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ANN: Shadow of the Unicorn SEShadow of the Unicorn SE is no longer being distributed.
... speed since more pages are contended but anyway it is a ... -
MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?
... that below 32768 memory is contended, meaning that access to it ... -
fzx32 on GP32 progressing nicelyJust to let you know that Rlyeh is working hard on his ZX Spectrum emulator fZX32 for the GP32 and should be released in the near future. Its based…
... frameskip 0 @ 133 mhz with contended memory and sound emulation,
- Preliminary contended memory emulation (multicolor effects),
DEC BC/LD A,B/OR C/JP NZ,loopyesterday i saw nice trick:[code] dec bc ld a, b or c jp nz, loop can be replaced (bc starts >255, short jump) by: dec bc inc b djnz loop [/code] …
Saves only 1 cycle when the branch is taken though. Also it would be far slower if the code was in contended memory.128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
... two banks of RAM, one contended, the other uncontended (0-3 ...128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
... two banks of RAM, one contended, the other uncontended (0-3 ... , 3, 5 and 7 are contended and pages 0, 2, 4 ...128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
... , 3, 5 and 7 are contended and pages 0, 2, 4 ...InterruptsCan someone help with providing some info or a link about IM 2. I know I need to create a vector table and want to store this as high in memory as po…
... if the table is in contended memory, some Spectrum models will ...Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... tell you which cycles are contended:
[url="http://homepage.ntlworld ...Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... and it reckons the first contended cycle is 8479. Does the ...Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... the Timex machines have different contended memory areas? I need to ... needs to be in non-contended memory when it runs.
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... the Timex machines have different contended memory areas? I need to ... needs to be in non-contended memory when it runs.
contended, by the looks of it ... know if the number of contended cycles varies at all.
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... /> His results were,
"Contended at 14361
then ...
14363 to 14369 contended
14370 uncontended
14371 ... to 14377 contended
14378 uncontended
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
I get everything contended in the default range on my +2A. The other program gives 32.Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
Is cycle 14489 contended on a +2A?Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... see if cycle 14489 is contended on a +2A then that ... emulator POV it's simply contended on cycle 14361, then 16x ...Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
[quote]
On 2005-03-19 21:43, Woody wrote:
Is cycle 14489 contended on a +2A?
[/quote]
Yes.
Jon.Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... wrote:
Is cycle 14489 contended on a +2A?
[/quote ... had to be the final contended cycle for the first scanline ...How many T-states takes PUSH DE ?Hi. Just a quick one. According to z80.info docs, a PUSH DE should take 11 T-States to be executed. But WHAT if SP is pointing to Contended Memory,…
ORG? Mm?What is ZXSpin compaining about when I haven't defined an ORG? I understand it's some sort of address where the code will be stored. If this is the …
... using for anywhere else. Outside contended RAM is probably a good ...ORG? Mm?What is ZXSpin compaining about when I haven't defined an ORG? I understand it's some sort of address where the code will be stored. If this is the …
Org 32768 would place your code in the top 32k (away from contended memory)Ghost Castles - Brand new game by WSSThe first 256K game which uses ROM paging technology on ZX-Spectrum 48K ! How ? It is a full 48K game with one special ROM which contains many part…
... ]Not all Spectrum clones have contended memory or I/O ports ...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…
... these phases of screen refresh contended memory can be accessed with ...Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... -brew machine, which has no contended memory. The SE is more ...Ideas for new tape storage formatSome called them decoders or encoders, but I think that it is just something like form of presentation. Goal is of course smaller size, support of e…
... C (Close) in field about contended mem. em., because later I ...Very first Speccy emulator?Which was the first? I mean here full emulator, not only Basic emu. I saw first Speccy emu. somewhere in 1991. Does anyone know something about Spe…
[quote]
On 2005-11-06 22:44, piters wrote:
Tom-Cat, I explicitly said: full emulator.
[/quote]
And none of the emulators mentioned have proper contended memory emulation. Please define "full emulator".Very first Speccy emulator?Which was the first? I mean here full emulator, not only Basic emu. I saw first Speccy emu. somewhere in 1991. Does anyone know something about Spe…
... the emulators mentioned have proper contended memory emulation. Please define "full ... those pioneer versions haven't contended memory emulation (it was not ...16K games.Hi all, Cauldwell's stuff aside, are there any good 16K games that you'd recommend? Regards, Shaun.
... that is available is in contended memory (shared with the ULA ...Spectrum Emulator for Windows XPHi all. I'm struggling to get any emulators to work with Windows XP. I'm just after an emulator with Joystick support. Any suggestions? Thanks
... produce an accurate description of contended memory. It was incomplete and ...Spectrum Emulator for Windows XPHi all. I'm struggling to get any emulators to work with Windows XP. I'm just after an emulator with Joystick support. Any suggestions? Thanks
... produce an accurate description of contended memory. It was incomplete and ...
