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Amstrad Action July 1987 Type-Ins

2,286 bytes added, 21:38, 24 August 2012
Created page with "The following listings were published in the July 1987 issue of ''[[Amstrad Action]]'': === Type-Ins === * Weekday (Gary Nugent) * Fancy Text Generator (Richard Turner) * Sine-..."
The following listings were published in the July 1987 issue of ''[[Amstrad Action]]'':

=== Type-Ins ===

* Weekday (Gary Nugent)
* Fancy Text Generator (Richard Turner)
* Sine-wave Writing (Andrew Perry and Andrew Crawford)
* Random Lines (Dak Long Lau)
* Megadump (Pat McDonald)
* Zycloid (J. Smeets)
* Neutron Maze (Tommy Daffin)

=== Problem Attic ===

* Reading the screen - reads a character from the screen, like the <tt>COPYCHR$</tt> command in BASIC 1.1

=== Hot Tips ===

* Hyperweird (Haden Jackson-Robbins)
* Banking from Basic (Alex Aird) - using a firmware <tt>CALL</tt> on the CPC6128 to access its additional memory banks
* Prime numbers (David Pollard) - consists of two listings – one to generate prime numbers, and another to find them

The "Prime generator" listing takes 165 minutes to generate the first 7,500 prime numbers in BASIC 1.1, and longer still – 174 minutes – in BASIC 1.0. The author claimed in his letter to ''Amstrad Action'' that "it takes just under half an hour to run".

== Bugs ==

The version of ''Weekday'' that is modified for the change to the Gregorian calendar in England contains a minor bug; the day of the week for 14th September 1752, the day after the Gregorian calendar was introduced in England, is not calculated correctly.

''Fancy Text Generator'' lacks a <tt>MEMORY</tt> command, so the program could easily be overwritten and stop working or crash.

== Download ==

* [[Media:AmstradActionType-Ins_022.dsk.zip|DSK file]]

== Screenshots ==

<center><gallery style="clear: both">
Image:AmstradActionType-Ins_022_Weekday.png|<center>Memory</center>
Image:AmstradActionType-Ins_022_FancyTextGenerator.png|<center>Fancy Text Generator</center>
Image:AmstradActionType-Ins_022_Sine-WaveWriting.png|<center>Sine-wave Writing</center>
Image:AmstradActionType-Ins_022_RandomLines.png|<center>Random Lines</center>
Image:AmstradActionType-Ins_022_Zycloid.png|<center>Zycloid</center>
Image:AmstradActionType-Ins_022_NeutronMaze.png|<center>Neutron Maze</center>
Image:AmstradActionType-Ins_022_PrimeGenerator.png|<center>Prime generator</center>
Image:AmstradActionType-Ins_022_PrimeFinder.png|<center>Prime finder</center>
</gallery></center>

{{DEFAULTSORT:Amstrad Action 1987-07 Type-Ins}}
[[Category:Amstrad Action Type-Ins]]
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