Top 10k strings from qsdefend.tap in <root> / bin / z80 / software / ZxTapGames.zip / games /

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   1 work around this problem.
   1 ship etc. so that things can flicker, appear twice, or have a
   1 shearing effect. Hopefully this isn't too noticeable given how
   1 qsdefpic  
   1 qsdefemu  C
   1 qsdef81   
   1 qsdef.p   
   1 program on a 48k speccy you'd never know it was running. :-)
   1 on the ZX81.
   1 of each line of characters are skipped, which results in a
   1 look more unfair than it really is.
   1 it's still worth having as it is, IMHO.
   1 it can have unpleasant interactions with the movement of your
   1 isn't a problem with the emulation though, it does just the same
   1 includes the screen memory, so while you could in theory run the
   1 if it returns...
   1 framerate, but the staggered drawing can make it look odd, and
   1 for lower tone and noise periods than the speccy can manage. But
   1 fixed 24 lines the speccy allows. The top and bottom pixel lines
   1 favourite of mine. The two main reasons I 'ported' it were:
   1 fast the game is :-), but it can make the collision detection
   1 distorted display.
   1 ZX81 programs run in the 4000-7FFFh area of memory. This
   1 You can email me at [email protected].
   1 WHY QS DEFENDA?
   1 WHY IS IT 128-SPECIFIC?
   1 To be honest, while the game's not bad, it isn't really a big
   1 This version copes with both, albeit imperfectly.
   1 The title screen graphic is a scan from an old Quicksilva ad.
   1 The most obvious is that only a third of the screen is updated
   1 The game is slightly faster than on the ZX81, though not by
   1 The 32-line screen had to be squashed to fit in the unavoidably
   1 TITLE SCREEN
   1 Shoot the baddies, and avoid their shots. Not too advanced. :-)
   1 Qsdef81 - ZX81 QS Defenda patched to run on the 128k Spectrum
   1 QS Defenda is/was copyright Quicksilva. All the stuff I did
   1 QS Defenda
   1 PROBLEMS WITH THE PORT
   1 PLAYING THE GAME
   1 Keys are 6=down, 7=up, 9=thrust, 0=fire, space=quit.
   1 I think the sound is an octave or more out, due to the different
   1 Finally, when the game ends any AY sound is left going. This
   1 CONTACTING ME
   1 AY clock used on the speccy. And the QS sound board provides
   1 55555555555555555555555555555555555555555vv
   1 2. Documentation
   1 128s have an alternative screen in page 7 which you can use to
   1 1. Start game
   1 -- Press space to return --
   1 -- Press space for more --
   1 - the original QS Defenda itself supports AY sound, believe it
   1 - it uses a really weird display (31x32 characters!) which most
   1 (patching, emulation, etc.) is public domain.
   1 (from the ZX81 display) each frame. This gives quite a good
   1 "qsdefpic"
   1 "qsdefemu"
   1 "`$:?()><=+-*/;,.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
   1 "Sorry, this program needs a 128."
   1   supports this, and even then you have to explicitly enable it.
   1   or not, through the QS sound board. As far as I know only z81
   1   ZX81 emulators have problems with even if they support it;