A2osX/BIN/SH.S.txt
2021-07-24 22:42:23 +02:00

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NEW
AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
.TF bin/sh
*--------------------------------------
HIS.MAX .EQ 10
HISTORY.MAX .EQ 256
CORE.STACK.MAX .EQ 128
PUSHD.STACK.MAX .EQ 4
*--------------------------------------
C... .EQ 0
C.. .EQ 2
C.CD .EQ 4
C.NOHUP .EQ 6
C.DATE .EQ 8
C.ECHO .EQ 10
C.EXIT .EQ 12
C.MD .EQ 14
C.PAUSE .EQ 16
C.PWD .EQ 18
C.RD .EQ 20
C.READ .EQ 22
C.REN .EQ 24
C.SET .EQ 26
C.SLEEP .EQ 28
C.SHIFT .EQ 30
C.PUSHD .EQ 32
C.POPD .EQ 34
C.FUNCTION .EQ 36
C.CALL .EQ 38
C.BREAK .EQ 40
C.SWITCH .EQ 42
C.CASE .EQ 44
C.DEFAULT .EQ 46
*--------------------------------------
C.FOR .EQ 48
C.FOR.LIST .EQ 0
C.FOR.FILEEXEC .EQ 1
C.WHILE .EQ 50
C.IF .EQ 52
C.NEXT .EQ 54
C.LOOP .EQ 56
C.ELSE .EQ 58
C.FI .EQ 60
C.END .EQ 62
*--------------------------------------
C.CLEXEC .EQ 63
*--------------------------------------
.INB inc/macros.i
.INB inc/a2osx.i
.INB inc/mli.i
.INB inc/mli.e.i
*--------------------------------------
.DUMMY
.OR ZPBIN
ZS.START
ZPCLBuf .BS 2
ZPInputBuf .BS 2
ZPInputBufPtr .BS 2
ZPInputCmdPtr .BS 2
ZPArgVBuf .BS 2
ZPArgVBufPrev .BS 2
ZPArgVBufPtr .BS 2
ZPVarNamePtr .BS 2
CORE.PSFlags .BS 1
CORE.IntCmd .BS 1
CORE.Operator .BS 1
CORE.LogicOp .BS 1
CORE.TestResult .BS 1
CORE.PrevTestResult .BS 1
ZPTmpW .BS 2
ZPPtr1 .BS 2
ZPPtr2 .BS 2
M32.ACC .BS 4
ZS.END .ED
*--------------------------------------
* 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 Code Size (without Constants)
.DA DS.END-DS.START Data SegmentSize
.DA #64 Stack Size
.DA #ZS.END-ZS.START Zero Page Size
.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.HIS .DA MSG.HIS
L.MSG.HISPROMPT .DA MSG.HISPROMPT
L.MSG.HISROMPTCLR .DA MSG.HISROMPTCLR
L.MSG.PROMPT .DA MSG.PROMPT
L.MSG.PROMPTCRLF .DA MSG.PROMPTCRLF
L.MSG.TRACE .DA MSG.TRACE
L.MSG.ECHOCRLF .DA MSG.ECHOCRLF
L.MSG.BATCHLINE .DA MSG.BATCHLINE
L.MSG.BATCHERR .DA MSG.BATCHERR
L.MSG.ERROR .DA MSG.ERROR
L.MSG.PID .DA MSG.PID
L.FMT.DATE .DA FMT.DATE
L.FMT.Long .DA FMT.Long
L.FMT.Byte .DA FMT.Byte
J.ESC .DA CL.BS left arrow
.DA HIS.GetNext
.DA HIS.GetPrev
.DA CL.NAK right arrow
L.CD.. .DA CD..
L.IN .DA IN
L.CMD .DA CMD
J.CMD .DA CMD...
.DA CMD..
.DA CMD.CD
.DA CMD.NOHUP
.DA CMD.DATE
.DA CMD.ECHO
.DA CMD.EXIT
.DA CMD.MD
.DA CMD.PAUSE
.DA CMD.PWD
.DA CMD.RD
.DA CMD.READ
.DA CMD.REN
.DA CMD.SET
.DA CMD.SLEEP
.DA CMD.SHIFT
.DA CMD.PUSHD
.DA CMD.POPD
.DA CMD.FUNCTION
.DA CMD.CALL
.DA CMD.BREAK
.DA CMD.SWITCH
.DA CMD.CASE
.DA CMD.DEFAULT
.DA CMD.FOR
.DA CMD.WHILE
.DA CMD.IF
.DA CMD.NEXT
.DA CMD.LOOP
.DA CMD.ELSE
.DA CMD.FI
.DA CMD.END
L.CORE.IO .DA CORE.IO
J.CORE.IO .DA CORE.IO.AMP
.DA CORE.IO.IN
.DA CORE.IO.OUTA
.DA CORE.IO.OUT
.DA CORE.IO.1OUTA
.DA CORE.IO.1OUT
.DA CORE.IO.2OUTA
.DA CORE.IO.2OUT
L.EXP.BEGIN .DA EXP.BEGIN
L.EXP.OP.UNARY .DA EXP.OP.UNARY
J.EXP.OP.UNARY .DA EXP.OP.UNARY.D
.DA EXP.OP.UNARY.E
.DA EXP.OP.UNARY.F
.DA EXP.OP.UNARY.I
.DA EXP.OP.UNARY.N
.DA EXP.OP.UNARY.X
.DA EXP.OP.UNARY.Z
L.EXP.OP.BINARY .DA EXP.OP.BINARY
L.EXP.OP.MATH .DA EXP.OP.MATH
L.EXP.OP.LOGIC .DA EXP.OP.LOGIC
L.HOME.PROFILE .DA HOME.PROFILE
L.PtrZero .DA PtrZero
L.HOME .DA HOME
L.PS1 .DA PS1
.DA 0
*--------------------------------------
CS.INIT clc
rts
*--------------------------------------
CS.RUN jsr CL.Init
jsr CORE.Init
ldy #S.PS.ARGC
lda (pPS),y
beq .2 no arg, continue starting interactive
lda #$ff
>STA.G bExitOnEOF
inc lda #0
jsr CMD.SHIFTA Remove $0 = /bin/sh
jsr GetArgV
>STYA ZPPtr1
lda (ZPPtr1)
cmp #'-'
bne .1
ldy #1
lda (ZPPtr1),y
cmp #'c'
beq .10
cmp #'C'
bne .1
.10 iny
lda (ZPPtr1),y
bne .1
* lda #0
jsr CMD.SHIFTA Remove $0 = -C
jsr GetArgV
jmp CS.RUN.CMDLINE
.1 jsr GetArgV Load SH batch file
>SYSCALL LoadTxtFile
bcs .9
phx X = loaded file hMem
jsr GetArgV Y,A = Args
plx
jsr CMD..EXEC.YAX Execute . Batch file
bcc CS.RUN.LOOP
.9 rts
*--------------------------------------
.2 jsr CMD.CD.HOME
jsr HIS.Init
bcs .9
>PUSHW L.MSG.GREETINGS
>PUSHW A2osX.KVER
>PUSHBI 2
>SYSCALL PrintF
bcs .9
>LDYA L.HOME.PROFILE
>SYSCALL LoadTxtFile
bcs CS.RUN.LOOP No profile...
>LDYA L.HOME.PROFILE
jsr CMD..EXEC.YAX Execute . ${home}profile
*--------------------------------------
CS.RUN.LOOP >SLEEP
.1 jsr CheckSleep
beq .2
ldy #S.PS.hStdIn
lda (pPS),y
>SYSCALL FEOF
bcs .9
tay
bne CS.RUN.LOOP
>SYSCALL GetChar
bcs .9 I/O err
cmp #3 Ctrl-C
bne .11
lda (pData) batch mode ?
beq CS.RUN.LOOP
>LDA.G bSET.C
beq .8
bra CS.RUN.LOOP
.11 cmp #19 test Ctrl-s
bne CS.RUN.LOOP
lda #$80
>STA.G bPause
bra CS.RUN.LOOP
*--------------------------------------
.8 lda #3 User Interrupt
sec
.9 rts
*--------------------------------------
.2 >LDA.G bPause
bpl .6
.3 >SYSCALL GetChar
bcs .9 I/O err
cmp #3 Ctrl-C
bne .4
lda (pData) batch mode ?
beq .5
>LDA.G bSET.C
beq .8
bra .5
.4 tax
>LDA.G bPause
asl $ff ?
bpl .5 not from PAUSE command
cpx #C.CR
bne .5
jsr CheckLFAfterCR Check for any extra LF
bcs .9
.5 >STZ.G bPause
*--------------------------------------
.6 lda (pData) batch mode ?
bne CS.RUN.BATCH
*--------------------------------------
CS.RUN.INTERACTIVE
jsr IO.Reset
jsr CL.Reset
jsr CL.ReadResetV
jsr CL.PrintPrompt
bcs CS.RUN.CMDLINE.9
.1 >SYSCALL GetChar
bcs CS.RUN.CMDLINE.9 I/O error
.2 cmp #C.EOF ....or Ctrl-D
beq CS.RUN.CMDLINE.9 CS
jsr CL.CHARIN
>LDA.G CL.bReady Something to execute ?
bpl .1
>PUSHW L.MSG.PROMPTCRLF
>PUSHBI 0
>SYSCALL PrintF
bcs CS.RUN.CMDLINE.9
lda (ZPCLBuf)
beq CS.RUN.LOOP.END Empty line
jsr HIS.Add
>LDYA ZPCLBuf
CS.RUN.CMDLINE >SYSCALL StrDup
bcs CS.RUN.CMDLINE.9
phx
jsr GetArgV
plx Y,A=ARGV, X=strdup
jsr CORE.Load.YAX Exec CL
bcs CS.RUN.CMDLINE.9
lda #$C0+C.CLEXEC
jsr CORE.StkPush
bra CS.RUN.LOOP.RUN
CS.RUN.CMDLINE.9
rts
*--------------------------------------
CS.RUN.BATCH >LDA.G bSET.X
beq CS.RUN.LOOP.RUN
ldy #$ff
.3 iny
lda (ZPInputBufPtr),y
sta (ZPCLBuf),y
beq .4
eor #C.CR
bne .3
sta (ZPCLBuf),y
.4 >PUSHW L.MSG.TRACE
>PUSHW ZPCLBuf
>PUSHBI 2
>SYSCALL PrintF
bcs CS.RUN.LOOP.RTS
CS.RUN.LOOP.RUN jsr CORE.Run
CS.RUN.LOOP.END ldy #S.PS.RC
sta (pPS),y
bcc CS.RUN.LOOP.80
tay
beq CS.RUN.LOOP.80 0 = EOF
>LDA.G bSET.E
bmi CS.RUN.LOOP.80
.1 jsr CORE.StkGet
cmp #$C0+C.CLEXEC
beq .8
cmp #$C0+C.. in . ?
beq .7
cmp #$C0+C.CALL in CALL ?
beq .7
jsr CORE.StkPopCtx
bcc .1
.7 jsr IO.PrintBatchErrMsg
bcs CS.RUN.LOOP.RTS
jsr CORE.StkPull
jsr CMD.EXIT.FILE
.8 jsr IO.PrintErrMsg
bcs CS.RUN.LOOP.RTS
CS.RUN.LOOP.80 lda (pData) something on stack ?
bne CS.RUN.LOOP.88
>LDA.G bExitOnEOF
bmi CS.RUN.LOOP.EXIT
CS.RUN.LOOP.88 jmp CS.RUN.LOOP
CS.RUN.LOOP.EXIT
ldy #S.PS.RC
lda (pPS),y
sec
CS.RUN.LOOP.RTS rts
*--------------------------------------
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 jsr CORE.FUNCRESET
>LDA.G HIS.hBuf
beq .1
>SYSCALL FreeStkObj
.1 ldy #CL.hBuf
jsr .7
.2 jsr CMD.POPD
bcc .2
ldy #CORE.hArgVBuf
.7 lda (pData),y
beq .8
>SYSCALL FreeMem
.8 clc
rts
*--------------------------------------
GetCWD ldy #S.PS.hCWD
bra GetArgV.1
*--------------------------------------
GetArgV ldy #S.PS.hARGV
GetArgV.1 lda (pPS),y
>SYSCALL GetMemPtr
rts
*--------------------------------------
CheckLFAfterCR ldy #S.PS.hStdIn Check for any extra LF
lda (pPS),y
>SYSCALL FEOF
bcs .9
tay
bne .9
>SYSCALL GetChar
.9 rts
*--------------------------------------
CheckSleep ldy #Sleep+3
lda (pData),y
dey
ora (pData),y
dey
ora (pData),y
dey
ora (pData),y
rts
*--------------------------------------
GetPtr1NextChar lda (ZPPtr1)
beq IncPtr1.8
IncPtr1 inc ZPPtr1
bne IncPtr1.8
inc ZPPtr1+1
IncPtr1.8 rts
*--------------------------------------
GetPtr1LenY ldy #$ff
.1 iny
lda (ZPPtr1),y
bne .1
rts
*--------------------------------------
GetPtr1NextString
jsr GetPtr1LenY
*--------------------------------------
tya
AddAp1Ptr1 sec
adc ZPPtr1
sta ZPPtr1
bcc .8
inc ZPPtr1+1
.8 rts
*--------------------------------------
ToUpperCase cmp #'a'
bcc .8
cmp #'z'+1
bcs .8
eor #$20
.8 clc exit CC to allow Jmp to
rts
*--------------------------------------
IncPStack4 inc pStack
IncPStack3 inc pStack
inc pStack
inc pStack
rts
*--------------------------------------
.INB usr/src/bin/sh.s.cl
.INB usr/src/bin/sh.s.his
.INB usr/src/bin/sh.s.core
.INB usr/src/bin/sh.s.io
.INB usr/src/bin/sh.s.cmd
.INB usr/src/bin/sh.s.exp
*--------------------------------------
CS.END
*--------------------------------------
MSG.GREETINGS .AZ "\r\nA2osX-SH %d.%d\r\n\r\n"
MSG.HIS .AZ "\r\n%3d : %s"
MSG.HISPROMPT .AZ "\r\n\r\n? "
MSG.HISROMPTCLR .DA #C.BS,#C.BS,#0
MSG.PROMPT .AZ "\e[?7h$ " Enable Line Wrap
MSG.PROMPTCRLF .AZ "\e[?7l\r\n" Disable Line Wrap
MSG.TRACE .AS ">"
MSG.BATCHLINE .AZ "%s\r\n"
MSG.BATCHERR .AZ "%s^\r\nLine #%D:"
MSG.ERROR .AS "[$%h]:%s."
MSG.ECHOCRLF .AZ "\r\n"
MSG.PID .AZ "PID=%d\r\n"
FMT.DATE .AZ "%A, %B %d %Y %H:%M:%S"
FMT.Long .AZ "%L"
FMT.Byte .AZ "%d"
*--------------------------------------
HOME.PROFILE .AZ "${HOME}profile"
PtrZero .HS 00 To Make It ArgV
PS1 .AZ "${PS1}"
HOME .AZ "${HOME}"
*--------------------------------------
EscChars .AS 'DBAC'
EscChars.Cnt .EQ *-EscChars
EscChars.Remap .DA #C.BS,#C.VT,#C.LF,#C.FS
*--------------------------------------
CD.. .AZ ".."
*--------------------------------------
IN .AZ "IN"
*--------------------------------------
CMD .AT ".."
.AT "."
.AT "CD"
.AT "NOHUP"
.AT "DATE"
.AT "ECHO"
.AT "EXIT"
.AT "MD"
.AT "PAUSE"
.AT "PWD"
.AT "RD"
.AT "READ"
.AT "REN"
.AT "SET"
.AT "SLEEP"
.AT "SHIFT"
.AT "PUSHD"
.AT "POPD"
.AT "FUNCTION"
.AT "CALL"
.AT "BREAK"
.AT "SWITCH"
.AT "CASE"
.AT "DEFAULT"
.AT "FOR"
.AT "WHILE"
.AT "IF"
.AT "NEXT"
.AT "LOOP"
.AT "ELSE"
.AT "FI"
.AT "END"
.HS 00
CORE.IO .AT "&"
.AT "<"
.AT ">>"
.AT ">"
.AT "1>>"
.AT "1>"
.AT "2>>"
.AT "2>"
.HS 00
EXP.BEGIN .AT "!["
.AT "["
.HS 00
EXP.OP.UNARY .AT "-D"
.AT "-E"
.AT "-F"
.AT "-I"
.AT "-N"
.AT "-X"
.AT "-Z"
.HS 00
EXP.OP.BINARY .AT "-LT"
.AT "-LE"
.AT "-GT"
.AT "-GE"
.AT "-EQ"
.AT "-NE"
.AT ".<"
.AT "<="
.AT ".>"
.AT ">="
.AT "="
.AT "!="
.HS 00
EXP.OP.MATH .AT "*"
.AT "/"
.AT "MOD"
.AT "+"
.AT "-"
.HS 00
EXP.OP.LOGIC .AT "AND"
.AT "OR"
.HS 00
*--------------------------------------
EXP.OP.BINARY.BITS
.DA #%100
.DA #%110
.DA #%001
.DA #%011
.DA #%010
.DA #%101
*--------------------------------------
EXP.OP.MATH.FPU .DA #FPU.lMUL,#FPU.lDIV,#FPU.lMOD,#FPU.lADD,#FPU.lSUB
*--------------------------------------
SET.FLAGS .AS "CXE"
SET.VARS .DA #bSET.C,#bSET.X,#bSET.E
*--------------------------------------
.DUMMY
.OR 0
DS.START
CORE.STACK .BS CORE.STACK.MAX+1 pData (0 = Stack Ptr)
PUSHD.STACK .BS PUSHD.STACK.MAX+1
hFuncList .BS 1
bExitOnEOF .BS 1
bPause .BS 1
bSET.C .BS 1
bSET.E .BS 1
bSET.X .BS 1
Sleep .BS 4
CL.hBuf .BS 1
CL.Ptr .BS 1
CL.Len .BS 1
CL.bReady .BS 1
CL.bEscMode .BS 1
CL.MaxCnt .BS 1
CL.bSilent .BS 1
CORE.hArgVBuf .BS 1
CORE.bPipeIn .BS 1
CORE.bPipeOut .BS 1
HIS.hBuf .BS 1
HIS.Count .BS 1
HIS.Index .BS 1
HIS.LRU .BS 1
IO.hIn .BS 1
IO.hOut .BS 1
IO.hErr .BS 1
*TimeBuf .BS S.TIME 8 bytes
*M32.BUF .BS 12 -1234567890\0
TimeBuf .EQ *
M32.BUF .EQ *
IO.DEVFIFO .BS 12 /dev/fifoXX\0
*--------------------------------------
DS.END .ED
*--------------------------------------
MAN
SAVE usr/src/bin/sh.s
ASM