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Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... so each column only changed colour every two rows. I ... halves of the sprites change colour on alternate lines.
... This let me put a seperate colour on each line of ... logic was managed on a timer (an interrupt) ... the gameplay ran at a constant speed, even if ... -
Just for funJust for fun, imagine the Spectrum had a graphics mode where there were two attribute bytes per 8x8 block and each block had 2 bits per pixel choosin…
... that the lo-res colour mode of the C64 ... use it for a four-colour screen with no clash ... a reduced palette), but you'd still have to consider colour ... your moving objects have a different colour palette to your ... and C64 actually uses a character-mapped screen in ... -
Just for funJust for fun, imagine the Spectrum had a graphics mode where there were two attribute bytes per 8x8 block and each block had 2 bits per pixel choosin…
... that the lo-res colour mode of the C64 ... use it for a four-colour screen with no clash ... a reduced palette), but you'd still have to consider colour ... your moving objects have a different colour palette to your ... create an emulator for a quirky computer that never ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... ;468588]Dunny-have you considered a ulaplus style pallete?[/QUOTE]
Well, you've got a 256 colour palette already - and all 256 ... modified with a full 8bits per channel. Support for higher colour depths ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... ;468622]Well, you've got a 256 colour palette already - and all ... modified with a full 8bits per channel. Support for higher colour depths ... -
WANTED: Will pay good money for...I am a Sinclair collector of hardward and here is my current list of things I am looking for. I am happy to pay top dollar for any such items but i…
I have a boxed Sinclair QL and Merlin ... /> The Merlin Tonto comes with a rare colour monitor - they cost over ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... screen resolution please or even a 2x , 3x filter :-)
[/QUOTE ... . See my previous post for a list of other supported commands ... pointless on a 256 colour screen. You cannot determine if a pixel is ... 't work. If you want a LIST, just press enter on ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... pointless on a 256 colour screen. You cannot determine if a pixel is ... 't work. If you want a LIST, just press enter on ... first commands I tried in a pixel fill) no probs.
a pc (by this I mean ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... pointless on a 256 colour screen. You cannot determine if a pixel is ... still use this on 256 colour palette, just use the "inverted ... -
Spectrum Game Character Quiz!Below are displayed characters from 4 well known Spectrum games. Can you [B]name the game[/B] that contained them? All of these games were major hi…
1st: Manic Miner
2nd: Pssst
3rd: Everyone's a Wally
4th: Lords of Midnight -
Job interview tomorrowSo i got a job interview tomorrow and i always do badly in interviews. Any advice?
... ve stuffed yourself into a mothballed interview suit, ... on a nice tie and go for a shirt colour other ... probably just ask you a few questions regarding ... action, not necessarily in a working environment. Give ... Remember that we're in a recession and hundreds of ... -
[SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…
... , so that you could DRAW a pattern and then DRAW it ... draw in INK 0 on a INK 7 pixel, you get ... OVER n, where n is a value from 0 to 256 ... from that - so for a 16 colour palette, doing OVER 15 would ... -
+3 issues....Hello All I came by a couple of +3's on ebay and I'm having issues with them. Since I only ever owned a rubber key, thought someone might be able to…
... working +3 which gives a nice colour picture on my TV with ... -
+3 issues....Hello All I came by a couple of +3's on ebay and I'm having issues with them. Since I only ever owned a rubber key, thought someone might be able to…
... working +3 which gives a nice colour picture on my TV with ... TV? My old sony did a similar thing black screen through ... the signal, there's been a few threads before about it. -
Brand new Horace GameWe could think on how should the next Horace Game be, taking in account that the past three are mixtures of old, well established classic arcade game…
... ;481533]Great game, it's a shame there's no pleasing ... 's a great game...does it really matter what colour Horace is ... ? If he had a standard colour from the ... , I'd feel that was a bit off! :D -
Teodoro no Sabe VolarIt's out! [URL="http://www.retroworks.es/php/game_en.php?id=6"]Go and grab it![/URL] Comment here on in our blog...
... just given this game a try.
I ... is, but there are a number of things that ... textured background was actually just a solid colour (black?)
a hazard which subsequently kills ... when trying to jump in a direction.
... -
.POK collection?Greetings, everyone! I enjoy pokes for Spectrum games, but sometimes before playing a game I need to couple through the-tipshop.co.uk to find the pok…
... hard to say whether the poke is absolutely corrupt or it ... correct. I think that choosing a poke is not entering all its ... , so if you find a non-working poke, it must not be ... -yes, sometimes you must enter A LOT OF NUMBERS just to ... -
Teodoro no Sabe VolarIt's out! [URL="http://www.retroworks.es/php/game_en.php?id=6"]Go and grab it![/URL] Comment here on in our blog...
... just given this game a try.
I ... is, but there are a number of things that ... textured background was actually just a solid colour (black?)
a hazard which subsequently kills ... when trying to jump in a direction.
[/QUOTE]
Best tools, oscilloscope for ZX Spectrum repairHi, Since I'm a newbie in this area, I'd like to ask about the most appropriate tools for ZX Spectrum repair. For example I'd like to purchase an a…
... I would suggest looking for a Tektronix 100MHz digital storage scope ... a green screen CRT rather than a fancy colour LCD, they do have a ... nice user interface and they are a ... instrument. If kept properly a 15 year old Tek will ...HP printer inks FRKN BSTRDS!I have a HP309g photosmart premium printer that I was given by HP when in the US last. Its a very high quality printer. Ok so one of the inks has ra…
... sell the blades for a huge markup, so the ... of printers and getting a decent laser printer instead. ...
I had a HP colour Laser which cost ?220 ... the pages properly, printing a slighty different starting positions ... it run out was a function of the printers ...HP printer inks FRKN BSTRDS!I have a HP309g photosmart premium printer that I was given by HP when in the US last. Its a very high quality printer. Ok so one of the inks has ra…
... QUOTE=Scottie_uk;487515]I had a HP colour Laser which cost ?220 when ... 'll probably not get a decent colour model for much less ... truckin', they just periodically get a maintenance kit, and have ... the extreme end we have a Xerox colour laser machine that cost ...HP printer inks FRKN BSTRDS!I have a HP309g photosmart premium printer that I was given by HP when in the US last. Its a very high quality printer. Ok so one of the inks has ra…
... is recovered into a waste ink depot. In colour printers, there ... is a part called the ... materials. When you bought a cheap colour laser printer, you're ... weeks.
Cheap colour printers are intended for writing ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... get numbes to scroll within a character cell (bottom to ... following that works but is a bit flickery in BASIC, ... 256:
POKE A,PEEK (B+(A-D)/256):
POKE A+256,0:
NEXT A:
...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... numbes to scroll within a character cell (bottom to ... that works but is a bit flickery in BASIC, ... :
POKE A,PEEK (B+(A-D)/256):
POKE A+256,0 ... :
NEXT A:
20 poke 23606,t
30 ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... /> 110 REM *------------------------*
120 LET A=65447-256:
LET C ... A=A+1
160 POKE 23606,A-256*INT (A/256):
POKE 23607,INT (A ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... /> 110 REM *------------------------*
111 POKE 23607,249 : REM 256 less ... FOR f=0 TO 87: POKE 23606,f
140 ... 190 REM *------------------------*
200 POKE 23606,0: POKE 23607,60: REM Reset ... =64000: FOR A=0 TO 79: POKE NUMS+A,PEEK (CHARS+A): IF ACool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... br /> 120 POKE 23607,INT ((65447 ... A=1 TO 5:
FOR B=167 TO 247:
POKE ... A
130 REM *------------------------*
140 POKE 23606,0:
POKE ... A=0 TO 79:
POKE NUMS+A,PEEK (CHARS+A):
IF ALearning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... Setting the border to a specific colour is a good way to check ... using border colour change.
start ld a,7 ; A = ... />
EQU: Equate a name to a specific value - very important ... using 'A' or "A" so 'ld a,'A'' would be 'ld a,65' ...Games that had hidden games built inAs thread title :) Booty is obvious, and I seem to remember something else (Motos / Zub perhaps?)
... ;488629][I]Pyjamarama[/I] had a kinda [I]Space Invaders[/I ... [/QUOTE]
Everyone's a Wally had Asteroids in it, and ... /> And if you held down a a certain key (F, I think ...In colour all these years laterYou know what? Even though I've been playing the Spectrum for more than a decade via emulation and thought I had played everything I wanted to play …
... />
But she has a colour TV, a DVD, and cable or freeview ... mine while I was a kid, because colour TV's seemed to ... cost a bomb back then, so ... we only had a tiny colour portable in the living room ...
