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Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... , one does
1 DEF FN l(x,y)=USR 60000 ... a block with, say, RANDOMIZE FN l(16384, 6912)
;; definition like FN l(x,y). The first ... of second arg
ld d,(ix+13) ; high byte of ... -
BASIC to Python - bringing a modern view on an 80's obsession...Howdy! I don't know how relevant this will be here, but I've just finished up a 3-part overview on my blog where I convert an old 1K ZX81 basic pr…
... . If you ask me, I'd say BASIC, with all its ... probably easier with functions (GOSUB/DEF FN) than BASIC.
As ... -
Bored of the Rings coded messageI was browsing [url="https://tcrf.net/"]The Cutting Room Floor[/url] recently and stumbled upon the entry for [url="https://tcrf.net/Bored_of_the_Rin…
... out the letter which I'd missed out in line 3 ... , restricting results to A-Z (FN c() is true). With a ... ,123,226,205,32:
DEF FN c(a)=a>=CODE ... -
Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…
... ]
6 DEF FN x(x)=INT (x*dp9+dp5): DEF FN y(y ... ,draws: PLOT FN x(x1),FN y(y1):
FOR d=k1 TO ... draws:
READ x2,y2: DRAW FN x ... (x2),-y2:
NEXT d:
NEXT ... -
POKE taking a variable amount of time...Hi Folks, Does anyone know why the following POKE statements seem to vary in their execution time? [code]100 POKE 60000,10 110 POKE 60001,16…
... [/i] instruction as if you'd typed the values into an ... /> Also, if you use the DEF FN approach, how do you access ... evaluated, for example for DEF FN a(x,y) when x ... -
Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…
... entirely different result. The DEF FN was put at line 2 ... :
[code]DEF FN a(a$)=USR 65368[/code ... ]
The assembler for FN a(a$) is:
... ,(ix+4)
ld d,(ix+5)
ld ... ret
STKSGN: ld d,a ;store signed A on ... -
Finished with my dice rolling programTook me all day but I'm rather proud of it, simple though it is. Its up at Dropbox if anyones interested https://www.dropbox.com/s/qdgtfc0zyy94hxm…
...
[code]
1 DEF FN p(a)=PEEK a+256 ... a+1)
2 DEF FN b(a)=(a-INT ( ... /> LET n$=STR$ FN b(PEEK (bitsat+a ...
39 FOR d=1 TO 5 STEP ... 40 FOR r=d+1 TO d+3 STEP 2: ... 41 NEXT a: NEXT d
49 NEXT k< ... -
How to improve my program using oversized numbersI'd like my dice program to print out the number four times bigger than normal if possible. Anyone know how to do this? Or I could write a sub rou…
...
[code]
1 DEF FN p(a)=PEEK a+256 ... a+1)
2 DEF FN b(a)=(a-INT ( ... /> LET n$=STR$ FN b(PEEK (bitsat+a ...
39 FOR d=1 TO 5 STEP ... 40 FOR r=d+1 TO d+3 STEP 2: ... 41 NEXT a: NEXT d
49 NEXT k< ... -
Command line compiler?How do people compile their BASICs these days? I'm thinking of something along the lines of an ASM compiler. E.g. you have a file on your hdd named …
... in the instructions; eg.
"FN d(h$(2 TO))+"
would ... be typed as:
"{A8}d(h$(2{CC}))+"
otherwise ... as plain text and the DEF FN would give a "Nonsense in ... -
are there any machine code to basic converters?i know it sounds stupid but for amature programmers like me it would be great. i could speed up the basic on an emulator and it would give me more of…
... /> [code]
1001 DEF FN b(a,b,c,d,g,v)=g ... =0 TO 2: GO SUB FN b(val1,val2,o,8 ... /> 1090 FOR p=0 TO d-1:
LET e1=INT ... -
Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... REM PlotDraw191.BAS
4 DEF FN p(a)=PEEK a+256 ... /> 11 LET p191=FN p(PD): LET d191=FN p(PD+2 ... ,C=ABS y,ABS x; D,E=SGN y,SGN x ...
push de
ld d,$00
DLlarge:ld h ... -
Need Some Basic HelpHi all, I’ve decided to give programming in Spectrum Basic a go again (bit of nostalgia trip!) and I’m trying to develop a CYOA style game. How…
... br /> [code]
3 DEF FN p(a)=PEEK a+256 ... "Data file name? ";d$: IF LEN d$>10 THEN GO ... /> 1031 IF NOT LEN d$ THEN GO TO 1020< ... br /> 1033 PRINT " LOAD """;d$;"""CODE ";bstart;",";blen
1034 ... LOAD d$CODE bstart,blen
... -
Need the title of the Sinclair Basic manual to look for itI had a copy but I've lost the USB chip it was on! I need it to look up commands because some Basic programs I looked at all used the command MOD and…
... that suggest that one could DEF FN as MOD? In other words ... any BASIC manual you'd have noticed that DEF FN can only support ... lot of time and it'd be in assembly, and it ... Spectrum BASIC already, but you'd rather try 'all those Basic ... -
Need the title of the Sinclair Basic manual to look for itI had a copy but I've lost the USB chip it was on! I need it to look up commands because some Basic programs I looked at all used the command MOD and…
... snotty remark about 'if you'd read any basic manual' - I ... I didn't know how DEF FN works.
I come ... -
Need the title of the Sinclair Basic manual to look for itI had a copy but I've lost the USB chip it was on! I need it to look up commands because some Basic programs I looked at all used the command MOD and…
... BASIC manual you'd have noticed that DEF FN can only support ... believe you are explaining that DEF FN MOD() is not possible ... can be defined a DEF FN function in BASIC to ... ZX Spectrum 48K BASIC as DEF FN a(b,c) with ... attached.
10 DEF FN a(b,c)=((b/c ... -
Need the title of the Sinclair Basic manual to look for itI had a copy but I've lost the USB chip it was on! I need it to look up commands because some Basic programs I looked at all used the command MOD and…
... snotty remark about 'if you'd read any basic manual' - ... I didn't know how DEF FN works.
I ... that's not how DEF FN works then you blame ... know about DEF FN then you need to read about DEF FN, just ... 'I didn't know how DEF FN works' is a lame excuse ... -
Why buy a Raspberry PI to learn programming when you can learn on a Spectrum?I had a raspberry PI for just over a year, never did anything on it except it was fun to get it hooked up to the Internet and be surfing it on a syst…
... pretty decent.
I'd really like to see some ... things one can do with DEF FN. I think it was a ... perimeter function:
10 DEF FN p(a,b)=2*a ... *b
20 PRINT FN p(20,50)
Is there much ?Do you think there`s much cooperation, and in fact co-development now goes on within the 8-bit community.. in fact is there any? I know that`s a daf…
... a thing or two regarding Def FN and special pokes etc etc ...
