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A2osX/SBIN/SHELL.S.txt
Rémy GIBERT 3dadb01f26 Kernel 0.9.1 : Colors !!!! ;-)
2017-10-05 21:03:12 +02:00

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PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
INC 1
AUTO 6
.LIST OFF
.OP 65C02
.OR $2000
.TF /A2OSX.BUILD/SBIN/SHELL
*--------------------------------------
.INB /A2OSX.BUILD/INC/MACROS.I
.INB /A2OSX.BUILD/INC/A2OSX.I
.INB /A2OSX.BUILD/INC/MLI.ERR.I
*--------------------------------------
ZPPTR1 .EQ ZPBIN
ZPPTR2 .EQ ZPBIN+2
ZPCMDBuf .EQ ZPBIN+4
ZPCSHBufBase .EQ ZPBIN+6
ZPCSHBufPtr .EQ ZPBIN+8
ZPCSHSymbols .EQ ZPBIN+10
ZPCSHData .EQ ZPBIN+12
ZPCSHStack .EQ ZPBIN+14
*--------------------------------------
CmdLine.MAX .EQ 255
VarLen.MAX .EQ 15
History.MAX .EQ 256
CSH.Stack.MAX .EQ 15
CSH.Name.MAX .EQ 15
CSH.E.SYNTAX .EQ $7F
CSH.E.SOVERFLW .EQ $7E
CSH.E.NOVERFLW .EQ $7D
CSH.E.OOM .EQ $7C
CSH.E.DUP .EQ $7B
CSH.E.UNDEF .EQ $7A
CSH.E.TOOLONG .EQ $79
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA 0
.DA CS.END-CS.START CS
.DA DS.END-DS.START DS
.DA #64 SS
.DA #16 ZP
.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.ECHO .DA MSG.ECHO
L.MSG.ERROR .DA MSG.ERROR
L.MSG.PRINTENV .DA MSG.PRINTENV
L.MSG.CSHERR .DA MSG.CSHERR
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 CmdLine.BS left arrow
.DA HIS.GetNext
.DA HIS.GetPrev
.DA CmdLine.NAK right arow
L.INTCMDS .DA INTCMDS
J.INTCMDS .DA Cmd.Exec.CD
.DA Cmd.Exec.DATE
.DA Cmd.Exec.ECHO
.DA Cmd.Exec.EXIT
.DA Cmd.Exec.PAUSE
.DA Cmd.Exec.PWD
.DA Cmd.Exec.READ
.DA Cmd.Exec.SET
.DA Cmd.Exec.SLEEP
.DA Cmd.Exec.STARTPROC
.DA Cmd.Exec.TIME
L.CSHCMDS .DA CSHCMDS
J.CSHCMDS .DA CSH.IF
.DA CSH.WHILE
.DA CSH.BREAK
.DA CSH.CONTINUE
.DA CSH.CHAR
.DA CSH.INT
.DA CSH.LONG
.DA CSH.FLOAT
J.CSHCMDS.END .DA CSH.IF.END
.DA CSH.WHILE.END
L.CSH.ACC .DA CSH.ACC
L.ERR.Codes .DA ERR.Codes
L.ERR.Messages .DA ERR.Messages
.DA 0
*--------------------------------------
CS.INIT jsr SetPWD
jsr CMD.Init
bcs .9
lda (pPs)
ora #S.PS.F.EVENT Now accept events
sta (pPs)
ldy #S.PS.ARGC
lda (pPs),y
beq .1 no arg, continue starting interactive
jmp CSH.Init
.1 jsr HIS.Init
bcs .9
>LDYA L.MSG.GREETINGS
>SYSCALL PrintF.YA
.9 rts
*--------------------------------------
CS.RUN >LDA.G bReadMode READ Command ?
bne CS.RUN.READ
ldy #S.PS.RC
lda (pPs),y
beq .11
jsr IO.PrintErrMsg
bcs CS.RUN.EXIT.RTS
.11 >LDA.G bPause
bpl .13
>SYSCALL GetChar
bcs .8
.13 jsr CheckSleep
bne .8
>LDA.G CSH.hBuf batch mode ?
beq .10
jmp CS.RUN.BATCH
*--------------------------------------
.10 jsr CmdLine.RESET reset CmdBuf
.12 jsr PrintPrompt
bcs CS.RUN.EXIT.RTS
.1 >SYSCALL Sleep
>SYSCALL GetChar
bcs .1 no char
jsr CS.CHARIN
>LDA.G bCmdBufExec Something to execute ?
bpl .1
>LDA.G CmdBuflen
beq .10 Empty line
jsr CMD.Parse
>LDA.G CmdBuflen
beq .10 Empty line
jsr HIS.Add
jsr CMD.Exec
bcs .2
lda #0
.2 ldy #S.PS.RC
sta (pPs),y
>LDA.G bExit
bne CS.RUN.EXIT
.8 clc
rts
CS.RUN.EXIT lda #0
CS.RUN.EXIT.ERR sec
CS.RUN.EXIT.RTS rts
*--------------------------------------
CS.RUN.READ lda #0 reset Buffer
sta (ZPCMDBuf)
.1 >SYSCALL Sleep
>SYSCALL GetChar
bcs .1 no char
jsr CS.CHARIN
>LDA.G bCmdBufExec
bpl .1
>PUSHW ZPCMDBuf
>PUSHEA.G CMD.VarName
>SYSCALL SetEnv
rts
*--------------------------------------
CS.RUN.BATCH jsr CSH.Run
bcc .7
cmp #MLI.ERR.EOF
beq .9
pha
ldy #CSH.BufPtr+1
>PUSHB (pData),y
dey
>PUSHB (pData),y
>LDYA L.MSG.CSHERR
>SYSCALL PrintF.YA
jsr CSH.RestorePtr
jsr CSH.GetChar
bcs .2
>SYSCALL PutChar.A
.1 jsr CSH.GetNextChar
bcs .2
cmp #13
beq .2
>SYSCALL PutChar.A
bra .1
.2 pla
ldy #S.PS.RC
sta (pPs),y
pha
ldy #bExitOnEOF
lda (pData),y
asl CS if bExitOnEOF
pla
rts
.7 >LDA.G bCmdBufExec
bpl .8 Empty line....nothing to do....
jsr Cmd.Parse
lda (ZPCMDBuf)
beq .8
jsr Cmd.Exec
bcs .8
lda #0
.8 ldy #S.PS.RC
sta (pPs),y
clc
rts
.9 lda #0
sec
rts
*--------------------------------------
CS.DOEVENT lda (pEvent)
bpl .9
jsr CheckSleep
beq .9
* ldy #Sleep already set by CheckSleep
clc
ldx #4
.1 lda (pData),y
sbc #0
sta (pData),y
iny
dex
bne .1
.9 sec
rts
*--------------------------------------
CS.CHARIN tax Save Char
>LDA.G CSH.hBuf Batch mode ?
beq .10
* Batch Mode
cpx #3 test Ctrl-c
bne .12
>LDA.G bExitOnEOF
>STA.G bExit
clc
rts
.12 cpx #19 test Ctrl-s
bne .8
lda #$80
>STA.G bPause
clc
rts
*--------------------------------------
* interactive mode
.10 >LDA.G bEscMode
beq .13
cpx #'['
beq .8
lda #0
sta (pData),y Y=bEscMode
txa
ldx #EscChars.count-1
.17 cmp EscChars,x
beq .18
dex
bpl .17
clc
rts
.18 txa
asl
tax
jmp (J.ESC,x)
*--------------------------------------
.13 cpx #$20
bcc CS.CHARIN.CTRL
.1 cpx #$7f
bne .2
jmp CmdLine.DEL
.2 >LDA.G CmdBuflen
cmp #CmdLine.MAX
beq .8 Buffer full, discard...
inc
sta (pData),y
clc Len-1-Ptr !!!!!
>SBC.G CmdBufPtr
beq .30
phx
tax
>LDA.G CmdBuflen
tay
.3 lda (ZPCMDBuf),y Move from Ptr To end of buffer forward...
iny
sta (ZPCMDBuf),y
dey
dey
dex
bne .3
plx
.30 >LDA.G CmdBufPtr Insert char at Ptr
tay
txa
sta (ZPCMDBuf),y
>SYSCALL PutChar.A
>INC.G CmdBufPtr
>CMP.G CmdBuflen
bne .8
tay
lda #0
sta (ZPCMDBuf),y
clc
rts
.8 jmp CmdLine.PRINTPTR
*--------------------------------------
CS.CHARIN.CTRL
cpx #13 CR
bne .10
txa
>SYSCALL PutChar.A
lda #10
>SYSCALL PutChar.A
>LDA.G CmdBufPtr
tay
lda #0
sta (ZPCMDBuf),y
tya
>STA.G CmdBuflen
lda #$ff
>STA.G bCmdBufexec
clc
rts
.10 cpx #$1B esc
bne .11
lda #$ff
>STA.G bEscMode
clc
rts
.11 cpx #3 Ctrl-C
bne .8
jsr CmdLine.CLR
clc
rts
.8 clc
rts
*--------------------------------------
CS.QUIT jsr HIS.Quit
jsr CSH.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
>SYSCALL GetMemPtr.A
>PUSHYA
>PUSHW L.ENV.PWD
>SYSCALL SetEnv
rts
*--------------------------------------
PrintPrompt >LDYA L.ENV.PS1
>SYSCALL GetEnv.YA
>SYSCALL ExpandStr.YA
phx
>SYSCALL PrintF.YA
>LDYA L.MSG.PROMPT
>SYSCALL PrintF.YA
plx
php
pha
txa
>SYSCALL FreeMem.A
pla
plp
rts
*--------------------------------------
.INB /A2OSX.SRC/SBIN/SHELL.S.CL
.INB /A2OSX.SRC/SBIN/SHELL.S.CMD
.INB /A2OSX.SRC/SBIN/SHELL.S.CSH
.INB /A2OSX.SRC/SBIN/SHELL.S.IO
.INB /A2OSX.SRC/SBIN/SHELL.S.HIS
*--------------------------------------
CS.END
*--------------------------------------
ENV.PATH >CSTR "PATH"
ENV.PWD >CSTR "PWD"
ENV.PS1 >CSTR "PS1"
ENV.HOME >CSTR "HOME"
*--------------------------------------
INTCMDS >CSTR "CD"
>CSTR "DATE"
>CSTR "ECHO"
>CSTR "EXIT"
>CSTR "PAUSE"
>CSTR "PWD"
>CSTR "READ"
>CSTR "SET"
>CSTR "SLEEP"
>CSTR "STARTPROC"
>CSTR "TIME"
.HS 00
CSHCMDS >PSTR "IF"
>PSTR "WHILE"
>PSTR "BREAK"
>PSTR "CONTINUE"
>PSTR "CHAR"
>PSTR "INT"
>PSTR "LONG"
>PSTR "FLOAT"
.HS 00
*--------------------------------------
MSG.GREETINGS >CSTR "\r\nA2osX-Shell 0.9.1\r\n\r\n"
MSG.PROMPT >CSTR "$ "
MSG.ECHO >CSTR ">%s\r\n"
MSG.ERROR >CSTR "[$%h]:%S.\r\n"
MSG.PRINTENV >CSTR "%s=%s\r\n"
MSG.CSHERR >CSTR "Pos %D:"
FMT.DATE >CSTR "%A, %B %d %Y"
FMT.TIME >CSTR "%H:%M:%S (%I:%M:%S%p)"
*--------------------------------------
.INB /A2OSX.SRC/X.ERRORS.S
*--------------------------------------
EscChars.Count .EQ 4
EscChars .AS 'DBAC'
CSH.TSIZE .HS 0001020405 00,CHAR,INT,LONG,FLOAT....
CSH.ACCT .BS 1
CSH.ACC .BS 5
CSH.ARGT .BS 1
CSH.ARG .BS 5
*--------------------------------------
.DUMMY
.OR 0
DS.START
hCmdBuf .BS 1
CmdBufPtr .BS 1
CmdBuflen .BS 1
bCmdBufexec .BS 1
bEscMode .BS 1
bPause .BS 1
bExit .BS 1
bEcho .BS 1
bExitOnEOF .BS 1
bReadMode .BS 1
bSecureRead .BS 1
Sleep .BS 4
CMD.hCmdLine .BS 1
CMD.hFullpath .BS 1
CMD.bStartProc .BS 1
CMD.VarName .BS VarLen.MAX+1
CMD.Stat .BS S.STAT
CMD.Time .BS S.TIME
HIS.hBuf .BS 1
HIS.Count .BS 1
HIS.Index .BS 1
IO.hIn .BS 1
IO.hOut .BS 1
IO.hErr .BS 1
CSH.hBuf .BS 1
CSH.BufPtr .BS 2
CSH.BufLen .BS 2
CSH.BufPtrSave .BS 2
CSH.hSymbols .BS 1
CSH.SymbolsPtr .BS 1
CSH.hData .BS 1
CSH.DataPtr .BS 1
CSH.hStack .BS 1
CSH.StackPtr .BS 1
CSH.CmdSave .BS 1
CSH.Name .BS CSH.Name.MAX+1
DS.END .ED
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SBIN/SHELL.S
ASM
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