-
Overclock the Z80 cpu to smooth out gameplay?Was thinking today of a Genesis/Megadrive mod I did a while back. It involved lifting the CLK leg on the motorola 68000 cpu (which in the MD, if I r…
... believe was handled by a Z80 cpu).
Well, I ... + or +3e) by lifting the Z80's CLK pin and adding ... -
Problem with Pasmo Assembler/Speccy emulator?I'm at the start of trying to learn Z80 assembly for the ZX Spectrum. I'm using Speccy 1.7 as my emulator, Pasmo as my assembler, and am following t…
... start of trying to learn Z80 assembly for the ZX Spectrum ... .com/2011/12/introduction-to-z80-assembly-part-i.html[/url ... "" which I learned from a random video I watched is what ... -
Interesting 48K failureI thought I'd recount a failure I've not seen mentioned before that I saw tonight while fixing a 48K issue 6 board. The background: The initial fail…
... /> 2. A fault with the Z80 (pretty unlikely). I could discard ... spurious IO signal from the Z80.
3. Intermittent ULA ... , sometimes activating and causing some random IO function to be activated ... a transistor. Given an NMOS Z80 (which has much lower output ... -
Sinclair / z80 books (Zaks & Dale)As part of a continuing clear-out, I'm selling the following books, and will accept offers: The Sinclair Story - Rodney Dale (1st edition hardback, …
... condition)
Programming the Z80 - Rodnay Zaks (softback in well ... -
How to load a +3 dos file from disk to memory in z80Hi all again, Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination? Thanks.
Hi all again,
Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination?
Thanks. -
Deterministic random number generatorI'm looking for a random number generator in assembly which, given a seed, the generated sequence is always the same. You change the seed, you get a …
I'm looking for a random number generator in assembly which, given a seed, the generated sequence is always the same. You change the seed, you get a different sequence, but same seed = same sequence.
Any pointers? -
Clear command in z80Hi, How would I replicate what the basic clear command does in z80? Do I need to change the stack pointer as well as setting ramtop (23730)? If I se…
... basic clear command does in z80? Do I need to change ... -
"Z80 chip MUSIC SITE" updatedZ80 chip MUSIC SITE [url]http://z80.i-demo.pl/[/url] has been updated with following 1-bit chiptunes, recorded from real Sinclair hardware: [url]htt…
... [/url]
[url]http://z80.i-demo.pl/Raphael_Goulart-Dancing_frantically_for_about_26_secs ... [/url]
[url]http://z80.i-demo.pl/Mister_Beep-Stellar_Cruiser_Assault ... [/url]
[url]http://z80.i-demo.pl/MovieMovies1-It_keeps_on_beeping_something_Russian ... -
Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... docking editor for writing Z80 assembler.
It will ... dropboxusercontent.com/u/77288/Z80%20Asm%20Editor/app_small.png ... dropboxusercontent.com/u/77288/Z80%20Asm%20Editor/app_large.png ... .dropboxusercontent.com/u/77288/Z80%20Asm%20Editor/app_settings.png ... -
Convert .Z80 to .jarIs it possible to convert a Z80 snapshot to a stand alone Java app that can be used on a mobile? Most of the Spectrum games in the archive have link…
Is it possible to convert a Z80 snapshot to a stand alone Java app that can be used on a mobile?
Most of the Spectrum games in the archive have links to Java apps that can be played online.
Or will I have to use an emulator? -
Need help: pasmo z80 x-compiler macrosIs anyone here an expert on macros for the Pasmo Z80 cross assembler? I need to know how to write a macro to assemble "DW link", then redefine link t…
... on macros for the Pasmo Z80 cross assembler? I need to ... -
TAPlist - the emulator versionI've got this working reasonably well; there's just a couple of small extra features which I want to add. (Recall that TAPlist writes a formatted lis…
... as well as TAP & Z80 files with the program & ... one which I picked at random from my "back catalogue", written ... -
Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... ULA+ and SPECTRA. When the Z80 writes to memory, that write ... -
ESXDOS 0.8.5 and .Z80 on +2B or +3Last week I received some .Z80 snapshot files from a DivMMC EnJOY! user to test. These files didn't work on his ZX Spectrum +2B. [URL="http://benophe…
Last week I received some .Z80 snapshot files from a DivMMC ... [/URL] containing four of these .Z80 files.
[U ... from the shelves and the .Z80 files didn't work.
Z80 CPU was a cause of ... -
Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
... /z88dk/libsrc/_DEVELOPMENT/stdlib/z80/asm_qsort.asm?revision=1 ... z88dk/libsrc/_DEVELOPMENT/adt/wa_priority_queue/z80/"]new heapsort[/URL] implementation ... /> {
numbers[i] = rand(); // random
// numbers[i] = i; // ... -
z80 commands timeshi! I need site with z80 commands mashine times. I remember, I saw one as table, maybe in .cc domain, but pity forgot link. for example LDI take 16 …
... !
I need site with z80 commands mashine times. I remember ... -
llvm-z80 statusFew months ago I read about efforts to produce llvm back-end for the Z80 (even perhaps as part of new z88dk). Any update on that? I found [URL="htt…
... llvm back-end for the Z80 (even perhaps as part of ... ="https://github.com/earl1k/llvm-z80"]this but I have no ... -
Z80 Pins ScamblingDon't if this is any interest for anyone: "If you look closely at the datasheet for a Z-80 chip, you'll notice the data pins are in a random-looking…
Don't if this is any interest for anyone:
"If you look closely at the datasheet for a Z-80 chip, you'll notice the data pins are in a random-looking order."
[url]http://www.righto.com/2014/09/why-z-80s-data-pins-are-scrambled.html[/url] -
Creating a linked list in Z80[FONT=Calibri][SIZE=3]I am using a circular buffer to store tiles to be displayed on the screen. Tiles only appear for a set period of time, so when …
... gone down this route in Z80 or can anyone provide some ... -
z80 reverse engineeringI came across Ken Shirriff's blog today where he is reverse engineering the Z80 from images of a Z80 die. I guess this may be of interest to those of…
... reverse engineering the Z80 from images of a Z80 die. I guess ... -
FuzixOS - New Z80 OS[url]https://plus.google.com/+AlanCoxLinux/posts/a2jAP7Pz1gj[/url] Alan Cox releases a new Unixoid OS for Z80 machines... Coming to Spectrum soon, I …
[url]https://plus.google.com/+AlanCoxLinux/posts/a2jAP7Pz1gj[/url]
Alan Cox releases a new Unixoid OS for Z80 machines... Coming to Spectrum soon, I hope? -
Blockly for Z80As a first step on a project of mine, I'm trying to adapt [url=https://developers.google.com/blockly/]Google's Blockly[/url] to generate Z80 assembly…
... 's Blockly[/url] to generate Z80 assembly code.
[url ... ://www.haroldo-ok.com/blockly-z80/blockly-z80/index.html]I already ... ://github.com/haroldo-ok/blockly-z80]GitHub[/url].
Of ... to generate code for other Z80 machines... ;) -
Z80 Special ResetThe Z80 CPU has two types of reset, normal and special. The latter is little-known and for more information please see [url]http://www.primrosebank.n…
The Z80 CPU has two types of ... ]http://www.primrosebank.net/computers/z80/z80_special_reset.htm[/url]
Return to basic from sna created by Z80 compilerHow can I go back to basic when running sna created using Z80 Assembler ([url] http://www.worldofspectrum.org/utilities.html#crossass [/url])? For e…
... when running sna created using Z80 Assembler ([url] http://www.worldofspectrum ...Help for beginner with z80Hi chaps, I'm reasonably new with z80, but had a fair amount of experience with 68000, so decided to give a few things a go. One little thing I'm t…
... /> I'm reasonably new with z80, but had a fair amount ...Match Day - Maximum number of goals (?) and a bug compilationGreetings. I'm willing to share some stuff about old Ritman's classic Match Day, so let's get on with it. :smile: PART 1 ------ I was curious abo…
... choices (which I assume is random), some of our own teammates ... is recommended to raise the Z80 speed to 4x or higher ...Falling Blocks - new game from z80 assembly beginner<p>I started learning z80 assembly earlier this year, mostly from reading Jonathan Cauldwell's "How to write ZX Spectrum Games" and from reading arti…
I started learning z80 assembly earlier this year, mostly ...Ziloghino - Arduino like Z80 systemHi, I found this board on Kickstarter, the Ziloghuino. It's an Arduino like Z80 system extensible with hardware shields. With some effort maybe s…
... . It's an Arduino like Z80 system extensible with hardware shields ...New Game ~ Zombo![img]http://2.bp.blogspot.com/-aKUeQ1ePvIs/VauzoRJPNVI/AAAAAAAAA0I/QuG8vW_pqNY/s1600/Zombo%2Bloading%2Bscreen.bmp[/img] From my brother's blog....…
... of semi-challenging gameplay!
Random teleportations into different areas, becoming ... the instructions above, tzx, tap, z80 and sna files, and a ...
