A2osX/BIN/EDIT.S.SCRN.txt

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NEW
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PREFIX /A2OSX.BUILD
AUTO 4,1
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.LIST OFF
*--------------------------------------
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SCRN.Init >LDA.G ScreenH
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dec
>PUSHA
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>PUSHBI 1
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>LDYA L.SEQ.INIT
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>SYSCALL printf
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bcs .9
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lda #12
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>SYSCALL PutChar
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bcs .9
lda #0
ldy #FileX
sta (pData),y
ldy #FileY
sta (pData),y
iny
sta (pData),y
ldy #ScreenX
sta (pData),y
ldy #ScreenY
sta (pData),y
iny
sta (pData),y
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jsr SCRN.UpdateTopBar
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bcs .9
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jsr SCRN.UpdateViewPort
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bcs .9
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jsr SCRN.UpdateMain
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.9 rts
*--------------------------------------
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SCRN.UpdateTopBar
lda #1
jsr SCRN.InvLineA
bcs .9
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>LDA.G hFileName
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beq .1
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>SYSCALL GetMemPtr
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bra .2
.1 >LDYA L.MSG.NEWFILE
.2 >PUSHYA
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>PUSHBI 2
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>LDYA L.MSG.TOPBAR
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>SYSCALL printf
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.9 rts
*--------------------------------------
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SCRN.UpdateMain >LDA.G ScreenY
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sta TmpIndex
iny
lda (pData),y
sta TmpIndex+1
lda #0
sta TmpByte
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>LDA.G ViewPortH
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sta TmpCount
.1 lda TmpIndex
ldx TmpIndex+1
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jsr BUF.GetLineAX Y = line length
bcs .5
lda TmpByte
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jsr SCRN.UpdateLineAtALenY
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bcs .9
.3 inc TmpByte
inc TmpIndex
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bne .4
inc TmpIndex+1
.4 dec TmpCount
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bne .1
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jmp SCRN.GotoCurXCurY
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.5 ldx #0
ldy TmpByte
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jsr GotoXY
bcs .9
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>PUSHBI 0
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>LDYA L.SEQ.CEOL
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>SYSCALL printf
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bcs .9
inc TmpByte
dec TmpCount
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bne .5
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jmp SCRN.GotoCurXCurY
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.9 rts
*--------------------------------------
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SCRN.UpdateCurrentLine
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>LDA.G ScreenY+1
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tax
dey
lda (pData),y
clc
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>ADC.G CurY
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bcc .1
inx
.1 jsr BUF.GetLineAX
bcs .9
phy
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>LDA.G CurY
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ply
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jsr SCRN.UpdateLineAtALenY
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.9 rts
*--------------------------------------
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SCRN.UpdateLineAtALenY
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stz bSelected
sty TmpLen
ldx #0
tay
jsr GotoXY
bcs .9
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>LDA.G ScreenW
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tax
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>LDA.G ScreenX
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tay
.1 cpy TmpLen
bcs .3
jsr BUF.GetCharAtY
beq .3
cmp #13
beq .3
phx
phy
pha
jsr BUF.CheckSelected
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jsr SCRN.UpdateAttrC
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pla
bcs .11
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>SYSCALL PutChar
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.11 ply
plx
bcs .9
.2 iny
dex
bne .1
.3 sec
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jsr SCRN.UpdateAttrC
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bcs .9
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>PUSHBI 0
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>LDYA L.SEQ.CEOL
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>SYSCALL printf
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bcs .9
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rts
.9 jmp Ctrl.Q
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*--------------------------------------
* CC = set INV, CS = set NORM
*--------------------------------------
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SCRN.UpdateAttrC
bcc .1
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bit bSelected
bpl .8
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>PUSHBI 0
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>LDYA L.SEQ.NORM
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>SYSCALL printf
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bcs .9
stz bSelected
rts
.1 bit bSelected
bmi .8
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>PUSHBI 0
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>LDYA L.SEQ.INV
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>SYSCALL printf
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bcs .9
lda #$ff
sta bSelected
.8 clc
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rts
.9 jmp Ctrl.Q
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*--------------------------------------
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SCRN.UpdateStatusBar
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>PUSHBI 1
>PUSHB.G ScreenH
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>PUSHBI 2
>LDYA L.MSG.GOTOXY
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>SYSCALL printf
bcs .9
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>PUSHBI 0
>LDYA L.SEQ.INV
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>SYSCALL printf
bcs .9
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>LDA.G PromptMode
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bne .2
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>LDA.G FileY
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tax
iny
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lda (pData),y
inx
bne .1
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inc
.1 >PUSHA
txa
>PUSHA
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>LDA.G FileX
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inc
>PUSHA
ldy #FileLen+1
>PUSHB (pData),y
dey
>PUSHB (pData),y
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>PUSHBI 5
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>LDYA L.MSG.STATUSBAR
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>SYSCALL printf
bcs .9
lda #58
jsr SCRN.ClearEOLA
bcs .9
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>PUSHBI 0
>LDYA L.SEQ.NORM
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>SYSCALL printf
bcs .9
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jmp SCRN.GotoCurXCurY
.9 jmp Ctrl.Q
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.2 eor #PromptModeHelp
beq .3
>PUSHW pData
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lda #2
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.3 >PUSHA
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>LDA.G ScreenH
jsr SCRN.InvLineA
bcs .9
ldy #PromptMode
lda (pData),y
tax
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>LDYA L.MSG.STATUSBAR,x
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>SYSCALL printf
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bcs .9
rts
*--------------------------------------
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SCRN.UpdateStatusBarErrA
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pha
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ldy #ScreenH
lda (pData),y
dec
jsr SCRN.InvLineA
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pla
>PUSHA
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>PUSHBI 1
>LDYA L.MSG.STATUSBAR.E
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>SYSCALL printf
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bcs .9
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rts
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.9 jmp Ctrl.Q
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*--------------------------------------
SCRN.ClearEOLA pha
.1 pla
ldy #ScreenW
cmp (pData),y
bcs .8
inc
pha
lda #' '
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>SYSCALL PutChar
bcc .1
plx
rts
.8 clc
.9 rts
*--------------------------------------
SCRN.InvLineA sta .2+1
lda #1
>PUSHA
lda .2+1
>PUSHA
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>PUSHBI 2
>LDYA L.MSG.GOTOXY
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>SYSCALL printf
bcs .9
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>PUSHBI 0
>LDYA L.SEQ.INV
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>SYSCALL printf
bcs .9
ldy #ScreenW
lda (pData),y
.1 pha
lda #' '
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>SYSCALL PutChar
pla
bcs .9
dec
bne .1
lda #1
>PUSHA
.2 lda #$ff
>PUSHA
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>PUSHBI 2
>LDYA L.MSG.GOTOXY
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>SYSCALL printf
.9 rts
*--------------------------------------
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SCRN.GotoCurXCurY
ldy #CurX
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lda (pData),y
tax
ldy #CurY
lda (pData),y
tay
GotoXY txa
inc
>PUSHA
tya
inc
inc
>PUSHA
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>PUSHBI 2
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>LDYA L.MSG.GOTOXY
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>SYSCALL printf
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bcs .9
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rts
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.9 jmp Ctrl.Q
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*--------------------------------------
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SCRN.UpdateViewPort
lda #$ff
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sta bNotRepaint
.1 ldy #FileX
lda (pData),y
ldy #ScreenX
cmp (pData),y
bcs .2 out of left border ?
ldy #ScreenX yes
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lda (pData),y
dec
sta (pData),y
stz bNotRepaint
bra .1
.2 clc
ldy #ScreenX
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lda (pData),y
ldy #ScreenW
adc (pData),y
dec
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ldy #FileX
cmp (pData),y
bcs .3 out of right border ?
ldy #ScreenX
lda (pData),y
inc
sta (pData),y
stz bNotRepaint
bra .2
.3 ldy #FileY+1
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lda (pData),y
tax
dey
lda (pData),y A,X = FileY
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ldy #ScreenY
cmp (pData),y
iny
txa
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sbc (pData),y
bcs .4 out of top border ?
ldy #ScreenY move viewport up one line....
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lda (pData),y
sbc #0 CC from BCS
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sta (pData),y
iny
lda (pData),y
sbc #0
sta (pData),y
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bit bNotRepaint
bpl .3
jsr SCRN.scrollDn ...and move content one line down
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bcc .3
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jmp Ctrl.Q
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.4 ldy #ScreenY+1
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lda (pData),y
tax
dey
lda (pData),y
ldy #ViewPortHm1
clc
adc (pData),y
bcc .41
inx
.41 ldy #FileY A,X = screen bottom
cmp (pData),y
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txa
iny FileY > screen bottom ?
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sbc (pData),y
bcs .5 CS : fileY>= screen bottom
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* clc from BCS
ldy #ScreenY move viewport down one line....
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lda (pData),y
adc #1
sta (pData),y
iny
lda (pData),y
adc #0
sta (pData),y
bit bNotRepaint
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bpl .4
jsr SCRN.scrollUp ...and move content one line up
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bcs .9
bra .4
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.5 sec
ldy #FileX
lda (pData),y
ldy #ScreenX
sbc (pData),y
ldy #CurX
sta (pData),y
sec
ldy #FileY
lda (pData),y
ldy #ScreenY
sbc (pData),y
ldy #CurY
sta (pData),y
bit bNotRepaint
bmi .6
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jsr SCRN.UpdateMain
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bcs .9
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.6 jsr SCRN.UpdateStatusBar
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bcs .9
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jsr SCRN.GotoCurXCurY
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bcs .9
rts
.9 jmp Ctrl.Q
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*--------------------------------------
SCRN.scrollUp ldy #CurX
lda (pData),y
inc
>PUSHA
ldy #CurY
lda (pData),y
inc
inc
>PUSHA
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>PUSHBI 2
>LDYA L.SEQ.SCROLLUP
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>SYSCALL printf
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bcs .9
ldy #ScreenY+1
lda (pData),y
tax
dey
lda (pData),y
clc
ldy #ViewPortHm1
adc (pData),y
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bcc .1
inx
.1 jsr BUF.GetLineAX
bcs .9
ldy #ViewPortHm1
lda (pData),y
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jsr SCRN.UpdateLineAtALenY
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bcs .9
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rts
.9 jmp Ctrl.Q
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*--------------------------------------
SCRN.scrollDn ldy #CurX
lda (pData),y
inc
>PUSHA
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ldy #CurY
lda (pData),y
inc
inc
>PUSHA
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>PUSHBI 2
>LDYA L.SEQ.SCROLLDN
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>SYSCALL printf
bcs .9
ldy #ScreenY+1
lda (pData),y
tax
dey
lda (pData),y
jsr BUF.GetLineAX
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bcs .9
lda #0
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jsr SCRN.UpdateLineAtALenY
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bcs .9
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rts
.9 jmp Ctrl.Q
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*--------------------------------------
MAN
SAVE /A2OSX.SRC/BIN/EDIT.S.SCRN
LOAD /A2OSX.SRC/BIN/EDIT.S
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ASM