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ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... copied into RAM to run first, then return to Bank 0 to finish off ... from ROM could be copied to the BASIC area, and the screen ... beginning of your code to switch back to internal rom.
to change to internal rom.
< ... -
Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... 0x5B45 PUSH BC ; with the return address (ROM)
0x5B46 ... BC ; Preload stack with return address
LINE-END: ... ; REPORT-C - Nonsense in BASIC (ROM)
;Handle CLEAR ... /> 0x5BFA JP (HL) ; return to the previous stack's ... -
So it occurred to me; "Why bother with going into 48K BASIC when you can just....wrap the machine code calls inside a 'RST #28;DEFW addr:RET'?" Of course, you DO need a small M/C routine to do that, and ta-daaa, here it is: [cod…
... ' for the 128 BASICs to enter the 48K ROM and ... a 48K speccy, and then return to the 128K ROM. By ... the first 128K BASIC didn't have to copy all the ... many different routines that BASIC relies on, to the new ROM, ... which i'm beginning to use quite often in a ... -
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…
... , COPY, NEW, REM, RETURN, STOP and the functions which ... altered like this before returning to BASIC:
[code]
... (for RE_ENTRY)
ret ;return via $3365 RE_ENTRY
[/ ... can be used to get USR to return a string rather ... -
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…
... ,201 and it will return safely (and print the ... , and there are some options to do:
... runing some unintended line of BASIC.
- RANDOMIZE will ... some effects if your BASIC uses RND after that ... you won't be returning to Basic (like most games), ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... USR addr. to BC
ld hl, 2D2B ; return address is ... USR addr. to BC
ld hl, 2D2B ; return address is ... af ; restore state and back to basic
push hl ; push ... -
THE LIGHTBULB EFFECT You know what that is? Like how cartoonists depict a bright idea by drawing a lightbulb over the head? When I was trying to work out the lengt…
... so no return value has to be stored in BASIC or something ... engineer was creating the BASIC command they would ... , you need to use a BASIC method that accepts ... the chance to return a value from code to BASIC I guess ... .
I have to ... -
THE LIGHTBULB EFFECT You know what that is? Like how cartoonists depict a bright idea by drawing a lightbulb over the head? When I was trying to work out the lengt…
... engineer was creating the BASIC command they would ... code, you need to use a BASIC method that accepts ... the chance to return a value from code to BASIC I guess ... in order for Sinclair BASIC to work with it (because ... have had a BASIC with just POKE to do everything, ... -
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
... />
(2) To start with, the ROM and BASIC interpreter will have ... of the BASIC area, where it should have room to grow ... have no intention of returning to BASIC.
(3) CALLs ... put the address they will RETurn to onto the stack as well ... -
Scart Leads for spectrumHi, I was going through my stuff the other day and found I have all the bits for making spectrum scart leads. I was going to ebay them but thought …
... an unoiled chainsaw trying to cut through concrete). What ... text in the "+3 BASIC" bar distorts so it ... I can see it return to normal over about two minutes ... limited use to me, whereas a Spectrum-to-composite (i ... 's RGB/Peritel socket to the red/white/yellow ... -
c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…
... thing would be to make loader from BASIC, so that ... follows:
BASIC loader could look like this ... ldir everything from #5B00 to #5FFF to upper third of VRAM (which ... - enable interrupt
- return correctly to BASIC, so it will continue with ... -
Serious facts about the ZX Spectrum Serious fact Number 1: It is a business machine. From an article about and interview with Sir Clive ( by Mike Cowley) Sir Clive says here:-"Nor…
... for another Sinclair machine only to discover emulators. Hooray!
... again as before mainly thanks to gamers and I very ... However the fun of Sinclair Basic (having used it for the ... here today[/i]
but to return to the point...
... -
Komando 2 incompatible with the +2A models, anyone could supply a poke or a loader to make it work?http://www.worldofspectrum.org/infoseekid.cgi?id=0002734 Is any way to make it work in the +2A models with a loader or poke? Thanks!
... directly, from BASIC, because memory that needs to be poked, ... />
To be successful, you need to run the assemblycode ... Or you could make it return back to BASIC after decompression, do the ... poke in BASIC, and then ... -
ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …
... keyboard was a pig - why return to that?!?... Its perhaps not such ... I still like to type out the odd basic program from time ... to time... The other thing ... Exodos commands typed from 128k basic... For those of us who ... -
Re. new Spectrum Hardware :What are the advantages and disadvantages of Crowdfunding for WOSSERSIn other words who and how does it help?
... sense.
The basic idea is that :- Repeat business ... customers and they will return to the same show next ... of fame" offerings have to create sustainable and profitable businesses ... .It also encourages companies to release underdeveloped and "half ... -
BREAK key on 128k SpectrumWhat happens when BREAK is pressed on a 128k Spectrum? Why is it different from what happens on a 48k Spectrum. Is there a way to disable it or to …
... 's an example of a BASIC error handler which is called ... change the error return to point to my routine or to restore the original ... on the machine stack pointed to by ERR_SP. The loop at ... -
How to stop a flickering character erasure?I'm trying to figure out how to build a moving sprite. Eventually it will be made up of several UDG's. However its early days yet so I'm experimentin…
... a Next to be able to run an extended BASIC when there ... a RETURN, at least not if you want to use ... haven't requested not to) of the variables that ... procedure, and have them return to their original values on exit ... TO ax,ay TO bx,by TO dx,dy TO cx,cy TO ex,ey TO ... -
Why do we do it?I was sitting down thinking just now, why am I so into this Spectrum retro scene thing? Better than that why are there so many of us into the retro s…
... /> Birthday parties was an excuse to have friends revolving around it ... Christmas was the right time to ask for a long sought ... .
It was accessible, basic was easy to pick up, and there ... part I can always return to. Whenever I want to, trouble free, good ... -
LOAD""CodeWhy did some games load this way? Is it something to do with not having a 'header' or something? And if so why not? Also do we have a list of games …
... stack, it can be altered to return to unexpected places. When using LOAD ... will return to the BASIC interpreter (and then it tries to find next BASIC instruction ... , you can make it return to another address to launch a machine code ... -
48K Rubeer Key Spectrum Keyboard OverlaysThe use of keyboard overlays touched on by me here:- [url="https://worldofspectrum.org/forums/discussion/55006/recreated-spectrum-what-do-we-get-f…
... So I need to check to see if any basic solution tlike ... .
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I return to the "paid for" Quicksilva PDFs ... -
FOR vs LET (speed)Hi dear friends. A question for you 10 FOR I = 0 TO 10 11 PRINT I 12 NEXT I 10 LET I = 0 20 PRINT I 30 LET I = I+1 40 IF I < 11 THEN GOTO …
FOR loop = nearly 11 frames
LET loop = nearly 13 frames
Time difference taken from breakpoints at #1300 (about to execute RUN command) and #1303 (return to editor after executing BASIC program). -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... font
SymShift+Space: Exit to basic
[code]
; Console ...
CR EQU #0D ; carriage return
BRK EQU #18 ; break ... shift bit
ret z ; return if no other key pressed ... /> or a
ret z ; return if null char
ld ... -
48K Spectrum for sale For sale: Spectrum 48K, bought c.1983 or 4, mint condition, still in original box with manuals, leads, some sort of 'introduction to BASIC' cassett…
... , leads, some sort of 'introduction to BASIC' cassette, etc.
Also many ... Sinclair.
Any offers to [email="jbjevans@hotmail.com."]jbjevans ... -
MICRO=GEN Owner Died Yesterday.Mike Meek died yesterday. He was owner of Micro Gen. Rest in Peace and thanks for great memories. ============================================ [B]…
... the Postman
Pyjamarama
Return to Earth
S.A.S ... -
Level 9 GamesHello, I'm looking for the following Level 9 games :- Snowball Return To Eden The Worm In Paradise Does anyone have copies of these games that the…
... games :-
Snowball
Return To Eden
The Worm In ... games that they are willing to sell?
Necros.
Problems with SPIN,I've bought a brand new PC. It is an AMD XP 2000, with 333 Mhz RAM (512 Mb), a GeForce 2 MX and fast hard drives and stuff... And SPIN crawls. I don'…
... /> What's up?? Should I return to the ol' X128 and R80 ...NEW INTERFACE FOR ZX SPECTRUM!!Hi all zx-maniax! Here is a letter from Polish inventor, Yarek Adamski. He constructed a new brilliant interface for ZX SPECTRUM. Ready carrefuly i…
... carrefuly if You want to plug in to Your ZX many, ... ,
- what to do to keep possibility to connect also
... are plugged.
To return to my tests. Several years ago ... /> - YAMOD.ZXINPUT - gives possiblility to connect keyboard
and mouse ...
