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help in byte mirroring.I need some help. What is the best way to mirror the byte? (for ex. 10010011 -> 11001001) I mean, if there is a simple way to do it (may be with OR, …
... table of 256 values that refer to the mirror ... of their opposite - ie entry 0 in the table ... mirror you use the unmirrored byte to reference to the table ... to get its mirror.< ... you have the unmirrored byte in A and want ... -
help in byte mirroring.I need some help. What is the best way to mirror the byte? (for ex. 10010011 -> 11001001) I mean, if there is a simple way to do it (may be with OR, …
need a Table of 256 bytes stored on a 256byte boundary
on entry: a=byte to mirror
FlipByte:
ld h,TableAdress/256
ld l,a
ld a,(hl)
ret -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... priority that is the "mirror" area. By arranging ... SP1_ID_MASK2_NR (mask 2-byte no rotate) for ... /> #asm
._sprdrawftbl ; table of sprite draw functions indexed ... the sprite is 1-byte or 2-byte, "height" and ... -
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..…
... written to a further table starting at #6CFC and ...
1st byte horizontal position of enemy
2nd byte vertical position of enemy< ... bytes above)
5th byte Graphic. This will be ... 6th,7th,8th bytes mirror the above relating to the ... -
Skool Daze disassemblyWhile developing [url="http://pyskool.wordpress.com/"]Pyskool[/url], I've also been putting together a disassembly of Skool Daze and Back to Skool, m…
... lookup table (one entry per tile column)
page 182: 256 "mirror ... +1[/I] bytes (the first byte being the width). -
how to reflect a byte's bit-pattern in assembly?I'm trying to use 16 pixel-wide graphics which are symmetrical around the vertical, i.e. if the left byte is 01001110 the right byte will be 01110010…
[quote=Metalbrain;329603]Why so complex?[/quote]
Oops. Didn't realise it was an optimisation challenge in how to mirror a byte in order to build a table :D -
Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…
... .5K shift right & left table for that (or a 1 ... .75K rotate table and mask it to get ... memory by using a 256 byte mirror table (or generating one as needed ... -
shifting spriteshi. have anyone experience with shifting sprites by table ? some neat tricks ? i don't want to see complete code (really don't want, it trashes thr…
... take up. A table of pre-rotated byte values (that you ... whole shifted byte, so that's 4K for the table. Pre ... to move to a byte-position, then switch to ... similar to using a mirror look-up table, and having half ... I've settled for byte or 4-pixel positioning with ... -
shifting spriteshi. have anyone experience with shifting sprites by table ? some neat tricks ? i don't want to see complete code (really don't want, it trashes thr…
... similar to using a mirror look-up table, and having half the ... with shifted sprites and shifted byte tables. Maybe you can take ... -
Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... the movement and a 256 byte mirror table, the second set of sprites ... -
Sinclair Programs uploaded.I've just uploaded a ZIP containing all the 'Sinclair Programs' programs and the instructions for each one. (Well all the ones from 'The Type Fantast…
... Osborne - Apr'84
Free Byte - FJ Tew - Mar'84< ... Ian Dando - Oct'84
Mirror Characters - Graham Walkden - Nov'83 ...
Mirror Patterns - Graham Walkden - Nov'83 ... Newby - Jul'84
Periodic Table - Christopher Ede - Oct'83< ... -
Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?
If anyone wants to be really smart, come up with a PASMO Macro that generates a 256-byte mirror table.
I can imagine resorting to Excel for that, myself. -
Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?
... Macro that generates a 256-byte mirror table.[/QUOTE]
I can't ... -
ZXOOM, does it work?Another game now on the run, but I got some trouble. I've tried to make it run with Spectaculator as well with ZX Spin but it clashes once loaded and…
... />
3. According to the table, depending on the element cell ... 4 / 4 - upside down and mirror image. Sprites, which are not ... that in any coordinate display mirror.
3b. In ... familiarity stored in the attribute byte in the virtual screen is ... -
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…
... that gets overwritten is a byte mirror table. If you walk right first ... -
Mirroring UDG'sJust wondered is there a quick an easy way of mirroring UDGs (byte values)? i.e. BIN 11110000 becoming 00001111 etc.
... easy way of mirroring UDGs (byte values)?
i.e ... a lookup table.
[CODE]
function fastcall mirror (number as ... -
SpritesYes yes, I know this has been hashed over plenty of times before, but... I have knocked up a quick tiling routine which works with my back buffer co…
... to look up each byte in the mirroring table. The timing difference ... table. Whichever direction you want it to face, you have to mirror ... -
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 …
The table is typically aligned to a 256 byte boundary. Here, if let ... you have the high byte of the table address in B, you ... also need to reverse the byte order, therefore step over the ...
As for the mirror table, you can generate one yourself ... -
Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…
Use a 256 byte, page aligned table that contains the mirror image of the relevant byte. -
Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…
... Use a 256 byte, page aligned table that contains the mirror image of ... the relevant byte.[/quote]< ... build the table.
To get the mirrored byte in ' ... and 'inc h' to my table. Or something like that.
Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…
... , but very slow compared to byte mirror table.
I've optimized ... routine above to build the table. It's as concise as ... /> org $8000
ld hl, table
ld b, 0
org $c000
table:
[/code]Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…
To get the mirrored byte using the table is just 21 t- ... byte to mirror in 'l'
ld h, $c0 ; hi-byte of table< ... br /> ld a, (hl) ; a now holds mirrored byte ... forums/discussion/comment/973421/#Comment_973421]table builder above[/url], from ...Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…
... ]
Testing if the byte is $ff or $00 and ... 333.
Using the 256 byte mirror table takes 333 T-States for ...Mirror???? Help????Has anyone a solution to the following adventure game: Mirror (Zerkalo) - a game by Artwork
Has anyone a solution to the following adventure game:
Mirror (Zerkalo) - a game by ArtworkINVASION OF THE BODY SNATCHAS - Obscure High score table messages...After posting a message about this game on the 'first three games you bought' section, I got thinking more about this game. When you typed certain m…
... messages onto the high-score table on this game, it would ...Z80 Emulator Source?Found a link to this on comp.sys.amstrad.8bit. i havent been with the discussion long but supposedly this is the source for a Z80 emulator. Forgive m…
... /> ;instruction jump table
jumpb .equ 0c3h ;byte jump entry
ins_call_c_nn:
ins_dd: ;2 byte instructions: ix related
ins_sbc_a_n ... :
ins_call_pe_nn:
ins_ed: ;2 byte instructions: miscellaneous
ins_xor_n:
STP: Computer Cookery 1 & 2 - Bug ByteI'm 99% sure these two titles are actually The Computer Cook Book (Bug Byte) that is listed in Infoseek. However, The Computer Cook Book is in fact …
... The Computer Cook Book (Bug Byte) that is listed in Infoseek ...Wanted Software to Swap for Rom Carts ;)Wot I have for grabs is 4 Complete ROM Carts which I will swap for my wants below Horace [url="http://www.cornishdavey.dsl.pipex.com/4.jpg"]http://w…
...
Bug Byte
Fridge Frenzy Bug-Byte Software Ltd
Cosmic Pirate Byte Back
Death in Russia ... Caves
MacMan's Magic Mirror
Magnum Pack
Missile ...
