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Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... />
I have used a look up table for the char address, and ... will work at speeding up the drawing of the sprites ... , dont let this get messed up
LD ... /> LD HL,0FE00H ;BUILDING UP A TABLE WITH
LD BC, ... -
Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... way is to use a look up table I suppose that holds the ... -
Fast LogsAnyone know of a fast ln function I can steal? The ROM function seems to be hideously slow. I wrote a look-up table dirty and less accurate sin func…
... .
I wrote a look-up table dirty and less accurate sin ... my maths isn't quite up to writing one for natural ... -
Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…
... the appropriate amount from the look up table using the t-state as ... index.
My contended table is correct.
My t ... -
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 …
... doesn't require an address look-up table. In doing this we need ... -
maths help 'JSW'JET SET WILLY uses a lookup table to play the opening tune (Moonlight Sonata) this is the table [code] 34299 DEFB 81,60,51,81,60,51,81,60,51,81,…
... SET WILLY uses a lookup table to play the opening tune ... )
this is the table
[code]
34299 DEFB ... this tune the notes go up in groups of three (1 ... first 3 notes in the table are 81 , 60 , 51
look up table. -
i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…
... I use a very handy look up table in the manual itself, LOL ... -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... I have also created a look up table for the "xpos" ... /> jr horizontal
up:
; Y Counter
... FC00, get the offset table horizontally
LD ... ld hl,0FE00h ;Building up a table with
ld ... -
Help required to calculate screen addressesDoes anyone have some code that calculates the screen address one pixel below the given address ? Is it best to use a lookup table ? Any examples of …
... that. As long as the table does not start on an ... the second method for a look-up table in the tutorial is much ... -
If you had an I.Q of 160, you would....1) be 16 years old 2) be in U.S. 3) post 6 new boring topics everyday on a forum dedicated to a brilliant home computer of the 80's 4) have Asperger'…
... I can easily split it up into several segments and come ... up with the answer fairly quickly ... ... to create it's own look-up table for large numbers.
Optimisation Needed! Is this the Fastest way to copy bytes from screen and back again?I have the screen address (say 0,0 i.e 16384) I want to copy 4 bytes wide by 32 bytes high from the screen to an area of memory. I then want to cop…
... (two pixel step, maybe smart look-up table)
but basically i ...how to pass arguments from Basic to MC ?can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this: PRINT USR xxxxx, arg1, arg2:…
... the image address from a look up table...
...then draw the image ... - 0 is first image in table
60 PRINT USR 30000 ...Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... way is to use a look up table I suppose that holds the ... HL
FAST: LD H,TABLE/256 ; 2 / 7
ADD ... another 192 bytes table 64 bytes later, at TABLE+256.
< ... 256 byte boundary, and this table is filled with the pattern ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... want them cleared, in a look-up table. Then, in your main code ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... want them cleared, in a look-up table. Then, in your main code ...Vector`scan anyone give me any advice or a description of vector`s... don`t mean line drawing vector`s but directional vector`s, I think there called vector`…
... currently using sin and cos table`s as a way of ... tables is to use a look up table of values instead of calculating ...Vector`scan anyone give me any advice or a description of vector`s... don`t mean line drawing vector`s but directional vector`s, I think there called vector`…
... tables is to use a look up table of values instead of calculating ... ]
I got a table of sin and cos value ...He's back......and he's got a new trick! AY Chip here. I've been away far too long. I would like to announce 'HatStand': for no adequately explored reason, I h…
... the high byte for a look-up table of addresses. The hardware supplies ...plotting and rotating wireframesCan anyone point me to an example of plotting a (2d) shape and rotating it in basic. Unfortunately my trig was never that good and I want to get a h…
... , games typically replace these with look up table based functions.
I also ... the draw function could just look like this:
[code ...Sinclair Infoseek ArchiveLike most of us here, we think this is a brilliant site, and the Sinclair Infoseek tool has got so much content it's unbelievable. All the informatio…
It won't do you much good.
Most of the content is generated on the fly so its not as if you could just have a big look up table which is what you actually want from the sound of it.
ADJBPacking numbers in as least memory as possibleI am writing some code for drawing vector lines etc. on the screen. These need to be stored in memory and I want to pack them in a smaller area as po…
... plotting, you could use a look-up table.
For example, if ... to hold each, and a look-up table which matched those 4-bits ... three unique values, so your look-up might be:
#0 ...Packing numbers in as least memory as possibleI am writing some code for drawing vector lines etc. on the screen. These need to be stored in memory and I want to pack them in a smaller area as po…
... plotting, you could use a look-up table.
For example, if ... to hold each, and a look-up table which matched those 4-bits ... three unique values, so your look-up might be:
#0 ...SAM Games that never wereIn another thread on Multiloads there's been a bit of chat about US Gold's infamous statement about porting Strider to the SAM (which tbh if they had…
... and a switchable CLUT (colour look up table)) and that's a graphics ... could all be made to look like Amiga games as your ... high res but making them look mint, The Great Escape too ...Isometric games map formatI'm interested in your opinion: What is the best way to store map data for isometric games ? SOmething like Head over heels ? I read in one place t…
... (+-X, +-Y, +-Z using a look-up table)
Count = maximum run of ...Sprites...What is fastest way for drawing masked sprites at any screen position without using preshifted data ? I want to use it for isometric view game... li…
Simple - use a look-up table to shift the sprite data ... draw it.
The table consists of 8 sets of ... (the second being 256 bytes up from the first).
table to 3.5K. As you ...How to convert hex bytes to .. in assembly?I hadn't a clue what to put in the title so..., I have in memory 3 hex bytes #10 #34 #50, e.g.,[code][size=2]#6400 10 , 34 , 50 ; hex 25600 16 , 52 …
... />
Barring that have a look at RLD and RRD to ... then there's always a look up table.One for the demo codersOn this occasion I forgot I had already asked the exact same question in another thread.
Look-up table isn't fast enough (~29t per byte)?One for the demo codersOn this occasion I forgot I had already asked the exact same question in another thread.
Look-up table with 256 or 128 entries ... in look-up table and get new attribute from table.
Look-up table will ... something like:
[code];look-up table aligned to 256 bytes, MSB ... prerendering' - 128*steps of fade-up) or will be really slow.One for the demo codersOn this occasion I forgot I had already asked the exact same question in another thread.
... , but you'd need a look-up table for each frame and a ...16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…
... end of the close stream look-up table if the stream was already ...
