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The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... br />
The basic specs on the Mega-Drive ... explanation on how you would program the Mega-Drive:
RAM (named Work RAM), use it ... MEGA DRIVE "
DC.B " TEST "
DC.B " "
Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …
... BUS, random access memory (RAM), read only memory (ROM), ... together to perform maths, program flow, boolean algebra, data ...
"Sinclair Spectrum BASIC programming", by Steven Vickers, 1982 ... to make, run and test your assembly language programs. ...Whole upper memory lostHi! I own a rubber key Spectrum with 48K RAM. Suddenly it lost it's whole upper memory. All diagnostic programs says that it's 16K model with workin…
... 's just a failed RAM chip, or perhaps a ... bad contact between a RAM chip and the IC ... by writing a small program (in BASIC?) that goes over all ... etc), and after each poke compare read-back value with ... and schematic shows which RAM chip corresponds what that bit ...Whole upper memory lostHi! I own a rubber key Spectrum with 48K RAM. Suddenly it lost it's whole upper memory. All diagnostic programs says that it's 16K model with workin…
... br /> I did POKE 32768,0 and then PEEK 32768 and i ... and gave PRINT PEEK 23732+256*PEEK 23733 and it ... /CAS circuit inside the RAM, or the tri-state ... region. The ROM memory test is smarter than many ...
If the "game test" fails, try disconnecting (cutting) the ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... RAM.
; --------------------------------------------------------------------------
; Free to use unoptimized test program ... br />
ret ; Back to BASIC!
; ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... to upload a tape test for you within the ... has 8K of internal RAM but still uses some clever ... to use that extra RAM but that paper as ... ]
The following BASIC program will boot Cybernoid:
RAM... my method is generic ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... proposal seemed very efficient and basic is the only thing you ... 23733 (182 BYTES) and the BASIC program area cut down below 24064 ...Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... /> I had written a BASIC proggie that I called "Desculador ... TO 50012:READ b:POKE a,b:NEXT a ... PEEK 50014=0 THEN LET m$="Program: "
70 IF PEEK ... /> 80 LET start=(PEEK 50027+256*PEEK 50028)
90 ... loaded ONLY THE "STUBBORN BASIC's HEADER" from tape. ...Programming flash eprom on DIVIDE+Can you test it on DIVIDE PLUS ? [url]http://velesoft.speccy.cz/other/flasher-divide-plus.zip[/url] (This flash utility is WINSTON's flasher for dia…
... BASIC program from rom to ZX ram + move short code for system switching. BASIC program ... key can be disabled via POKE :-)
Or complette in ...Help needed with simple MCode routineI'm trying to code a routine to clear the screen and I can't figure out why it's not working: ld hl,16384 ld bc, 6144 loop:ld (hl),0 inc hl dec bc l…
... as a sub in ZX Basic too:
[url]http ... />
[code]
SUB FASTCALL test ()
asm
ld hl ... =16384 to (16384+6143)
poke num, peek (num-16384)
next ...
pause 0
test()
pause 1
48k Out of memoryIv just had a 48k Speccy arrive today. The keyboard wasnt working right so I changed that. Now when I tried to load Cyclone it started to load ok fo…
... :[/QUOTE]
bad upper ram? meaning that it's effectively ... are things you can poke and peek to test the ram, I'm sure ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... RAM.
; --------------------------------------------------------------------------
; Free to use unoptimized test program ... br />
ret ; Back to BASIC!
; ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... RAM.
; --------------------------------------------------------------------------
; Free to use unoptimized test program ... br />
ret ; Back to BASIC!
; ...Supertest 128 - Loader QuestionI wonder if someone could explain (in simple terms please) :) , the purpose of the switch code. I see what is doing (going to 48k mode via spectrum)…
... OK) which causes the current program to stop running. To ... and full 128K of RAM without 128 BASIC getting involved and ... m not sure what the POKE 23750,4 does!
... replacing line 6 with POKE 23611,128 and then ... +3 Spectrum. What this POKE does is reset bit 4 ...Saving space...Hi Folks, Looking for ways to save some memory in a program I am writing. In a number of places I have the following code: [CODE]xxxx PAUSE 1: …
... to generally save space in BASIC is getting rid of any ... properly on high ram, and then read it using PEEK.
program DATA statement, and where your array sits on RAM.
[code]PRINT PEEK address + 2[/code]New To Group....Hi All, A quick introduction as this is my first post. I am a Scarborough, UK based chap who is quite heavily into retro computing, more specificall…
... be quite unusual for a RAM chip to only be faulty ... there). However you can easily test for this, so it is ... />
POKE 16384, 255
then
PRINT PEEK 16384
Next try:
POKE 16384, 0 ...I cant get this listing to run!Ive read this through so many times my eyes are misting up! [url]ftp://ftp.worldofspectrum.org/pub/sinclair/magazines/DUC/Issue08/Pages/DUC0800039.jp…
... the contents of the 6116 RAM.
Anyway, all pointers now ... PEEK HL should give 40, the nr. of tracks. Do POKE HL ... again.)
Then FORMAT a test disc right away in the ... test disc can be (re)FORMATted to normal. BTW, don't poke ...I cant get this listing to run!Ive read this through so many times my eyes are misting up! [url]ftp://ftp.worldofspectrum.org/pub/sinclair/magazines/DUC/Issue08/Pages/DUC0800039.jp…
... once you understood. The program below will bring you in ... /> For Opus Discovery with 6116 RAM
------------------------------------------------
10 CLEAR ... '
Line 140: poke 15, the new nr. of ... br /> Now format a test disk right away, this disk ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... string function to the free RAM pseudo-string a$ (eg. ... =30618]"storing machine code in BASIC"[/thread] from last August).
BASIC"/regular BASIC timing comparison by writing a ... free RAM as strings it took 8 seconds; using a PEEK/POKE loop ...DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
...
I want to program free version of firmware selector ... are ready, I must it test on real hardware.
... rom and zx ram and mb02 ram use same memory ... and 128 basic can be emulated with extra ram pages ... also emulated with extra ram. All roms are switchable ...multiple songs with savage enginesorry friends, another thread with my stupid questions. maybe wos should introduce a noob section for people like me? :oops: anyway, how does using …
... the line, savebin "test.bin",begin,end-begin, ... make these changes to test.asm in tritone folder.< ... br />
savebin "test.bin",begin,end-begin
basic, just POKE startaddress+1,a. Where ... etc), then do,
PEEK tritone+1 ,to get the ...RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... the very end of the program), the corresponding HALT line ... effect is that the program executes in an endless ... the reset condition, and peek locations BBB9 and BBBA to ... to select a 16K BASIC ROM. This is a ... but with the initial RAM value changed so this ...Renegade (the hit squad)Hi fellow spectrum peeps,nice to meet you all!,and what a great site you have here!. I have been given a spectrum +2 which didn't load tapes,until i…
... =gasman;542501]From a quick test, this appears to be true ...
POKE 49152,123
OUT 32765,17
PRINT PEEK 49152 ... needed paging with the +3 BASIC/+3DOS stuff disabled.writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... basically. Perhaps starting with the BASIC program:-
[code]
10 FOR ... =16384 TO 23295
20 POKE n,255
30 NEXT ... into my emulated Speccy's RAM and run my application?[/QUOTE ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... into my emulated Speccy's RAM and run my application? If ... so, which RAM address should I load it ... just input some lame BASIC programs to test if the emulation was ... where I run this "monitor program" from rom, will it allow ...Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…
... which jumps to the specified BASIC line number instead of ... DEF FN p(a)=PEEK a+256*PEEK (a+1):
... (errsp):
POKE sp,FN g(mctrap): POKE sp+1,FN ... (errsp):
POKE sp,FN g(errgoto): POKE sp+1,FN ... to get out of the program, as an OK/STOP ...Progress Sprinter resurrectionI've been digging through my HDD once again and found all the docs on the sprinter again (pcb files/schematics/solder plans/bios sources/software etc…
... Kb Video RAM, but I was not able to test it (512x256 ... 256 colours) Is there a test program? Some days ago I got ... hope, Boriel will expand ZX BASIC Compiler for this platform too ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
... 70 RANDOMIZE 34044:POKE 23606,PEEK(23670):POKE 23607,PEEK(23671):RETURN
POKE 23676,PEEK(23671):POKE 23675,PEEK(23670):RETURN
... V2, V3 etc.. Sinclair BASIC won't allow 'V5' ... />
The second program (starts at address 44000) fails ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... finished my Model Railway Timetable program and thoughts are starting to ... stretching the performance of Sinclair BASIC. :smile:
As always ... VAL "7";"i"; PAPER z;" Program End"
600 STOP
770 REM
790 POKE p,ATTR (i2,i1+i7 ...
