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A2osX/BIN/EDIT.S.BUF.txt
Rémy GIBERT c33f940a8b Kernel version 0.9 : MEDIA reorganisation
2017-03-29 17:48:15 +02:00

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PR#3
PREFIX /A2OSX.BUILD
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
BUF.InsertClipboard
ldy #hClipBoard
lda (pData),y
beq .8
>SYSCALL GetMemPtrA
>STYA ClipboardPtr
jsr BUF.ComputeCOffset
ldy #FileLen
lda (pData),y
sec
ldy #ClipboardLen
adc (pData),y
pha
ldy #FileLen+1
lda (pData),y
ldy #ClipboardLen+1
adc (pData),y
ply
jsr BUF.GetNewYA
bcs .9
>LDYA BUF.COffset
>STYA TmpCount
jsr BUF.CopyCount
ldy #ClipboardLen
lda (pData),y
sta TmpCount
iny
lda (pData),y
sta TmpCount+1
jsr BUF.CopyClipboard
jsr BUF.CopyTail
.4 ldy #ClipboardLen+1
lda (pData),y
tax
dey
lda (pData),y
clc
ldy #FileLen
adc (pData),y
sta (pData),y
iny
txa
adc (pData),y
sta (pData),y
.8 clc
.9 rts
*--------------------------------------
BUF.InsertA sta TmpByte
jsr BUF.ComputeCOffset
cpy #255
bne .10
clc
rts
.10 ldy #FileLen
lda (pData),y
sec
adc #1
pha
iny
lda (pData),y
adc #0
ply
jsr BUF.GetNewYA
bcs .9
>LDYA BUF.COffset
>STYA TmpCount
.1 jsr BUF.CopyCount
.2 lda TmpByte
sta (BufPtr)
inc BufPtr
bne .3
inc BufPtr+1
.3 jsr BUF.CopyTail
.4 ldy #FileLen
lda (pData),y
inc
sta (pData),y
bne .8
iny
lda (pData),y
inc
sta (pData),y
.8 clc
.9 rts
*--------------------------------------
BUF.DelSel jsr BUF.GetSelLen
bcs .8
>STYA SelLen
.10 jsr BUF.ComputeCOffset
ldy #SelStart
lda (pData),y
sta TmpCount
sec
sbc BUF.COffset
iny
lda (pData),y
sta TmpCount+1
sbc BUF.COffset+1
bcs .11
ldy #FileY
lda (pData),y
sec
sbc #1
sta (pData),y
iny
lda (pData),y
sbc #0
sta (pData),y
ldy #FileX
lda #0
sta (pData),y
bra .10
.11 ldy #FileLen
lda (pData),y
sec
sbc SelLen
pha
iny
lda (pData),y
sbc SelLen+1
ply
iny
bne .1
inc
.1 jsr BUF.GetNewYA
bcs .9
jsr BUF.CopyCount
lda BufPtrBackup
clc
adc SelLen
sta BufPtrBackup
lda BufPtrBackup+1
adc SelLen+1
sta BufPtrBackup+1
jsr BUF.CopyTail
ldy #FileLen
lda (pData),y
sec
sbc SelLen
sta (pData),y
ldy #FileLen+1
lda (pData),y
sbc SelLen+1
sta (pData),y
jsr BUF.ResetSel
.8 clc
.9 rts
*--------------------------------------
BUF.Del ldy #FileLen
lda (pData),y
iny
ora (pData),y
bne .10
clc exit with A=0
rts
.10 jsr BUF.ComputeCOffset
lda BUF.COffset
clc
ldy #FileLen
sbc (pData),y
lda BUF.COffset+1
iny
sbc (pData),y
bcc .11
lda #0 exit with A=0
clc
rts
.11 lda (pData),y
pha
dey
lda (pData),y
tay
pla
jsr BUF.GetNewYA
bcs .9
>LDYA BUF.COffset
>STYA TmpCount
jsr BUF.CopyCount
lda (BufPtrBackup)
tax Save deleted char for later
inc BufPtrBackup
bne .3
inc BufPtrBackup+1
.3 jsr BUF.CopyTail
ldy #FileLen
lda (pData),y
sec
sbc #1
sta (pData),y
iny
lda (pData),y
sbc #0
sta (pData),y
jsr BUF.ResetSel
txa Get back deleted char
clc
.9 rts
*--------------------------------------
BUF.SelToClipboard
jsr BUF.GetSelLen
bcs .8
>STYA TmpCount
ldy #hClipBoard
lda (pData),y
beq .1
>SYSCALL FreeMemA
.1 >PUSHW TmpCount
>PUSHB 0
>SYSCALL GetMem
bcs .9
>STYA ClipboardPtr
txa
ldy #hClipBoard
sta (pData),y
ldy #ClipBoardLen
lda TmpCount
sta (pData),y
iny
lda TmpCount+1
sta (pData),y
ldy #hBuffer
lda (pData),y
>SYSCALL GetMemPtrA
>STYA BufPtr
lda BufPtr
clc
ldy #SelStart
adc (pData),y
sta BufPtr
lda BufPtr+1
iny
adc (pData),y
sta BufPtr+1
ldy #0
.2 jsr DecTmpCount
beq .8
lda (BufPtr),y
sta (ClipboardPtr),y
iny
bne .2
inc BufPtr+1
inc ClipboardPtr+1
bra .2
jsr BUF.ResetSel
.8 clc
.9 rts
*--------------------------------------
BUF.CopyClipboard
jsr DecTmpCount
beq .9
lda (ClipboardPtr)
sta (BufPtr)
inc ClipboardPtr
bne .1
inc ClipboardPtr+1
.1 inc BufPtr
bne BUF.CopyClipboard
inc BufPtr+1
bra BUF.CopyClipboard
.9 rts
*--------------------------------------
BUF.CopyCount jsr DecTmpCount
beq .9
lda (BufPtrBackup)
sta (BufPtr)
inc BufPtrBackup
bne .1
inc BufPtrBackup+1
.1 inc BufPtr
bne BUF.CopyCount
inc BufPtr+1
bra BUF.CopyCount
.9 rts
*--------------------------------------
BUF.CopyTail lda (BufPtrBackup)
beq .9
sta (BufPtr)
inc BufPtrBackup
bne .1
inc BufPtrBackup+1
.1 inc BufPtr
bne BUF.CopyTail
inc BufPtr+1
bra BUF.CopyTail
.9 rts
*--------------------------------------
* Out : Y = Line Length
*--------------------------------------
BUF.ComputeCOffset
jsr BUF.GetLine
bcs .9
phy save line length
ldy #FileX
lda (pData),y
clc
adc BUF.LOffset
sta BUF.COffset
lda #0
adc BUF.LOffset+1
sta BUF.COffset+1
ply
clc
.9 rts
*--------------------------------------
BUF.GetLine ldy #FileY+1
lda (pData),y
tax
dey
lda (pData),y
BUF.GetLineAX >STAX BUF.TmpLine1
stz BUF.LOffset
stz BUF.LOffset+1
ldy #hBuffer
lda (pData),y
>SYSCALL GetMemPtrA
>STYA BufPtr
stz BUF.TmpLine2
stz BUF.TmpLine2+1
.1 ldy #0
.2 lda (BufPtr),y
beq .7
cmp #13
beq .3
iny
bne .2
.3 lda BUF.TmpLine1
cmp BUF.TmpLine2
bne .4
lda BUF.TmpLine1+1
cmp BUF.TmpLine2+1
beq .8
.4 tya
sec
adc BufPtr
sta BufPtr
bcc .5
inc BufPtr+1
.5 tya
sec
adc BUF.LOffset
sta BUF.LOffset
bcc .6
inc BUF.LOffset+1
.6 inc BUF.TmpLine2
bne .1
inc BUF.TmpLine2+1
bra .1
.7 lda BUF.TmpLine1
cmp BUF.TmpLine2
bne .9
lda BUF.TmpLine1+1
cmp BUF.TmpLine2+1
bne .9
.8 clc Y = Line length
rts
.9 sec
rts
*--------------------------------------
BUF.GetCharAtY tya
clc
adc BUF.LOffset
sta BUF.COffset
lda #0
adc BUF.LOffset+1
sta BUF.COffset+1
lda (BufPtr),y
clc
rts
*--------------------------------------
BUF.GetNewYA >STYA TmpLen
ldy #hBufferBackup
lda (pData),y
beq .1
>SYSCALL FreeMemA
.1 ldy #hBuffer
lda (pData),y
ldy #hBufferBackup
sta (pData),y
>SYSCALL GetMemPtrA
>STYA BufPtrBackup
>PUSHW TmpLen
>PUSHBI S.MEM.F.INIT0
>SYSCALL GetMem
bcs .9
>STYA BufPtr
txa
ldy #hBuffer
sta (pData),y
.9 rts
*--------------------------------------
BUF.ResetSel lda #0
ldy #SelStart
sta (pData),y
iny
sta (pData),y
ldy #SelEnd
sta (pData),y
iny
sta (pData),y
rts
*--------------------------------------
BUF.CheckSelected
sec
lda BUF.COffset
ldy #SelStart
sbc (pData),y
lda BUF.COffset+1
iny
sbc (pData),y
bcc .9
lda BUF.COffset
ldy #SelEnd
sbc (pData),y
lda BUF.COffset+1
iny
sbc (pData),y
rts CC if in selection
.9 sec
rts
*--------------------------------------
* Out : CC if ok, YA=SelLen
*--------------------------------------
BUF.GetSelLen ldy #SelEnd
lda (pData),y
sec
ldy #SelStart
sbc (pData),y
tax
ldy #SelEnd+1
lda (pData),y
sec
ldy #SelStart+1
sbc (pData),y
bcc .9
phx
ply
bne .8
tax
beq .9
.8 clc
rts
.9 sec
rts
*--------------------------------------
MAN
SAVE /A2OSX.SRC/BIN/EDIT.S.BUF
LOAD /A2OSX.SRC/BIN/EDIT.S
ASM
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