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New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
This is what I've compiled so far:
[quote]Resources
=========
* Make all caps
---------------
You can turn CAPS LOCK on or off using a simple poke to 23658:
POKE 23658,8: REM CAPS ON
... -
Map to screen address problemCan anyone help me out with what I guess is a screen address calculation problem. I need to calculate the screen address of a tile based on a number…
... start of the table (with interrupts disabled of course) and POP ... -
Push/Pop methodMachine code question: Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another? I've heard it i…
Yes,
disable interrupts first.
Then point ... -
Push/Pop methodMachine code question: Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another? I've heard it i…
... :
Yes,
disable interrupts first.
Then point ... -
Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... 's when it comes to interrupts as I recall MOS's ... -
FrameSyncIt was many many years ago since i programmed assembly on the spectrum but I just picked it up again for fun. Now this is one thing I can't remember…
You mean something like the [url="http://www.worldofspectrum.org/faq/reference/z80reference.htm#Interrupts"]FAQ[/url]? -
FrameSyncIt was many many years ago since i programmed assembly on the spectrum but I just picked it up again for fun. Now this is one thing I can't remember…
... I made did not disable interrupts. When running in uncontested memory ... to be had by disabling interrupts. Also, using Halt to sync ... -
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... every ram page.
Interrupts too you have to be ... -
Ninja ?bug?Doing rzx of ?Ninja? but can?t finish it because to open the last secret room you need [B]six[/B] idols to be collected. They are scattered in the …
... it's to do with interrupts becoming incorrectly enabled at ill ... -
Atari STSaw one recently at a used scrap dealer, but didnt buy it seeing as it dosent have my particular interrest. I could probably bargain for it for only …
... to resort to timing or interrupts. It was all done automagically ... -
length of 48k .sna fileJust a quickie :) Is the length of a 48k .sna 49152 or 49153, i.e. does it go from 0 to 49152, or from 1 to 49152? (If that makes any sense?) Cheer…
what does the instruction im do?me again with more questions sorry :D finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warn…
... on to explain IM 2 interrupts in an article in the ...what does the instruction im do?me again with more questions sorry :D finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warn…
... on to explain IM 2 interrupts in an article in the ...what does the instruction im do?me again with more questions sorry :D finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warn…
[url="http://www.worldofspectrum.org/faq/reference/z80reference.htm#Interrupts"]http://www.worldofspectrum.org/faq/reference/z80reference.htm#Interrupts[/url]what does the instruction im do?me again with more questions sorry :D finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warn…
... .org/faq/reference/z80reference.htm#Interrupts"]http://www.worldofspectrum.org/faq ... /reference/z80reference.htm#Interrupts[/url]
[/quote]
ANN: midi2ay 0.1Well, here's the MIDI-to-AY converter I promised. I've named it "midi2ay" (original name eh?) [url="http://es.geocities.com/qllaria/midi2ay/midi2ay-…
... something going on with the interrupts there that needs to be ...Beginner InfoI have trying to find some hardware information for use with assembly coding but havn't had much luck. For instance. How do I redirect the vertical …
... information about setting up the interrupts (as a hint, you'll ...Beginner InfoI have trying to find some hardware information for use with assembly coding but havn't had much luck. For instance. How do I redirect the vertical …
... will be when the ULA interrupts. So, to deal with this ... with embedded systems or even interrupts on modern PCs, this is ...128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…
... /> When memory is being paged, interrupts should be disabled and the ...Assistance with IM2 routineI subsequently got a working IM2 routine.
... question:
Are the interrupts enabled inside the routine?
interrupts (or call a routine which ...Assistance with IM2 routineI subsequently got a working IM2 routine.
... Basic's interrupt routine reenables interrupts and there is a small ...Assistance with IM2 routineI subsequently got a working IM2 routine.
... I'll have to disable interrupts when I page in anything ...Unpublished spectrum gameHi there I have a Spectrum PDS development environment and before I get rid of my old PC which has an ISA slot I thought I should ask this question i…
... can be and disable the interrupts (DI) and choose Save Snapshot ...Determining 50hz/60hz in softwareHow can you determine in software if you are running at 50hz or 60hz?
... perform some loops between 2 interrupts, and count it. Result will ... time between 2 V-Blanks (interrupts). Longer time - 50 Hz, shorter ...MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …
... [/url]
Check out the IM0 note, you may want to ...MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …
... or zx.info), then in IM0 mode interrupt length is 12 ...MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …
... [/url]
Check out the IM0 note, you may want to ... write a test to check IM0 on real machine. I'll ...MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …
... write a test to check IM0 on real machine. I'll ...Take this job and shove itI've given up trying, as a ducker and diver, I do fine. Got a nice little part-time job with the Royal Mail for the last 4 years, do okay buying and …
... ...at this point the guy interrupts to say "I don't ...ZXCF InterfaceI'm just trying to get an idea for the ZXCF interface, and to me, it looks a much cleaner design compared to divIDE (Of course, that's just my opinio…
... by allowing generation of line interrupts as well (INT at end ...
