The Sinclair QL Forum

Hi Bwinkel, On a QL, NEXT will increment in a FOR loop, but not in a REPeat loop. The QL uses NEXT in FOR loops to activate 'loop epilogues', but not in REPeat loops : 100 FOR loop=1 TO 5 110 PRINT loop !! 120 NEXT loop: REMark increments loop and falls through to epilogue on loop=5... 130 PRINT 'en...

Hi Again,

After further tests,the limit is 'f0='999999999', as with 10 digits there are rounding errors....

Ie: a='1234567891': b='1234567892': print a=b gives true !

Steve.
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Yes Per, You are right, the routine is ok with big numbers. With f0='9999999999999999999', the program factorises correctly on QPC in 53 seconds, but f() needs to be DIMed as 39 ! with f0='1234567890123456789', the answer is right in less than a second... And the limit is for yet bigger strings.... ...

Hi Folks, Many years ago, I experimented with writing 'stereo' music on my 128ko JS QL. Of course, with one speaker, this is strictly speaking impossible. So I wrote pulsed square-wave music, where 'low' is stereo one and 'high' stereo 2. The result allows two instruments to play 'simultaneously' in...

Hi TMD, After adapting your 'factors' program for SGC and QPC2, (using END FOR instead of NEXT etc), any number on my systems is factorised in less than a second.... The limiting factor on big numbers is not so much MOD as INT(). MOD is easy to rewrite, but not so INT(). DIY arithmetic operators on ...

Hi Tofro, There was a superb FIND_AREA / FILL_TEXTURE routine included in Talent's 'GraphiQL' program, never seen elsewhere ? Pity ! Probably recursive too... TMD : Thor struck the vikings down, because he liked to eat them fried ! Thanks for an honest review... as you say, you have to be nimble wit...

Cheer$ Chr$ !

Steve.

Hi Folks, With the hot weather, don't forget to blow the dust off your circuit boards. My PC was running up to 70°C. Now down to 52°C... I finally got around to converting the 'Thunderbolt' screen saver into a game, after lots of tweaking to get rid of quirks. (Tested under QPC2 and SGC). LRUN then ...

Hi, Sorry for hogging this thread with screen savers. I will try finishing the 'games' versions soon. Here is another recursive version, a tree designer : Lrun or ESCape. The first counter is for recursions, the second for the total of branches. As 'pruning' is random, the trees are more accurately ...

Hi, Here is another variant of the previous recursive screen saver, which draws 'neurones' : RUN or ESCape. The counter is to keep account of recursion, too much and the interpreter would fatally crash ! I hope a 128ko QL will have enough memory : Ok on SGC ! Regards, Steve. neurones_bas.zip