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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…
... much you want it to shift the next time it executes ... -
Spectrum+ keyboard problemGot two speccy plusses both with exact same problem. Both have new membranes and both won't do as they are told, basically it boils down to symbol sh…
... it boils down to symbol shift putting the computer into extended ... -
Buzzing Grey +2This is mentioned in another thread but I thought I had best start a new one regarding this. Basically Ive done TR4, put a 5.5k resistor to R38 and …
... and replaced all the electrolytic caps
However, now I ... -
ZX-Modules Updater 0.9.1 publishedDear friends of ZX Emulation, today I updated my downloading tool ZX-Modules Updater. I fixed an annoyinh bug with created autostart and Desktop ic…
... has been configured a shortcut Shift+W or B respectively by ... -
divide problems.Just bought an divide that does not seem to work so I'm asking for any advice here. When I plugin I get the divide screen which then hangs. Press re…
... levels and also replaced the caps in the PSU all to ... -
Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... ; hl = E * H
; shift left eight bits
shift left, costing an additional 43 ... -
Selling adviceHello all, Recently had a loft clear out and found a console with 178 games and was hoping you could point me in the right direction to sell. I am…
... tapes are damaged, looking to shift the lot in one if ... -
reversing an LFSRWhat's the correct way of reversing an LFSR so that it produces the same numbers but in reverse order? The little BASIC program below shows a test I …
... 5,4,3,2 right shift; reverse taps 1,5,4 ... ,3 left shift); regardless of where I start ... 13,12,10,9 right shift; reverse taps 1,13,12 ... ,10 left shift) the reverse sequence goes wrong ... -
Toastrack membrane replacedI have replaced a couple of rubber key membranes before, had no trouble. I today replaced a membrane on a toastrack. All the keys works, but the ar…
GEDit syntax highlighting for Boriel's ZX BasicHi! I just tailored this syntax highlighting code and would like to share with he community. Suggestions are always welcome, though the file works w…
48k Missing D15Got a 48k here that is missing D15 (just below right molex connector), someone removed it in the past, only just noticed it was gone after replacing …
Got a 48k here that is missing D15 (just below right molex connector), someone removed it in the past, only just noticed it was gone after replacing a few caps. My question is, what behaviour would I expect to see on screen if it was missing?Castlevania demoFrom the author of the game Survivisection ( [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027982[/url] ) new game project - the legendary C…
... ://youtu.be/8GbQ1OVkpXw[/url]
Shift-special attack
1-5 ...SpecBAS 0.802 Released!Hi folks - It's that time again when I release the latest round of features and bugfixes to SpecBAS :) New for this version are ZONEs which act ver…
... of 0 to 360
INKEY$ now picks up other keys ... ) cleared the keybuffer inappropriately, causing INKEY$ to lose keys
In ...ZX Alien Breed - WIPI'm sure a lot of you have seen the discussion in the New Game Ideas area about a Speccy version of the classic Amiga game Alien Breed. I've been dro…
... -copy routine means I can shift individual alien data into the ...Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…
... huge, multi-block sprites and shift them up and down the ...3D Games in SpecBAS!Not really :) Actually, yes - here's a type-in for you: MontyMole's "Crap Castle Master" [code] ZXASCII AUTO -1 PROG CrapCastleMaster 1 REM Crap Ca…
Not really :)
Actually, yes - here's a type-in for you: MontyMole's "Crap Castle Master"
[code]
ZXASCII
AUTO -1
PROG CrapCastleMaster
1 REM Crap Castle Master by A Lycett adapted to SpecBAS
5 WINDOW ...Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…
... a ; avoid special condition without shift / i.e. jr z
ld b,a ; our shift counter
xor a ; a ... =0
scf ; our shift bit
loop: rra ; to ...grainy +128k toastrack picturei dont know if maybe its normal but the rf picture is really grainy if thats the right choice of word,and i read some were that replacing the caps wi…
i dont know if maybe its normal but the rf picture is really grainy if thats the right choice of word,and i read some were that replacing the caps will bring the picture back to as new is this true?ZX-FPGA dev boardI've been sporadically working on this: [IMG]http://photo.alioth.net/tmp/spectradvi.png[/IMG] It's an FPGA dev board for the Spectrum. It uses a CP…
... . It uses a CPLD to shift the voltage levels between the ...48K rgb output? Also, OTLA.A couple of weeks ago I scored 2 48K Spectrums on eBay for ?27 with 1 PSU, 1 TV cable and about 10 tapes....score or what!!!! One turned out to be a…
... /> So I replaced all the caps on both boards (just because ...New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …
... , and half the keys and shift keys didn't work, so ...First game with OPQA controlsHi, I've got quite an interesting question today, what is the first game that uses QAOP(M/SPACE) controls? I was searching a bit and found Gobbleman…
... is controlled by OP and CAPS (making it the first game ...New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…
... ROM without the need to shift the character set bitmaps down ...DEATH is getting old.....I don't know, maybe it's just me getting old or something... There's a few things happening on here that I just don't understand. We have people th…
... out all of the electrolytic caps in my Spectrum"? How can ...Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... where I changed all the caps and did the [URL="https ...New version emulator ZEsarUX-1.2Hi I have uploaded a new version of my ZX80/81/Spectrum emulator at [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added emulat…
... ;2, Cursor Joystick, Cursor & Shift, Fuller, Zebra, Mikro-Gen. Autofire ...1st interface in 30 years (update)Hi all, Just a wee update to my "1st ZX interface in 30 years" project. Main IC's: 82C55 three 8-bit port I/O (configured for 12 dig in, 12 dig out…
... high = VALTOSEND >> 8; // Shift the integer right 8 bits ...Spectrum Issue 2 - TR6 ReplacementI've just got my hands on an Issue 2 ZX Spectrum, that needed some repairs. The picture quality after doing a composite modification was pretty shodd…
... I replace all the electrolytic caps and now the picture is ...ZX BlockEditor questionAs we are talking in another thread about the development of Claus Jahn utilities, I would have a request to Claus about Zx Blockeditor Some time ag…
... to block start
- with SHIFT point to block end = select ...Positive or Negative Capacitor?Quick question, I'm just replacing all my caps on my 48k.. I've come to this one and I just want to make sure my assumption is correct. [IMG]http://…
... 'm just replacing all my caps on my 48k.. I've ...
