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128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... same test on a 48 ULA, because I don't have ... any spare ULA and it is well documented ... . You have written book about ULA 48 but it is impossible ... out any information about ULA 128 or ULA +3 or ULA in ZX Interface ... -
BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... ]Hi Ccowley,
Border AY Demo for 128K only?
Is ... /> Hi MB. Yes, that demo is 128 only, but no it's ... what I did in the 128 demo source).
Making a ... [b]both[/b] 48 and 128 would be a little more ... -
Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... should get glitching on a ULA 128, but not on an ASIC ... 128. Only SpecEmu showed up the ... -
Spectrum +2 EPROM in Spectrum +2AHi, My friend Marc bought a +2A from Tim Abbott at the Spectrum 30 event. Back in the day there were companies selling +2 ROMs to put into +2As to r…
... />
Unless you have a ULA 128 + keypad, or a +2A/+2B ... ) and a version of the 128 editor ROM with three bytes ... -
Spectrum +2 EPROM in Spectrum +2AHi, My friend Marc bought a +2A from Tim Abbott at the Spectrum 30 event. Back in the day there were companies selling +2 ROMs to put into +2As to r…
... ;652913]Unless you have a ULA 128 + keypad, or a +2A/+2B ... -
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 ... -
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 ... -
C64's SID music on ZX - the demo is HERE!!I'm proud to announce, that two great persons from Central Europe - Poke & Omega - have made something really important for Spectrum world. Now ZX …
... !!!!!
Load this demo (first demo for ZX with SIDsound mode ... models of ZX:
ZX 128+
ZX +2
ZX ... /> ZX +3
Didaktik Gama 128 (with Melodik of coz)
128 and it worx correctly!!
OT: Favourite 128 tunesWhat is your favourite 128 tune from game or demo? Shock Megademo has some excellent tunes. My favorite is the screen after the "chess board". This …
What is your favourite 128 tune from game or demo?
Shock Megademo has some excellent tunes.
My favorite is the screen after the "chess board". This is the same tune as the last screen in Mania demo.Favourite 128 tuneWhat is your favourite 128 tune from game or demo? Shock Megademo has some excellent tunes. My favorite is the screen after the "chess board". This …
What is your favourite 128 tune from game or demo?
Shock Megademo has some excellent tunes.
My favorite is the screen after the "chess board". This is the same tune as the last screen in Mania demo.Multiface 128 problemHello everyone i have a 48k plus speccy which i firstly thought was working perfectly. It passed all the test of the official Sinclair test tape (cpu…
... Sinclair test tape (cpu, rom, ula, ram) so i thought it ... /> Today i bought a multiface 128 from ebay, On this particular ...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 …
... ok.However whenever the spectrum 128+ is connected on that channel ... a faulty Ferranti ULA chipset?
Unfortunately spectrum 128+ does not ... tv.
If ULA is the problem does anyone ... know if there are replacement ULA chips?I know that ...128 I/O portsIn The Spectrum Hardware Manual there is a small circuit on page 71/72 to allow 128 I/O ports by using IORQ+A7 to override IORQGE, so any I/O access …
... page 71/72 to allow 128 I/O ports by ... with A7=0 prevents the ULA from responding, so freeing ... high to doubly ensure the ULA is not selected. A ... and IORQGE=0. A faulty ULA responds when IORQGE=0, ignoring ... br />
Looking at the 128 I/O ports patch, it ...B.A.D demoZXM 3+4/94 - page 2 - B.A.D. 128/48 (demo) by MQM team 1993 [url]http://zxm.speccy.cz/scany_zxm/94-03&04.rar[/url] [IMG]http://velesoft.speccy.cz/ot…
"8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…
... managed to finish the BEEPER demo with 8-channels songs.
"8 CHANNELS" demo (C) 22.11.2009 by ... of ZX SPECTRUM (jack) through ULA chip.
ZX-7 ... add the intros in the demo because mostly these progs has ...128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
Reading the ULA book has reminded me ... the CPU to fix a ULA bug (p71). The following ... transistor patch and the Dickens 128-port patch both being ... Can anybody explain why the 128-port patch doesn't work ... hardware patch that disables the ULA when A7=0?
...Paralactica demo on divIDE?Hi. Did anybody test this demo on real hardware with divIDE? [url]http://chatkubani.ru/upload/files/paralactika_by_demarche.zip[/url] I tried to …
Hi.
Did anybody test this demo on real hardware with divIDE?
[url]http://chatkubani.ru/upload/files/paralactika_by_demarche.zip[/url]
I tried to load it into 128+ and FatWare - doesn't work.A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... just put a very simple demo to show how easy it ... some comments.)
This demo is actually pretty complex, and ... br /> /****************************************
sp1 Sprite Demo 1
A simple ... 1,1}, {0,128,120,2,0}, {0,128,56,2,0 ...Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
... 64937,0: POKE 64939,128: POKE 64940,0: ... br /> ld a, 128
ld (64939), ... /****************************************
BiFrost demo
08 March ... br /> found in the bifrost demo.
****************************************/
ZX Spectrum ULA core available at OpenCoresHi! On April, 23th, I opened a new project at the OpenCores website: [url]http://opencores.org/project,zx_ula,Overview[/url] Right now, it has a, h…
... , hopefully, complete description of the ULA chip, written in Verilog, and ... Chris Smith.
For demo purposes, I've written a ... on it to act as ULA, with a true Z80 and ... way I hope to tune ULA timmings in case there's ...Game developers and Demo-MakersHello to all who like to write games and demos. We want invite you to the biggest Spectrum-show of the last 20 years. The show will be held in Cambr…
... on the venue
- A demo competition, audience choose the best ... demo released onthe venue
... : Game or demo must run with a normal Spectrum 128 or 48 ...Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... />
Load Hungry Horace. The demo mode starts. After a minute ... another +2.
Multiface 128 works fine.
Components ... +2:
CPU
ULA
AY-3-8912
Glider Rider 128 remix that came on tape.Does anyone remember the 128 version of Glider Rider remix music that I think came on a demo tape on one of the Speccy mags (maybe Crash). It was an …
Does anyone remember the 128 version of Glider Rider remix ... I think came on a demo tape on one of the ... still had the main speccy 128 music in it. ?
If ...ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... memory address generated by the ULA (who wants to read ... two addresses. Therefore the ULA reads the data from an ... ). After that 128T, the ULA is busy drawing the border ... the remaining 228-128 = 100T (or 224-128 = 96T on ... of a screen line (128 tacts) so that R ...Toastrack ULA QuestionDid any of the toastracks have the +128 grey ula with Amstrad printed on them?
Did any of the toastracks have the +128 grey ula with Amstrad printed on them?JHCon 2014Hello, not sure if this is the right category but JHCon 2014 will take place[B] from 28. to 30.11.[/B] at usual place - gymnasium in Jindrichuv Hrad…
... it for a firm Spectrum 128/+2
--- add a proper ... and 48K memory
--- your demo part can NOT BE LOOPED ... modes of TC2048/2068 PAL ULA
--- add a proper Basic ...Ninjaman 8-way scrolling 50Hz multicolour demo :-)Here's a demo I've been working on for a while. The goal was to make the best scrolling routine possible on a humble 48K ZX Spectrum. I was origin…
Here's a demo I've been working on ... it up as a tech demo and release something.
128/+2/+3.
This is ...ZX demo archive[img]http://zxn.ru/screen2/powerup.png[/img] Hi! Welcome to ZX Spectrum demo archive! More than 8000 demos with web-emulator (Pentagon 128); all …
... !
Welcome to ZX Spectrum demo archive!
More than 8000 ... with web-emulator (Pentagon 128);
all demo sorted by year, party ...New colour palette for 16K/48K/+ machines, based on ULA YUV voltagesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …
... ’s book The ZX Spectrum ULA.
This colour palette ... use the original Sinclair Ferranti ULA, 5C102E, 5C112E or 6C001E. It ... is not suitable for 128/+2/+3/+2A machines, as ...
