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Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... write some little routines to test how dec operates on ... =Z-7
60 POKE X,16*Y+Z
program... Imagine all day I ... on anything execpt that the program counter is able to inc ... school who actualy programmed in BASIC all the rest were ... -
Old homemade hardware?Hey there, I've been given a bunch of ZX Spectrum stuff, I've mostly fixed the computer, just need a membrane. But what I was wondering is that there…
... include:
[LIST]
[*]Program not loading correctly, causing errors ... fault (either the 16k "lower" RAM) or...
[*]"Upper" (as in ... type in a short BASIC program to test the RAM next.
[I ... -
Break into programIs there any way of stopping people using the break option in my software productions so they can list the code.
... previous routine all in BASIC; GOSUB 9993 to ... eg. "L BREAK into program". All it does after ... current BASIC line+statement and resume running the program ... POKE 23680,PEEK 23670: POKE 23681,PEEK 23671:
RANDOMIZE tadd: POKE sp, PEEK 23670: POKE ... -
display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... proggie I wrote to test plotting with POKE (that is, direct ... shifting and OR operations in BASIC... which was fun. I ... [CODE]10 REM plotting with poke
12 PAPER 0: ...
1190 LET byte=peek(adr): REM get current byte ... v/2)=v/2 THEN POKE adr,b(idx)+byte: ... -
Break into programIs there any way of stopping people using the break option in my software productions so they can list the code.
... BASIC statement. To jump to some other part of the program ... attempting to quit the program as otherwise you won ... br /> FOR a=PEEK 23613+256*PEEK 23614+2 TO ... PEEK (a+1)62 THEN
LET levels=levels+1: POKE ... a,41: POKE a+1,35: POKE a+2 ... -
A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... to put that routine inside BASIC). I'm doing it ... PEEK 23670: POKE VARS+3,PEEK 23671:
POKE rv,234: POKE rv+1,CODE "": POKE ... line in the program.
The two "POKE ... CODE ..." ... restore it before returning to BASIC. [/quote]
... -
Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... existing BREAK only works in BASIC. If we only could extend ... SH-ram that holds the build year has changed. So the program ... ;key scan
CALL 8020 ;test BREAK
LD HL,dump2 ... -
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…
... near the start of the program.
Also, it's ... practical and consistent with the program logic, as this will minimise ... of the program as possible.
For timings in BASIC you ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... lines of assembler from a BASIC program into an array. There's ... :
.... RANDOMIZE da: POKE 23563,PEEK 23670: POKE 23564,PEEK 23671
[*]Assign it ... ,PEEK 23670: POKE da+5,PEEK 23671:
RANDOMIZE length : POKE da+6,PEEK 23670: POKE ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... so very fast. Boriels ZX Basic Compiler is better for game ... /> 100 POKE 23607,INT (p/256): POKE 23606,p-256*PEEK 23607
900 POKE 23606,0: POKE 23607,60[/code]
RAM starting from 32768. In this ... -
The official CSSCGC 2014 threadJust to announce that the comp.sys.sinclair Crap Games Competition 2014 is now open. It's home for the year will be; [url]http://www.mykeweb.co.uk/c…
... - fittingly it uses the Spectrum BASIC equivalent of PHP coding with ... past UDGs when learning to program back in the 80s and ... speed of swapping with POKE 23606/7 or POKE 23675/6 I ... 192 UDGs in in this test alone.
[IMG]http://www ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... a +3 disk with a basic program. I have a couple of ... 0:
LOAD !"screen"SCREEN$ : POKE chans,111:
SAVE "screenprog ... stkend=PEEK 23653+256*PEEK 23654:
LET ramtop=PEEK 23730+256*PEEK 23731 ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... the game. Fix by Zup: POKE 65232,59.
[*]Cylu: Locks ... pick the letter "L", the program resets. [URL="http://file.qip ... inserting a POKE command provided by jp in the first BASIC block ... Nonsense in BASIC" error due to 128/+2 RAM disk commands implemented ... -
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…
... DEF FN p(a)=PEEK a+256*PEEK (a+1)[/b]< ... /> 189:
190 [b]POKE u,v-INT (v/256 ... ) actually work, but the program runs in 71 bytes less ... the first version and the BASIC listing is a pleasingly ... SCANNING rather than explicitly via POKE, and saves 23 bytes ... -
IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…
... were caused by the 'corrupted RAM' problem, but after I learned ... that often the workspace in RAM where the 'disk parameters' ... endurance test, during which some 100,000 accesses to both RAM and ... to SDcard were made by a BASIC program, without ... -
ZX Alien BreedNot sure if this has been mentioned already (I did trawl the threads but couldn't see anything :smile: ), but I've always hankered after a Speccy Ali…
... decimal value using the following program:
10 LET P = 32000 ... ; 255 THEN STOP
40 POKE P,A
50 LET ... /> As you can see, VERY basic (pun not intended), but this ... the sprite engine soon, using 'test' sprites. Once I have it ... -
128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... of transcribing that smaller test program to a simple basic loader:
POKE 65000+n, a: NEXT n ... , 244
[/CODE]RUN this program, then after the 'E Out ... -
128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... of transcribing that smaller test program to a simple basic loader:
POKE 65000+n, a: NEXT n ... , 244
[/CODE]RUN this program, then after the 'E Out ... I tried Saving a wee BASIC program, it made all the proper ... -
TAPlist - the emulator versionI've got this working reasonably well; there's just a couple of small extra features which I want to add. (Recall that TAPlist writes a formatted lis…
... the BASIC runner, as they caused a problem if the program being ... PEEK 23628:
LET c=PEEK (v+6)+256*PEEK (v+7):
POKE ... 23620,4+(7 AND (PEEK ... v193 OR PEEK (v+4 ... -
Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... RAM returns.
Now enter
POKE 32768,0
PRINT PEEK ... Now enter
POKE 32768,255
PRINT PEEK 32768
This ... Now enter
POKE 32768,170
PRINT PEEK 32768
This ... The above tests will also test the other chips used in ... -
Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... RAM returns.
Now enter
POKE 32768,0
PRINT PEEK ... Now enter
POKE 32768,255
PRINT PEEK 32768
This ... Now enter
POKE 32768,170
PRINT PEEK 32768
This ... The above tests will also test the other chips used in ... -
48K: Half of copyright message in the middle of the screen?!Issue two. Has 74LS08 over the Z80, but the ULA is 5C112E-3 (I think this should be a 5C102E??? - I have one, but I'm not sure if it is working, at l…
... quick basic test...
Now you need to run a test program that ... because the run from a test ROM or a [URL="http ... the "lower" RAM. But as I have a test ROM, I have ... -
Dock's ZX Maze gameI'm hoping to finish a simple maze game in ZX Spectrum BASIC this week, as part of the Ludumdare Retro challenge. I used to dabble in speccy basic on…
... 's some extracts from a program which I've been working ... z$;INK 5;x$: POKE 23729,r: POKE 23728,k:
GO ... -
UDG tricks?I always enjoyed using [URL="http://www.worldofspectrum.org/ZXBasicManual/zxmanchap14.html"]UDGs [/URL]for the 'sprites' in my games, when I coded th…
... at the beginning of RAM, 6K from 16384 to ... and variables of any BASIC program. A system variable ... which will let your BASIC program be as big as ... the beginning of your program, because it clears ... POKE.
And don't CLEAR so low that your BASIC program ... -
Dock's ZX Maze gameI'm hoping to finish a simple maze game in ZX Spectrum BASIC this week, as part of the Ludumdare Retro challenge. I used to dabble in speccy basic on…
... 's some extracts from a program which I've been working ... z$;INK 5;x$: POKE 23729,r: POKE 23728,k:
GO ... -
analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …
... a BASIC program is running, assemble this program wherever, put:
"CLEAR 63999: POKE ... a=64000
8942 IF PEEK a=128 THEN
... STOP
8944 LET b0=PEEK a:
IF b0> ... : LET b$=STR$ (PEEK (a+1)+256*PEEK (a+2)):
... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... start of the game. Fix: POKE 65232,59.
[*]Cylu: Locks ... pick the letter "L", the program resets. [URL="http://file.qip ... inserting a POKE command provided by jp in the first BASIC block ... Nonsense in BASIC" error due to 128/+2 RAM disk commands implemented ... -
48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…
... an upper RAM fault that is corrupting the BASIC operating ... generation of the upper RAM CAS and so the ... more of the upper RAM ICs is faulty. You ... POKE and PEEK to place values in the top 32K of RAM ...
If faulty upper RAM is interfering on the data ... -
48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…
... an upper RAM fault that is corrupting the BASIC operating ... generation of the upper RAM CAS and so the ... more of the upper RAM ICs is faulty. You ... POKE and PEEK to place values in the top 32K of RAM ...
If faulty upper RAM is interfering on the data ...
