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smooth movement in basicWas trying to figure this out myself but i would like to be pointed in right direction now :-). How do I make something move in Basic without gettin…
... 'd expect that a lookup from a 24x32x2 table would indeed be ... -
pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... might want to use precomputed table with euclidean distances rounded down ... makes the amortized time the lookup takes constant. However, as ... an upper bound on the lookup and turns it into constant ... case, or 2 if euclidean table was used). Therefore, one might ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... is an offset into a table (C++'s vtable) or is ... added or removed through dynamic lookup of the message code) depends ... -
Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... done on the fly by table look-up. The special case ... executed that doesn't require table lookup.
The rightmost column ... -
That painter thing..I'm struggling to think of a non clunky way of detecting when a 'box' has been surrounded and can be highlighted, like in the pic: [IMG]http://i1142…
... by having a separate mini-table for the centre box. So ... . To simplify the main xref lookup the list could be a ... get the entry. The mini-table would just have a list ... -
mirroring bitsIf I have a string of 1408 bytes, each of which has one bit 'b' set, what's the shortest way of mirroring that string, so that each bit set at positi…
You can use an 8 or 16 byte lookup and mirror each half of the byte separately. (16 possibilities for a 4bit half-byte, you can pack 2 into each byte for an 8 byte table, 16 bytes otherwise). -
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…
... basically two Pearson hashes, a table lookup and a XOR - with 128 ... -
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…
... with a 768-value permutation table I was still getting at ... an end marker in the table so I'm not counting ... I can do a direct lookup to the exact record for ... no luck reducing the hash table, as some of the keys ... -
Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…
... are first used as a table lookup in HL, then 8 ... are replayed from the table. Then the lower 3 ... 7kHz. You could lengthen the table entries, or repeat them, ... sample rate. Maybe the table could be tweaked for more ... do actually replay each table entry two or four ... -
Tile engine and slight colour flickerOver the past few nights I've been working on a simple tile game engine for a rock fold game I'm making. While all is going surprising well I've not…
... ,screen_table ; Moves pointer to screen table (visable address of each pixel ... />
Made by screen table lookup a bit bigger to include ... -
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
Here's my table lookup version of PIXADD ... Base address of pixel address table (0-175)
LD ... ADD HL,DE ; HL = table row address
EX DE ... ,HL ; DE = table row address
LD A ... -
maths questionNB this will probably show what a tragically low level understanding of maths I have, but hey ho :-) for some reason the other day I suddenly remem…
... use a cordic algorithm or table lookup to get the answer.
ZX-Assembler file handling concept[QUOTE=clausjahn;777075]Dear readers, At this time, it's a good time to ask you, the future users, how to implement the file usage. Let's suggest so…
... wanted to have a table of offsets instead (not ... of bytes when the table size is large and ... in any order in the table --- your previous snippet ... Presumably with a slow lookup as in your example CodeR ... TableRoutines first. If the table is the only place ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... suggestion of "combining" pixels using table lookup...
OK, let's ...Mirror tableCan anyone help with a byte mirror table? e.g. so you can look up a byte of a left-facing sprite and return the correct right-facing value. There …
... appear at the end with lookup tables and excellent coding by ... them together to make the table and filp routine. There was ... mirroring of sprites with a table.Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... table, while 2.2 already has this msge. But the longer LOOKUP ... pointed to by the main table, and the English version is ...Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
... do quick multiplication. It uses lookup tables to get quick access ... back and of course the table of squares has to be ...Database model ZXDBRecently, I have been trying to figure out how to provide my contribution to whoever takes over WoS archive rework next... So I came up with this: …
... especially given that a caching table type solution will never, ... trivial operation. A simple hashmap lookup is enough. Remote communication with ... 'm talking about caching entire table contents, not query results. ... a data structure (from one table at a time) is ...z80 Helper?When you are programming with z80 do you get 'lost' you are in the middle of making a routine and you can't remember which registers are holding val…
... is being used to lookup a jump point in a redirection table.z88dk sp1lib with fzxThe numbers dont seem to display properly? fzx by itself works [quote] // for targets supporting fzx // zcc +zx -vn -startup=31 -O3 -clib…
... ]
The lookup function uses a table that maps keypresses to ... it also uses the same table.An appeal to preserve InfoseekID compatibility!Instead of worrying about competition from other Spectrum sites, Martijn always supported them. He actively worked together with other sites to help …
... new ID appears in a table for easy lookup might be handy.An appeal to preserve InfoseekID compatibility!Instead of worrying about competition from other Spectrum sites, Martijn always supported them. He actively worked together with other sites to help …
... numbering systems in the same table.
00001234
10001234 ... - so you then have a lookup on the url if a ...An appeal to preserve InfoseekID compatibility!Instead of worrying about competition from other Spectrum sites, Martijn always supported them. He actively worked together with other sites to help …
... numbering systems in the same table.
00001234
10001234 ... - so you then have a lookup on the url if a ...An appeal to preserve InfoseekID compatibility!Instead of worrying about competition from other Spectrum sites, Martijn always supported them. He actively worked together with other sites to help …
... numbering systems in the same table.
00001234
10001234 ... - so you then have a lookup on the url if a ... backward compatibility, no need for lookup tables, no need to affect ...The point of IX+1 IX+2 ?the numbers that you can add-on to IX and IY seem hardcoded, so I dont see the use of that feature? any examples of the use of IX and IY plus number…
... to invoke is available through table lookup. That's why this sort ...A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... part of the ASCII lookup to print the ... br /> [code]
KeyCode proc Table:
; Key Width ...
Len equ $-Table
Count equ Len/Size ...
PrintKeyWords proc Table: ; This table is read-only and ...Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... routine at $22AA with a table lookup.
If you ... /> ; . . . . . . . . . . .
; Calculate Pixel Address using Table of Display File Addresses
ADD HL,DE ; HL = table row address
EX DE ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... arbitrary row, always using a table lookup for the row address
table (next address = current address + ... 2)
pop hl ; current table address
inc l ; this ... ALIGN 256
; screen address table. This must be 256 byte ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... arbitrary row, always using a table lookup for the row address
table (next address = current address + ... 2)
pop hl ; current table address
inc l ; this ... ALIGN 256
; screen address table. This must be 256 byte ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... .
sprite8x8caAlwaysLookupRow uses a table lookup for every row of 8 ...
