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This is the assembly stack application !
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Most FamousSimple scroll animation effect24-bits operationsIonFastCopyRLE decompressionCompare stringsHello world
Code routines
;-----> Copy the gbuf to the screen (fast)
;Input: nothing
;Output: graph buffer is copied to the screen
fastCopy:
di
ld a,$80
out ($10),a
ld hl,gbuf-12-(-(12*64)+1)
ld a,$20
ld c,a
inc hl
dec hl
fastCopyAgain:
ld b,64
inc c
ld de,-(12*64)+1
out ($10),a
add hl,de
ld de,10
fastCopyLoop:
add hl,de
inc hl
inc hl
inc de
ld a,(hl)
out ($11),a
dec de
djnz fastCopyLoop
ld a,c
cp $2B+1
jr nz,fastCopyAgain
ret
;Input: nothing
;Output: graph buffer is copied to the screen
fastCopy:
di
ld a,$80
out ($10),a
ld hl,gbuf-12-(-(12*64)+1)
ld a,$20
ld c,a
inc hl
dec hl
fastCopyAgain:
ld b,64
inc c
ld de,-(12*64)+1
out ($10),a
add hl,de
ld de,10
fastCopyLoop:
add hl,de
inc hl
inc hl
inc de
ld a,(hl)
out ($11),a
dec de
djnz fastCopyLoop
ld a,c
cp $2B+1
jr nz,fastCopyAgain
ret
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