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Z80 based computersHelp needed: Who can tell which computers besides ZX81/ZX80/Jupiter Ace/SAM Coupe: 1) use a Z80 processor 2) what the programmable RAM-size is (and…
... 13:31, aowen wrote:
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On 2006-02-24 ... the keyboard is read
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You're going ... aren't you!
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No,
other ... only need to alter 100 RST calls) -
What do you think.Do you think if you went back in time and made a Sudoku game for the spectrum you would be a millionaire now? (all my get rich quick schemes invole …
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On 2006-02-24 ... :
I would use 1 RST for jump to own routine ... a RST for a call to my own software.
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Z80 based computersHelp needed: Who can tell which computers besides ZX81/ZX80/Jupiter Ace/SAM Coupe: 1) use a Z80 processor 2) what the programmable RAM-size is (and…
[quote]
On 2006-02-24 ... need to alter 100 RST calls)
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I presume you ...Wo ist Pippi?anyone (hochstwahrscheinlich von Deutschland) has mp3/wav or any hearable audio format of [B][I]Wo ist Pippi[/I]?[/B] song? can´t find it on dc+…
[QUOTE=wilsonsamm]
L?sning? ... , have I made any mistakes?[/QUOTE]
Rostig? K?ra ... ?r det inte. Du f?rst?r v?l svenska.
MAME on the Spectrum?Yes, I know it's currently AY's job to make ludicrous posts (a position he's filling in very well, until TKRAP returns), but just out of interest, if…
[QUOTE=obo]I don't know ... them all :-)
Si[/QUOTE]
First I run ... will be replaced by a RST.
In the 'ROM' the ... RST will read the original value ...Z80 vs. 8080.[QUOTE=obo]... because 8080 is pretty much just a cut down Z80.[/QUOTE] Really? So what's been cut, and why? Hang on, didn't the 808 evolve from the…
... program run on a Z80?[/QUOTE]
For the most part ... 's no hardware supplying RST 8 and RST 16 instructions on the ...Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…
[QUOTE=Dunny]I'd say that' ... its tokenised nature.
D.[/QUOTE]
Even if using ... , command interpreting etc. Print via RST 16 is one of rare ...Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…
[QUOTE=FrankT]I`ve worked out ... udg`s using RST 16 but they`re static. [/QUOTE]
You can't use RST 16 - it ...ZX OS'es: really useful? eg. ZX Spectrum OS, "Doors" by Aqua[url]http://www.snakeoillabs.com/2005/10/30/8-bit-guis-eye-candys-not-just-for-the-32-bit/[/url] I know bunch of OSes around like those, are those O…
[QUOTE=Matt_B]The main problem with ... Piters is driving at here.[/QUOTE]
Nah, you can ... services from the kernel via RST or CALLs to 0x66 (you ...TS2068 - SPECTRUM 48k Compatible Games ListHey guys... Follows the list. These are just the games I tested, there is still a long way ahead... As soon as more games are tested, their names w…
[QUOTE=aowen]I think there might ... to be a long list.[/QUOTE]
So far he ... the ROM directly, aside from RST#10 for quick and dirty ...Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... BASIC interpreter for it :-)
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Great! I was ... in new designs.
[QUOTE=Winston]
In honour of ... putchar and displaying errors.
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The better way ... for the error handling rst is to do the same ...Small C on Sam help neededI'm trying to make good on some of my old developments that fell by the wayside and one of them uses Small C. The reason I stopped was down to not h…
... make the manual:
[QUOTE]
Memory Sharing
RST 16 and jump table vectors ... run at address 32768.
[/QUOTE]Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... for ZXSpin assembler directives!
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Some common ... br /> push hl
rst #10
pop hl
[/code]
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bootloader- which requires me ... to share their experiences?
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The ...Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…
[QUOTE=glancaster;168662]Was there ever ... appear to use the standard RST 10 for character output, but ... the Picturesque one, or Devpac.[/QUOTE]
Not sure but ...Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …
[QUOTE=Dr BEEP;175321]It uses ... EXX and EX AF,AF'[/QUOTE]
Nice approach, particularly the ... , I thought you were using RST patches on special cases, with ...Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …
[QUOTE=obo;175351]Nice approach, particularly ... , I thought you were using RST patches on special cases, with ... your approach. :-)
Si[/QUOTE]
I used this ... . If I would patch with RST I must use an Eprom ...Disassemblers and RSTsI think this is a longshot, but... is anybody aware of a disassembler that handles the Interface One RSTs? e.g. RST $10 DEFW $0020. Cheers
[QUOTE=jp;184298]I think this ... One RSTs? e.g. RST $10 DEFW $0020.[/QUOTE]
If ...+2b not working with interface1i was trying to transfer some of my programs from my microdrive carts onto tapes last night, but found both my 48k and my toast rack 128K have decide…
[QUOTE=madvanman;189682]im going to ... and see if that works.[/QUOTE]
This will 100 ... are handled there. If via RST #08 in 48k ROM, it ...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…
[QUOTE=Rickard;193185]I am a ... ROM or RST instructions in my own code.)
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I suspect that the ... in the ROM code?
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Hardware cannot do ...question about RST 10hhow do you set the position of the text when using 'RST 10h' to print to screen?
[QUOTE=icabod;193270]Isn't 22 the code for AT?[/QUOTE]
I assume it is quite reasonable that the first number to be sent into the RST call is something to tell the system that the coordinates is on their way, so it is perhaps that simple! :-)question about RST 10hhow do you set the position of the text when using 'RST 10h' to print to screen?
[QUOTE=Rickard;193271]I assume it ... to be sent into the RST call is something to tell ... perhaps that simple! :-)[/QUOTE]
No, RST$10 will just use ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…
[QUOTE=gcallard;202382]
Apart from ... ? I'm curious about that.[/QUOTE]
Eww. WMV.
RST #38. Therefore it'll just ... execute RST #38 instructions, and the stripes ...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…
[QUOTE=dm_boozefreek;207985]There really would ... the first place though :D[/QUOTE]
Funnily enough, I ... the interrupt should trigger a RST 38h, and not one of ...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…
... ;207999]Complicated.[/QUOTE]
I agree - where ... currently just always does a RST 38h, because that's what ...Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…
[quote=Winston;209893]Incidentally, because ... way. 0xFF is the RST 38 instruction, so lacking ... altogether, the CPU just executes RST 38 instructions. The vertical ... ends up overwriting screen memory.[/quote]
If anyone ... which itself holds an RST 38!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…
[QUOTE=Where's that AY chip ... the interrupt should trigger a RST 38h, and not one of ... ? Where is that info stored?[/QUOTE]
OK, you need ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
[QUOTE=csmith;215527]From a software ... ' in order to get stuck?[/QUOTE]
Bah, there are ... code path usually ends with rst 0 which is executed only ...A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…
... off the edge connector traps RST #8. For instance, the ... only one device can handle RST #8, surely the ... to trap something other than RST#8. (Does the ... hardware jumper that disables RST#8 traps and instead ... ROMs can peacefully co-exist?[/quote]
you ...A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…
[QUOTE=Winston;221142]Does the DivIDE ... instead of trapping PC=0x0008?[/QUOTE]
To give you ... .txt[/url] - these cover RST 0, RST 8, interrupts (maskable and NMI ...
