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Strange and faulty toastrackI just got hold of a toastrack, which is kind of strange. First of all, when I opened it, I spotted a socketed ULA and ROM, which is good, however, t…
... it, I spotted a socketed ULA and ROM, which is good ... see the contours of the 128 boot menu, but B/W ... -
Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... is placed high (causing the ULA bug with the game crashing ... 48k music instead of the 128 AY one...
Should these ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... select preconfigured machine config (48/128/pentagon/scorpion/profi/atm1/atm2 ... /> Also it allows to change ULA device on the fly, without ... can see demo with different ULA's with no need to ... -
SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... McLeod_IdeaFix pulling off a ULA+ for the 128, and suspect, like Dunny ... -
Rainbow Chaos(I so want to call this Law of Chaos to pun on lords) Anyway. Dunno if I'll make this. But if I don't /someone/ will want to. It's just too good an …
... The two issues on the ULA 128s are that the ... no glitching. On the ULA 128s the number is ... of the time the ULA 128 version will just seem a ... benefit to doing a ULA 128 specific version as the ... from Velesoft with the ASIC 128 contention model (and no ... -
Modern printer with the ZX SpectrumJust curious: If for some reason I wanted to use a printer with my Spectrum, are there any modern printers that would work with it?
... or the ULA 128s. If you have an ASIC 128 then you ... -
Modern printer with the ZX SpectrumJust curious: If for some reason I wanted to use a printer with my Spectrum, are there any modern printers that would work with it?
... or the ULA 128s. If you have an ASIC 128 then you ... -
coding guruOk I'm looking for a to help me in my quest to do my first proper game. The 80's child in me thinks he can do it, But the 2013 man in me knows zip. …
... ]1 page will hold a 128*128 map or more if I ... 're running on a ULA 128 or an ASIC 128 (banks 1, 3 ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... /> sound_2:
ld bc, ay_128dat ; 128 data port
out (c ... ; toggle bit 4
out (ula), a ; write port
ld ... with carry
cp c ; -128 -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
...
.ifdef ROM1
out (ula), a ; set border color
cp 128 ; less than 0.5?
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... xor a ; black
out (ula), a ; set border
ld ... ; AY register for Timex and 128
ld a, 7 ; ... ; handle NEW 48
cp 128 ; 128?
jr z, new_128 ; ... handle NEW 128
rst error ; else
eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... Compare the temperature of your ULA without this line connected with ... of overheating of the ULA and damaging is a ... the output voltage from the ULA (as shown in the ... own SCART cable for the 128 (and in those I ... strain placed on the ULA by using CSYNC is avoided ...eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... concern of overheating of the ULA and damaging is a very ... the output voltage from the ULA (as shown in the charts ... own SCART cable for the 128 (and in those I used ...Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …
... the 2068 ULA (SCLD) was not used in the Spectrum 128 models ...Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …
... the 2068 ULA (SCLD) was not used in the Spectrum 128 models ... good news is that ULAplus 128 will rectify that situation when ...Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …
... good news is that ULAplus 128 will rectify that situation when ... Investronica knew of the new ULA, but chose not to use ...Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …
... Investronica knew of the new ULA, but chose not to use ... mode in the Pandora. The 128 was really Investronica's baby ...+2A/+3 composite modHi, Anyone has experience doing a composite output mod for +2A/+3? (yes.. I also have a working RGB) A while ago I did one based on the instruction…
... the RGB signal from the ULA (for 128 versions of the Speccy ...Homebrew ZX Spectrum kits for DIY builders !Hi. I'm considering selling Homebrew ZX Spectrum kits on ebay... hopefully at a low price ! They'd consist of : Z84C0020PEC Z80 CPU …
... enough to fit a Spectrum ULA. Chris Smith's reference implementation ... of the standard ULA only just squeezes into an ... ) and that Altera device is 128 macrocells.
If you ...Homebrew ZX Spectrum kits for DIY builders !Hi. I'm considering selling Homebrew ZX Spectrum kits on ebay... hopefully at a low price ! They'd consist of : Z84C0020PEC Z80 CPU …
... enough to fit a Spectrum ULA. Chris Smith's reference ... implementation of the standard ULA only just squeezes into an ... ) and that Altera device is 128 macrocells.
If ... br />
Originally I thought 128 Macrocells would be too low ...Which Emulator supports Betadisk48?Hi out there and happy new year, I'm looking for an emulator to run with my vision1.7 trdos-rom in 48 mode. Unfortunately most emus only support Bet…
... />
[code]
// In Beta 128 mode, the ROM is automatically ... yes, it's shared with ULA, so it affects it too ...Which Emulator supports Betadisk48?Hi out there and happy new year, I'm looking for an emulator to run with my vision1.7 trdos-rom in 48 mode. Unfortunately most emus only support Bet…
... a EPROM 16 Kbytes (27,128) containing the DOS.
ULA. The definition of the bits ... sector buffer.
Beta 128 uses *133 bytes of RAM ...Homebrew ZX Spectrum kits for DIY builders !Hi. I'm considering selling Homebrew ZX Spectrum kits on ebay... hopefully at a low price ! They'd consist of : Z84C0020PEC Z80 CPU …
... ;743420]
Originally I thought 128 Macrocells would be too low ... they'd squeezed the Spectrum ULA into just under 120 macrocells ... timing compatible with the original ULA? I suppose it depends on ... flash devices)
The ULA doesn't have any DRAM ...Why are multicolour engines only able to be made now?Now I'm no programmer, but, how come multicolour engines are only being created/designed now? I know there were Rainbow Graphics used in games in the…
... another graphics mods. The Commodore 128 apparently had lots of improvements ... the C64, but the Speccy 128 only had the extra memory ... />
A screen mode like ULA Plus would have been fantastic ...eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... lessen the load on the ULA. There will still be ... TR14 sits between the ULA and the composite video ... was before, because the 128 I bought it for ... with less load on the ULA - a good thing.
128 with an actual 2V ... shouldn't damage your 128 now. :)ULA pinsHi I am trying to figure out where on the ULA , among other things, the VYU pins are. I have been reading schematics , but I am really lost when I …
... book.
How is the ULA pins numbered , I can't ... yuv output (or rgb on 128 ) -> adc on the mcu ...New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... =balford;759390]On a toastrack 128? I can do that this ... to align it with the ULA properly.
Thanks,
128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... EAR port by reading the ULA and displaying on screen in ... I need to be in 128 or 48 mode?
128+2 have a built in ...128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... I need to be in 128 or 48 mode?
128+2 have a built in ... /> Yes, code that reads the ULA "EAR" input will monitor the ... />
It should work in 128 k or 48k mode. However ...
