-
Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…
Trust me not as I'm not that techy, but I think the +2A and +3 can't use the floating bus trick to know if the ULA is drawing the border or not. That's what made many games such as Arkanoid not work with those models. -
Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…
na_th_an is entirely correct: the +2A/+3 do [i]not[/i] have the floating bus. -
What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…
... and the +2a is the floating bus, and more games than you ... -
What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…
... 't run because of the floating bus and that can be bodged ... games, cause if *fixes* the floating bus, which is only there because ... -
What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…
... games, cause if *fixes* the floating bus, which is only there because ... read from the video data bus, by means of three-state ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... have recently read that the floating bus fix means that a DivIDE ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... have recently read that the floating bus fix means that a DivIDE ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... have recently read that the floating bus fix means that a DivIDE ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... been modified to fix the floating bus bug (not by me, previous ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... ) the +2B sound mod, the floating bus mod, the joystick port mod ... , and the expansion bus mod.
You'll ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... ) the +2B sound mod, the floating bus mod, the joystick port mod ... , and the expansion bus mod.
You'll ... a DivIDE+ (possibly because the floating bus mod has been done) would ... problem? What's the expansion bus mod? Also, are there any ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... a DivIDE+ (possibly because the floating bus mod has been done) would ... +3 edge connector. The expansion bus mod restores the ROMCS line ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... with games that read the floating bus, and hardware that requires ROMCS ... on the expansion bus. Using a pair of Spectrum ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... , the spectrum SE roms, the floating bus mod is done just need ... to sort the expansion bus and I'll almost have ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... (ZX ignore reading and return floating bus). Ports acceleration can be also ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... (ZX ignore reading and return floating bus). Ports acceleration can be also ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... again!) to see if the floating bus mod had been done, it ... -
The Ultimate Spectrum, made from old spectrumsGiven that all types of the Spectrum are less than ideal in one respect or another, I wondered what the ulimate refinement would be, but just using o…
... again!) to see if the floating bus mod had been done, it ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... version, including multi-colour support, floating bus and emulation of all Spectrum ... -
Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…
... of software that use the floating bus either :p -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
...
LDIR? failed (0x05)
Floating bus? failed (0xff)
Contended memory ... /> Contended IN? failed (0xfe)
Floating bus? skipped (B=0x01)
Contended ... /> Contended IN? failed (0x03)
Floating bus? failed (0x00)
Contended memory ... -
Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …
... of reads on unattached ports (floating bus/not)
[/LIST]
[*]We ... -
Kempston mouseOriginal 3 button one in working condition. If you are willing to sell me a one, please contact me. Thanks.
... button port are unusable, return floating bus values (FF or different screen ... -
Emulating the 128KeIt occurs to me that I wasn't frequenting WoSf when I created the 128Ke standard, which means some people haven't heard of it. Here it is: [url]http…
... ]
+2A timings
Floating bus support (needed for things like ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... compatibility bugs, such as the floating bus, which Amstrad naively "fixed" for ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... =Encarnado;538579]Wasn't the bus buffers replaced by resistors like ... usually used for reading the floating bus was used for controlling the ... machines didn't support the floating bus either.
[quote]Adding ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... machines didn't support the floating bus either.[/QUOTE]
Weird ... believe those games used the floating bus.
[QUOTE=aowen;538599 ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... believe those games used the floating bus.[/quote]
They must ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
[i]>sometimes 255, 255, sometimes 255, 56 and sometimes 56,255[/i]
it's [url=http://scratchpad.wikia.com/wiki/Floating_bus]floating bus[/url] issue. -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... ://scratchpad.wikia.com/wiki/Floating_bus]floating bus[/url] issue.[/QUOTE]
