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Goody - another game that was supposed to be colourAfter the success with Outrun Europa ([url]http://www.worldofspectrum.org/forums/showthread.php?t=39143[/url]) I decided to search for more games tha…
... appropriate candidate I decided to check Spanish game Goody ... />
Graphics have also attribute painting code (disabled in the ... game), however the attribute table seems to be absent in the ... and placed some temp attribute table filled with repeated pattern ... -
Attribute-based 3D?I remember seeing some demos where an attribute-based map was explored in some sort of flying mode. No idea if the whole thing was pre-calculated or …
... seeing some demos where an attribute-based map was explored in ... , can we have games similar to Minecraft? I didn't post ... a 3D attribute map editor and an engine to be able to explore ... -
Image To ZX Spec 1.3.3 (New Feature - Attribute Error Constraining)I hadn't expected to release another new version so soon, but here we go: Image to ZX Spec Changes ------------------------ Version 1.3.3 [LIST] [*…
I hadn't expected to release another new version so ... we go:
Image to ZX Spec Changes
------------------------
[*] Added Character Conversion (image to text).
[*] Fixed long standing ... -
Quickest way to fill the attributes using LDIRI'm looking for a small routine to fill the entire attribute area of the memory with a single value, I've used LDIR in the past, but forgotten how to…
I'm looking for a small routine to fill the entire attribute area of the memory with a single value, I've used LDIR in the past, but forgotten how to do it... :confused: -
Asking for help: ZXBC to ASM routine translationHallo, In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler [code] sub light(x as uinteg…
Hallo,
In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler
[code]
sub light(x as uinteger,y as uinteger,intensity as ubyte)
dim adr as Uinteger
if x -
Migration to NemoBus ideology[B][U]Migration to NemoBus ideology.[/U][/B] Unfortunately all modern western hardware design is based on an outdated ideology bus, which was establ…
[B][U]Migration to NemoBus ideology.[/U][/B]
to choose the address input-output ports. ... these problems. Solution is to use the ideology of ... These circuit solutions allow to a large extent solve ... I/O ports. Thus, to a large extent will ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... current focus to that XPD.
To know how to do this ... load into as a start address. Interestingly code is loaded from ... access, so we need to change this to a "location:filename" for ... this statement tells the spectrum to jump to the memory location of ... -
Converting games to disk: difficult loadersThis thread has an spanish version in foro speccy, but I haven't gathered enough information to overcome my problems. I've been converting some game…
... haven't gathered enough information to overcome my problems.
... routine jumps to an address specified into the miniblock (usually to load ... the program and where to jump, to do a standard loader ... ... until eventually you get to the loading routine. Jumping ... -
Hidden message in Down To EarthJust found this in the Down To Earth code. I like reading these old messages left behind by programmers. [code]WELCOME TO ORIFICE Credits Darren B…
... by programmers.
[code]WELCOME TO ORIFICE
... a go
Hellos to...
Paul
Who Wants To Live Forever....
Graham ...
So write me (normal address),
including a photo, large ... -
Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
... want to go, you can add an attribute byte to ... UDGs are drawn, to try to minimise screen tearing.< ... character to give a full 16-bit address of ... each UDG, allowing for multiple character sets to ... horizontally and/or vertically to enable scrolling in ... -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... and at reduced attribute size down to just 4 x ... program written explicitly to control the new attribute modes was [I ... to provide a SCART connectivity and to address the issue of attribute ... colour clash, not to re- ... -
How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …
... 60000 ; some high address
;; entry address (probably 23760) is ... ; addr of code to reloc, relative to 0...
add ... bc,.reloc_len ; length of code to relocate
ldir ; perform ... -
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…
... just by changing the attribute byte you need to make sure the ... changed, a counter is attatched to each attribute cell. A count can ... to that attribute byte in the display area is set to the present attribute ... -
Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…
... I decided to try to add a pause key to Arkanoid since ... of keyboard-reading instructions related to the title screen, so ... was ready to accept input.
Address 0x84C2 contains ... Speedlock decrypter also uses this address once; just continue through ... -
Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…
... ;
PUSH HL ; no need to push HL IX BC
ADD HL,DE ; correct attribute address
ADD IX,DE ; so ... -
JSW2 - Game Loader DifferencesThere are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it …
... any room you wish to be 'teleported' to.
Please ... JSW2, it was necessary to convert JSW2 to a 128K program. There ... piece of basic containing assembly to headerless load the game code ... fake header to load the 'basic' at a higher address, and then ... -
Get starting address of gameHi, Anyone know how to get the starting address of a game? I've looked at the TZX format and couldn't see anything obvious. I'd like to load the…
... /> Anyone know how to get the starting address of a game? I ... .
I'd like to load the tzx file and ... -
Collision detection for interlocking shapes[SIZE=3][FONT=Calibri]I?m looking for some advice as I?m not sure how to resolve the following problem. I have an in memory structure that holds info…
... [SIZE=3][FONT=Calibri]Screen Address[/FONT][/SIZE]
[SIZE=3 ... 3][FONT=Calibri]22528 ; starting address[/FONT][/SIZE]
[SIZE= ... ]32 ; Add 32 to the starting address (so directly below the ... first thought was to create a list of attribute address for the ... -
A change in ZX Spectrum Files address siteHi, Doing a maintenance of my fanzine ZX Spectrum Files page, I've made a change in the direct link to my web. From now on, the new address is as fo…
... direct link to my web. From now on, the new address is ... -
Input magazines 1 to 39 in 3 binders - ?12 delivered in UK[B][NOW SOLD][/B] :) First 39 issues, held in 3 binders: [img]https://dl.dropboxusercontent.com/u/15218813/Input1.jpg[/img] [img]https://dl.dropbox…
... /> [LIST]
[*]The plastic strips to hold issues 12 and 36 ... vary in condition from fair to very good ([i]most are ... ]it will cost me ?6 to post![/i]).
Free ... . Will only dispatch to a UK address due to the heavy weight.
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…
... video memory address generated by the ULA (who wants to read the ... screen.
In detail, the address which is actually read by ... = A15-A8 of the ULA address
A7-A0 = the R ... each cycle (order: bitmap, attribute, bitmap+1, attribute+1), while in the ...Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…
... /> I would like to create an animated attribute reveal in machine code ... diagonal animation of attribute squares moving from top left to bottom right ... the actual attribute byte. I have a screen shot to illustrate that ...Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... /> ;Use wrap-around attribute map to allow vertical attribute-based scrolling.
... /> push hl ;save data address
ld a,b ... /> pop hl ;retrieve data address
jp print_char_hl_de ;draw ... /> ld e,a ;add X to address
ldi
Using 256 color emulator to remove color clash & update graphicsWhat are your thoughts in using 256 color emulation (like [url]http://www.emulatronia.com/emusdaqui/spec256/download-eng.htm[/url] ) but limiting the…
... [/url] ) but limiting the improvements to using the original color palete ... the ZX palette with no attribute restrictions ?
And what ...Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... performed are from the return address of the interrupt handler. ... saving code will obviously need to be consistent between emulators, ... is the only snapshot format to specifically contain a 'halted' ... operations of peripherals due to trapping of addresses well ...Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... Speccy, instead of trying to link up machines, so ... practical solution would be to simply produce a split ... . When the Z80 writes to memory, that write is ... How about applying that write to an external RAM chip, ... second machine's ROM address space, and force it ...misunderstanding screen addressingHi I am just reading mastering machine code Toni Baker: [url]ftp://ftp.worldofspectrum.org/pub/sinclair/books/MasteringMachineCodeOnYourZXSpectrum…
... This gives us the address of the “print position ... screen, and also the “attribute byte”. For example,
to
the diagram, the first two digits of the address ... This gives us the address 40A4.
Try ... 4. This gives us the address 40A4.[/QUOTE]
byte to screen eventI have another question regarding assembly routine in MMCOYZXS by Toni Baker page's 87-88 [QUOTE]21A440 LD HL,40A4 11083F LD DE,3F08 0608 LD B,08…
... the character @ 0x3Fxx are written to the screen location 0x4xA4 is ... when stepping through it seems to happen at:
24 INC ... the 'HL' registers that indirectly address the screen location are passed ...Spectrum screen layoutSeeing the thread on displacement I was wondering why the spectrum had the stupid screen split into three sections and the addresses for each section…
... />
I understand having the attribute clash and the table at ... why didn't they just address the screen from top to bottom.Image To ZX Spec 1.4.0 Released[IMG]http://mirror.viperfang.net/silentdevelopments/temp/imagetozxspec140.png[/IMG][IMG]http://mirror.viperfang.net/silentdevelopments/temp/imagetozx…
... improvements to GigaScreen (102 colour) image quality.
[*] Added GigaScreen Attribute options ... /> [*] Usability improvements and toolbar added to UI.
[*] Image quality improvements ... />
Website updates and source to follow.
