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Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... />
Well my exploration of Z80 MCODE continues apace! I am ... -
48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…
... a chip level, the Z80 CPU only has 16 address ... Fluke 9000 and the Z80 pod connected to the ...
... the first test was a bus test, this tells the pseudo ... the board and the Z80 chip running the board ... is... the Z80 chip itself. The CPU ... -
How to convert TAP to Z80?Hello there! I don't know English language very well, but I need help from you( I want to play ZX-Spectrum games at my Samsug Star mobile phone. I d…
... ] , but it can play only Z80 tape images. How I can ... filetypes (TAP, TZX etc.) to Z80? Help me please :cry: -
Programming flash eprom on DIVIDE+Can you test it on DIVIDE PLUS ? [url]http://velesoft.speccy.cz/other/flasher-divide-plus.zip[/url] (This flash utility is WINSTON's flasher for dia…
Can you test it on DIVIDE PLUS ?
[ ... PLUS interface
- Load this Z80 or SNA snapshot in FATWARE ... -
Starting out...I've just knocked up a very quick guider for getting up and running quickly with an editor/assembler/emulator for anyone interested. It's based on C…
... contexteditor.org/[/url]
Z80 Highlighter file for Context< ... cdn.contextstatic.org/downloads/highlighters/z80.chl[/url]
... />
Copy the Z80 highlighter file (Z80.chl) to C:\Spectrum ... console output?
Test with an example:
Memory upgradeHi! I bought a 16K rubber key Spectrum. It's said in the box and memory test program also said it's 16K machine. Strange thing is that there is yell…
... in the box and memory test program also said it's ... empty sockets between ULA and Z80.
My question is: If ...Z80 Based Laptop[url]http://www.retroleum.co.uk/electronics-articles/previous/the-v4z80p-a-z80-based-laptop/[/url]
[url]http://www.retroleum.co.uk/electronics-articles/previous/the-v4z80p-a-z80-based-laptop/[/url]Z80 Processor Interupt helpHi everyone, Currently designing a Z80 computer and i need a little help with these interupts. If i have an I/O device that sends a pulse to the int…
... ,
Currently designing a Z80 computer and i need a ... pin what exactly does the Z80 do? Does it store the ...ZX Spectrum 48K,issue two - can't get it repairedI have an issue 2, which has some weird very small PCB hanging over the Z80. Some wire go to various places on the big PCB, two go to connections 36 …
... small PCB hanging over the Z80. Some wire go to various ... dead.
Test 1 = ok
Test 2 = ok
Test 3: LEDS ... 4 times)
Test 4 = ok
Test 5: LED's 3 ... />
I'd say:
Z80 = working
ULA = working (type ...Z80 disassembler C/C++ source codeHello, I just thought I might share the [URL="http://zxds.raxoft.cz/docs/z80d.cpp"]source code[/URL] of the Z80 disassembler I have written for [URL…
... "]source code[/URL] of the Z80 disassembler I have written for ... way of understanding how the Z80 CPU breaks the opcode sequences ...Using a Z80 CPU in a 48K Spectrum?Will a Z80 CPU (which I have) work well enough in a 48K Spectrum to give me an indication as to whether the Z80A CPU in there is duff? Thanks for re…
Will a Z80 CPU (which I have) work well enough in a 48K Spectrum to give me an indication as to whether the Z80A CPU in there is duff?
Thanks for reading - weathereye.Is ZX80 really "Z80 only"?The Spectrum has ULA to generate video display. Does the ZX 80 have any kind of processing chips apart from Z80? How is the video display generated o…
The Spectrum has ULA to generate video display. Does the ZX 80 have any kind of processing chips apart from Z80? How is the video display generated on ZX80? How does it compare to Atari 2600's CPU + TIA combo?Z80 Music Portal - massive updateHi there. Finally I found some time (and life forces) to make a massive update of [url]http://z80.i-demo.pl/[/url] music portal. Mostly songs by S…
... massive update of [url]http://z80.i-demo.pl/[/url] music ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... basic understanding of Z80 microprocessor architecture and Z80 assembly, but it ... the game data (.tzx, .z80, whatever). How should I handle ... detailed information about emulation of Z80 microprocessor/memory, they give ... and I want to test it with some simple ...This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…
[img]http://www.711chan.org/test/src/130427925559.png[/img]
Z80 chip. What this means ... the host computer, not the Z80. Floating point routines, the ... if you have a Z80 on your computer, it ... is loaded into the Z80's address space so ...Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…
... bytes. I did the same test using Spectaculator and it behaved ... microdrive cartridge to do this test using the same commands I ... to call anywhere in the Z80 address space, with the shadow ...Success with cassette sdcard adapter and +2After far too long fiddling with tape volume and various compressions of tape files converted to mp3 I was able to get my +2 to to load files from th…
... to code a game in z80 I haven?t used in ... like a reliable Spectrum to test on :smile:
BarnieZX80 Rom and Z80Can you pop a ZX81/TS1000 Z80 in the ZX80 as is and can you burn a rom to eprom and pop in? I'm watching an auction on Ebay and both Z80 and ROM are…
Can you pop a ZX81/TS1000 Z80 in the ZX80 as is and can you burn a rom to eprom and pop in?
I'm watching an auction on Ebay and both Z80 and ROM are missing.z80 Startuphi everyone, does the z80 upon start up reset all registers (including A) to 0? Many thanks, Robin
hi everyone,
does the z80 upon start up reset all registers (including A) to 0?
Many thanks,
RobinHelp testing Elite on Opus Discovery image LenslockHi folks, I've recently bagged the Opus Discovery version of Elite by Firebird, but I'm having trouble getting the lenslock to work. .... scrub tha…
... it working and saved a Z80 snapshot after the screen.
If anyone wants to test it prior to release on ... support or anything, but please test and let me know if ... /> I was only able to test it on Eighty One, I ...Taking the Spectrum for a bath - Lots of SEXY photos!Decided to take a Spectrum +2 for a bath this weekend. It was non-working, so it needed fixing. It booted to a fuzzy dark picture and I thought "Ah, …
... perfect for Spectrums.
A test TV is prepared, as is ... a little heatsink onto the Z80 CPU. This *probably* dosen't ...Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... ,
Nearly made my z80 computer with 2K ROM 32K ...A +3, bags of 3" disks and wanting to run snapshots!My nostalgic speccy journey took a massive leap recently. I fished out my long lost +3 from storage. Pimped her out with some +3e roms (thanx to Keit…
... love to get a few z80 snaps going with the hardware ... winning :( just cannot get the z80's running...
I ... out of storage to actually test it. I can get a ...ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …
... equipped with a 20MHz CMOS Z80; the FPGA core can run ... ; there are reported also some test results:
[URL="http ...IDE Hard Drive on your Spectrum!Hello there my fellow WoS'ers Today, I am going to share with you something that has truly captivated me over the last couple of months, some of you…
... device, this plugs into the Z80 CPU socket and provides an ... /> Now, I have yet to test this on a 48k or ...Spectrum 8bit IDE adaptersHello there my fellow WoS'ers Today I am pleased to (finally) release these little adapters into the wilde [URL="http://postimage.org/image/1aceto6…
... Adpater is driven by the Z80 and the ROM on the ... - I have yet to personally test this on a 48k/48k ...Published Reviews of Programming the Z80 (Rodnay Zaks)I have started an article on Wikipedia for the book Programming the Z80 and would like if possible to reference any published reviews. Had a quick se…
... for the book Programming the Z80 and would like if possible ... a general text on the Z80 and not computer specific. What ...
