A2osX/BIN/SH.S.HIS.txt

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NEW
AUTO 3,1
.LIST OFF
*--------------------------------------
HIS.Init >LDYAI HISTORY.MAX Get a buffer for History
>SYSCALL GetMem0
bcs .9
txa
>STA.G HIS.hBuf
lda #0
>STA.G HIS.Count
>STA.G HIS.Index
.9 rts
*--------------------------------------
HIS.Quit >LDA.G HIS.hBuf
beq .9
>SYSCALL FreeMem
.9 rts
*--------------------------------------
HIS.Add >LDA.G HIS.hBuf
beq .9
>SYSCALL GetMemPtr
>STYA ZPPTR1
.10 lda #$ff
jsr HIS.GetA Y=ending 0
phy
tya
sec add len+1
>ADC.G CL.Len CmdBuffer length
pla
bcc .2 enough room
jsr GetPtr1LenY get len of oldest string
tya
* sec
adc ZPPTR1
sta ZPPTR2
lda ZPPTR1+1
adc #0
sta ZPPTR2+1
ldy #$FF
.1 iny
lda (ZPPTR2),y move back until String ending 0 found
sta (ZPPTR1),y
bne .1
iny
lda (ZPPTR2),y move back until Array ending 0 found
sta (ZPPTR1),y
bne .1
>DEC.G HIS.Count
bra .10 retry....
.2 jsr AddAPtr1 A = ending O offset
ldy #$ff
.4 iny
lda (ZPCLBuf),y
sta (ZPPTR1),y
bne .4
iny
sta (ZPPTR1),y set new array ending 0
* lda #0
>STA.G HIS.Index Reset Index
>INC.G HIS.Count
.9 rts
*--------------------------------------
HIS.GetPrev >LDA.G HIS.hBuf
beq HISTORY.RTS
>SYSCALL GetMemPtr
>STYA ZPPTR1
>LDA.G HIS.Count
beq HISTORY.RTS empty history,nothing to do
>LDA.G HIS.Index
bne .1
>LDA.G HIS.Count
.1 dec
>STA.G HIS.Index
bra HIS.SetA
History.RTS rts
*--------------------------------------
HIS.GetNext >LDA.G HIS.hBuf
beq HISTORY.RTS
>SYSCALL GetMemPtr
>STYA ZPPTR1
>LDA.G HIS.Count
beq HISTORY.RTS empty history,nothing to do
>LDA.G HIS.Index
inc
>CMP.G HIS.Count
bne .1
lda #0
>STA.G HIS.Index
jmp CL.CLR
.1 >STA.G HIS.Index
*--------------------------------------
HIS.SetA jsr HIS.GetA
tya
jsr AddAPtr1
jsr CL.CLR
ldy #$ff
.2 iny
lda (ZPPTR1),y
sta (ZPCLBuf),y
bne .2
tya
>STA.G CL.Ptr
>STA.G CL.Len
jmp CL.PrintCLBuf
*--------------------------------------
HIS.GetA ldy #0
tax
beq .80
lda (ZPPTR1),y
beq .9
.1 iny
lda (ZPPTR1),y
bne .1
dex
beq .8
iny
lda (ZPPTR1),y
bne .1
.9 sec Found ending 0....
rts
.8 iny
.80 clc
rts
*--------------------------------------
MAN
SAVE USR/SRC/BIN/SH.S.HIS
LOAD USR/SRC/BIN/SH.S
ASM