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Just bought a Spectrum+. Doesn't work. Red bars on screen.Hi all, Something of a noob here. Having recently been on holiday, I came across a Spectrum+ in a box, with a collection of games in a shop, and, af…
... white? If so, then the Z80 and the ROM are most ... the former, the border color test won't work. -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... writes. This means that the Z80 "/WR" signal is not reaching ... ) with the inputs from the Z80 on pins 12 & 13 ... />
So using your meter test and see if IC23 pin ... -
Rodland in colourAs promised (some time ago already ;) ), here is my hack attempt to add some colour to Rodland : [URL=http://www.image-share.com/ipng-1680-98.html][…
... :
[CODE]z802tzx Rodland.z80 -v -s 2 -b 0 ... Ralf's file to Rodland.z80 and took the loading screen ... for a quick test. I'm going to test it on real ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... is not responding to the Z80 MPU at all, and that ... what the Z80 MPU is reading off the ... the location you want to test
20 LET b=PEEK ... could always run the earlier test again and see if you ... -
Rodland in colourAs promised (some time ago already ;) ), here is my hack attempt to add some colour to Rodland : [URL=http://www.image-share.com/ipng-1680-98.html][…
... :
[CODE]z802tzx Rodland.z80 -v -s 2 -b 0 ... Ralf's file to Rodland.z80 and took the loading screen ... for a quick test. I'm going to test it on real ... -
Beepola questionshope this is the right place :) Is there a way to make the playing of the exported file wait until a button is pressed. I would like to sync the mus…
... to a BPM?
My test says tempo 14 = 107,14 ... engines that don't use Z80 interrupts are particularly guilty of ... -
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…
... assembled (enough components fitted to test it)
[img]http://www ... the ULAPlus compared alongside a Z80 chip, which has the same ... -
EmuzWinHi folks I'm using EmuZWin and it's started running games super quick (not all games but some) I've tried messing around with speed settings but eve…
... QUOTE]
As a test for early/late timings, it ... but has one or more z80 core issues[/url], or ... frame timings, but the z80 core is fine, and ... br />
A better test might be [url=http://www ... from the outset specifically to test for early/late timings.< ... -
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…
[SIZE="4"][B]TEST #1[/B][/SIZE]
test basic functionality (JTAG and ... 2 board, because ROM and Z80 are socketed (and of ... 've written for this first test.
[img]http://www ... [/img]
Next test is to build a simple ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... ZX Spin. Select Tools -> Z80 Assembler.
To run our ... /> CHAPTER 3 - move the car, test for collision.
Time to ... can use 'or a' to test for a black paper colour ... , increase by one.
(To test the last bit for odd ...
