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number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…
... machine stack to get USR to return a ... /> DEF FN p$(n,l,r)=STR$ USR address: ... ) := "1.0"
FN p$(1,-5,3) := " ... 1.000"
FN p$(1,-5,0) := " ... ) := "-00.120"
FN p$(0,0,0) := ... -
need a new method for m/c parameter assignmentI've been using a variable length function of the form: "FN a$(a$,a[,b...,z])=STR$ USR md" to search a data table and return a string result. By putt…
... form:
"FN a$(a$,a[,b...,z])=STR$ USR md"
USR md" can be persuaded to ... FN side of it is too slow. With four parameters the "USR ... up things by using "PRINT USR a$,a[,b...,z];" ... manipulating the return from the USR function so that I ... -
USR 0I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is th…
I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is the point of loading a program in USR 0 mode, and what does it actually DO? -
handy method for passing m/c parametersI knew that a single number or string parameter could be passed to a m/c routine with either: [b]LET a=b+USR address[/b] puts b on the calculator st…
... /> [b]LET a=b+USR address[/b]
puts b ... [b]LET a$="abc"+STR$ USR address[/b]
puts a ... [b]LET a=b=c+USR address[/b]
puts b ... LET a=b=(c=(d+USR address))[/b]
puts ... quicker than using a DEF/FN, as there's no ... for which a DEF FN would be better. -
IZX: a new standard format and driver for ZX-Spectrum icons[B]IZX[/B] is a very compact and efficient standard format to create icons for the ZX-Spectrum. You can download it from here: [LIST] [*][URL="http:…
...
20 DEF FN z(r,c,i)=USR 55000[/CODE]
[CODE]FLASH FN z(5, 8, 16)[/CODE ... -
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)…
... .
[code]
2 DEF FN t$(n,t,d)
+VAL$ (("FN t$("
+STR$ (n-INT ... -
MOVE_M Object Movement Manager for BASICAs moving things around on the screen is usually the slowest part of a game written in BASIC, I've been pottering around with this routine to handle …
... PEEK (a+1): DEF FN i(d,a)=USR MOVEI:
REM ... LET MOVEM=FN p(ORG+10)
13 RESTORE USR DOTRAP: GO ... br /> REM RESTORE USR DOINT : do stuff : RESTORE USR NOINT:
... REM replace USR labels with the ... -
SCREEN$ bug fixI've been using the SCREEN$() function recently for reading data off the screen rather than taking up space with an array and I got fed up with the s…
... $(row,col) use FN c$(row,col) where FN c$() is defined ... as DEF FN c$(r,c)=STR$ USR ScrDol0 .
[code ... -
dumping protected BASIC loadersI wrote this a few weeks ago but forgot to post it. It will load & list from tape/TAP/TZX any BASIC program which has been saved with SAVE, including…
...
[code]
2 DEF FN p(a)=PEEK a+256 ... 0:
LET bc=USR mc: IF PEEK bytes THEN ... PRINT :
LET ps=FN p(bytes+11): LET bs ... =FN p(bytes+15): LET ... (bytes+12): LET bc=USR mc
10 LET ... a+PEEK (a+1);":";FN p(a+2); PAPER ... -
Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…
... READ y
34 POKE USR "b"+x,y: REM Custom ... READ y
44 POKE USR "c"+x,y: REM ... READ y
54 POKE USR "d"+x,y: REM ... READ y
64 POKE USR "e"+x,y: REM ... READ y
104 POKE USR "i"+x,y: REM Volume ... READ y
114 POKE USR "j"+x,y: REM Volume ... -
RANDOMIZE USR, PRINT USR etcHello just wondering why is it called RANDOMIZE UsR what does randomising have to do with it ? When calling machine code routine from adress x you ty…
... why is it called RANDOMIZE UsR what does randomising have to ... you type RANDOMIZE USR x. Why not RUN USR x ? I just ... tried PRINT USR 65368 it resets the machine! ... -
Ensure program runs in USR 0 mode?Is there some BASIC that can be used in a program to make sure the the program runs (even on 128k models) in 48k or USR 0 mode? I obviously then wan…
Is there some BASIC that can be used in a program to make sure the the program runs (even on 128k models) in 48k or USR 0 mode? I obviously then want to be able to run the rest of the program from the USR 0 mode. -
Random-Access to Microdrive FileI am working on a BASIC program to backup a microdrive text-file to standard tape array-file. To backup a text-file from one microdrive to a secon…
... RandAccess
20 LET udg=USR "a"
99 CLEAR ... 253
320 POKE DEFADD,FN l(udg):
... POKE defadd+1,FN h(udg):
LET s ...
1311 DATA FN l(buf),FN h(buf)
... 1312 DATA FN l(512),FN h(512)
... -
Loading Bars - Rnd USR cmd ?Morning, Just a quick question - messing about with basic and all those years back I seem to remember a way to create loading bars with a RANDOMISE …
... loading bars with a RANDOMISE USR command with a certain value ... -
Loading Bars - Rnd USR cmd ?Morning, Just a quick question - messing about with basic and all those years back I seem to remember a way to create loading bars with a RANDOMISE …
... loading bars with a RANDOMISE USR command with a certain value ... -
Loading Bars - Rnd USR cmd ?Morning, Just a quick question - messing about with basic and all those years back I seem to remember a way to create loading bars with a RANDOMISE …
... loading bars with a RANDOMISE USR command with a certain value ... -
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…
... 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 ... routine that looks for DEF FN, DATA and (oddly) ... pigs ear of evaluating the FN call!
... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
This is what I've compiled so far:
[quote]Resources
=========
* Make all caps
---------------
You can turn CAPS LOCK on or off using a simple poke to 23658:
POKE 23658,8: REM CAPS ON
... -
how to pass arguments from Basic to MC ?can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this: PRINT USR xxxxx, arg1, arg2:…
... FN method in slightly more detail: define a function as DEF FN ... f(x)=USR nnnnn . In your routine ... -
New - BASin r13a is available for downloadHi all, Here's the latest BASin. Mostly just bugfixes, but also now has the upgraded UDG editor which can now edit multiple UDGs on one editing gri…
... /moves/animates the sprites from FN() commands, but the user can ... that sprite commands using PRINT USR statements can be written as ...
