't receive a certain<br />

game at all, ever.<br />

Its all very interesting, but<br />

remarkably petty at times.<br />

Virus vandals<br />

THANKS fur the advice on those<br />

naughty Rampage wallies giving us<br />

a virus on their disk magazine. I<br />

checked my copy as soon as I saw<br />

your warning and, yes, it was<br />

infected.<br />

My copy of VirusX4 killed it off<br />

a treat, however when I read Steve<br />

Tibbet's dot files on the various<br />

symptoms of Lamer II it prompted<br />

me to check all disks that I'd used<br />

in the past couple of weeks.<br />

After going through some 50<br />

disks I found another infected one.<br />

Stampede 2 disk 2 (Rampage's previous<br />

name). I definitely hadn't<br />

used this one since I had purchased<br />

Rampage 3, so maybe this<br />

one had originally been the<br />

infected disk and it had infected<br />

the later issue.<br />

I'm telling you so that you can<br />

pass this on to the rest of our readers,<br />

though I'm sure most would<br />

check all their Stampedelampage<br />

disks "just to be sure".<br />

This brings we round to the subject<br />

of virii in general. I've found<br />

three breeds: The irritating, the<br />

awkward and the nasty.<br />

The first kind don't do any damage.<br />

they just need a swift dose of<br />

VirusX to clear them up. The second<br />

kind normally don't do permanent<br />

damage.<br />

They also need VirusX, but vou<br />

will probably have to do a bit of<br />

repair work. The nestles are those<br />

that kill your disk's data perma-<br />

nently, This is vandalism in my<br />

view and the culprits should be<br />

punished severely. We have<br />

enough problems with disk's copy<br />

protection causing programs to<br />

crash or hang. •<br />

This can be caused simply by<br />

your drives being dirty, misaligned<br />

or out of tolerance slightly. So<br />

when creeps start spreading<br />

destructive programs around it's no<br />

fun at all.<br />

Botch of Botch of<br />

the Month<br />

YOU were too late with your Botch<br />

of the Month on "How to install a<br />

disk". I just assumed my poor<br />

knowledge of how to use<br />

Workbench was to blame: I've<br />

wiped the disk.<br />

Anyway, it's made me write and<br />

ask about <strong>Amiga</strong> <strong>Computing</strong> doing<br />

some articles for the likes of me<br />

who hasn't got a grasp of CL<strong>Is</strong>.<br />

I would like to have ago at learning<br />

how to program, but all the<br />

books I've looked at and all your<br />

articles seem too advanced, or al<br />

least assume a high degree of<br />

understanding.<br />

I need a beginner's and intermediate<br />

level guide to stand any<br />

chance of grasping what it's all<br />

about.<br />

Because of this "tbickie" level<br />

all the disks you include with the<br />

mag aren't any use to me because<br />

I'm system illiterate and don't<br />

know what possible use any of the<br />

utilities are likely to have.<br />

I've only been reading the mag<br />

for a short while, and it's cost with<br />

disks I'm not using had made me<br />

decide to cancel. But I'll hang<br />

. for a while now I've written to give<br />

on<br />

to a chance to help me. S. Heywood,<br />

Bark,<br />

N. Yorkshire<br />

Hey dude, don't put yourself<br />

down! Anyone can learn to use the<br />

<strong>Amiga</strong>: It's not difficult, it just<br />

takes time.<br />

By not using the cover disks you<br />

are denying yourself the best possible<br />

learning tool - experimenting.<br />

It doesn't matter if you don't know<br />

what is going on, but you'll never<br />

learn if you don't try<br />

If you are really stuck, the<br />

Abacus range of books are a good<br />

place to start, We will be address,<br />

ing the problem of lqing to appeal<br />

a bit more to folks new to the<br />

machine, so stay tuned to this<br />

channel!<br />

I wouldn't hold out much hope<br />

for the "Botch of the Month'<br />

explanation. Some brainless nerd<br />

managed to botch them too. Sigh.<br />

Remove the last INSTALL from the<br />

last line (INSTALL dlO:) and it will<br />

work. Probably.<br />

Coding challenge!<br />

I HAVE a problem which I want to<br />

put as a challenge to your readers.<br />

Basically I am trying to write a<br />

program which will produce a fixture<br />

list for any even number of<br />

players.<br />

For example, for four people<br />

A,B,C and D it will give:<br />

Round I, A vs. B and C vs. D<br />

Round 2, A vs. C and B vs. D<br />

Round 3, A vs. D and B vs. C<br />

Simple you say! However, with<br />

more players it gets exponentially<br />

more complex, For eight players<br />

the solution is relatively simple,<br />

but after that it gets really hairy...<br />

I have written a program in<br />

AMOS that will calculate up to 24<br />

players relative quickly (three<br />

hours!) but it merely tries each<br />

match until it finds one that will<br />

fit.<br />

My challenge is: Can anyone<br />

calculate 26 or more players, or<br />

better still, find a mathematical<br />

formula that will give solutions for<br />

any number of players? It's not as<br />

easy as it looks!<br />

Paul Williams,<br />

Northfield,<br />

Birmingham<br />

I had to physically restrain Aj<br />

from loading his C compiler and<br />

writing a program here and now<br />

He had glazed look in his eyes.<br />

and he kept muttering "binomial<br />

expansion" over and over.<br />

However, I'd rather throw tht•<br />

challenge over to you, the loya:<br />

readership. Can you write a program<br />

which will do the trick?<br />

Pedigree poser<br />

A CRY for help to you and your<br />

readers! A disabled relative of<br />

mine is a keen and successful racing<br />

pigeon breeder. This has been<br />

a life time hobby and since<br />

retirement a lifeline.<br />

However because of his disabil<br />

ity, he now finds writing a frustrating<br />

task, so with me being an avid<br />

<strong>Amiga</strong> user I have offered to log<br />

and record his large and changing<br />

stock of pedigree birds. Here we<br />

hit the problem.<br />

Racing pigeons require a pedigree<br />

to be sent with the birds to<br />

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