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TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…
... you need to write some routine which you can query about ... of course you need proper pause to get the last pulse ... who wrote his own save routine knows that). But it is ... -
Autorun BASIC programsIs it possible to write a basic program which will autorun after typing in LOAD ""? Thanks
... -from-memory loader M/C routine which would LOAD the BASIC ... called a little M/C routine that loaded the header's ... de cabeceras PRESS A KEY":PAUSE 0
40 CLS :RESTORE ... , 5 [/B]thus making the routine 1 byte shorter. -
PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
... />
- the fact that the pause consists of two pulses just ... files, even when custom saving routine is used.
... emulate some noise during the pause duration (RealSpectrum does this), ... control other aspects of the pause like this noise or ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... graphic store
loadloop ;routine to write graphic into screen ...
halt ;halt when all rows is completed
restoreh ;routine for ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... graphic store
loadloop ;routine to write graphic into screen ...
halt ;halt when all rows is completed
restoreh ;routine for ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... /> And the HALT instruction, for how long does it pause the cpu? -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... /> And the HALT instruction, for how long does it pause the cpu ... -
Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…
... a quick test, and the routine above seems to work ok ... ... means it's easy to pause for a scanline. I wish ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... /> I'm not sure how "PAUSE n" works, but I doubt ... sure it just executes a "halt" n times. -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... ]The period of the PAUSE is determined by counting the ... second.
A PAUSE is finished either after ... /> [CODE]
[B]PAUSE[/B] CALL 1E99,FIND-INT2 ... br /> [B]PAUSE-1[/B] HALT Wait for a maskable ... br /> The period of the PAUSE has now finished.
< ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... performing the sprite clear/redraw routine and change it again AFTER ... HALT to wait for a TV vertical retrace, get the interrupt routine ... than a generic CALL scr_down_line routine etc. Move sprites can be ... able to skip the undraw routine and eliminate flicker -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... {
scroll_message();
#asm
halt
#endasm
} while (!in_Inkey ... where exactly to put the halt statement and how to get ... a little on sending the routine signals like starting and stopping ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... exactly to put the halt statement and how to ... at address 0xd4d4 (interrupt service routine entry)
wpoke(0xd1d2, ... () is running in the interrupt routine
[/code]
routine scroll_isr().
... -
68000 programming.Anyone here know anything about this? My question is: how does the programmer know how long hisinstructions are? Do determine the operands to branch …
... which starts at 1000. This routine does this:
[code]< ... 0000
0004 7402 hlt ;halt processor.
0005
... #9,D0
TRAP #15 Halt Simulator
END START ... of a mistake in the routine for handling indirect addressing. Can ... -
Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …
... de cabeceras PRESS A KEY":PAUSE 0
40 CLS :RESTORE ... block's size. The MC routine (in the DATA line) was ... -
He's back......and he's got a new trick! AY Chip here. I've been away far too long. I would like to announce 'HatStand': for no adequately explored reason, I h…
... Sinclair Research Ltd"
20 PAUSE 0
There ... code:
DI
HALT -
Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... the cassette inlay. Unlike "PAUSE 0", this routine also accepts caps-shift ... /> 63937 - perhaps a horizontal scrolling routine (crashes if not initialised)
routine -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... with is the "music playing" routine.
I used the ... is used for a short pause.
This gives 5 ... -
Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…
... in the foreground, using the HALT instruction, like this month's ... works:-
The chip music routine when run in the foreground ... /> Any simple IM 2 interrupt routine I write myself (like manipulating ... to BASIC succesfully if the routine has been run without ... -
MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…
... port.
ei
halt ;wait for interrupt (for correct ...
atfer return this routine:
- set flag NZ ... -
2 Spectrums (synched) playing AY tunes?After listening to a few Turbo Sound FM MP3s, I wondered... For those of us who can't build this card, couldn't we synch 2 128Ks and play these tunes…
... you used a custom-made routine, not the one that would ... , :usr, 0xc000],
40 => [:pause, 1, ':', :randomize, :usr, 0xc006, ':', :goto ... -
How do you make AY sound?Are there tools? Or is it all done in assembler? Any tutorials around for people who like things explained in simple terms? Ta!
... tapefiles and call the player routine once every interrupt to play ... the required machine code (using HALT) that you could you use ... to use an IM2 interrupt routine eventually so that you can ... -
RZX Player interface - Possible?If I have a Mass Storage interface and some media (CF, SD) with a couple RZX files, what would I need to play them on a real Spectrum? If the RZX fil…
... combination when (if) the interrupt routine is run so that the ... doesn't do its interrupt routine. Then when the RZX recording ... the data following the interrupt routine for the current frame and ... same time, but you can pause the z80 (with wait states ... -
'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... out of whack on this routine I briefly wrote - but it ... /> ; wait until next frame
halt
; Restore bit 3 ... /> ; wait until next frame
halt
; Check for 'q ... -
'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... my slow decimal to binary routine - this routine is illustrative, but could ... 4
200 PAUSE 0: GO SUB scr2: PAUSE 0: GO SUB ... -
'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... 300
200 PAUSE 0: POKE syspage,23: PAUSE 0: POKE syspage ... be that the interrupt service routine reads the system variable at ... -
'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... be that the interrupt servoce routine reads the system variable at ... />
I usually add a PAUSE 1 after the POKE to ... 'd almost certainly need the PAUSE if you were going to ... -
In-game music takes CPU time?If a 128k wants to have music played in-game using the AY sound chip, does that consume a lot of CPU time? What I am after is if the reason why man…
... of my games using a HALT at the end of each ... handled inside the interrupt service routine or simply part of a ... speed is controlled by a HALT instruction is academic. -
BASin r14c - maintenance releaseAfter the recent discussions, BASin has been released as version 14c. It's only a maintenance release, and some of the really big new features are un…
... a BASIC breakpoint or pause. You can now halt on a BASIC ...
