Home Computing Weekly


White Noise And Graphics

Author: D.T.
Publisher: Gilsoft
Machine: Spectrum 16K/48K

 
Published in Home Computing Weekly #22

This program loads a set of 22 machine code routines, tagging them with names, so that they can be called by 'RAND USR name'. The linkages are set up by a BASIC routine that has to be called at the start of a program which uses any of the machine code routines, This could cause problems during program development. as the Gilsoft program would have to be merged in.

The routines provide: wait for a key press, with and without message; scrolling by one pixel distance up, down, left, right; scrolling by one character distance in eight directions; window definition, with associated clear and invert; sound routines; and assorted oddments.

This is not a program which could readily be grafted onto existing routines. Nor would it mix happily with combined BASIC and machine code programs. Subject to those limitations, it has interesting possibilities. The machine code occupies about 1.5K at the top of store.

In general, this sort of 'toolkit' program needs to be approached with care, and more experienced users will often extract the parts they want, building them into their own formats.

D.T.

Other Spectrum 16K/48K Game Reviews By D.T.


  • Everest Ascent Front Cover
    Everest Ascent
  • Ground Attack Front Cover
    Ground Attack
  • Pirate Island Front Cover
    Pirate Island
  • Devil's Revenge Front Cover
    Devil's Revenge
  • Splat Front Cover
    Splat
  • The Visual Processor Front Cover
    The Visual Processor
  • Venture Front Cover
    Venture
  • Orbiter Front Cover
    Orbiter
  • The Detective Front Cover
    The Detective
  • Race Fun Front Cover
    Race Fun