[QUOTE=aowen;170862]
RE: 256 colour graphics/bigger screen resolution:< ... pretty much anyone can come up with something that looks ok ... this display would be a byte per pixel. A doubling of ... />
I wouldn't call 256 colours on screen at once ...

... After loading, just open up your tape browser and point ... SPACE and then load up the instrument samples by ... And original thread to read up on the details:
... provided a stolen volume table from the ATARI ST ... four-bit samples in a byte, this means all of ...

... screen, I`ve made a sprite code table here [url]http://www ... TOP TO BOTTOM
; F0 = UP UP/DOWN ENEMY 2.80 GAP ...
; F1 = UP UP/DOWN ENEMY 2.20 GAP ...
; F2 = UP UP/DOWN ENEMY 2.00 GAP ...
; F3 = UP UP/DOWN ENEMY 1.80 GAP ...

... around with rotating sprite images (very nice) and made up a simple ... 2-frame sprite and a new ... neither the screen$ nor sprite is showing up in the resources in ... .
Anyway these are the byte values from the pixels for ...

... 5946 bytes ($173A)
Possibly 256 more bytes available for map ... found the map table. 58 screens.
Map Table
Start $6E77 ... of map in screens, 4th byte is starting screen, 5th and ... as before.

Level table address set
ORG $71BB ...

... !

Here's the table

9030 F0
2 bytes each. 1st byte distance. 2nd byte direction (FF=up,01=down)

... to fire down (or up) instead of to the right ... a table at #73F4. 1st byte is tile, 2nd byte is ... $73f4 ; address to location of table
=====Relocatable code=====
... At last I find a table :)
2nd Edit: I ... its 5 bytes, 1st byte is tile, and I ...

... mace, its 2 bytes, 1st byte is pickup code #E9 to ... #EB, 2nd byte is what tile to draw ... is mace. Up above the routine for the table there is a ... update the pointer to the table, add E8 item, but ... on pickup? Where's the table of calls for the pickups ...

... table below shows 1st byte tile, 2nd byte top left of tile, 3rd byte ... top right, 4th byte bottom left, 5th byte bottom right ... , $73f4; address to location of table
;=====Relocatable code=====
... 01 and work my way up. I`m going to sort ...

... doing.

Specifically sprite graphics and tile graphics are ... of the sprite graphics but never access them. The tile table, which ... possible to write your own sprite draw code. This draw ... not too different. The set-up is different, but the usage ...

Elite 48K Hack from YS issue 10:

[code]10 REM ELITE HACKING PROGRAM, (C) ZZKJ 16/3/1986
20 LET t=0: FOR n=64643 TO 64807: READ a: POKE n,a: LET t=t+a: NEXT n
30 IF t 19301 THEN PRINT "CHECKSUM ERROR": STOP
40 FOR n=n TO 1e9: ...

... mask (radio button)
sprite overwrites these attr bits:
up to 7 pixels of ... EG:

[code]
Sprite consists of these characters:
byte written.

Ideally ...

... 241 240 257 256 255 254 254 255 256 257 240 ... Therefore Poke 61B9,$10 (18th byte, 4th bit) will set this ... that this row is made up totally by the 6th ... column 28 show 065 (6th byte, 5th bit). Therefore Poke ... column 17 show 072 (7th byte, 2nd bit). Therefore Poke ...

... ;>8 Table must start on address divided by 256
< ... repeated
; to speed it up even more.

JP ... br /> ; example of table....
ORG $XX00 Table starting at "nice" ... br /> [/code]

Table is 256 bytes long. If you don ...

... ;>8 Table must start on address divided by 256
< ... repeated
; to speed it up even more.

JP ... br /> ; example of table....
ORG $XX00 Table starting at "nice" ... br /> [/code]

Table is 256 bytes long. If you don ...

... BC,#5800
ADD A,TABLE>>8
LD ... can even more speed it up using
; INC L
256 attrs processed
[/code ...

... loader with a symbol table of 256 entries. I believe this ... to be stored byte-wise with a 256 symbol table, but this way ...
Size of symbol definition table = 2
symbol: idx ... br /> Size of symbol definition table = 256
bits per symbol in ...

... custom loader with a symbol table of 256 entries. I believe this ... possible but a 1:1 byte representation. Thus the data of ... to be stored byte-wise with a 256 symbol table, but this way ... another block which would use 256 symbols, and definitely not something ...

... another block which would use 256 symbols, and definitely not something ... loading Injectaload is rarely implemented up to now?

And ... MHz. If you assume 1 Byte per pulse it is 4 ... the 6 kB saved. One byte is what is required if ...

... JSW 128k that has the 256 rooms, and it's really ... per room with an unnadjustable table for that (kinda makes the ... 64 rooms, an adjustable guardian table so you can assign just ... monster to a room or up to 32 (putting 32 moving ...

... InjectaLoad - 18 pulses per byte (9 waves), 256 char alphabet

byte only uses up two pulses), also ... Cyberlode - 18 pulses per byte (9 waves), 256 char alphabet
< ... br /> Contended Loader - 256 char alphabet, A LOT different ...

... ]Basically movement of a sprite would only happen after ... UDGs are stored as one byte per pixel row, rather than ... one byte per pixel, so copying ... an offset of one byte would cause things to ... persuade it to pick up UDGs from somewhere else ...

... id/type association table and the draw function table have been ... .

2. struct_sp1_cs sprite chars can now exist independently ... about 5%). This should add up for larger programs, perhaps adding ... up to a full 1k or ...

... ;c=number of columns in "sprite"
ld b,8 ;b ... =number of rows in "sprite"
ld d,31 ;d ... /> restoreh ;routine for moving up to top of byte again
ld ... times, for all coloums in byte

moveonecharacter
ld ...

... ;c=number of columns in "sprite"
loop0
ld b ... ;b=number of rows in "sprite"

loop1 ;main loop ... /> restoreh ;routine for moving up to top of byte again
ld ... times, for all coloums in byte

moveonecharacter
...

... not certain all of the table entries are required (I'm ... needs some work tidying it up, and some proper testing, but ... t_wait ; 10

ALIGN 16
table: DB LOW t_16

ld h, HIGH table ; 7
ld l, (hl ...

... /> ret ; 10

ALIGN 16
table: DB LOW t_16

ld de, (256 * HIGH table) + overhead2 ; 10
add hl ...

... /> ret ; 10

ALIGN 16
table: DB LOW t_16

ld de, (256 * HIGH table) + overhead2 ; 10
add hl ...

... by 2...
; add table entries for t_14 and t_15 ... to RET.
ld de, (256 * HIGH table) + overhead2 ; 10
add ... br />
; This is the table of remainder routines.
; note ... won't fit.
ALIGN 16
table: DB LOW t_16

... align the remainder to 4 T without the use of an table ... br /> ld hl,base + ( 256 - d2 )
; 10 21 ... $8000
org base+256-58

... ret

table db t14&255,t15 ...