... buffer vertically and horizontally using unrolled loops, then dumping it to screen ... using the POP/PUSH method can be done ...

... buffer vertically and horizontally using unrolled loops, then dumping it to screen ... using the POP/PUSH method can be done ...

... buffer vertically and horizontally using unrolled loops, then dumping it to screen ... using the POP/PUSH method can be done ...

... byte order) buffer at 57484 to the Spectrum screen at
push bc
push de
push hl
... push af
push bc
push de
push hl
push ix
push ... br /> push hl
push de
push bc
push af

... 16 byte row to the buffer
ldi
ldi ... br /> ldi
ldi
push bc
ld bc,16 ... 16 bytes from the buffer to the screen
ldi
... br /> ldi
ldi
push bc
ex de,hl ... hl ;put hl back to buffer, de back to screem< ...

... address higher in the buffer each time to give ... ld b,7
slp2 push bc
call sprite
slp push de
ld a,( ... br /> scrntab defw 16384 ;screen address table
defw ... or before, sprite misses third screen segment later
defw ...

... a moveable buffer pointer, and 28-wide if I really push the ... copying from a linear buffer. Using LD/PUSH it might even be ... . Kind of like Joffa's screen scrolling, but on a line ... all 192 rows of the screen, except the processor time and ...

...
;----------------


;set screen graphics
LD HL,16384 ... ;copy MV11
PUSH IX ;copy MV10
PUSH AF ;copy MV9 ... />
LD HL,(CurrentLineAttrs) ;next buffer data
ADD HL,DE ...

... ] having a go at PUSH scrolling. Don't forget ... rl (hl) on a buffer consisting only of 'char cell ... can rotate the tiny buffer very quickly (it's ... draw the screen behind the scanline. The PUSH routine can also ... 're scrolling the whole screen with varied tiles is ...

... -reverse without using a temporary buffer.[/quote]

So ... directly to the screen without a temporary buffer. And this will ... store source, restore destination
push hl ; store destination
sbc ...

... ld de,$c000
push de
call dzx7< ... br /> [CODE]; from RCS buffer to screen (DE must contain RCS address ... counted backwards)
next_row:
push de
call $0E9B ; ... ld de,rcs_buffer
push de
call dzx7< ...

... /einar/o-mundo-perdido/"]this screen[/URL] correctly (the entire image ... />
[CODE]; from RCS buffer to screen (DE must contain RCS address ...
ld de,rcs_buffer
push de
call dzx7

... transform a regular ZX-Spectrum screen file (such as "Cobra. ... format back into a regular screen. However this method requires a ... directly to the ZX-Spectrum screen.[/LIST]
The RCS ... format back into a regular screen. The standalone routine allows using ...

... />
; Preserve initial address
push de

; First step ... all bytes from screen ordered as "r2r3p1p2p3r1" to this buffer, then copy ... them again to the screen reordered as ...

... ; Number of screen char lines to save
SPRSLP1 PUSH BC
SPRSLP2 PUSH BC
PUSH HL
LD B ... ; Number of screen char lines to restore
RPRSLP4 PUSH BC
buffer for screen save
ATRBUF2 defs ...

... HL, result
PUSH HL ; Will return buffer position later
... to where you want the buffer to be.
;22528 ... screen with ink.[/code]

The offset in the buffer ... slightly longer routine, the buffer could order the keys in ...

... scrolling scenery, or push-character-scrolling, or simple flick-screen.

screen in the foreground like [I ... scrolling scene held in a buffer with a character-by- ... substitutions, or at least on-screen ones).

The ...

... 's LD/PUSH method to get graphics data onto the screen (and ... don't bother using a back-buffer). One ...

... memory (for instance copying from buffer to screen) during contention, the results ... rolled loop" sequence of [B]PUSH[/B]es above would have ... routine to copy from buffer to screen should probably use [B ... "rolled loop" routine so [B]PUSH[/B]es are executed during ...

... the "rolled loop" [B]PUSH[/B] version could be ... the screen. I wouldn't put a buffer in ... PUSH though, like when you're vertically scrolling an 8x1 mode screen ... loop" [B]PUSH[/B] during screen scan such that all ... [B]PUSH[/B]es ...

... />
; -----------------------------------------------------------------------------

; THE 'SCROLL BUFFER' SUBROUTINE
org 0x2571
push bc ; stack count
push de ; stack screen start address
push hl ...

... from buffer to screen), clearly code and buffer should be ... PUSH though, like when you're vertically scrolling an 8x1 mode screen ... referencing a certain bitmap screen address, [B]BC[/ ... screen address, and [B]HL[/B] referencing the corresponding pair in buffer ...

... a customised unrolled PUSH/POP colour routine from a buffer. Then you ... , you hide the sprites off-screen then call the draw function ... ),HL. Then set SP and push the other six registers to ...

... hide the sprites off-screen then call the draw function ... definition without even using a buffer.

If ...
; 16035T
PUSH BC ; columns 15 and 16 ... /> EXX
; 16077T
PUSH BC ; columns 11 and 12 ...

... way to time sprites to screen refresh? or is it ... br />
push af
push bc
push de
push hl
screen 32x24
53 ; d1ff - d1ff SP1.LIB attribute buffer
buffer
55 ; d1ed - d1f6 ...

... buffer
.endif
.ifdef ROM1
call po_scr_3 ; scroll the screen ... ; add offset
push hl ; stack it

... palbuf ; address palette buffer

... defb Off_screen ; off screen

... mode)
push bc ; stack ...

... screen 32x24
53 ; d1ff - d1ff SP1.LIB attribute buffer ...
push af
push bc
push de
push hl
{
#asm
push hl

ld hl ...
my_asm_isr_2:

push hl

ld hl ...

... -tile position in buffer starting at 23296,DE-screen graphics position
PUSH HL
PUSH DE

LD A,D ;screen graphics ... address to screen attribute ...