-
Help! Reverse engineering a Spectrum game[deleted]
... />
04 - A set of interrupt routines, that is ... br />
14 - A set border routine
[B]LD A ... />
15 - A set of collision routines, that is ... />
16 - A set of box clipping routines, that ... />
18 - A set of screen fade routines
Do ULAs die?Thought I'd start this thread as people often think their ULA is dead, when it's actually the RAM or power circuits. Searching the forum in the futur…
... />
At power on, the border colour is white and the screen ...Do ULAs die?Thought I'd start this thread as people often think their ULA is dead, when it's actually the RAM or power circuits. Searching the forum in the futur…
... ;485447]At power on, the border colour is white and the screen ... its self test. The exact colour tells you whats wrong.
ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …
... on the report that the border colour fluctuates? It should be reset ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... etc. So the attribute colour comes after each 8 x ... />
ld h,d ; Set HL to point to screen ... br /> ld (hl),c ; Set 1st colour
add a ... ,32
ld h,d ; Set ... br /> ld (hl),b ; Set 2nd colour
exx
jp ...Moving screen while BEEPER's playing?Hi. For some time I think about it. First time I saw it on YouTube, on ZX Spectrum Orchestra video. Effects are of course rather simple but still…
... pretty easy to make the border flash colours at the same ... , creating sound and changing the border colour are both just writing to ... of noise or flashing the border during a burst of noise ...ANN: Spectaculator 7.5Spectaculator 7.5 is now available from [URL="http://www.spectaculator.com/"]http://www.spectaculator.com/[/URL] - Spectrum +3 disk images in IPF fo…
... power up, i.e. black border and screen garbage. Subsequently selecting ... screen. Looks like the default border colour is black now during initialisation ...I am a simple man....a layman if you will!...but I had a Spectrum when I was 12 years old that I loved more than was healthy! It gave me a love of computers which remains to this day and I …
... add things like changing the border colour after loading.. load another image ...The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.
... games, where he XOR'd border colour data with IN 255 value ... , so the stripes change colour in the screen area. Unless ...scanners getting the colours wrongmore to do with the colours... really odd one as it's 2 different scanners,different brands also and both mess up the colour thing... RAD version of …
... scanners stumbled with the same colour. I thought it might be ... /> hopefully explains it exactly.. the border colour (where the barcode and "spectrum ... " is ) should be the colour yellow , as in the A ...BUZZSAW+ Demo No. 3Right, another demo of BUZZSAW+. [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_3.tap"]Joefish_Buzzsaw_Demo_3.tap[/URL] The default con…
... already use it to generate border colour markers to work out the ...Japan Tsunami AppealAs some of you will be aware, I've been tinkering with an open source version of SE Basic that could be distributed with hardware without infringing …
... 539504]i can see a 'border stripes' somewhere in process ( ... or so on the border, the 'main' border color is not changed ... happen and pre-fetches the border colour and immediately writes it back ... couple of lines in the border, and more unfortunately sometimes get ...Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …
... color(background color) is set to grey and black ... ld (23693),a ;screen colour system variable
call ... is set ink, the following byte is the ink colour
ld a,16 ;set ink colour
rst 16
ld a,17 ;paper colour
rst 16
...ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
This is bonkers!
I just want to check that you are muxing the background colour and border colour before the final colour output latch/register (Ie not muxing the output colour with the border colour) ?ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... muxing the background colour and border colour before the final colour output latch/register ... not muxing the output colour with the border colour) ?[/QUOTE]
Absolutely! I ... 'm muxing BORDER/PAPER after ...Weird 'semi-crash' I used to be able to make the 48k speccy do.I've always wondered about this (but I seem unable to recreate it at the moment). I used to be able to get the Speccy to display some weird screen o…
... . :smile:[/QUOTE]
[code]BORDER 5: RANDOMIZE USR 4665[/code ... you can't change the border colour or make any sound. To ...New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... 'feel', so I may use border colour or a 'number of items ... looks especially good a paper colour indicator.
I think ...New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... 'feel', so I may use border colour or a 'number of items ... looks especially good a paper colour indicator.[/QUOTE]
... try, but I suspect the border colour won't be enough. When ... happen with the border colours. Also the black border fits very well ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... , whichever goes in front should set the colour. If you're combining ... OR, I think the fruit colour should dominate.Setting the border/paper/ink colours problem[deleted]
... example given is setting the border colour:
org 23760
ld ...machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…
... ANDs out the ink colour setting the BORDER colour [*8] to 0 black ... CLS but will affect the colour should you press SPACE while ...BUZZSAW+ Demo No. 3Right, another demo of BUZZSAW+. [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_3.tap"]Joefish_Buzzsaw_Demo_3.tap[/URL] The default con…
... buffer which contained my border timing markers during development, ... the end of each colour line I do an ... can either change the border colour to mark the timing, ... of the screen, the border would flash and you' ... with the graphics and colour list that does that ...SAM emulators and save states ...Hi Is there now, or has there even been, a SAM emulator that can save/ load states? Moose
... too fast, and/or the border colour in the Cold Store won ...New version of ZXDS?Hi Patrik, Just wondering if you are planning to release a new version of ZXDS? If so, any chance you would be willing to share a possible date and…
One for me would be not to change the background colour of the lower screen to the border colour. For a while this had be fazed as I thought it was a bug in ZXDS. :smile:
PaddyHelp with Spectrum 128k reparationHi! I have the following symptoms with a 128k unit version 6U - On power on, black and white bars (one char width each), white background - Once po…
... 128K heatsink model has that border colour feature to identify bad RAM ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
[code]
do_the_redefine: and a
ld (BORDCR),a ; set border sysvar to black
[/code]
This should be "xor a".Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... a
ld (BORDCR),a ; set border sysvar to black
[/code ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
Yep nice keyreader, the border colour thing works for me. I ... , avoid repeated keys thing.
;Border colour changes every key selection, paper ... (counters),a
ld a,(border)
inc a
ld ... 3503
jp exit
border defb 0
nokey in ...Barleywood Z80 Simulator LicenceHi All, Does anybody know if it is still possible to get a Licence for this Simulator? The reason I ask is that I'm currently using it to develop a…
... of speccy / z80, but changing border colour etc... or printing a char ...Barleywood Z80 Simulator LicenceHi All, Does anybody know if it is still possible to get a Licence for this Simulator? The reason I ask is that I'm currently using it to develop a…
... of speccy / z80, but changing border colour etc... or printing a char ... about it :) The tricks with border changes to show some values ...
