SyncWare News v2 n2

Date: November/December 1984
Volume: 2
Issue: 2

Articles

  • TMS9918A Video Upgrade: Part 2
    This second installment involves some explanation of the changes to the operating system and how they have been implemented. By actually placing the contents of the ROM on EPROM, you can change any routine, implement extra commands outside of the 8K ROM and have BASIC control of your new routines. It is only necessary to
  • Profile 2068
    Contrary to popular belief, there is a Profile manual under construction. (I have seen the proofs with my own eyes.) There is however, one chapter to go before it is ready for the printer. The manual is comprised of not only instructions, but several modifications, program improvements and upgrades and will be a good tutorial
  • Sinclair QL Update
    The latest word is that Sinclair will take orders as early as November, with deliveries as early as January (FCC permiting). Several improvements have been made to it since it was first introduced, mainly to correct the original discrepancies in the operating system, etc.
  • Forum
    Address for QZX; Tony Gomez has board to convert Compusa disk to interface with DEC drives; Roy Brann offers feedback on machine code article; Kingsley Langenberg would like to know where to find spare parts for ZX81.
  • Machine Code Topics: How to Write Relocatable Z80 Code
    Relocatable code will execute, without modification, when placed at any available address. The techniques to make code completely relocatable are the subject of this article.
  • For Your Support
    Product announcements from Robert Fischer, UAS, Tom Laffin, Knighted Computers, RAMEX, Ben Johnson, Fred Nachbaur, Tom Bent, Jim Houston Enterprises, Paul Bingham, Sum-Ware and Ray Kingsley.
  • Review: Timex Sinclair Intermediate Advanced Guide
    This book was mentioned in an early SAMS offering, but due to the Timex pull-out it was not marketed until September. The demand was strong enough for it. The book starts with a brief but thorough explanation of the insides of the 2068, its architecture and its electronics. A full explanation of digital mathematics follow.
  • Volume No.1 of SyncWare
    We are presently reconstructing and re-editing volume one of SyncWare News. We appreciate your patience. We are hoping to have Volume one out by the end of November. I’m sure that the original subscribers can comprehend the magnitude of this task. The original five issues amounted to 190 pages of 5 “by 8.5”, reduced type!
  • Port Projects: Get the LED-OUT
    In any number of monitoring and/or control uses for your ZX/TS, you may find that using a TV set to check on your system is inconvenient or impractical. This would be so, for example, in outdoor or dirty environments or when you simply wish to check the status of one or two system parameters without
  • Memotech Revisited
    All Timex Sinclair computer owners can expect to get an offer from Memotech soon. This offer is in the form of a trade in. They will reduce the price of their MTX512 computer a substantial amount, depending on what you have to trade in. The MTX512 has been upgraded considerably since it was first announced.
  • Translations: Memotext in RAM
    Here is how to make a copy of the “Memotext” word-processor, which you can save to tape and reload later into RAM or NVM (non-volatile memory) in the 8-16K range.
  • Basil's Compendium: PEEK, POKE & USR
    Reviews the operation of the ZX81 memory, discusses PEEK and POKE and introduce the USR command.
  • Decimal to Hex and Back
    Converting from hexadecimal to decimal number systems has been the bane of many an aspiring machine code programmer. This listing does the converting for you. When you RUN the program, a prompt asks you for a hex number. You can either type one in to get the decimal equivalent, or press ENTER to flip to
  • On Loading
    The program presented here creates a modified LOAD command. It moves the routines needed for the LOAD from ROM into RAM and adjusts them to work there. The routines are changed so that when the LOAD completes, machine language code from the 1 REM statement is executed. By changing statement 1, you can completely control

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