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COVOX works?My Sprinter "simulates" a COVOX soundcard at port 4Fh, but I don't know how to use it! Can anyone explain to me the process of programming it? (To be…
... they've taken a fixed length of time, sliced it up ... -
The Slicker PuzzleDid anyone ever complete this - if so what was the final message at the end? (It's a long shot, I know)
(sorry for the length of time responding to this)
I mainly use spectaculator and occasionally RealSpectrum. -
Overhauling my games room this weekend.Started just now, I bought a second hand bookcase for ?10. The guy in the second hand bookshop was a bit suprised when I told him that it was for vid…
... to go to the extreme length of divorcing to spread her ... -
Overhauling my games room this weekend.Started just now, I bought a second hand bookcase for ?10. The guy in the second hand bookshop was a bit suprised when I told him that it was for vid…
... to go to the extreme length of divorcing to spread her ... -
Lightgun QuestionsHi all, how is summer going? I have a question about the Sinclair lightguns. You know those black ones. I have tried them on +2 attached with a MB0…
The distances I have tried varies according to the length of the cable. I will try later again to see if the problem has to do with the distance. -
Street Fighter 2 .TAPHelp! I'm useless, I know! I am trying to get Street fighter 2 converted from my original to .TAP format but am getting absolutly nowhere fast. This…
Thanks Sadako
I will try that - it is one HUGE tape though, at least 45mins in total tape length! I have diamond cut so I should be able to get a nice clean WAV of it.
Fingers crosse -
Z80 processor question...Suppose we fill the entire $0000-$ffff memory range with $ed. What will the processor do ? I suppose it will get locked, but will it still respond to…
... the second as an alternative opcode type. The second EDh byte ... -
MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program
... , allowing for a loop for length, and
;instructions of pitch ... 23760
ld b,32 ; Length (No of repeats)
start ... -
Z80 processor question...Suppose we fill the entire $0000-$ffff memory range with $ed. What will the processor do ? I suppose it will get locked, but will it still respond to…
... EI opcodes until after the opcode following the final EI. -
Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…
... the unofficial versions of the opcode.
[quote]
My ... -
Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…
... feature IO(x) in the "opcode broken into machine cycles" list ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... /> Internally, the Z80 divides every opcode into M-cycles; each M ... /> * M1: 4 tstates: read the opcode (0x34).
* M2: 4 tstates ... bus value (0xff), coincidentally the opcode for RST 38, so the ... data bus means a random opcode could be executed, which makes ... -
Z80 core testing ?OK, my z80 core is almost finished (apart from RRD, RLD, and block instructions except LDI,LDIR,LDD,LDDR). I run the 48K rom and hurray, it resets co…
... one test for every Z80 opcode. You'll need to write ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... IM 0 depend on which opcode is executed; if there is ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... T states: 5 for an opcode fetch, 3 for pushing PC ... />
But there is no opcode fetch performed in an interrupt ... memory so the 5-cycle opcode fetch is out. You can ... peripheral supplies the "RST n" opcode. This is followed by the ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... 2 because placing an instruction opcode on the bus is a ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... because placing an instruction opcode on the bus is ... understood to mean an opcode fetch cycle (called that ... M1 goes low when an opcode fetch cycle happens). But ... n" has 5 cycles of opcode fetch (OCF) from memory ... time the "RST n" opcode is supplied by the ... -
When is a new Spectaculator 6.3 or 7 comming?Hello! I'm a glad buyer of Spectaculator. :) I'm woundering what's the future with Spectaculator. Would be nice to see a devlog or a forum for Spe…
maketzx problemsDoes anyone else have problems running maketzx v2.33 (with or without the GUI) on Windows 2000 Sp4? I've just changed my OS from Win Me where i've m…
... for BASIC blocks the block length, autoline number and the number ... $ blocks, the start address and length.
If I'm ...4 Computer Buffs data transmissions on TVAnyone else remember these? They were transmitted after closedown to tie in with the 4 Computer Buffs TV programme on channel 4 back in the 80s. The …
... .tzx is to preserve the length of all the pauses in ...Any portuguese in this forumHi my friends. Anyone in this forum is Portuguese? I?m interested to know if in this forum there are more Portugueses besides myself. :) J
Check the length of the posts from the above people for a clue.....
[ This Message was edited by: dave_beer_uk on 2004-08-28 02:11 ]Any portuguese in this forumHi my friends. Anyone in this forum is Portuguese? I?m interested to know if in this forum there are more Portugueses besides myself. :) J
... , dave_beer_uk wrote:
Check the length of the posts from the ...Any portuguese in this forumHi my friends. Anyone in this forum is Portuguese? I?m interested to know if in this forum there are more Portugueses besides myself. :) J
... , dave_beer_uk wrote:
Check the length of the posts from the ...This month's Retro Gamer - Cascade 50 honouredWell, after what seems like no end of Cascade Cassette 50 talk this month at WOS ("50 [I]great[/I] games on one [I]great[/I] cassette"), Retro Gamer …
... to have been edited for length, though it is still a ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... of loop that takes an opcode per loop and executes it ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... of loop that takes an opcode per loop and executes it ... one for every non-NOP opcode. Each test contains the state ... Z80 before and after the opcode; by seeing where your code ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... code that can take an opcode (whether as an integer, string ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
[quote]A region of memory, 65536 bytes in length, to use as spectrum memory. You need to copy the 48k ROM file into the bottom 16k of that.[/quote]
How do you copy 48K of information into 16K of space?
MadDoc,I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... frequency - and handily enough, each opcode takes a number of T ...