... a byte. It means you often have to have a look up table ... to find out what the "flipped" version of the byte ... looks like and doing that on every write can add up ...

... about pre-converting each byte into a pulse-density ... even repeating the pattern byte, depending on the original ... sample byte is used to index into a look-up table, ... with a high byte to get the table address.
... 're just sending a table of data to the ...

... the sprites at 256 byte boundaries and just add the sprite no. to ... the base address in the hi-byte of ... address HL=$8000

sprite no.A=$0B


HL now points to sprite.

... of sprites
ld A,sprite no.
ld L,A ... ;put sprite no. into HL
ld ... ,DE ;HL now points to sprite

17 bytes[/CODE ... put the sprite no. in L directly saving 1 byte. Also, if ... in DE is at a 256 byte boundary (i.e. E=$00 ...

... be made (if placing shift table on 256-byte boundary) by using JP ...

... consists of :

[byte]
[00..31] - Pixel data ... next
you can use 256 byte table for tile description
and ... another table for action bits - 8 ... element
and morfing table - for some backround action.

... next
you can use 256 byte table for tile description
... element
and morfing table - for some backround action ... br /> [QUOTE]you can use 256 byte table for tile description[/QUOTE]
and morfing table - for some backround action ...

... /> out (#bf3b),#40+1 -- ulaplus 256 color mode on
out ... (#bf3b),#40+2 -- ulaplus 256 grayscale mode on
etc ... to #FF3B byte?[/QUOTE]

It's up to you. Personally ...

... if I'm understanding the 256 byte table thing right, you could probably ... a game uses a mirror table, and it's location, just ...

... the colour look up table described by the attr byte.

The ... parts of the colour look up table the ink and paper are ...

... is managing to get up to 21 256-byte sectors per track where ... has 8 or 9 512-byte sectors. Therefore it's capable ... buffer is going to fill up at some point and it ...

... is managing to get up to 21 256-byte sectors per track where ... has 8 or 9 512-byte sectors. Therefore it's capable ... buffer is going to fill up at some point and it ...

... ld a,h ; c = t / 256
ld (car+1),a ... ld a,l ; x = t % 256
cpl ; x = (b-1 ... ld a,l ; x = t % 256
cpl ; x = (b-1 ... requires table aligned to 16 byte boundary (i.e. address "table" must ...

... somewhat faster version with table restricted to single 256 byte block:
...
rnd ld hl,table
... if (table/256)-((table+17)/256)
error "whole table must be within single 256 byte block ...

... left 8 times (multiplied by 256), then you can shift it ... look-up table

    ld l,a
    ld h,MultTable/256 ...

... .
CLUT is "colour look up table". It means modifying the palette ... part of the colour look up register addressing, "only available in ... could achieve close to a 256 colour mode", it may not ... be possible without hooking up a DMA to write changes ...

... course the table of squares has to be on a 256 byte boundary ...

... table (IMPORTANT: entire table must be located within 256-byte boundary,
; and last byte ... from this table ... screen address from lookup table
next:< ...

... (such as: JP HL or 256-byte aligned tables...)
1. Compile ... to relocate. Create a relocation table from offsets them.
... and then walk through relocation table adding the actual start ... 101h? Because this affects 2 byte address. If you compiled ...

... relocating you separately load relocation table and binary. Reserve space ... Start your walk through relocation table. First entry is at ... , use stack to jump, 256-byte boundary allocations, etc...) are ... to program - release relocation table (no need for it ...

... in all cases except 256-byte aligned unless you keep ... offsets to multiples of 256 bytes. I hadn't ... before until tstih brought it up above.[/quote]

256-byte alingment you talk about above ... if aligned on a 256-byte boundary?

... object doesn't cross a 256-byte boundary, unless the alignment ... bit adjustment by the low byte, followed by a list ... -bit adjustment by the high byte.

This ... to extract high and low byte) but I think those ... there and that ends up calling one of the ...

... decided to use a look up table containing the address of the ... /7 - Dereference target address high byte
LD H,A ;1 ... /7 - Dereference target address high byte
LD H,A ;1 ...

... for Z80[/url] using look up table.[/quote]
The code linked ... be efficient.

One byte double dabble:
[code];Inputs ... be better to finish each byte before proceeding to the next ... , and this works for up to 4 bytes (32-bit ...

... nirvana_halt inserted someplace to sync up. Inserting a conservative nirvana_halt ... file. There is only 256 bytes available here, including ... to the top of this 256 byte page).

The ... memory available. The last byte segment is AY music and ...

... from the Z80 - you ended up getting wait states that caused ... . The 6502 had a fixed 256 byte stack, whilst the Z80 had ...

... one is triggered, a look-up table is used to determine what ... it with a nice HD sprite on a high colour display ... it should be when the sprite routine is done, and continue ... to emulate. If the sprite drawing routine checks for collision ...

... having much time to keep up to date with it lately ... ]
ISWHITE equ whiteaddr%256 ;low byte of white data is always ... /> Incidentally, if black really is 256-byte aligned, you can save a ...

... /> I could dig up some conversations from these ... /> You have to look up each disk system's manual ... assume it will show up in documentation if you ... systems are primitive, take up memory space, or integrate ... the printer buffer as 256-byte disk buffer. I don ...

... "]
You have to look up each disk system's manual ... and requires you to set up a basic command in a ... use the printer buffer as 256-byte disk buffer. I don't ...