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Return to basic from sna created by Z80 compilerHow can I go back to basic when running sna created using Z80 Assembler ([url] http://www.worldofspectrum.org/utilities.html#crossass [/url])? For e…
Another idea is to see if your cross assembler ... include a BASIC loader to set RAMTOP and load the assembly code and ... the same issues when returning to BASIC.
Regards,
Derek ... -
Chuckie Egg 2 PokesOkay, so, I fancy a crack at Chuckie Egg 2 before FA Cup MotD comes on. Loaded it up, and tried the Multiface poke, but the one that crops up EVERYW…
... pressed a key and returned to BASIC.
Then ... in the basic program on screen, this started to save, ... pressed any key to get to the proper screen
Tried to get killed via croc, ... , inf lives work with no return to van.
< ... -
Is bank 7 usable at all?Can you assemble stuff and page bank 7 in and out? I've encountered nothing but problems so far, where does it page to? 49152?
... problems if you keep returning to BASIC, as that needs whatever ... memory the BASIC environment has set aside to be preserved. ... If you wrote just in assembly with ... only transfer the final program to the real spectrum, then ... -
Is bank 7 usable at all?Can you assemble stuff and page bank 7 in and out? I've encountered nothing but problems so far, where does it page to? 49152?
... problems if you keep returning to BASIC, as that needs whatever ... memory the BASIC environment has set aside to be preserved. ... If you wrote just in assembly with ...
That includes not returning to BASIC, not calling any routine (or ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... is callable from BASIC. If one assembles it to, say, 60000, ... /> org LOADER_FNUSR_ORG
;; uncomment to disable BREAK key detection
to black;
;; b/ return 0 to BASIC
ex af ... -
Who wants to play with my Willy?While cleaning up my PC a few weeks ago, I stumbled across an old Jet Set Willy mod I started back in the early 2000s. Although I don't quite have th…
... the playtest.The tribute room "Return to Sendy" (093 - technical room ... br /> - the black guardian in "Return to Sendy" (093);
- the ... loading screen and a custom BASIC loader would certainly add some ... I will be happy to playtest it to make sure that no ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... but you would presumably need to use assembly to bridge the two, as ... that there should be some basic effort to understand how parts of ... that people should have some basic concept of whatever the h ... are far too close to the process to understand quite how they ... -
Which games would you remake? Or like to see a mockup of?We all have a list of titles that we know or felt was not good enough or simply rushed to market without thought or effort. So which titles would you…
... CPC which was apparently the basic version in this production.
Maybe one day I'll return to this project. -
Basic SAVE and ZX Printer supportIs there a list of emulators that support any of these two features (basic SAVE and print to printer port)? Is there a emulator comparison some wh…
... a communication system to communicate between them to transmit information ... - you can't extract assembly listings from RAM in the ... to clarify the issue at hand:
I have assembly ... ZEUS relies on BASIC SAVE command to save assembly source into files.< ... -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... programs follow the Sinclair BASIC convention of PRINT ... he chose to think that the Sinclair BASIC convention is ... , "defb" is an assembly time instruction, not a ... once you're back to BASIC (without assembling again or ... t be going back to BASIC from a real game, ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
By the way, I forgot to mention that it was actually ... the +3/+2A, to go into 48K BASIC with the SPECTRUM command ... statements in your program, then return to 128K using the aforementioned "USR ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
... that tells PRINT when to print UDG T and ... U or expand it to SPECTROM and PLAY keywords.< ... to do a POKE 23611,204 and let the BASIC ... interpreter do the magic, instead of going and return to ... 48k mode every time you need to print ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
... the BASIC interpreter do the magic, instead of going and return to 48k ... mode every time you need to print something ... that you had to go to 48K BASIC in order to print the "T ... is only necessary to put them in your BASIC program. Once that ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
... and +2A users to go back to +3/+2A BASIC:
[code] ... +2, but it doesn't return to 128k BASIC mode.
This ... the documentation that when outing to memory mapper port 0x7ffd, when ... be disabled and further output to this port will be ignored ... -
Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... are back in spectrum 48K basic mode.
Press a few ... 4 OFF
Press ENTER to return to the title screen
basic program
10 PRINT AT ... machine.
Testing in basic first, Sinclair 1 + 2
Contact Sam Cruise - BugWhile playing through 'Contact Sam Cruise' yesterday I happened upon a bug when I was arrested, when I moved inside the jail cell the screen scrolled…
... "][quote="Nonsense in BASIC;840635"]I used to play this classic ... that's actually pretty hard to do consistently.
... to normal you need to walk right all the way to the end, to ... the scrolling and game will return to normal. It's useless because ...Flood FillHi Folks, Can anyone point me to a flood fill that I can call from ZX BASIC? I have looked through the archive and although there are posts about…
... that can be called from basic:
[code]
;; ... ,0
ret nc ; return zero to basic if ok
inc ... c ; otherwise return non-zero to indicate ...Help! I'm learning Machine Code...Having decided to take the plunge and learn to machine code a while ago, I have started in earnest using the much recommended 'Mastering Machine Code…
... it in BC before you return. It's a bit fiddly ... into BC, and on returning to BASIC, that value will appear as ... into a routine too. When BASIC calls machine code, the address ... 'initialise' function return the address in BC of where to POKE your ...Any noob friendly speccy dev tutorials?I mean, for a person who never used ANY kind of assembly, let alone Z80 one. Would be good if focused on making a game. Additionally, I want your …
... it made me curious enough to take a look, and ... I was surprised to find out how bad ... ROM is a terrible way to learn Assembly.
I ... about assembly first, then reading Cauldwell's How To. Or ... and learn to program in Boriel's ZX Basic or z88dk ...Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... CALL addfunc ; this pushes the RETurn onto the stack
LD ... to BASIC
addfunc
POP HL ; recall the RETurn ... /> PUSH HL ; put the RETurn address back on the stack ... br /> RET ; and then RETurn, POP the address off the ...Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... addfunc ; this pushes the RETurn address onto the stack
to BASIC
addfunc
POP HL ; recall the RETurn ... HL RETurn address
[/code]
(remember to bung ... POPped HL is the address to return to, so there is no ...Consolidating forum categoriesI posted this elsewhere, but it should probably go here: [quote="Rorthron;857978"]As an aside, can we consolidate the various topics on New WoS in…
... running order they'd like to see? [/quote]
... br /> DEVELOPMENT
- Sinclair BASIC
- Assembly and Other
- New Game ... list, so as not to distract from the more popular ... is also easy to find - just scroll straight to the end.< ...Consolidating forum categoriesI posted this elsewhere, but it should probably go here: [quote="Rorthron;857978"]As an aside, can we consolidate the various topics on New WoS in…
... running order they'd like to see? [/quote]
... br /> DEVELOPMENT
- Sinclair BASIC
- Assembly and Other
- New Game ... list, so as not to distract from the more popular ... is also easy to find - just scroll straight to the end.< ...Consolidating forum categoriesI posted this elsewhere, but it should probably go here: [quote="Rorthron;857978"]As an aside, can we consolidate the various topics on New WoS in…
... /> - Sinclair BASIC
- Assembly and Other[/quote]
Might be appropriate to use ...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…
... into RAM to run first, then return to Bank 0 to finish off ... does need the regular ROM to be present. It checks ... the ROM to test the version of the ... machine to do the colour timing. ... ROM could be copied to the BASIC area, and the screen ...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 ...Running out of fingers in AssemblyDear all, Still trying to learn Assembly and have put a few routines together. However, as my routines become a little more involved I find myself…
... br /> And a new assembly programmer should probably take the ... approach when first getting something to run. But it doesn ... Compared to BASIC, and particularly Sinclair BASIC, machine code is going to be ... as is learning how to deal with situations that require ...Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... you like a mix of BASIC & assembly..?
You launch ... assemble option, click back to the basic program and RUN it. ... (like pasmo) but failed miserably to get them up and working ... for applications that are simple to install/get going. Horses for ...
