A2osX/SBIN/SHELL.S.CMD.txt

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NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
2015-10-19 20:35:00 +00:00
.LIST OFF
*--------------------------------------
CMD.Init >LDYAI CmdLine.MAX+1
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>SYSCALL GetMem
bcs .9
>STYA ZPCMDBuf
txa
>STA.G hCmdBuf
.9 rts
*--------------------------------------
CMD.Quit >LDA.G hCmdBuf
beq .9
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>SYSCALL FreeMem
.9 rts
*--------------------------------------
* ZPCMDBuf : Remove extra SPACE & comment
*--------------------------------------
Cmd.Parse >LDYA ZPCMDBuf
>STYA ZPPtr1
ldy #0
lda (ZPCMDBuf) empty line...quit
beq .9
.1 jsr Cmd.Parse.NextC
beq .8 no more char, exit
cmp #' ' skip leading spaces
beq .1
cmp #'#' Comment ?
beq .8 ignore remaining chars
.3 sta (ZPCMDBuf),y add char to buffer
iny
jsr Cmd.Parse.NextC
beq .8
cmp #' '
bne .3
sta (ZPCMDBuf),y add One SPACE to buffer
iny
.5 jsr Cmd.Parse.NextC
beq .8
cmp #' '
beq .5 skip additional spaces
bne .3 no more space, add next word...
.8 lda #0
sta (ZPCMDBuf),y
.9 tya
>STA.G CmdBuflen
rts
Cmd.Parse.NextC lda (ZPPtr1)
beq .8
inc ZPPtr1
bne .8
inc ZPPtr1+1 never Z
.8 rts
*--------------------------------------
* ZPCMDBuf-> Command line (formatted & not empty)
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*--------------------------------------
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CMD.Exec lda #0
>STA.G CMD.bStartProc
>STA.G CMD.hFullpath
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* SET +X
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* >LDYA ZPCMDBuf
* >SYSCALL puts
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* sta $C055
* >DEBUG
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>LDYA ZPCMDBuf
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>SYSCALL ExpandStr
>STYA ZPPtr1 Ptr to CMD ARGS
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txa
>STA.G CMD.hCmdLine
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>LDYA L.CMD.INT
>STYA ZPPtr2
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ldx #0
.3 lda (ZPPtr2)
beq Cmd.Exec.EXT Array Ending 0, must be an external Cmd....
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ldy #$ff
.4 iny
lda (ZPPtr2),y
bne .41 End of string in array
lda (ZPPtr1),y Get CMD char...
beq .8 both end with 0, found!
cmp #' '
beq .8 we reached space between CMD & ARGS....
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.41 lda (ZPPtr1),y Get CMD char...
beq .61 end of CMD.....too short...
cmp #' '
beq .61 we reached space between CMD & ARGS....
cmp #'a' To Uppercase
bcc .5
cmp #'z'+1
bcs .5
eor #$20
.5 cmp (ZPPtr2),y
beq .4
.61 iny
lda (ZPPtr2),y
bne .61
.7 inx
inx
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tya
sec
adc ZPPtr2
sta ZPPtr2
bcc .3
inc ZPPtr2+1
bra .3
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.8 jsr Cmd.Exec.GetArgs X unmodified
jmp (J.CMD.INT,x) Found an internal Cmd...
*--------------------------------------
Cmd.Exec.Done php
pha
>LDA.G CMD.hCmdLine
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>SYSCALL FreeMem
>LDA.G CMD.hFullpath
beq .1
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>SYSCALL FreeMem
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>STZ.G CMD.hFullpath
.1 pla
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plp
rts
*--------------------------------------
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Cmd.Exec.EXT jsr Cmd.Exec.GetArgs
lda (ZPPtr1)
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cmp #'/' Command line is already full path, no search
bne .1
>PUSHEA.G CMD.Stat
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>LDYA ZPPtr1
>SYSCALL STAT
bcs Cmd.Exec.Done
>LDYA ZPPtr1
bra .4
.1 >LDYA L.ENV.PATH push ENVNAME=PATH for search
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>SYSCALL GetEnv get value for ENV=PATH
bcs .2 No PATH, try in CD
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jsr Cmd.Exec.EXT.Search
bcc .3
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.2 ldy #S.PS.hPREFIX not found, try in CD
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lda (pPs),y
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>SYSCALL GetMemPtr
jsr Cmd.Exec.EXT.Search
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bcs .99
.3 >LDYA ZPCMDBuf
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.4 >SYSCALL NewStr
bcs .99
txa
>STA.G CMD.hFullpath
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lda #0
sta (ZPCMDBuf) reset ZPCMDBuf for final CMD
ldy #CMD.Stat+S.STAT.P.TYPE
lda (pData),y
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cmp #$04 TXT File ?
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beq Cmd.Exec.EXT.TXT
cmp #$06 BIN File ?
beq Cmd.Exec.EXT.BIN
cmp #$ff SYS File ?
bne .9
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bra *
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.9 lda #K.E.SYN
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sec
.99 jmp Cmd.Exec.Done
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*--------------------------------------
* TXT : Launch "/PATH/SHELL /PATH/CMD ARGS"
*--------------------------------------
Cmd.Exec.EXT.TXT
lda #0 Get arg[0] = /PATH/SHELL
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>SYSCALL GetArg
>PUSHYA
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>LDYA ZPCMDBuf
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>SYSCALL StrCat
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jsr Cmd.Exec.EXT.SEP Add a space....
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*--------------------------------------
* BIN : Launch "/PATH/CMD ARGS"
*--------------------------------------
Cmd.Exec.EXT.BIN
>LDA.G CMD.hFullpath
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>SYSCALL GetMemPtr
>PUSHYA
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>LDYA ZPCMDBuf
>SYSCALL StrCat
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lda (ZPPTR2) Some ARGS ?
beq .1
jsr Cmd.Exec.EXT.SEP Add a space....
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>PUSHW ZPPTR2
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>LDYA ZPCMDBuf
>SYSCALL StrCat
.1 >LDA.G CMD.bStartProc
asl
>LDYA ZPCMDBuf
bcs .2 startproc
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>SYSCALL ExecPSNewEnv
jmp Cmd.Exec.Done
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.2 >SYSCALL CreatePSNewEnv
jmp Cmd.Exec.Done
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*--------------------------------------
Cmd.Exec.EXT.Search
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pha
phy
>PUSHEA.G CMD.Stat
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>PUSHW ZPCMDBuf push dest full path
ply
pla
>PUSHYA push search list
>LDYA ZPPtr1 push CMD
>SYSCALL FileSearch
rts
*--------------------------------------
Cmd.Exec.EXT.SEP
ldy #$ff
.1 iny
lda (ZPCMDBuf),y
bne .1
lda #' '
sta (ZPCMDBuf),y
iny
lda #0
sta (ZPCMDBuf),y
rts
*--------------------------------------
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* Internal Commands
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*--------------------------------------
Cmd.Exec.PWD ldy #S.PS.hPREFIX
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lda (pPs),y
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>SYSCALL GetMemPtr
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>SYSCALL puts
jmp Cmd.Exec.Done
*--------------------------------------
Cmd.Exec.CD lda (ZPPTR2)
bne .1
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>LDYA L.ENV.HOME
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>SYSCALL GetEnv
bcs Cmd.Exec.PWD
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>SYSCALL ExpandStr
bcs .9
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bra .4
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.1 ldy #0
.2 lda (ZPPTR2),y
tax
iny
lda (ZPPTR2),y
bne .2
cpx #'/'
beq .3
lda #'/'
sta (ZPPTR2),y
iny
lda #0
sta (ZPPTR2),y
.3 >LDYA ZPPTR2 Get ARG
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>SYSCALL RealPath
bcs .9
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.4 >STYA ZPPTR2
txa
>STA.G CMD.hFullpath
ldy #1
lda (ZPPTR2),y
beq .8 we have '/'
>PUSHEA.G CMD.Stat
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>LDYA ZPPTR2
>SYSCALL STAT
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bcs .9
ldy #CMD.Stat+S.STAT.P.TYPE
lda (pData),y
cmp #$0F Directory ?
bne Cmd.Exec.ERRSYN
.8 >LDYA ZPPTR2
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>SYSCALL NewStr
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bcs .9
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phx
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ldy #S.PS.hPREFIX
lda (pPs),y
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>SYSCALL FreeMem
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pla
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ldy #S.PS.hPREFIX
sta (pPs),y
jsr SetPWD
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clc
.9 jmp Cmd.Exec.Done
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*--------------------------------------
Cmd.Exec.ERRSYN lda #K.E.SYN
sec
jmp Cmd.Exec.Done
*--------------------------------------
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Cmd.Exec.STARTPROC
lda (ZPPTR2)
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beq Cmd.Exec.ERRSYN
lda #$ff
>STA.G CMD.bStartProc
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>LDYA ZPPTR2
>STYA ZPPTR1
jmp Cmd.Exec.EXT
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*--------------------------------------
Cmd.Exec.SET lda (ZPPTR2)
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bne Cmd.Exec.SETVAR
* No arg, print all ENV
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ldy #S.PS.hENV
lda (pPs),y
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>SYSCALL GetMemPtr
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>STYA ZPPTR1
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.1 lda (ZPPTR1)
beq .8 Ending 0 ?
ldy #$ff
.2 iny
lda (ZPPTR1),y
bne .2
tya
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sec
adc ZPPTR1
sta ZPPTR2
lda #0
adc ZPPTR1+1
sta ZPPTR2+1
>PUSHW ZPPTR2 Push value
>PUSHW ZPPTR1 Push name
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jsr Cmd.Exec.SET.PRINT
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bcs .9
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ldy #$ff
.3 iny
lda (ZPPTR2),y
bne .3
tya
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sec
adc ZPPTR2
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sta ZPPTR1
lda #0
adc ZPPTR2+1
sta ZPPTR1+1
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bra .1
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.8 clc
.9 jmp Cmd.Exec.Done
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*--------------------------------------
Cmd.Exec.SETVAR cmp #'=' string is '=value' ?
beq .99 syntax error
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ldy #0
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.1 iny
lda (ZPPTR2),y
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beq .3 no =, GetEnv
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cmp #'=' ARGS contains =, PutEnv
bne .1
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iny
lda (ZPPTR2),y
beq .2 "VAR=" go UnsetEnv
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>LDYA ZPPTR2 String is VAR=VALUE...
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>SYSCALL PutEnv
jmp Cmd.Exec.Done
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.2 dey String is "VAR=", Remove ending '='
lda #0
sta (ZPPTR2),y
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>LDYA ZPPTR2 String is "VAR"...
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>SYSCALL UnsetEnv
jmp Cmd.Exec.Done
* Print requested VAR
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.3 >LDYA ZPPTR2
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>SYSCALL GetEnv
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bcs .8
>PUSHYA push value
>PUSHW ZPPTR2 push name
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jsr Cmd.Exec.SET.PRINT
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.8 clc
.9 jmp Cmd.Exec.Done
.99 jmp Cmd.Exec.ERRSYN
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*--------------------------------------
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Cmd.Exec.SET.PRINT
>PUSHBI 4
>LDYA L.MSG.PRINTENV
>SYSCALL printf
rts
*--------------------------------------
Cmd.Exec.DATE sec
.HS 90 bcc
Cmd.Exec.TIME clc
php
>LEA.G CMD.Time
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>SYSCALL Time
>PUSHW ZPCMDBuf
plp
bcc .1
>PUSHW L.FMT.DATE
bra .2
.1 >PUSHW L.FMT.TIME
.2 >PUSHEA.G CMD.Time
>SYSCALL StrFTime
>LDYA ZPCMDBuf
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>SYSCALL puts
jmp Cmd.Exec.Done
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*--------------------------------------
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Cmd.Exec.ECHO >LDYA ZPPtr2
>SYSCALL puts
jmp Cmd.Exec.Done
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*--------------------------------------
Cmd.Exec.READ lda (ZPPtr2)
beq .9
lda #0
>STA.G bSecureRead
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>STA.G CMD.VarName.LEN
lda pData
clc
adc #CMD.VarName
sta ZPPTR1
lda pData+1
adc #0
sta ZPPTR1+1
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.1 lda (ZPPtr2)
beq .8
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cmp #' '
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bne .11
jsr Cmd.Exec.GetNextP2
bra .1
.11 cmp #'-'
bne .7
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jsr Cmd.Exec.GetNextP2
beq .9
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cmp #'S'
bne .2
lda #$80
>STA.G bSecureRead
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jsr Cmd.Exec.GetNextP2
beq .8
cmp #' '
bne .9
bra .1
.2 cmp #'P'
bne .9
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jsr Cmd.Exec.GetNextP2
beq .9
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cmp #' '
bne .9
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jsr Cmd.Exec.GetNextP2
beq .9
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cmp #'"'
bne .9
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.3 jsr Cmd.Exec.GetNextP2
beq .9
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cmp #'"'
beq .1
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>SYSCALL PutChar
bcs .99
bra .3
.9 jmp Cmd.Exec.ERRSYN
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.7 >LDA.G CMD.VarName.LEN
cmp #VarLen.MAX
beq .9
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pha
inc
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sta (pData),y
ply
lda (ZPPtr2)
sta (ZPPTR1),y
iny
lda #0
sta (ZPPTR1),y
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jsr Cmd.Exec.GetNextP2
beq .1
cmp #' '
beq .1
bra .7
.8 >LDA.G CMD.VarName.LEN No var name ? SYNERR
beq .9
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lda #$ff
>STA.G bReadMode
clc
.99 jmp Cmd.Exec.Done
*--------------------------------------
Cmd.Exec.SLEEP lda (ZPPtr2)
beq .9
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>LDYA ZPPtr2
>SYSCALL AToL
bcs .9
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>PULLL.G Sleep
jmp Cmd.Exec.Done
.9 jmp Cmd.Exec.ERRSYN
*--------------------------------------
Cmd.Exec.PAUSE lda #$FF
>STA.G bPause
clc
jmp Cmd.Exec.Done
*--------------------------------------
Cmd.Exec.EXIT lda #$FF
>STA.G bExit
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clc
jmp Cmd.Exec.Done
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*--------------------------------------
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Cmd.Exec.IF >STZ.G CMD.IFNOT
lda (ZPPtr2)
beq .9
cmp #'!'
bne .1
lda #$ff
sta (pData),y Y = #CMD.IFNOT
jsr Cmd.Exec.GetNextP2NB
beq .9
cmp #'('
bne .9
jsr Cmd.Exec.GetNextP2NB
beq .9
cmp #'-' -d -e -f
bne .1
jsr Cmd.Exec.GetNextP2NB
beq .9
.1 >DEBUG
>LDYA ZPPtr2
>SYSCALL puts
jmp Cmd.Exec.Done
.9 jmp Cmd.Exec.ERRSYN
*--------------------------------------
Cmd.Exec.GetArgs
ldy #$ff CMD Len
.1 iny
lda (ZPPtr1),y Get CMD char...
beq .2
cmp #' ' we reached blank between CMD ARGS
bne .1
lda #0
sta (ZPPtr1),y Cut CMD with the ending 0
iny
.2 tya Y=CMD len+0, if ARGS="" Y=
clc
adc ZPPtr1
sta ZPPtr2
lda ZPPtr1+1
adc #0
sta ZPPtr2+1 ZPPtr2->ARGS or CMD ending 0 if empty
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* >LDYA L.CMD.IOR
* >STYA ZPPtr2
* ldx #0
*.3 lda (ZPPtr2)
rts
*--------------------------------------
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Cmd.Exec.GetArg1
*--------------------------------------
Cmd.Exec.GetNextP2NB
.1 jsr Cmd.Exec.GetNextP2
beq .9
cmp #C.SPACE
beq .1
.9 rts
*--------------------------------------
Cmd.Exec.GetNextP2
inc ZPPtr2
bne .1
inc ZPPtr2+1
.1 lda (ZPPtr2)
rts
*--------------------------------------
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MAN
SAVE /A2OSX.SRC/SBIN/SHELL.S.CMD
LOAD /A2OSX.SRC/SBIN/SHELL.S
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ASM