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hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... using a 256-byte permutation table. How do I arrange the ... any collisions? As all the data table entries are known in advance ... -
Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…
... />
* The background data is arranged in rows of ... 41216 ;second row of background data
DEFW B2, ... HL,MODHLB+1 ;Move background data pointer
INC (HL) ; ... A,L ;row in background data table
SUB 12
LD ... -
Skool disassemblies onlineThe Skool Daze and Back to Skool disassemblies (previously announced in too many places on this forum) are now browsable online: [url]http://pyskool…
... changes include:
[b]Data disassemblies[/b]
Just like ... the machine code routines, every data block now has its own ... the disassembly page for a data block, just follow the link ... to be found in a data table at 40700, now you can ... -
Wrong-endian data table?I'm drawing up the memory map for something I'm writing. I'll be using machine code on a byte array of 256 elements, each element consisting of 64 by…
I'm drawing up the memory map for something I'm writing. I'll be using machine code on a byte array of 256 elements, each element consisting of 64 bytes.
I'm considering doing it the "wrong way round" - placing the element number in the LSB ... -
Xecutor (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005783"]Xecutor[/URL], please add the following "known errors" desc…
... the Stack Pointer to a data table after loading the game, thus ... corrupting some level data. Because of this, the game ... the original values in this table.
Fixed using POKE 63423 ... -
Hades Nebula (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0002204"]Hades Nebula[/URL], please add the following "known errors"…
... 5 due to a corrupted data table.
Fixed using:
POKE ... -
need a new method for m/c parameter assignmentI've been using a variable length function of the form: "FN a$(a$,a[,b...,z])=STR$ USR md" to search a data table and return a string result. By putt…
... md"
to search a data table and return a string result ... -
MOVE_M Object Movement Manager for BASICAs moving things around on the screen is usually the slowest part of a game written in BASIC, I've been pottering around with this routine to handle …
... been pressed and the data table rules, only returning to ... /> REM d=DISPLAY table#, a=ACTION table#
12 CLEAR ... **
DISPN_8:defw 0000 ;table start + 8
DISPLEN: ... : ;example
;movement key table (refer to KEY_SCAN key codes ... -
What's the deal with hash tables, anyway?As there's nothing in the [url=http://www.users.globalnet.co.uk/~jg27paw4/pourri/0-surc-contents.htm]Compendium[/url] about hash tables, and as I've …
... a complex key with a table of data identified by a simple ... hash keys with data keys:
[*]a data table, each record with a ... data key: 1,2,3 ... can be seen that the data table doesn't have to be ... -
Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…
... .
* IX points to Sprite Data Table (10 bytes for each sprite ... ;move IX to start of data table
ADD IX,DE ;for ... -
Anyone know the address mappings...of the hardware resources on the speccy; From the screen display address range to all the hardware control registers. etc. Where can I get access t…
... for doing sprites from unshifted data, that myself and Moroz worked ... works by using a Sprite data table beginning at 64000.
10 ... /> LD BC,10 ;number of data bytes for each sprite
;of data for next sprite
Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…
... works by using a Sprite data table beginning at 64000.
10 ... /> LD BC,10 ;number of data bytes for each sprite
;of data for next sprite
Games that are impossible to complete due to bugs!I'm trying to compile a list of Speccy games that cannot be completed because of a bug (or simply bad programming)! Here's a few... [B]Frankie Goes …
... the game but each games data was as the .tzx (Which ... located in a data table and perhaps some rogue data has crept in ...Biotoxins redumping projectI've been spending quite a bit of time between dumping STP / MIA titles at looking at the titles flagged by Biotoxin as possibly needing a redump... …
... a) to have the data more compact, which I ... have a different data structure in the actual data table, i.e ... be encoded with two alphabet table entries, say
... /> and the actual data section would look like ... having a dedicated symbol table for the pilot& ...R Tape Loading ErrorWhat, for your money, was the best and worst loading routine on a Spectrum game? For me: Best: Bugaboo - totally cinematic, built up a real sense …
... as well as a huge data table in the preloader feeding {base ... , step and length} data to the hyperload.
Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... have a different "length" of data. Presumably those codes for the ... are held in a 16bit data table somewhere and loaded into HL ... enter the screen. (Finding the table would also be quicker than ...Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... browser to find the relevant data table. It starts at #711C = AA ... 16 bit table for the start address of the data for each ... an easier way of altering data rather than poking/setting each ... ? Could I poke the new data into the relevant locations completely ...Making Horace play fair!Hi again Has anyone created a new or twiddled version of Hungry Horace that has a more fair screen 3 and 4? Or a version of the spiders where the f…
... />
There's also a data table at 6FD7h, with 8 bytes ... they reverse-engineered the entire data format in 1994...Z80 compressorIs there one available? Is it any good? Peeps have been suggesting we should look into this, so here's a new thread! I'd do the compressor on the …
... ahead and behind the current data for repetitions and changing frequencies ... inhibit streaming short snippets of data from the chunk?
data, table is of the form
table when you reach a leaf ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... />
[QUOTE]2. Suitable data compression for sprites and level ... that you can randomly seek data structures and selectively unpack ... is marginally larger than some data table. There are however, also ... how to reclaim data from the rotation table. I'm not ...Gunrunner game failureHello! In this game, when I'm at level 6, a fault occurs. It is the frozen image.:???: Here is the file: [url]http://www.megaupload.com/?d=WHQHDTD…
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... linewrap routine:
[code]
table: equ 64072 ;address-32 of ... character widths table
ch_add: equ 23645
data table is needed as well, which ...Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... linewrap routine:
[code]
table: equ 64072 ;address-32 of ... character widths table
ch_add: equ 23645
data table is needed as well, which ...Help Wanted: Playtest BUGFIXED games!There's an ongoing effort at WoS to fix classic Spectrum games with serious bugs that make them impossible to complete, crash frequently, etc. More d…
... interrupts. Afaics there's a data table for the enemies, 5 enemies ... can do. Either shift the table or shift the room no ...Ninja (improved BUGFIX)This is an improved BUGFIX for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0003433"]Ninja[/URL], please replace the "known errors" de…
... screen are stored in a data table starting at address $e470, using ... the last byte of this table. If there are 5 enemies ... room number is replaced with data about the 5th enemy. When ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... : ld hl, $cbcd ;large ball data (small ball at $cbd3)
table (high byte of ball graphic ...Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
Wouldn't the simplest method of cheating just be for the cheater to use the emulator's data table to find out where and how the score is held, and POKE in whatever score they want?Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
..ok then... so... er.. anyone willing to post up an updated assembly that is complete then, with the modified labels and the necessary 192 Word long data table?...Mazes and Tremaux's AlgorithmI've done a version of Tremaux's maze solving algorithm which solves my current test maze with 400 junctions and 715 connections in a reasonably quic…
Arjun posted a link earlier to a page with descriptions of numerous maze types and solving algorithms. I didn't actually use Tremaux's Algorithm in the end because, although it's simple (see second code segment below), it assumes that all available forward ...Rescue by Mastertronic Debugging QuestionJust wondering if anyone knows how to move the spawn points of the enemys in the game Rescue by Mastertronic made by ste cork using the debugger in s…
... .
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The data used by the routine is ... are selected each time, the data table is 115 bytes long and ...
