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redirecting Z80 sub-routine CALLsI'm working on changing a TR-DOS disk program to work from standard +128k tape and thought that rather than painstakingly working through the code ma…
... way to code this in Z80 assembler to work automatically, or ... -
z80 Code Profiling (RESOLVED)Hi All, Just a quick question to ask if there is any way of profiling z80 Code for the Speccy??? I'm trying to write a piece of software and I curr…
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... the multiplexer outputs from the Z80 side are higher. Hope that ... -on. If the RC-generated reset pulse is not wide enough ...Help with Xpectroid[URL="https://play.google.com/store/apps/details?id=com.seleuco.xpectrum&hl=es"]Xpectroid[/URL] has 128k model as starting setting. Some Z80 files …
... starting setting.
Some Z80 files in 48K can't ... TZXs as I make a reset in 48k and load them ... . If I make a 48k reset and load the file, it ...Replaced Z80 now a very dark screen!Today I dag out an old issue 3 that ive known for a long time has a faulty Z80 (M1 line) so I heat gunned it out, socketed it and replaced it with a …
... long time has a faulty Z80 (M1 line) so I heat ...Excel -> OpenOffice Z80 spreadsheet problemI tried transferring my [url=http://www.users.globalnet.co.uk/~jg27paw4/pourri/z80times.zip]Z80TIMES[/url] spreadsheet from Excel to OpenOffice the o…
... correct, as it looks up Z80 command timings from Einar's ...Help me resurrecting a 128KHello to everybody. I'm really struggling along a repair of a standard 128K a friend of mine handed me over some (ok, actually a lot of) time ago. A…
... whole contended RAM bank, the Z80, ROM and PAL without luck ... /10th of a second after reset, then stops. M1 does the ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... ://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PSC-New-Sinclair-ZX81 ...High Score ASCII array reset ?Hey guys, Noob alert! I'm working on my first game and I'm having problems with the high score on the second time through the game loop. My high …
... , the high score does not reset.
I wrote a ... this, but it doesn't reset the ASCII values back to ...Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…
... which current ones in the Z80 set would you replace?Adventure Skabet.z80Skabet.z80 (from Wos Archive) will not load.... Am I wrong ?
Skabet.z80 (from Wos Archive) will not load....
Am I wrong ?Ticks, the first command line Z80 emulatorThe project page is in Spanish: [url]http://retrolandia.net/foro/showthread.php?tid=43[/url] So I will expain a little. Ticks is an emulator that …
... of file process across a Z80 routine.
The emulator ... core has passed the Z80 Exerciser:
[url]http://mdfs ...New Z80 CPU emulation testerI have finally wrapped up the new [URL="http://zxds.raxoft.cz/taps/misc/z80test-1.0.zip"]Z80 tester package[/URL] I have previously announced in [URL…
... /misc/z80test-1.0.zip"]Z80 tester package[/URL] I have ...Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…
... it, I'd need to reset the Spectrum and load that ... data. After testing I'd reset again and load my source ... the limited power of the Z80 processor.
Having Mike and ...Configuration of FPGA coresHi all! Lately a lot of features have been added to the V6Z80p Spectrum core. Most of them are handled (clearly) using ports. Some examples: ULA+, Ti…
... ) will be available to the Z80; when the configuration
will ... ", the resulting Speccy will be reset and
the standard ROM ...Loading .z80 filesHi, I have a +3 with MF3, but the tape player I bought doesn't output a loud enough signal to be heard by my Spectrum. Of late, I've been loading .…
... got a few games in .z80 format (these are snapshots, I ... , though hopefully I can run .z80 directly from my CF card ... something similar to "playtzx" for .z80? (I've been using playtzx ...Fastest Z80?Hi , Could somebody explain more about the Kawasaki Z80 33 MHz to me? Is it fully backwards binary compatible with older Z80s and could it be used a…
... explain more about the Kawasaki Z80 33 MHz to me? Is ... only find this:
Z80
? 8-bit microprocessor
Which type of Z80 cpu to use with ZX 48?Which type of Z80 cpu can I use with ZX 48? Only the 4 MHz cpu's or some with more MHz? Did not know if a 6 MHz cpu runs in a ZX 48 with 4 MHz. Mic…
Which type of Z80 cpu can I use with ZX 48? Only the 4 MHz cpu's or some with more MHz? Did not know if a 6 MHz cpu runs in a ZX 48 with 4 MHz.
MickyCompiling Lisp to Z80.I am doing some thought experiments on this. Here is an example of a Lisp program. It adds two numbers together. [code] (define (add x y) (if (= …
... code translated by me to Z80 (there could well be many ... , I've not done much Z80 before at all so bear ...128K Toastrack - bad Z80?My 128K Toastrack works fine, but if I try to use divIDE or M1/128 it does not work. divIDE does not show the boot screen and in both if I push the N…
My 128K Toastrack works fine, but if I try to use divIDE or M1/128 it does not work.
divIDE does not show the boot screen and in both if I push the NMI button, the Spectrum resets.
Is a bad Z80 CPU?
My soldering skills are so bad. :(maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …
... maximum addressable RAM for a Z80 using bank switching?
... this the limit for a Z80?
A ... address lines from the Z80 are used to select ... bits come directly from the Z80 address bus.[2] Effectively ... address space of the Z80 processor is divided into ....Z80 File Format when exported by SpecEmuI'm trying to parse a .Z80 file generated by SpecEmu but am getting a few discrepancies from [url=http://www.worldofspectrum.org/faq/reference/z80for…
... 'm trying to parse a .Z80 file generated by SpecEmu but ...reset for 48k via edge connectorHi, I really want to wire up a reset button for my 48k, i know how to do this internally, as per the spectrum+ upgrade. But I'd prefer to do it via …
... want to wire up a reset button for my 48k, ... connector that was just a reset button. I'd like ... could just solder a reset switch between 20b and ... :
[I]20B RESET momentarily connecting this line to ... (video ground 14b) will reset the machine just as if ...The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…
What's the best Z80 for Spectrums?
I ... technologies (CMOS, NMOS), so what Z80 would you recommend for Spectrums ...Spectrum Z80 UIDE Rev 3.1E - 8bit IDE AdapterHello my fellow WoSer's Recently I had some bad luck with my local post-office - this lead to some problems requiring me to have some more adapters…
... these
[B]Z80 Universal Z80 IDE adapter Rev 3.1e ... ]
[B]?19.99 1x Z80 UIDE Adapter Rev 3.1e ...Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... has some of the best Z80 coders in the world, I ...z80 uide problemCould someone help me with the z80 uide. I would like to know how to get an emulator to read the CF disc and put my games on there please
Could someone help me with the z80 uide. I would like to know how to get an emulator to read the CF disc and put my games on there pleaseHow to test Z80 Code?Hi All, Is there a way to test a block of z80 code (nothing speccy specific in it) with many different inputs? The reason I ask is that I'm writing…
... to test a block of z80 code (nothing speccy specific in ...Z80 questionbeen told that the DivIDE 2K11 i ordered may not work with my +2 gray due to the Z80 I may have. The one I have is as follows Zilog Z8400APS Z80 86…
... +2 gray due to the Z80 I may have.
Zilog
Z8400APS
Z80
8627
Does ...
