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New projectHello, you can see my new project for Spectrum in this link. I think that I finish it in few weeks. I hope you like it [URL="http://www.youtube.co…
... of it being one screen at a time then the upward scroll ... -
New projectHello, you can see my new project for Spectrum in this link. I think that I finish it in few weeks. I hope you like it [URL="http://www.youtube.co…
... of it being one screen at a time then the upward scroll ... -
Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... high byte of start of screen buffer; 192 used to test the ... /> ; Map DE to pixel in screen buffer (HL)
LD L ... , add 16384 to point to screen buffer
LD A, H
IX_TABLE:
; Bit positions within screen byte to set
.BYTE ... -
New Game: Antiquity JonesYeah - corny I know, but ran out of good ideas for a name so left it at that. Its a good old platform against the clock type game, with a few neat i…
Like the game. The only problem I've had the first time was that it locks up randomly at a screen.
The second time I've used snapshots just in case. :) -
Saving space using procedural graphicsAfter spending several hours playing around with various packers to squash the Alien8 test screen$ it occured to me that maybe bigger space savings c…
... RAM with a huge screen buffer where each pixel has ... pixel (48K for whole screen). I draw solid circles ... a value to the buffer). After a picture is ... the buffer, it is converted to normal ZX Spectrum screen ... for 48K with low resolution buffer - 128*192 will ... -
Anti-piracy measures on Speccy games - What games have it?I was looking at the JSW card which gives you the grid location system for protecting the game against simple forms of copying, and I know that ATF h…
... well that Durell reward screen.
The first time I saw him ... -
Anti-piracy measures on Speccy games - What games have it?I was looking at the JSW card which gives you the grid location system for protecting the game against simple forms of copying, and I know that ATF h…
... well that Durell reward screen.
The first time I saw him ... -
How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…
..Actually it was the 6k screen buffer in the Mole Rat source ... having object positions for multi screen - I guess you need to ... what I can get each screen down to. I think I ... -
How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…
... ]..Actually it was the 6k screen buffer in the Mole Rat source ... -
BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... lots of sprites on the screen at once, but only one ... each row of the screen at a time. In reality it's ... every few lines of the screen display. That took some intense ... -
Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... page and put sprite on screen directly from the page. This ... when you do not use screen buffer for output and print directly ... on screen.
Other method ... is use second screen as buffer - while one page on screen - you print ... -
Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... "snow" effect on the screen all the time because the Z80 writes ... -
The Hobbit MovieAnyone seen it yet? I heard a review on the radio this morning and the guy was saying it was really dragged out...the dwarves introducing themselve…
... front of a green screen the whole time. The 3D was also ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... , I will take some time to compare it with existing packers and ... suggest you use Ticks for compare time with other packers.
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
[QUOTE=antoniovillena;672225]I suggest you use Ticks for compare time with other packers.
[url]http://www.worldofspectrum.org/forums/showthread.php?t=41709[/url][/QUOTE]
Good idea!Screens and BasicA question about the ZX screens. I am using software to convert my own art and drawings to the ZX Spectrum. I have some tools to change .jpg files in…
[QUOTE=na_th_an;684200]But screens take up too much memory, almost 7Kb each. You barely have 40K to play with, so more advanced methods are needed.[/QUOTE]
But if he's only dealing with 1 screen at a time then it's no problem.ALIEN 8 Loading screenHello again, after recently seeing [B]Redballoon's[/B] excellent alternative loading screens I was inspired to have a go myself. I was never kee…
... lines when designing a loading screen.[/QUOTE]
Exactly - it ... . It was very good screen for its time and good use of ...Surely not Buzzsaw+ Already..?But this game has had such a short development time, how can this be? Free version of [I]Buzzsaw+ (Foxton Locks Mix)[/I] available here: [url]http:…
... the start point in the buffer each time. Although I can lengthen ... have a loop anywhere occupying time that is otherwise needed for ...New Loading Screen for "Game Over"In the first post of these Spanish forums, quite impressive as well! [url]http://zonadepruebas.com/viewtopic.php?f=4&t=3284&p=19882#p19882[/url]
He's the same guy who made an alternative screen for Where Time Stood Still, posted here some time ago.
Well done!128k Basic used much ?Hi - I was wondering if there were many,if any, games programmed in 128k basic? I was also thinking of doing one myself as I wish to make a text heav…
... ram disk, but for a screen buffer. Actually, I'm sure there ... .org/infoseekid.cgi?id=0008667]screen machine[/url], you can use ...Faulty 48K Issue 3 motherboardHi I have a faulty Issue 3 motherboard and would appreciate it if somebody can steer me in the right direction of where to begin with the fault find…
... symptom is that the whole screen is black with switch-on ... , just a completely uniform black screen. I removed the upper RAM ... /> -If you have black screen, it's time to use the scope ... /> If you still have black screen now come the hard work ...Bad Loading screens.All this Avalon and Dragontorc talk got me thinking about 'Sorcery' that was on the Softaid compilation. Then I had a glance at 'The Pyramid' [img]h…
... /> When I saw this screen the first time I loaded the game ... ://www.worldofspectrum.org/showscreen.cgi?screen=screens/load/s/gif/Spitfire40 ...Siege RTS projectActually, it's but pre-prototyping: an upside-down tower-defense version of Sodov ([url]http://www.worldofspectrum.org/infoseekid.cgi?id=0004618[/url…
... Raven). The engine uses linear screen buffer (as Black Raven does). Only ... 48K screen used (in Black Raven, only ... the second screen is used).
With this ...Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... still have to redraw the screen at whole character positions ... bottom most characters of the screen invisible (so I understand), ... then pixel scrolling the screen around within that clipped area ... enough memory for a second screen buffer so it can be done ...Massive dungeon for ZX Spectrum at last?Even in the Czech Republic we can make new ZX Spectrum games :-P. [url]http://www.oldcomp.cz/download/file.php?id=143[/url] (Small demo only, I am …
... screen, 1/4 th only
if there is enough CPU time ... avoid on a small screen.
but very time and space consuming ...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... to 64 colours on screen at one time for no additional CPU ...
