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In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... do not use any ROM routine depending on IY? Or do ... , the standard ROM keyboard scan interrupt depends on IY. Do generated ... code disable this interrupt or set a different interrupt routine instead?
[/QUOTE ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... in which a fast printing routine is needed. Not for ... table and choose whatever printing routine best fits his needs
[code]
;INITIALIZE YOUR PRINTING ROUTINE, IF NEEDED IN THIS SECTION ... /> im 2 ;switch to our interrupt routine (which only do a push ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... would slightly speed up my routine too.
[ ... screen using my stack routine*, but using Hikarus it ... org 32768 ;slightly modified Hikaru routine
call setint
... ret
org 65021 ;simple interrupt routine
ei
ret
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... /> ret
org 65021 ;simple interrupt routine
ei
ret
routine I'd previously used to ...'Spectrum Play' ErrorI always wondered why the screen sometimes filled with 'SPECTRUM PLAY' if I loaded a 48k game in 128k mode (using my 128k+2B). Colditz Story in parti…
... need a m/code routine, either an interrupt routine to be continuously altering ... a short CHARS "wobble" routine, although the effect is only ... left. A display file "bounce" routine should be quite short, I ... to be run as an interrupt routine for it to be ...Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
[QUOTE=takapa;632878]Does the interrupt push the registers and the ... taken to handle the actual interrupt itself is almost certainly significantly ... the time spent in the interrupt routine. That's far more significant ...Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
... ]
Interrupt executes some code - interrupt routine.
The interrupt itself doesn ... ] you may use your own interrupt routine and you should preserve there ...Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
... taken to handle the actual interrupt itself is almost certainly significantly ... the time spent in the interrupt routine. That's far more significant ... routine's ability is insignificant next to the power of the Interrupt ...Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
... taken to handle the actual interrupt itself is almost certainly significantly ... the time spent in the interrupt routine. That's far more significant ... the start of the interupt routine is about the speed of ...Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…
... 't work. Even the following routine (copied from David Webb's ... to run the normal keyboard interrupt routine, doesn't work in BASin ...Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…
... . Is it possible for an interrupt routine to turn itself off and ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... finish that before letting the interrupt routine cut in. This introduces a ... to the start of the interrupt routine. If you control it yourself ... always used HALT before the interrupt occurs, you can still ... />
But with a routine like this, you should be ...RET MHello. I?ve seen in the Joffa game SAUCER a kind of loop like this LOOP LD A,R RET M JR LOOP I do know what this loop mea…
... is being set in the interrupt routine. This loop will keep going ... until an interrupt has occurred. It's preferable ...Sending key presses to the spectrumfor a project I want to send automated keyboard presses to the ZX via a micro-controller. Is it possible to send these through the expansion slot? …
... decoder will go to an interrupt pin on your microcontroller.
interrupt routine will start running (well, not ... latency)
In this interrupt routine you will have to find ... run a loop reading the interrupt pin. While it is ...Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... do with how much time interrupt routine takes or maybe opposite, how ... normal execution (without time of interrupt routine) between two interrupts takes. when ...WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …
... in the ROM's keyboard interrupt routine. Jumping to the RET at ... straight into a machine code routine).Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... /zx-comp/zx8606.zip]Keypad Interrupt Routine[/url]
[url=http://www ...recovering the stack after an errorMy normal error handler starts with the stack as reset by LD SP,(ERR_SP) in $0053 ERROR_2, sets up some stuff and returns to BASIC via a "JP C,$1e73 …
... />
Disabling interrupts in the routine itself is too late, as ... time it got to my routine in the middle interrupts were ... the normal error exit), my routine executes the given actions, stacks ... several PUSHes in the maskable interrupt routine).recovering the stack after an errorMy normal error handler starts with the stack as reset by LD SP,(ERR_SP) in $0053 ERROR_2, sets up some stuff and returns to BASIC via a "JP C,$1e73 …
... them. Even a "do nothing" interrupt can cause a problem, as ... IM2 and setting up an interrupt routine which just did a RET ... enabled again, and eventually an interrupt call pushes a return address ...High Score ASCII array reset ?Hey guys, Noob alert! I'm working on my first game and I'm having problems with the high score on the second time through the game loop. My high …
... actually reset? Is the print routine printing the same string?
interrupt routine (assuming you have written one ...High Score ASCII array reset ?Hey guys, Noob alert! I'm working on my first game and I'm having problems with the high score on the second time through the game loop. My high …
You're right I don't have an interrupt routine. I don't even know what one is!RET MHello. I?ve seen in the Joffa game SAUCER a kind of loop like this LOOP LD A,R RET M JR LOOP I do know what this loop mea…
... HALT:
1-My interrupt routine goes: PUSH AF, LD A ... />
Is this R register routine the same but just toggling ...Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... recently I found the ROM interrupt routine overwriting data that IY was ... 't be reinstating the RST10 routine in my project unless I ... newer direct screen memory write routine is faster. But at least ...Bomb Jack Spectrum 128k music?I could swear I once listened to a menu music track on the Spectrum 128k version of Bomb Jack, but I'm unable to find that tune again. All the Bomb J…
... you want. Drop your own interrupt routine in place of the one ... own, then continue with program interrupt routine. [url=http://homepage.ntlworld.com ...Video generation using a CPUWe know it is possible to generate a video signal using a CPU, and this technique was often used on low-end computers in the early 1980's (for exampl…
... hardcoded the value in the interrupt routine.RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…
... thread, or unless a different interrupt routine has been loaded, the + ... disk motor timeout routine as part of the interrupt procedure.
... copied back whenever a DOS routine is going to be called ... of the game's IM2 routine shifting stuff around - including ...Treasure Island Dizzy 128k +2a modeHi all! I have a original black spectrum 128k +2a computer in my collection and quite a few games and im a big big fan of codemasters and the Dizzy …
... curious as to why the interrupt routine wasn't restoring the correct ... 's no way for the interrupt routine to know what the correct ...Under development: CattivikHey there I started making a new game "Cattivik" based on the cartoon character invented by Italian cartoonist Bonvi [url]http://www.youtube.com/wa…
... of memory for a custom interrupt routine to play AY music, which ...Under development: CattivikHey there I started making a new game "Cattivik" based on the cartoon character invented by Italian cartoonist Bonvi [url]http://www.youtube.com/wa…
... of memory for a custom interrupt routine to play AY music, which ...
