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Setting breakpoints in source code to make debugging easierAfter two years I've resumed my Speccy coding project. I'm porting a yet "unported" game from C64/Atari to 48k Spectrum using Z80 assembler. At the m…
... game from C64/Atari to 48k Spectrum using Z80 assembler ... have 2768 lines of assembly code and that's ... my current setup how to efficiently debug my program. ... , I have enough time to manually trigger the debugger, ... is can I can't return to my program.
What Speccy mag would you like to see return?[img] https://i.imgur.com/VkMKheV.png[/img] In an ideal world... What Spectrum magazine would you like to see return to newsagents to cover the ZX…
[img] https://i.imgur.com/VkMKheV.png[/img]
In an ideal world... What Spectrum magazine would you like to see return to newsagents to cover the ZX Spectrum Next?How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... />
The basic concept of all assembly programing is:
...
Read some memory, perform an instruction to ... /> RET ; return to whoever called us, BASIC in this case< ... from.
RET ; back to BASIC
Or, 01 ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... sp1_AddColSpr(), SP1 will return to you a "struct sp1_ss" to describe the sprite ... a C program got to do with the Basic system? Nothing usually ... of a video frame. The Basic system puts the z80 in ... some inline assembly because we're not quite ready to talk about ...Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... to GOTO a basic line number from assembly to z88dk, making it possible to exit to basic ... if an error occurs, basic returns back to the asm or C ... example) and then run "STOP" to return to the C/asm program. Quite ... used in the TS2068's basic for the ON ERR ...Currah MicrosourceHi Anyone here got a Currah Microsource ? I have one, its one of the original eval units complete with 'draft' manual. Just interested to see how …
... with and without MicroSource) except return 255 (as one would expect ... />
To test the ROM I have written a little assembly program ... before the program crashed (returning to BASIC with the wrong ROM paged ...Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…
... usual, making a function from assembly is pretty easy:
[ ... [/CODE]
With a return type of FIXED, it returns ... bits that work well in assembly, to basic for the bits that you ... prototyping code in Basic, and rewriting in assembly for speed and ...The complete Spellbound (48k) RAM disassemblyHello everyone. I just wanted to share the fruits of almost two years' labour; I've produced a [URL="http://www.dur.ac.uk/philip.anderson/disassembl…
... + `attr` + ',,' + `wdth` + tile_addresses + '(' + `addr` + ')'
return self.expand(udgarray_macro, cwd)
to Basic' routine should end with ... I'll update my assembly when I get a ... computer explode, the world to end, or, perhaps ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... that returns the score to BASIC
Machine code ... needs to be done before returning to BASIC
;return score to BASIC
assembly language instruction for 'return to calling program' (in our case a BASIC ... from basic will return the value from 0 to 65355 ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... :???: If I, say, enter this BASIC program, where line 25 loads ... USR 65535: RETURN
Did I omit to do something? ... I am almost totally unable to understand assembly language of any kind ... , let alone try to make an ...Manic Miner loading screen adjustmentHad half an hour spare earlier and wanted to try a few things. Always like to learn anyways even now. [URL="http://www.yellowspider.co.uk/speccy/Man…
... tiny tweaks, instead of returning to basic we now expect a ( ... headerless) 32768 length codeblock to be loaded after the pic ... to basic after drawing it but because we're "calling" it from assembly ... (note 'call' not 'jr' or 'jp') it will return to ...Cap'n Rescue One Version 3.0Hi, just wanted to let everyone know that I've updated my ZX Spectrum platformer Cap'n Rescue to bring it in line with the graphical style of the…
... Sinclair and Sinclair User to learn about BASIC programming.
... language was perfect for my return to programming after so many ... ve picked up enough to know that assembly language is far ... language. That's why BASIC even exists, and packages ...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 STACK ... af ; restore state and back to basic
push hl ; push ret ... address it just shows the assembly.
2. C source ...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!
... will need decompressing, which the assembly start code (RANDOMIZE USR VAL ... /> Or you could make it return back to BASIC after decompression, do the ... poke in BASIC, and then RANDOMIZE USR ...AY musicThis is a format I'm proposing for an AY music player. If anyone can see any problems or anywhere it can be improved please say so. An AY music form…
... /> F End Stream - 000-7FF return to stream position, 1bit on, all ... Will only work if programmed to be synchronised between channels.
to allow for multiple sized instruments ... is intended. As the basic structure doesn't change it ...Basic listings memory occupationI remember readong someplace that due to basic's representation of number, in a program, in order to save space, it was better to represent integers …
... remember readong someplace that due to basic's representation of number, in ... a program, in order to save space, it was better ... to represent integers by stuff like:< ...Vote Spectrum! (One last time)I've written my last article for the Micro-mart computer world cup competition. This time - as I think you all already know - it's the FINAL against…
... Computer Mart forum (go to [url="http://www.micromart. ... today 's standards, the basic A500 can still pack a ... 's still the Spectrum I return to.
I loved ... , the best in-built BASIC I've ever used; ... that made computing accessible to so many for the ...BASin Release 6 available for DownloadHi all - It's another cut'n'paste from CSS :) I've been tapping away again, and seeing as a couple of people have recently seen BASin's latest bits…
... .
Edit BASIC programs, using text-processing tools ... add watches containing any BASIC expression you choose and Single ... can be any Speccy BASIC expression (including such stuff ... each error, and options to return to the program editor or execute ...Zaf-forth to Z80 compiler Build 5This forth like complier is changing almost every day with new items been added. Here is a new Zaf-forth word add it the sptword.fth file - which is…
...
;"Start label used to jump back to start"
... spaces
;"prints 8 spaces to screen"
."Random ... cr
;"print a carrige return to screen"
6 spaces ...
jump start
;"jump to start label"
halt ...How to use rollback in RZX file?A beginner question: I want to record my game action to RZX file. I know it is possible to "save" game during recording and if something goes wrong…
... />
I want to record my game action to RZX file.
return to this state. This is called ... do rollback? I am eager to make some games walkthroughSmax?I've got SMAX v0.0.1, has anybody got any information about it? It isn't on WOS any more as far as I can see. What language does it use (seems like…
... (seems like a form of BASIC)? Is it still in development ... /> DO
FOR i%=1 TO 11
FOR j%=0 ... TO 7
BORDER j%
... />
It compiles this to an assembly listing, and the listing works ...ANN - ZXSoftware.co.uk Update V1.5 21/05/06ZXSoftware has now been updated to V1.5. Changes :- 299 new titles have been added - Listed below. A few thousend new ingame screenshots and loadin…
... br /> Mines of Saturn + Return to Earth Mikro-Gen Ltd
Spectrum Basic Programming Course - Revised Edition ... Editoriale Jackson
Video Basic Issue 02 Gruppo Editoriale ... Jackson
Video Basic Issue 03 Gruppo Editoriale ...Spectrum (and other) Programming BooksHi All I have the following books for sale. I can post to anywhere in the world and take PayPal. All in excellent condition unless stated: Microcom…
... by RG Anderson (BASIC)
Usborne Guide to Computer and Video ... by AP Stephenson
Assembly Language Programming for the BBC ...
Sinclair ZX Spectrum Basic Programming
Sinclair ZX ... Colour Computer : An Introduction to Basic Part 1 (large book and ...Spectrum (and other) books for saleI have the following books for sale. I can post to anywhere in the world and take PayPal. All in excellent condition unless stated. All 5 quid each p…
... by RG Anderson (BASIC)
Usborne Guide to Computer and Video ... by AP Stephenson
Assembly Language Programming for the BBC ...
Sinclair ZX Spectrum Basic Programming
Sinclair ZX ... Colour Computer : An Introduction to Basic Part 1 (large book and ...ANNOUNCE: Jet Set Willy: Party Willy [Special Edition 2007]Today (23rd April) is the third anniversary of the full release of [i]Party Willy[/i], Daniela Hantuchov?'s 24th birthday, Nicole Vaidi?ov?'s 18th bi…
... It is long overdue to return to the art and craft of ... font]
[49] "The Return of the Brothers Grimm": I ... to laterally invert the toilet-run.
[/list]
Hence the BASIC ... loader no longer applies the post-edits to "tsaE ...WANTED - Return to Ithaca AdventureI have been contacted by the son of the author of this program - does anyone have an original I could pass onto the son? It was published by Atlanti…
... Software - I have pointed him to the download on the archive ...How to convert hex bytes to .. in assembly?I hadn't a clue what to put in the title so..., I have in memory 3 hex bytes #10 #34 #50, e.g.,[code][size=2]#6400 10 , 34 , 50 ; hex 25600 16 , 52 …
... hadn't a clue what to put in the title so ... [/code][/size]I need to convert this to decimal 10 34 50 ...I/O on the Speccy - ideas/help wanted!I'd like an interface for the Spectrum that can control and monitor other items. I have a task in mind that would require: A: 4xbinary inputs (as in…
... like to have control using the IN and OUT commands in BASIC ... .
In more detail, I want to be able to ... each. I want to use four micro switches to act as stop ... to provide a positional reference to the assembly driven by the motors attached to ...Myth II - Return to HellHello all. A new game has been released... a sequel to one of the best ZX games ever. It is of russian make (I THINK) but I think you can get around…
... has been released... a sequel to one of the best ZX ... -2.zip[/url]
To start, choose Pentagon 128, then ... in the menu go to 48k Mode and write RANDOMIZE ... menu appears use Shift + arrows to navigate and run MYTH2.B ...
