mirror of https://github.com/A2osX/A2osX.git
480 lines
8.2 KiB
Plaintext
480 lines
8.2 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF sbin/login
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/A2OSX.I
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.INB INC/KERNEL.I
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.INB INC/MLI.I
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*--------------------------------------
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.DUMMY
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.OR ZPBIN
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ZS.START
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ZPhBuf .BS 1
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ZPBufPtr .BS 2
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ZPRetryCnt .BS 1
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ZPbValidUser .BS 1
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ZPUID .BS 1
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ZPhGetLine .BS 1
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ZPGetLinePtr .BS 2
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ZPbGetLineSecret .BS 1
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ZPbEsc .BS 1
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ZPGetLineLen .BS 1
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ZPGetLineMax .BS 1
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ZPhPW .BS 1
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ZPPWPtr .BS 2
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hSession .BS 1
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ZPNewSID .BS 1
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ZPOldSID .BS 1
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ZPhFile .BS 1
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ZPStrPtr .BS 2
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ZS.END
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.ED
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA #S.PS.F.EVENT S.PS.F
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.DA #0
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.DA CS.END-CS.START Code Size (without Constants)
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.DA DS.END-DS.START Data Segment Size
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.DA #32 Stack Size
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.DA #ZS.END-ZS.START Zero Page Size
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA CS.INIT
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.DA CS.RUN
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.DA CS.DOEVENT
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.DA CS.QUIT
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L.MSG.NOAUTH .DA MSG.NOAUTH
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L.MSG.LOGIN .DA MSG.LOGIN
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L.MSG.PASSWORD .DA MSG.PASSWORD
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L.MSG.BAD .DA MSG.BAD
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L.MSG.CRLF .DA MSG.CRLF
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L.MSG.BS .DA MSG.BS
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L.ETCISSUE .DA ETCISSUE
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L.ETCMOTD .DA ETCMOTD
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L.SHELL .DA SHELL
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.DA 0
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*--------------------------------------
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CS.INIT clc
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CS.INIT.RTS rts
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*--------------------------------------
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CS.RUN >LDYAI 33 Enough for HASH
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>SYSCALL GetMem
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bcs CS.INIT.RTS
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>STYA ZPGetLinePtr
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stx ZPhGetLine
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>LDYA L.ETCISSUE
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jsr CS.RUN.DUMPFILE
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lda #0
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>PUSHA ROOT user
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>PUSHWZ Dry Run, no output
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>SYSCALL GetPWUID
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bcc CS.RUN.AUTH
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>LDYA L.MSG.NOAUTH
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jsr CS.RUN.StrOut
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bcs .9
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ldy #S.PS.hSID
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lda (pPS),y
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tax
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lda S.Table.hSession-1,x
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sta hSession
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jmp CS.RUN.EXEC
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.9 rts
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*--------------------------------------
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CS.RUN.AUTH lda #3
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sta ZPRetryCnt
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.1 >LDYA L.MSG.LOGIN
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jsr CS.RUN.StrOut
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bcs .9
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lda #16
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clc
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jsr CS.RUN.GetLine
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bcs .9
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>PUSHWZ Dry Run
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>LDYA ZPGetLinePtr
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>SYSCALL GetPWName
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ror ZPbValidUser
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sta ZPUID
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>LDYA L.MSG.PASSWORD
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jsr CS.RUN.StrOut
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bcs .9
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lda #32
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sec
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jsr CS.RUN.GetLine
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bcs .9
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>LDYA L.MSG.CRLF
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jsr CS.RUN.StrOut
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bcs .9
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jsr CS.RUN.CHECKPWD
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bcs .8
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jsr CS.RUN.SetUserSession
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bcs .9
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jmp CS.RUN.EXEC
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.8 >LDYA L.MSG.BAD
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>SYSCALL PutS
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bcs .9
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dec ZPRetryCnt
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beq .99
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jmp .1
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.99 lda #E.IUSR
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sec
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.9 rts
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*--------------------------------------
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CS.RUN.SetUserSession
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ldx #S.SESSION.NAME P+UID+GID
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ldy #S.PW.NAME-1
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jsr CS.RUN.AddStrLen NAME len
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inx
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ldy #S.PW.GECOS-1
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jsr CS.RUN.AddStrLen GECOS len
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inx
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ldy #S.PW.DIR-1
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jsr CS.RUN.AddStrLen DIR len
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inx
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ldy #S.PW.SHELL-1
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jsr CS.RUN.AddStrLen SHELL len
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txa
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tay
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lda #0
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>SYSCALL GetMem
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bcs .9
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>STYA ZPStrPtr
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stx hSession
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* clc
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ldy #S.PW.GID
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lda (ZPPWPtr),y
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tax
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bne .5
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sec
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.5 ldy #S.PW.UID
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lda (ZPPWPtr),y
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bne .6
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sec
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.6 lda #0
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ror
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jsr CS.RUN.AddByte PRIV
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lda (ZPPWPtr),y
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jsr CS.RUN.AddByte UID
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txa
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jsr CS.RUN.AddByte GID
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ldy #S.PW.NAME
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jsr CS.RUN.AddStr
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ldy #S.PW.GECOS
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jsr CS.RUN.AddStr
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ldy #S.PW.DIR
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jsr CS.RUN.AddStr
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ldy #S.PW.SHELL
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jsr CS.RUN.AddStr
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lda #0
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jsr CS.RUN.AddByte
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clc
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.9 rts
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*--------------------------------------
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CS.RUN.CHECKPWD rol ZPbValidUser
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bcs CS.RUN.CHECK.9
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>LDYAI S.PW
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>SYSCALL GetMem
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bcs CS.RUN.CHECK.9
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>STYA ZPPWPtr
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stx ZPhPW
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pha
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>PUSHB ZPUID
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pla
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>PUSHYA
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>SYSCALL GetPWUID
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bcs CS.RUN.CHECK.9
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>PUSHW ZPGetlinePtr
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>PUSHW ZPGetlinePtr
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>SYSCALL MD5
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lda ZPPWPtr
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clc
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adc #S.PW.PASSWD
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tay
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lda ZPPWPtr+1
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adc /S.PW.PASSWD
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>PUSHYA
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>LDYA ZPGetlinePtr
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>SYSCALL strcmp
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bcc CS.RUN.CHECK.9
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jsr CS.CLEANUP.hPW
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sec
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CS.RUN.CHECK.9 rts
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*--------------------------------------
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CS.RUN.EXEC ldx #1
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.1 lda S.Table.hSession-1,x
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beq .2
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inx
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cpx #K.USR.MAX+1
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bne .1
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lda #E.OOH
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* sec
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rts
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.2 stx ZPNewSID
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ldy #S.PS.hSID
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lda (pPS),y
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sta ZPOldSID
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txa
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sta (pPS),y
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lda hSession
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sta S.Table.hSession-1,x
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ldy #S.PS.hStdIn
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lda (pPS),y
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sta S.Table.hFILE-1,x
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>LDYA L.ETCMOTD
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jsr CS.RUN.DumpFile
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jsr CS.CLEANUP
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>PUSHW L.SHELL
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>PUSHBI S.PS.F.HOLD
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>SYSCALL ExecL
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bcs .9
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>SLEEP
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ldx ZPNewSID
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lda S.Table.hSession-1,x
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stz S.Table.hSession-1,x
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stz S.Table.hFILE-1,x
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>SYSCALL FreeMem
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ldy #S.PS.hSID
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lda ZPOldSID
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sta (pPS),y
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sec
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.9 rts
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*--------------------------------------
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CS.RUN.AddStrLen
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.1 inx
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iny
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lda (ZPPWPtr),y
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bne .1
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rts
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*--------------------------------------
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CS.RUN.AddStr lda (ZPPWPtr),y
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jsr CS.RUN.AddByte
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iny
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tax
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bne CS.RUN.AddStr
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rts
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*--------------------------------------
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CS.RUN.AddByte sta (ZPStrPtr)
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inc ZPStrPtr
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bne .8
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inc ZPStrPtr+1
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.8 rts
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*--------------------------------------
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CS.RUN.GetLine sta ZPGetLineMax
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ror ZPbGetLineSecret
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stz ZPGetLineLen
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stz ZPbEsc
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.1 >SYSCALL getchar
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bcs .9
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bit ZPbEsc
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bpl .11
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* clc
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ror ZPbEsc
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cmp #'D'
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bne .1
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bra .3
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.11 cmp #C.DEL
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beq .3
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cmp #C.SPACE
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bcc .2
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ldy ZPGetLineLen
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cpy ZPGetLineMax
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beq .1
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sta (ZPGetLinePtr),y
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inc ZPGetLineLen
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bit ZPbGetLineSecret
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bmi .1
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>SYSCALL putchar
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bra .1
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.2 cmp #3 Ctrl-C
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beq .9
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cmp #C.CR
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beq .8
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cmp #C.ESC
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bne .1
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* sec
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ror ZPbEsc
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bra .1
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.3 ldy ZPGetLineLen
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beq .1
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dec ZPGetLineLen
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bit ZPbGetLineSecret
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bmi .1
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>LDYA L.MSG.BS
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jsr CS.RUN.StrOut
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bra .1
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.8 ldy ZPGetLineLen
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lda #0
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sta (ZPGetLinePtr),y
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clc
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.9 rts
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*--------------------------------------
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CS.RUN.StrOut >PUSHYA
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>PUSHBI 0
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>SYSCALL PrintF
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rts
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*--------------------------------------
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CS.RUN.DumpFile >PUSHYA
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>PUSHBI O.RDONLY+O.TEXT
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>PUSHBI S.FI.T.TXT
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>PUSHWZ Aux type
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>SYSCALL FOpen
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bcs .9
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stx ZPhFile
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>LDYAI 256
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>SYSCALL GetMem
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bcs .99
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>STYA ZPBufPtr
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stx ZPhBuf
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.1 >PUSHWI 256
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>PUSHW ZPBufPtr
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lda ZPhFile
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>SYSCALL fgets
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bcs .7
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>PUSHW ZPBufPtr
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>PUSHWI 0
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>SYSCALL Expand
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bcc .2
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.99 php
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pha
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jsr .8
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pla
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plp
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.9 rts
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.2 phx
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>SYSCALL PutS
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pla
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>SYSCALL FreeMem
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bra .1
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.7 lda ZPhBuf
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>SYSCALL FreeMem
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.8 lda ZPhFile
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>SYSCALL FClose
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rts
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*--------------------------------------
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CS.DOEVENT
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sec
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rts
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*--------------------------------------
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CS.QUIT
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CS.CLEANUP lda ZPhGetLine
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beq CS.CLEANUP.hPW
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stz ZPhGetLine
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>SYSCALL FreeMem
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CS.CLEANUP.hPW lda ZPhPW
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beq .8
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stz ZPhPW
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>SYSCALL FreeMem
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.8 clc
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rts
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*--------------------------------------
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CS.END
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*--------------------------------------
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MSG.NOAUTH .AS "\r\n\r\nA2osX-Login:No ETC/PASSWD file present, Logged as ROOT.\r\n"
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.AS "Consider adding ROOT password with USERADD command.\r\n"
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MSG.CRLF .AZ "\r\n"
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MSG.LOGIN .AZ "\r\nlogin:"
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MSG.PASSWORD .AZ "\r\npassword:"
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MSG.BAD .AZ "Bad user or password"
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MSG.BS .DA #C.BS,#C.SPACE,#C.BS,#0
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ETCISSUE .AZ "${ROOT}etc/issue"
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ETCMOTD .AZ "${ROOT}etc/motd"
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SHELL .AZ "${SHELL}"
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*--------------------------------------
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.DUMMY
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.OR 0
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DS.START
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DS.END .ED
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*--------------------------------------
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MAN
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SAVE USR/SRC/SBIN/LOGIN.S
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ASM
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