A2osX/SBIN/SHELL.S.txt
2018-11-15 16:04:14 +01:00

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NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
.LIST OFF
.OP 65C02
.OR $2000
.TF SBIN/SHELL
*--------------------------------------
CSH .EQ 0
*--------------------------------------
CL.MAX .EQ 127
History.MAX .EQ 256
CMD.STACK.MAX .EQ 8
*--------------------------------------
C.STARTPROC .EQ 0
C.CD .EQ 2
C.DATE .EQ 4
C.ECHO .EQ 6
C.EXIT .EQ 8
C.IF .EQ 10
C.MD .EQ 12
C.PAUSE .EQ 14
C.PWD .EQ 16
C.RD .EQ 18
C.READ .EQ 20
C.REN .EQ 22
C.SET .EQ 24
C.SLEEP .EQ 26
C.TIME .EQ 28
*--------------------------------------
C.ELSE .EQ 30
C.FI .EQ 32
*--------------------------------------
.INB INC/MACROS.I
.INB INC/A2OSX.I
.INB INC/MLI.I
.INB INC/MLI.E.I
*--------------------------------------
ZPPtr1 .EQ ZPBIN
ZPPtr2 .EQ ZPBIN+2
ZPPtr3 .EQ ZPBIN+4
ZPCLBuf .EQ ZPBIN+6
ZPArgVBuf .EQ ZPBIN+8
ZPFileBufPtr .EQ ZPBIN+10
ZPCLBufPtr .EQ ZPBIN+12
.DO CSH=1
ZPCSHSymbols .EQ ZPBIN+14
ZPCSHData .EQ ZPBIN+16
ZPCSHValue .EQ ZPBIN+18
ZPCSHStack .EQ ZPBIN+20
.FIN
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA #S.PS.F.EVENT S.PS.F
.DA #0
.DA CS.END-CS.START CS
.DA DS.END-DS.START DS
.DA #64 SS
.DO CSH=1
.DA #22 ZP
.ELSE
.DA #14 ZP
.FIN
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
*--------------------------------------
L.MSG.GREETINGS .DA MSG.GREETINGS
L.MSG.PROMPT .DA MSG.PROMPT
L.MSG.TRACE .DA MSG.TRACE
L.MSG.ECHOCRLF .DA MSG.ECHOCRLF
L.MSG.BATCHERR .DA MSG.BATCHERR
L.MSG.ERROR .DA MSG.ERROR
L.MSG.PRINTENV .DA MSG.PRINTENV
L.MSG.PID .DA MSG.PID
L.ENV.PATH .DA ENV.PATH
L.ENV.PWD .DA ENV.PWD
L.ENV.PS1 .DA ENV.PS1
L.ENV.HOME .DA ENV.HOME
L.FMT.DATE .DA FMT.DATE
L.FMT.TIME .DA FMT.TIME
J.ESC .DA CL.BS left arrow
.DA HIS.GetNext
.DA HIS.GetPrev
.DA CL.NAK right arow
L.CL.IO .DA CL.IO
J.CL.IO .DA CL.IO.AMP
.DA CL.IO.PIPE
.DA CL.IO.IN
.DA CL.IO.OUTA
.DA CL.IO.OUT
.DA CL.IO.1OUTA
.DA CL.IO.1OUT
.DA CL.IO.2OUTA
.DA CL.IO.2OUT
L.CMD.INT .DA CMD.INT
J.CMD.INT .DA Cmd.INT.STARTPROC
.DA Cmd.INT.CD
.DA Cmd.INT.DATE
.DA Cmd.INT.ECHO
.DA Cmd.INT.EXIT
.DA Cmd.INT.IF
.DA Cmd.INT.MD
.DA Cmd.INT.PAUSE
.DA Cmd.INT.PWD
.DA Cmd.INT.RD
.DA Cmd.INT.READ
.DA Cmd.INT.REN
.DA Cmd.INT.SET
.DA Cmd.INT.SLEEP
.DA Cmd.INT.TIME
.DA Cmd.INT.ELSE
.DA Cmd.INT.FI
L.CMD.IF.TOKEN1 .DA CMD.IF.TOKEN1
L.CMD.IF.TOKEN2 .DA CMD.IF.TOKEN2
J.CMD.IF.TOKEN2 .DA CMD.IF.D
.DA CMD.IF.E
.DA CMD.IF.F
L.CMD.IF.TOKEN3 .DA CMD.IF.TOKEN3
L.ERR.Codes .DA ERR.Codes
L.ERR.Messages .DA ERR.Messages
.DO CSH=1
.INB /A2OSX.SRC/SBIN/SHELL.R.CSH
.FIN
.DA 0
*--------------------------------------
CS.INIT clc
CS.INIT.RTS rts
*--------------------------------------
CS.RUN jsr SetPWD
jsr CMD.Init
bcs CS.INIT.RTS
lda #1
>SYSCALL ArgV
bcs .1 no arg, continue starting interactive
>SYSCALL LoadTxtFile
bcs CS.INIT.RTS
txa
>STA.G hFileBuf
>SYSCALL GetMemPtr
>STYA ZPFileBufPtr
.DO CSH=1
jsr CSH.Init
.FIN
bra CS.RUN.LOOP
.1 jsr HIS.Init
bcs CS.INIT.RTS
>PUSHWI K.VER
>PUSHBI 2
>LDYA L.MSG.GREETINGS
>SYSCALL printf
bcs CS.INIT.RTS
*--------------------------------------
CS.RUN.LOOP jsr CL.Reset
jsr IO.Reset
.1 jsr CheckSleep
beq .3
>SLEEP
>SYSCALL GetChar
bcs .2
cmp #3 Ctrl-C
bne .1
>LDA.G hFileBuf batch mode ?
bne .8
bra .1
.2 tay
beq .1
rts I/O err
.3 >LDA.G bPause
bpl .6
.4 >SLEEP
>SYSCALL GetChar
bcc .5 got one
tay
beq .4 no char
rts I/O err
.5 cmp #3 Ctrl-C
bne .60
>LDA.G hFileBuf batch mode ?
bne .8
bra .61
.60 cmp #C.CR
bne .4
.61 >STZ.G bPause
bra .62
.6 >LDA.G hVarName read mode ?
bne .7
.62 >LDA.G hFileBuf batch mode ?
beq CS.RUN.INTERCATIVE
jmp CS.RUN.BATCH
.7 jmp CS.RUN.READ
.8 lda #3 User Interrupt
.9 sec
rts
*--------------------------------------
CS.RUN.INTERCATIVE
jsr CL.PrintPrompt
bcs .9
.1 >SLEEP
>SYSCALL GetChar
bcc .2
tay
beq .1 no char
.9 rts I/O error
.2 cmp #C.EOF ....or Ctrl-D
beq .9 CS
jsr CL.CHARIN
>LDA.G CL.bExec Something to execute ?
bpl .1
lda (ZPCLBuf)
beq .8 Empty line
jsr HIS.Add
jmp CS.RUN.Exec
.8 jmp CS.RUN.LOOP
*--------------------------------------
CS.RUN.READ
.1 >SLEEP
>SYSCALL GetChar
bcs .1 no char
jsr CL.CHARIN
>LDA.G CL.bExec
bpl .1
lda (ZPCLBuf)
bne .2
>LDA.G hVarName
>SYSCALL GetMemPtr
>SYSCALL UnSetEnv
bra .7
.2 >PUSHW ZPCLBuf
>LDA.G hVarName
>SYSCALL GetMemPtr
>SYSCALL SetEnv
.7 php
pha
>LDA.G hVarName
>SYSCALL freemem
>STZ.G hVarName
>STA.G bREAD.S
pla
plp
.8 jmp CS.RUN.LOOP.END
*--------------------------------------
CS.RUN.BATCH >SYSCALL GetChar
bcs .2
cmp #3 test Ctrl-c
bne .1
* sec
.9 rts
.1 cmp #19 test Ctrl-s
bne .2
lda #$80
>STA.G bPause
jmp CS.RUN.LOOP.END
.2 .DO CSH=1
jsr CSH.Run
.ELSE
jsr CL.GetLine
.FIN
bcc .7
cmp #C.EOF
bne .3
lda #$ff
>STA.G bExit
inc
clc
bra CS.RUN.LOOP.END
.3 sec
bra CS.RUN.LOOP.END
.7 >LDA.G CL.bExec
bpl CS.RUN.LOOP.80
lda (ZPCLBuf)
beq CS.RUN.LOOP.80
>LDA.G bSET.X
beq CS.RUN.Exec
>PUSHW ZPCLBuf
>PUSHBI 2
>LDYA L.MSG.TRACE
>SYSCALL printf
bcs .9
*--------------------------------------
CS.RUN.Exec jsr CL.Parse
bcs CS.RUN.LOOP.END
lda (ZPArgVBuf)
beq CS.RUN.LOOP.8
jsr CMD.Exec
*--------------------------------------
CS.RUN.LOOP.END ldy #S.PS.RC
sta (pPs),y
bcc CS.RUN.LOOP.8
>LDA.G hFileBuf batch mode ?
beq .1
jsr IO.PrintBatchErrMsg
bcs CS.RUN.LOOP.RTS
.1 ldy #S.PS.RC
lda (pPs),y
jsr IO.PrintErrMsg
bcs CS.RUN.LOOP.RTS
CS.RUN.LOOP.8 >LDA.G bExit
beq CS.RUN.LOOP.80
lda #0
sec
CS.RUN.LOOP.RTS rts
CS.RUN.LOOP.80 jmp CS.RUN.LOOP
*--------------------------------------
CS.DOEVENT lda (pEvent)
bpl .9
jsr CheckSleep
beq .9
* ldy #Sleep already set by CheckSleep
ldx #4
clc
.1 lda (pData),y
sbc #0
sta (pData),y
iny
dex
bne .1
.9 sec
rts
*--------------------------------------
CS.QUIT .DO CSH=1
jsr CSH.Quit
.FIN
jsr HIS.Quit
jsr CMD.Quit
clc
rts
*--------------------------------------
CheckSleep ldy #Sleep+3
lda (pData),y
dey
ora (pData),y
dey
ora (pData),y
dey
ora (pData),y
rts
*--------------------------------------
SetPWD ldy #S.PS.hPREFIX
lda (pPs),y
SetPWD.I >SYSCALL GetMemPtr
>PUSHYA
>LDYA L.ENV.PWD
>SYSCALL SetEnv
rts
*--------------------------------------
Lookup >STYA ZPPtr2
>PULLW ZPPtr1
ldx #0
.1 phx
>PUSHW ZPPtr2
>LDYA ZPPtr1
>SYSCALL StrCaseCmp
bcs .2
plx
>LDYA ZPPtr2
clc
rts
.2 inc ZPPtr2
bne .3
inc ZPPtr2+1
.3 lda (ZPPtr2)
bne .2
inc ZPPtr2
bne .4
inc ZPPtr2+1
.4 plx
inx
inx
lda (ZPPtr2) Array Ending 0, must be an external Cmd....
bne .1
sec
rts
*--------------------------------------
.INB /A2OSX.SRC/SBIN/SHELL.S.CL
.INB /A2OSX.SRC/SBIN/SHELL.S.CMD
.INB /A2OSX.SRC/SBIN/SHELL.S.IO
.INB /A2OSX.SRC/SBIN/SHELL.S.HIS
.DO CSH=1
.INB /A2OSX.SRC/SBIN/SHELL.S.CSH
.FIN
*--------------------------------------
CS.END
*--------------------------------------
MSG.GREETINGS .AZ "\r\nA2osX-Shell %d.%d\r\n\r\n"
MSG.PROMPT .AZ "\e[7h$ "
MSG.TRACE .AS ">%s"
MSG.ECHOCRLF .AZ "\r\n"
MSG.BATCHERR .AZ "^\r\nLine #%D:"
MSG.ERROR .AZ "[$%h]:%S.\r\n"
MSG.PRINTENV .AZ "%s=%s\r\n"
MSG.PID .AZ "PID=%d\r\n"
FMT.DATE .AZ "%A (%w), %B %d %Y"
FMT.TIME .AZ "%H:%M:%S (%I:%M:%S%p)"
*--------------------------------------
ENV.PATH .AZ "PATH"
ENV.PWD .AZ "PWD"
ENV.PS1 .AZ "PS1"
ENV.HOME .AZ "HOME"
*--------------------------------------
* https://www.tldp.org/LDP/abs/html/io-redirection.html
*--------------------------------------
CL.IO .AZ "&"
.AZ "|"
.AZ "<"
.AZ ">>"
.AZ ">"
.AZ "1>>"
.AZ "1>"
.AZ "2>>"
.AZ "2>"
.HS 00
*--------------------------------------
CMD.INT .AZ "STARTPROC"
.AZ "CD"
.AZ "DATE"
.AZ "ECHO"
.AZ "EXIT"
.AZ "IF"
.AZ "MD"
.AZ "PAUSE"
.AZ "PWD"
.AZ "RD"
.AZ "READ"
.AZ "REN"
.AZ "SET"
.AZ "SLEEP"
.AZ "TIME"
.AZ "ELSE"
.AZ "FI"
.HS 00
*--------------------------------------
CMD.IF.TOKEN1 .AZ "!["
.AZ "["
.HS 00
CMD.IF.TOKEN2 .AZ "-d"
.AZ "-e"
.AZ "-f"
.HS 00
CMD.IF.TOKEN3 .AZ "="
.AZ "!="
.AZ "-eq"
.AZ "-ne"
.AZ "-lt"
.AZ "-le"
.AZ "-gt"
.AZ "-ge"
.HS 00
CMD.IF.TOKEN3.BITS
.DA #%000
.DA #%000
.DA #%001
.DA #%110
.DA #%100
.DA #%101
.DA #%010
.DA #%011
*--------------------------------------
.DO CSH=1
.INB /A2OSX.SRC/SBIN/SHELL.C.CSH
.FIN
.INB /A2OSX.SRC/X.ERRORS.S
*--------------------------------------
EscChars .AS 'DBAC'
EscChars.Cnt .EQ *-EscChars
*--------------------------------------
.DUMMY
.OR 0
DS.START
hFileBuf .BS 1 batch mode
hVarName .BS 1 read mode
bEscMode .BS 1
bPause .BS 1
bExit .BS 1
bSET.X .BS 1
bECHO.N .BS 1
bREAD.S .BS 1
Sleep .BS 4
CL.Ptr .BS 1
CL.Len .BS 1
CL.bExec .BS 1
CMD.hCLBuf .BS 1
CMD.IntCmd .BS 1
CMD.hCmdLine .BS 1
CMD.hArgVBuf .BS 1
CMD.ArgIndex .BS 1
CMD.Operator .BS 1
CMD.NumArg1 .BS 4
CMD.NumArg2 .BS 4
CMD.PSFlags .BS 1
CMD.Stat .BS S.STAT
CMD.Time .BS S.TIME
CMD.STACK.PTR .BS 1
CMD.STACK .BS CMD.STACK.MAX
HIS.hBuf .BS 1
HIS.Count .BS 1
HIS.Index .BS 1
IO.hIn .BS 1
IO.hOut .BS 1
IO.hErr .BS 1
.DO CSH=1
.INB /A2OSX.SRC/SBIN/SHELL.G.CSH
.FIN
DS.END .ED
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SBIN/SHELL.S
ASM