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those darned recursive functions againI've been stuck on this one all evening. I want to dump out some memory in binary to debug a program. I've got a simple mod 2 division loop to do tha…
... and (much later) I remembered Dr Beep's recursive DEF FN version, but in between I ... thought I'd write a DEF FN to do it ... and ... 's what I came up with:
[code]
100 DEF FN ... b$(n,s$)
=s$+VAL$ (("FN b$(" + STR$ INT ... -
Can you improve this recursive DEF FN?I came up with this function to scan strings for characters without needing to use FOR...NEXT and IF...THEN, but it seems rather long-winded. Can any…
... ?
Using:
DEF FN w(w$,o$,c)=VAL ... (("FN w(w$,o$,c+1)" ... />
with:
w$(FN w(w$,o$,1))
FN w(w$,o$,1)*100). -
numbers to binaryHi everyone, I have looked through the manual and have found nothing. How do you change a number to binary easily? I know you can go binary to decim…
... recursive definition i very very interesting
[QUOTE=Dr BEEP;544274]1 def fn ... :
2 DEF FN c$(d,b)=VAL$ (("FN z$(d)" AND ... d=b))
5 DEF FN z$(d)=CHR$ (d+48 ... />
:smile:
And FN c$(45648,36) gives Z80 ... -
BASin v.15 DEF FN bugThe bug would appear to be in "BASSupport.pas : Procedure ProcessDEFFN"; as it's not inserting the 6-byte variable place holder after each parameter …
... .pas : Procedure ProcessDEFFN"; as it's not inserting the 6-byte ... each parameter in the DEF FN definition. There's code there to do ... that, but it's not working for some reason ... -
Compiling BasicI'm not good in compiling sinclair basic because i was 15 when i got my first spectrum, and it was the first computer i saw. I wasn't aware of compil…
... , Dr BEEP wrote:
It might even be done with a recursive DEF FN. I ... (A$)
and a DEF FN V(A$)= .... in the begin ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... in #591 which has the DEF FN removed. I agree it is ... still have the possibility of Dr. BEEP's 1 character saving from the ... -
automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …
... [/post], and it's working fine. It's quite a relief not ... a slightly altered version of Dr BEEP's "scanning" method for passing USR ... my former method of using DEF FN. The changes are that I ... I pass the destination routine's address as the last argument ... -
Raising to the powerA curiosity of ZX Basic I found yesterday is that you can't do this: [code] 10 LET x=-3 20 LET y=x^2 [/code] While you can for example do LET y=-3^…
... way of explaining what guesser's already explained ...
... it?
Here's an alternative function, which doesn ... s a lot easier to type in as well.
DEF FN ... />
Any resemblance to Dr BEEP's expression is purely coincidental. -
Raising to the powerA curiosity of ZX Basic I found yesterday is that you can't do this: [code] 10 LET x=-3 20 LET y=x^2 [/code] While you can for example do LET y=-3^…
[QUOTE=Battle Bunny;694001]DEF FN p(n,e)=ABS n^e * (-1 OR INT (e/2)*2=e)
Any resemblance to Dr BEEP's expression is purely coincidental.[/QUOTE]
Yeah right, hide behind a disclaimer :p -
A film with MISTER BEEP's ZX Speccy music! :)Here can be found a film with MISTER BEEP's music made with ZX SPECTRUM! :) [url]http://www.youtube.com/watch?v=dw933RK-v6E[/url] It's really funny! …
Here can be found a film with MISTER BEEP's music made with ZX SPECTRUM! :) [url]http://www.youtube.com/watch?v=dw933RK-v6E[/url]
It's really funny! :)
Best wishes,
Beep
[url]http://republika.pl/mister_beep/[/url] -
Dr Doom's Revengemaybe it's the "super hero game curse" that makes most of the super hero games suck...but when I read about Dr.Doom's Revenge I got really excited ab…
maybe it's the "super hero game curse" ... ...but when I read about Dr.Doom's Revenge I got really ... , Captain America...both taking on Dr. DOOM!!! (although the Fantastic 4 ... -
DEF FN DirectivesI am looking at using some machine code functions from the DK Graphics Pack. They are machine code but they are called via Basic with the function de…
... the function defined such as DEF FN g(x, y, p, q ... -
Happy Birthday Dr BeepHappy Birthday Dr Beep... ...41 or 29H or 101001b today.
Happy Birthday Dr Beep...
...41 or 29H or 101001b today. -
Happy Birthday Dr. Beep !!Happy Birthday Dr. Beep ! Have a good day, have a beer: [_]p ... and keep on beeping those tunes!
Happy Birthday Dr. Beep !
Have a good day, have a beer: [_]p
... and keep on beeping those tunes! -
A Miscellany of Dangerous TipsHere's a selection of ideas for using some of the more obscure system variables which I've found handy on occasion. They can be very convenient if us…
... is from Toni Baker's book [url=ftp://ftp ... the one containing the DEF FN then it's been found.
... and, knowing where it's going back to enables where ... can be done as s simple DEF FN if required often, ... can be done as a recursive DEF FN.
Finally, ... -
Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…
... nowhere.
[code]
2 DEF FN t$(n,t,d)
+VAL$ (("FN t$("
+STR$ (n-INT ... -
Fix for the DEF FN bug of zmakebasSome months ago I discovered a bug in zmakebas: it does not include the 5 bytes required after every parameter of a DEF FN. By the time, the WoS f…
... after every parameter of a DEF FN.
By the time ... -
BASIC Bug: DEF FN after REMHello all, Having mused the Spectrum ROM disassembly by Drs Logan ad O'Hara, I wondered about how good ZX BASIC was at locating the DEF FN when call…
... BASIC was at locating the DEF FN when called upon.
[code]
10 DEF FN a()=10
20 PRINT ... :
[code]
10 REM : DEF FN a()=10
20 PRINT ... ROM routine that looks for DEF FN, DATA and (oddly) NEXT appears ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... *((l=2-2*m(q+FN r(-1)))+(l=17-17 ... *m(q+FN r(1)))+(l=23-23 ... =l+4-4*m(q+FN r(1)*((l=17)-(l ... worth it to check if Dr BEEP's optimization suggested in #439 would ... here (in this case [B]FN r(1)[/B] would be ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... l=2-2*m(q+FN r(-1)))+(l=17- ... 17*m(q+FN r(1)))+(l=23-23 ... l+4-4*m(q+FN r(1)*((l=17)-( ... /> [/QUOTE]
That's excellent!
It is ... worth it to check if Dr BEEP's optimization suggested in #439 would ... here (in this case [B]FN r(1)[/B] would be ... -
INSTR function...Hi Folks, Another little program that people might find useful: [CODE]100 DIM i(4) 110 LET a$="This is some sample text" 120 LET b$="text" 130 GO S…
Here's a recursive DEF FN INSTR one-liner, cunningly contrived ... it in a separate function "FN c(c,o$)" didn't ... work. I thought that maybe "DEF FN c()=c+LEN o$-1 ... .
[code]
4 DEF FN i(w$,o$,c)=
VAL (("FN i(w$,o$,c+1 ... -
Any ideas on how to solve this equation?If I have three numbers 10:A:B where A & B are equal +ve integers <10, what formula could I apply to pairs of numbers (A,10) or (10,B) such that the …
... try and develop a single recursive DEF FN which could do the same ... .
[code]
DEF FN b(n,f,t)
DEF FN n(n,f,t)=FN b(FN b(n,f ... that's not too bad, really. It uses two DEF FNs ... base 16, from which it's only a small step up ... -
AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…
... barmy task of implementing Dr.Beep's idea of providing BASIC ... substantially reorganised so that recursive calls kept the operators ... EX1NUM", so that any recursive calls will build up a ... NEXTQ1: rst $20 ;step over "s
cp $22
... -
those darned recursive functions againI've been stuck on this one all evening. I want to dump out some memory in binary to debug a program. I've got a simple mod 2 division loop to do tha…
... which works anyway, although it's not pretty. The b$ parameter ... is always "", as it's used as a base on ... blank.
[code]
100 DEF FN b$(n,b$)
=("0 ... /> What I need is a recursive DEF FN visualisation utility, which can take ... -
Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…
... />
To PS.
The recursive DEF FN to format the time is ... that, when it's being evaluated, the FN uses an extra ... only way to stop a recursive string function.
... each time, so Andrew's original non-recursive DEF FN was written assuming that ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... recursive DEF FNs are generally, often significantly, slower than the equivalent expanded DEF FN ... evaluated. It's not always possible to expand a recursive DEF FN (eg. if ... describes how to calculate DEF FN memory usage. There's a table of ... -
quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... listings; it uses the ROM's own routine for syntax checking ... and TXT2REMu truncates them. There's a detailed description in the ... ENTER". Use the emulator's Load Binary File option to ... strings (eg. in a recursive DEF FN), use TXT2Emu's "{..}" codes; eg. block ...
