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problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... /> next week i get new z80 cpu and change this is my ... I sent to him after z80 change ...
any sugestions ... -
How did people write large assembler programs on real Spectrums?I have been wondering how people did their development back on real Spectrums. If you should write a large program, there would first be an assembler…
... was only ever available for Z80, 8080 and later 8086 based ... [URL="http://www.cpm.z80.de/source.html"]CP/M also ran ... -
problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
Hi All,
I change z80 cpu (my last hope)
[url] ... -
Is Ferranti still alive ?And if not......why should there be any restrictions on manufacturing the ULA ?
... components still made is the Z80 CPU and the 74-series glue ... -
Things not to do online in a public forumDue to recent posts on my part, I thought this would be a good one. Basically in joke form I raised the idea that an image uploaded to this forum co…
... both have keyboards and a Z80 CPU, you can't expect to ... -
ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... -Made-of-ULA-Chip-for-Z80-CPU-ZX-Spectrum_W0QQitemZ120137893224QQihZ002QQcategoryZ4193QQrdZ1QQssPageNameZWD1VQQcmdZViewItem[/url]
[/QUOTE ... -
68000 programming.Anyone here know anything about this? My question is: how does the programmer know how long hisinstructions are? Do determine the operands to branch …
... . Opposite to our beloved Speccy Z80 CPU. -
super-quick games in BASIC?do you think, games written in BASIC could run flawlessly at high speed when run in a speccy emulator at, say, 1000% speed? (i wonder, speccy is rare…
... just before the (Spectrum's) CPU intensive routines were called, the ... at the end of the Z80-CPU intensive routines, the [I]Normal ... -
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…
... So... how does the Z80 know that the interrupt should ... />
Read the Z80 user guide. Read it again ... out to implement the Z80 CPU in software. It won ... runs in IM1. The Z80 User Guide describes everything ... visit:
[url]http://www.z80.info[/url]
MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]
... do that without hogging any CPU time.[/quote]
Once ... last point, Z80 DMA is natural companion of Z80 CPU. In fact, not ... only ZX Spectrum can gain benefit of Z80 ...MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]
... point, Z80 DMA is natural companion of Z80 CPU. In ... fact, not only ZX Spectrum can gain benefit of Z80 ... />
Yes z80 dma makes for faster data ... transparently to the cpu, meaning the cpu stops while the ... copies, replacing the cpu's LDIRs with a ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... ]http://cgi.ebay.co.uk/Z80-CPU-BRAND-NEW-FOR-SINCLAIR-SPECTRUM ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... />
:-P First, all Z80(A) CPU are 4 Mhz ! and NEC ... Mhz Z80 CPU !
[URL="http://www.cpu-world.com/CPUs/Z80/NEC ... -D780C-2.html"]http://www.cpu-world.com ... /CPUs/Z80/NEC-D780C-2 ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... =Gods;218494]:-P First, all Z80(A) CPU are 4 Mhz ! and ... Mhz Z80 CPU !
[URL="http://www.cpu-world.com/CPUs/Z80/NEC ... -D780C-2.html"]http://www.cpu-world.com ... /CPUs/Z80/NEC-D780C-2 ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... 4 MHz version of the Z80.
Would be a ... !:-D
Regarding the Z80 CPU chips it looks like the ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... !:-D
Regarding the Z80 CPU chips it looks like the ...Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... Z84C0008PEG (Z84C00 means a CMOS Z80 CPU, 08 means rated up to ...50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
... of the emulated system. The Z80 CPU has to be emulated for ...Full throttle CPUHello, I was just wondering: do you experts know if any of the 48K games pushes the Z80 CPU to 100%? I mean, every CPU cycle is used? If so, what's t…
... the 48K games pushes the Z80 CPU to 100%? I mean, ... every CPU cycle is used?
... tasks are solved with minimal CPU cycle counts - in other ... 3D games are those where CPU is pushed to limits. ... often static situations, so CPU does some waiting most of ...Faulty Spectrum (help requested)I have an issue 6a specci. It's Z80 has the fault m1 line problem (Multiface 128 does not work). So I decided to put in a new Z80 but unfortunately i…
... 6a Spectrum. With the same Z80 CPU as before (when it was ...Faulty Spectrum (help requested)I have an issue 6a specci. It's Z80 has the fault m1 line problem (Multiface 128 does not work). So I decided to put in a new Z80 but unfortunately i…
... 6a Spectrum. With the same Z80 CPU as before (when it was ... the M1 pin of the CPU to the edge connector?
Someone said it was impossible...[url]http://user.tninet.se/~vjz762w/zxusb.html[/url] If it ever gets as popular and as stable as the DivIDE, we might see an internal version one da…
... ]
Not lot of Z80 CPU if I would say, HOST ... USB chip has dual CPU power to
handle the ...help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... move data around on the z80 is with push and pop ... [/I]book refers to [I]Z80 CPU instruction set[/I] published by ...Emulator accuracy test?When I first created my emulator it worked fine. But then I found one or two games that had odd quirks. Eventually I found the flag or command that w…
... -based test suite for a Z80 CPU.
OK, as ... programming practices which make the Z80 core tricky to test in ...Emulators on the ZX SpectrumHaving released a Spectrum 16K emulator for Spectrum 48/128 machines as part of CCG2008, I was wondering if anybody knows of any emulators which actu…
... /> Anyone who wants the Z80 emulator-source can get it as TXT ...MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…
... />
[QUOTE]In original Z80 DMA manual (book)[/QUOTE]
Z80 CPU Peripherals User Manual), and ... CONTINUOUS DMA mode Z80DMA stop CPU and transfer complette data ... port. After DMA transfer will CPU continue.[/QUOTE]
...Probing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…
... Zaks books was to the Z80 CPU.
Get yourself a copy ...2 Spectrum +3's need urgent helphi guys i have 2 spectrum +3's but both are not working properly, does any one know how to repair them i dont mind giving one away if they help me fi…
... ;265043]do you mean the z80 rom im wondering if i ... />
ive tried both the z80 cpu out of another machine and ...2 Spectrum +3's need urgent helphi guys i have 2 spectrum +3's but both are not working properly, does any one know how to repair them i dont mind giving one away if they help me fi…
[quote=xybots;265580]ive tried both the z80 cpu out of another machine and still the coloured borders, also tried the amstrad roms and still the same any other ideas[/quote]
sounds like it's the ram then, or ULAProbing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…
... Zaks books was to the Z80 CPU.
Get yourself a copy ...
