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SRAM HI*RES
AN EXTENDED BASIC PACKAGE
FOR ZX81/TS1000 with STATIC RAM from $2000 to $3FFF
or
TS1500 with STATIC RAM plus 32K or more of RAM
by
Gregory C. Harder
and
Fred Nachbauer
(C) 1986
WRX16 core by Wilf Rigter
Distributed by:
SILICON MOUNTAIN COMPUTERS
C-12, Mtn. Stn. Group Box
Nelson, BC V1L 5P1
Canada
ACKNOWLEDGEMENTS
If you have ever written a long program, especially one in machine-code, then you know that not everything you write can be 100% original. Unfortunately, it is impossible to give credit to everyone who helped along the way. However, a few names do come to mind, including W. Rigter for the WRX16 core routines, R. Kingsley for HOT Z, H. Doakes for the line and circle algorithms, T. Baker for her book, D. Woods for his book, Cambridge for the ZX ROM, and K-MART for selling us our first TS1000.
SRAM HI*RES --2--
INTRODUCTION
Welcome to SRAM HI*RES. This is a compact package of machine-language routines designed to maximize the usefulness of your ZX81/TS1000/TS1500 with STATIC RAM in the $2000 to $3FFF area (8-16K). It gives you 38 new commands (some with several variants) that you can call from BASIC. An extensive DEMO is included to help you get the feel of the package, and to demonstrate some of the techniques you can use. You don't have to know the first thing about machine-code to use SRAM HI*RES to the fullest. If you know how to program in Sinclair ZX BASIC, you will very quickly learn how to use the new SRAM HI*RES commands.
A single USR entry point accesses all of the routines, and a unique method of passing parameter lets you use virtually any expression that is valid in standard Sinclair ZX BASIC. No POKEing or PEEKing around to print variable, etc.
This manual fully details the operation of SRAM HI*RES. Study it carefully, as there is a great deal of information here.
BACK-UP POLICY
Since you're buying this package as a programmer's utility, you have some duplicating rights not normally granted for applications software. You may include SRAM HI*RES core in your application for sale of other distribution, under the following conditions:
1. A copy of you program must be sent to Silicon Mountain Computers
2. Instructions for extracting or using SRAM HI*RES must not be included in your documentation. No part of this manual or the DEMO program may be included without written authorization.
This only applies to material you'll be circulating, whether free or for payment. Provision 1 does not apply, of course, to software that you write strictly for your own use. The point is, while SRAM HI*RES is sold as a programmer's utility, it is NOT considered "public domain." Exercise to honesty and fairness that has become the hallmark of (most) ZX/TS computerists, and all will be well.
If the tape you received is defective, we will of course replace it at no charge. However, you are expected to make sufficient back-up copies of the programs to insure that you will not lose them. Tapes CAN and DO go bad, so don't put it off.