Syntax/Syntax ZX80 v3 n6

Volume: 3
Issue: 6

Articles

  • UK Products Listing
    Want to know first-hand what’s happening with British ZX hardware, software and publications? We have a limited number of official show guides from the 3rd ZX Microfair, held 30 April-1 May in London.
  • Syntax Errors
    Using Program 1 in Frank Oโ€™Hara’s Numbers Held Inexactly, Apr.82, 1E13 gives 172 17 132 231 42.
  • Spectrum Shown at London ZX FairZX Spectrum
    SYNTAX editors saw Sinclair’s Spectrum at the 3rd ZX Microfair in London (see May 82).
  • Adventure AZX81 Software review
    Adventure is not for impatient or unimaginative players. It has no bombs, no graphics, and no split-second decisions. It is an intellectual game requiring thought rather than reflexes.
  • Sinclair Drops US ZX Prices as of 1 JuneZX81
    Sinclair Research lowers the prices on their ZX products in the US 1 June 1982, according to Margaret Bruzelius of Sinclair.
  • Screen Background for GamesZX81 Type-in program
    A dark or solid background often gives a better effect for printing or plotting in games. With an 8K ROM and 16K RAM, an almost instant background is possible in BASIC.
  • Report from the 3rd ZX Microfair
    The third ZX Microfair was held 30 April-1 May 1982 in London. Besides Sinclair’s new Spectrum, we saw some new ZX81 products.
  • Numbers Held Inexactly on the ZX81, Part 4ZX81 TS 1000 Type-in program
    The ZX81 doesn’t hold simple decimals like .5 & .25 exactly.
  • New Prices from CAI
    CAI Instruments announced new prices for their ZX peripherals.
  • Loading Hexadecimal ListingsZX81 Type-in program
    This program converts the hex and stores it into a space explicitly for it.
  • Hardware Preview: RD8100 SystemZX81 Hardware review
    RD8100 motherboards and modules are building blocks that plug onto your computer or together to create instant systems.
  • Expanding Existing 16K ProgramsZX81 Type-in program
    If you upgraded to 48K RAM for your ZX81, you may think it simple to add a few program lines and enlarge the variable arrays in existing 16K RAM programs to utilize the increased memory capacity.
  • Exchanging Registers, Part 6ZX80 ZX81 Tutorial
    In addition to the eight registers A,F,B,C,D,E,H and L covered in an earlier article, the Z80 (central processing unit in your ZX80/81) has a twin set of alternate registers.
  • Byte-Back Modem Shipments Delayed
    Byte-Back will ship no modems for 4-6 weeks.
  • The Sinclair ZX81 Programming for Real ApplicationsZX81 TS 1000 Book review
    This book is aptly billed as being for people who want to get down to business with their ZX81s.
  • AnnuityZX81 Type-in program
    Program calculates the payments needed to pay off a loan or how many years it takes to pay off a loan at a fixed payment.
  • Users' Groups
  • Dear EditorZX81 Type-in program
    Cassette recorders; speed with 16K; jumping to program lines quickly; handling negative numbers; wirewrap edge connectors; replacing cassette jacks; techniques for saving memory variable space.
  • Adding a Joystick to Your ZX81ZX81 TS 1000 Hardware project
    Wire a joystick to map to the arrow keys.
  • Random Pixel PlotZX81 Type-in program
    Two line program to randomly plots points.
  • A Package From England, or, How I got a real ZX Printer
    Details on ordering a printer from WH Smith and adapting for US use.
  • Line RenumberingZX81 Type-in program
    Two approaches to renumbering program lines, one in Basic, the other in machine code.
  • New Product Announcement (Syntax v3 n6)ZX81
    ZX FORTH, battery back-up units.
  • Program ImprovementsZX81 Type-in program
    Improvements to READ-DATA-RESTORE, Flower Plot, Income Tax program.
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