A2osX/SBIN/LOGIN.S.txt

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NEW
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PREFIX
AUTO 4,1
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.LIST OFF
.OP 65C02
.OR $2000
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.TF SBIN/LOGIN
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*--------------------------------------
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.INB INC/MACROS.I
.INB INC/A2OSX.I
*--------------------------------------
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.DUMMY
.OR ZPBIN
ZS.START
ZPPTR1 .BS 2
ZS.END
.ED
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*--------------------------------------
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INPUT.BUF.SIZE .EQ 16
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*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
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.DA #S.PS.F.EVENT S.PS.F
.DA #0
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.DA CS.END-CS.START Code Size (without Constants)
.DA DS.END-DS.START Data SegmentSize
.DA #16 Stack Size
.DA #ZS.END-ZS.START Zero Page Size
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.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.MSG.LOGIN .DA MSG.LOGIN
L.MSG.PASSWORD .DA MSG.PASSWORD
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L.MSG.ECHOCRLF .DA MSG.ECHOCRLF
L.MSG.ECHODEL .DA MSG.ECHODEL
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L.ENV.SHELL .DA ENV.SHELL
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L.SHELL .DA SHELL
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L.ENV.HOME .DA ENV.HOME
L.HOME .DA HOME
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.DA 0
*--------------------------------------
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CS.INIT clc
rts
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*--------------------------------------
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CS.RUN >STZ.G hUSERNAME
>STA.G hPASSWORD
>STA.G INPUT.PrevCR
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>PUSHBI 0
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>LDYA L.MSG.LOGIN
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>SYSCALL printf
bcs .9
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lda #0 Echo all caracters
jsr INPUT.RESET
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.1 >SYSCALL GetChar
bcs .9
jsr INPUT.CHARIN
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jsr INPUT.LINEIN
bcc .1
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>PUSHBI 0
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>LDYA L.MSG.PASSWORD
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>SYSCALL printf
bcs .9
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lda #'*'
jsr INPUT.RESET
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.2 >SYSCALL GetChar
bcs .9
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jsr INPUT.CHARIN
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jsr INPUT.LINEIN
bcc .2
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>PUSHBI 0
>LDYA L.MSG.ECHOCRLF
>SYSCALL printf
bcs .9
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jsr CS.RUN.SETENV
bcs .9
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>PUSHBI S.PS.F.HOLD+S.PS.F.DUPENV
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>LDYA L.SHELL
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>SYSCALL ExecL
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.9 rts
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*--------------------------------------
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CS.RUN.SETENV >PUSHW L.HOME
>LDYA L.ENV.HOME
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>SYSCALL setenv
bcs .9
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>PUSHW L.SHELL
>LDYA L.ENV.SHELL
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>SYSCALL setenv
bcs .9
.9 rts
*--------------------------------------
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CS.DOEVENT
sec
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rts
*--------------------------------------
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CS.QUIT clc
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rts
*--------------------------------------
* PRIVATE
*--------------------------------------
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INPUT.RESET >STA.G INPUT.PassChar
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>STZ.G INPUT.BUF
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>STA.G INPUT.Status
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rts
*--------------------------------------
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INPUT.CHARIN tax save char...
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>LDA.G INPUT.Status
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bmi .9
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lda #INPUT.BUF
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clc
adc pData
sta ZPPTR1
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lda pData+1
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adc /INPUT.BUF
sta ZPPTR1+1
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cpx #$20 Control Char?
bcc .2
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cpx #C.DEL
beq INPUT.CHARIN.DEL
lda (ZPPTR1)
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cmp #INPUT.BUF.SIZE Buffer full?
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beq .9
inc
sta (ZPPTR1)
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tay
txa
sta (ZPPTR1),y
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>LDA.G INPUT.PassChar
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bne .1
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txa
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.1 >SYSCALL PutChar
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bcs .9
>STZ.G INPUT.PrevCR
rts
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.2 cpx #C.CR
bne .3
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txa
>STA.G INPUT.PrevCR
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lda #$80
>STA.G INPUT.Status
rts
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.3 cpx #C.LF
bne .4
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>LDA.G INPUT.PrevCR
beq .1
.4 >STZ.G INPUT.PrevCR
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.9 rts
*--------------------------------------
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INPUT.CHARIN.DEL
lda (ZPPTR1)
beq .8
dec
sta (ZPPTR1)
>PUSHBI 0
>LDYA L.MSG.ECHODEL
>SYSCALL printf
.8 clc
rts
*--------------------------------------
INPUT.LINEIN ldy #INPUT.Status
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lda (pData),y
asl CS if a line is in the buffer
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rts
*--------------------------------------
CS.END
MSG.LOGIN .AZ "\r\nlogin:"
MSG.PASSWORD .AZ "\r\npassword:"
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MSG.ECHOCRLF .AZ "\r\n"
MSG.ECHODEL .DA #C.BS,#C.SPACE,#C.BS,#0
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ENV.SHELL .AZ "SHELL"
ENV.HOME .AZ "HOME"
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SHELL .AZ "${ROOT}BIN/SH"
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HOME .AZ "${ROOT}ROOT/"
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.HS 00
*--------------------------------------
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.DUMMY
.OR 0
DS.START
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INPUT.BUF .BS INPUT.BUF.SIZE+1
INPUT.Status .BS 1
INPUT.PassChar .BS 1
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INPUT.PrevCR .BS 1
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hUSERNAME .BS 1
hPASSWORD .BS 1
DS.END
.ED
*--------------------------------------
MAN
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SAVE USR/SRC/SBIN/LOGIN.S
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ASM