A2osX/SBIN/SHELL.S.txt

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PR#3
PREFIX /A2OSX.BUILD
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NEW
INC 1
AUTO 6
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.LIST OFF
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.OP 65C02
.OR $2000
.TF /A2OSX.BUILD/SBIN/SHELL
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*--------------------------------------
.INB /A2OSX.BUILD/INC/MACROS.I
.INB /A2OSX.BUILD/INC/A2OSX.I
.INB /A2OSX.BUILD/INC/MLI.ERR.I
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*--------------------------------------
ZPPTR1 .EQ ZPBIN
ZPPTR2 .EQ ZPBIN+2
ZPPTR3 .EQ ZPBIN+4
*--------------------------------------
CmdLine.MAX .EQ 127
VarLen.MAX .EQ 15
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
CS.START cld
jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA 0
.DA CS.END-CS.START Code Length To Relocate
.DA DS.END-DS.START Data Segment to Allocate
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
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*--------------------------------------
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.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
*--------------------------------------
L.MSG.GREETINGS .DA MSG.GREETINGS
L.MSG.PROMPT .DA MSG.PROMPT
L.MSG.ECHO .DA MSG.ECHO
L.MSG.ERROR .DA MSG.ERROR
L.MSG.PRINTENV .DA MSG.PRINTENV
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L.ENV.PATH .DA ENV.PATH
L.ENV.PWD .DA ENV.PWD
L.ENV.PS1 .DA ENV.PS1
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L.CMD .DA CMD
L.ARGS .DA ARGS
L.TIME .DA TIME
L.STAT .DA STAT
L.FMT.DATE .DA FMT.DATE
L.FMT.TIME .DA FMT.TIME
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L.CMDS .DA CMDS
J.INTCMDS .DA Cmd.Exec.CD
.DA Cmd.Exec.DATE
.DA Cmd.Exec.ECHO
.DA Cmd.Exec.EXIT
.DA Cmd.Exec.PAUSE
.DA Cmd.Exec.PWD
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.DA Cmd.Exec.READ
.DA Cmd.Exec.SET
.DA Cmd.Exec.STARTPROC
.DA Cmd.Exec.TIME
L.ERR.Codes .DA ERR.Codes
L.ERR.Messages .DA ERR.Messages
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.DA 0
*--------------------------------------
CS.INIT jsr SetPWD
>SYSCALL GetArgC
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cmp #1
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beq CS.INIT.INTERACTIVE no arg, continue starting interactive
lda #1
>SYSCALL GetArgA
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jsr TXT.OpenFileYA
bcs .9
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ldy #bExitOnEOF
lda #$FF
sta (pData),y
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clc
.9 rts
*--------------------------------------
CS.INIT.INTERACTIVE
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jsr HIS.Init
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bcs .9
>LDYA L.MSG.GREETINGS
>SYSCALL PPrintFYA
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lda (pPs)
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ora #S.PS.F.EVENT Now accept events
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sta (pPs)
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clc
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.9 rts
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*--------------------------------------
CS.RUN ldy #bPause
lda (pData),y
bmi .8
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ldy #VarBuffer READ Command ?
lda (pData),y
bne CS.RUN.READ
ldy #S.PS.RC
lda (pPs),y
beq .11
jsr ERR.Print
bcs CS.RUN.EXIT.RTS
.11 ldy #hInputFile batch mode ?
lda (pData),y
beq .10
jmp CS.RUN.BATCH
.10 lda #0
sta (pData)
ldy #bSecureRead
sta (pData),y
.12 jsr PrintPrompt
bcs CS.RUN.EXIT.RTS
.1 >SYSCALL Sleep
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>SYSCALL GetC
bcs .1 no char
jsr CS.CHARIN
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lda (pData)
bpl .1
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and #$7F
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sta (pData)
jsr CmdBuffer.Normalize
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lda (pData)
beq .12 Empty line
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jsr HIS.Add
>LDYA pData
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jsr Cmd.ExecYA
ldy #S.PS.RC
sta (pPs),y
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.8 ldy #bEXIT
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lda (pData),y
bne CS.RUN.EXIT
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clc
rts
CS.RUN.EXIT lda #0
CS.RUN.EXIT.ERR sec
CS.RUN.EXIT.RTS rts
*--------------------------------------
CS.RUN.READ lda #0
sta (pData)
.1 >SYSCALL Sleep
>SYSCALL GetC
bcs .1 no char
jsr CS.CHARIN
lda (pData)
bpl .1
and #$7F
sta (pData)
>PUSHW pData
lda #VarBuffer
clc
adc pData
tay
lda pData+1
adc #0
>PUSHYA
>SYSCALL SetEnv
php
pha
ldy #VarBuffer
lda #0
sta (pData),y
pla
plp
rts
*--------------------------------------
CS.RUN.BATCH jsr TXT.ReadFile
bcs .9
jsr CmdBuffer.Normalize
lda (pData)
beq CS.RUN.BATCH Empty line
* jsr HIS.Add
>LDYA pData
jsr Cmd.ExecYA
ldy #S.PS.RC
sta (pPs),y
clc
rts
.9 jsr TXT.CloseFile
ldy #bExitOnEOF
lda (pData),y
bne CS.RUN.EXIT
clc
rts
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*--------------------------------------
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CS.DOEVENT sec
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rts
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*--------------------------------------
CS.CHARIN tax
ldy #hInputFile Batch mode ?
lda (pData),y
beq .10
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* Batch Mode
cpx #3 test Ctrl-c
bne .12
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jsr TXT.CloseFile
ldy #bExitOnEOF
lda (pData),y
ldy #bExit
sta (pData),y
clc
rts
.12 cpx #19 test Ctrl-s
bne .8
ldy #bPause
lda #$80
sta (pData),y
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clc
rts
* interactive mode
.10 ldy #bEscMode
lda (pData),y
beq .13
cpx #'['
beq .8
lda #0
sta (pData),y
txa
ldx EscChars
.17 cmp EscChars,x
beq .18
dex
bne .17
bra .8
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.18 lda EscAscii,x
tax
.13 cpx #$20
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bcs .1
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jsr CS.CHARIN.CTRL
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bra .8
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.1 cpx #$7f
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bne .2
jsr CmdBuffer.DEL
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clc
rts
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.2 lda (pData) CmdBuffer
cmp #CmdLine.MAX
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beq .8
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inc
sta (pData)
tay
txa
sta (pData),y
tax
ldy #bSecureRead
lda (pData),y
bne .8
txa
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>SYSCALL PutCA
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.8 clc
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rts
*--------------------------------------
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CS.CHARIN.CTRL cpx #13 CR
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bne .10
txa
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>SYSCALL PutCA
lda #10
>SYSCALL PutCA
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lda (pData) CmdBuffer
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ora #$80
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sta (pData)
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clc
rts
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.10 cpx #$1B esc
bne .11
ldy #bEscMode
lda #$ff
sta (pData),y
clc
rts
.11 cpx #3 Ctrl-C
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bne .1
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jsr CmdBuffer.CLR
clc
rts
.1 cpx #8 BS (left arrow)
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bne .2
jsr CmdBuffer.DEL
clc
rts
.2 cpx #10 LF (down arrow)
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bne .3
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jsr HIS.GetNext
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clc
rts
.3 cpx #11 VT (up arrow)
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bne .4
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jsr HIS.GetPrev
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clc
rts
.4 cpx #21 NAK (right arrow)
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bne .8
clc
rts
.8 clc
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rts
*--------------------------------------
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CS.QUIT jsr HIS.Quit
ldy #hInputFile
lda (pData),y
beq .1
>SYSCALL FCloseA
.1
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.8 clc
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rts
*--------------------------------------
* PRIVATE
*--------------------------------------
SetPWD ldy #S.PS.hPREFIX
lda (pPs),y
>SYSCALL GetMemPtrA
>PUSHYA
>PUSHW L.ENV.PWD
>SYSCALL SetEnv
rts
*--------------------------------------
PrintPrompt >LDYA L.ENV.PS1
>SYSCALL GetEnvYA
>SYSCALL ExpandPStrYA
phx
>PUSHYA
pla
>SYSCALL FreeMemA
>LDYA L.MSG.PROMPT
>SYSCALL PPrintFYA
.9 rts
*--------------------------------------
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* Remove extra SPACE & comment
*--------------------------------------
CmdBuffer.Normalize
>LDYA pData
>STYA ZPPtr1
lda (pData) empty line...quit
beq .9
tax Char count
ldy #0
.1 jsr CmdBuffer.Normalize.Next
beq .8 no more char, exit
cmp #' ' skip leading spaces
beq .1
cmp #'#' Comment ?
beq .8 ignore remaining chars
.3 iny add char to buffer
sta (pData),y
jsr CmdBuffer.Normalize.Next
beq .8
cmp #' '
bne .3
iny add One SPACE to buffer
sta (pData),y
.5 jsr CmdBuffer.Normalize.Next
beq .8
cmp #' '
beq .5 skip additional spaces
bne .3 no more space, add next word...
.8 tya
sta (pData)
.9 rts
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CmdBuffer.Normalize.Next
txa
beq .8
dex
inc ZPPtr1
bne .1
inc ZPPtr1+1
.1 lda (ZPPtr1)
.8 rts
*--------------------------------------
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CmdBuffer.CLR jsr CmdBuffer.DEL
bne CmdBuffer.CLR
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rts
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*--------------------------------------
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CmdBuffer.DEL lda (pData)
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beq .9
lda #8
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>SYSCALL PutCA
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lda (pData)
dec
sta (pData)
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.9 rts
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*--------------------------------------
.INB /A2OSX.SRC/SBIN/SHELL.S.CMD
.INB /A2OSX.SRC/SBIN/SHELL.S.ERR
.INB /A2OSX.SRC/SBIN/SHELL.S.HIS
.INB /A2OSX.SRC/SBIN/SHELL.S.TXT
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*--------------------------------------
CS.END
*--------------------------------------
ENV.PATH >PSTR "PATH"
ENV.PWD >PSTR "PWD"
ENV.PS1 >PSTR "PS1"
CMDS >PSTR "CD"
>PSTR "DATE"
>PSTR "ECHO"
>PSTR "EXIT"
>PSTR "PAUSE"
>PSTR "PWD"
>PSTR "READ"
>PSTR "SET"
>PSTR "STARTPROC"
>PSTR "TIME"
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.HS 00
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*--------------------------------------
MSG.GREETINGS >PSTR "\r\nA2osX-Shell\r\n\r\n"
MSG.PROMPT >PSTR "%S$ "
MSG.ECHO >PSTR ">%S\r\n"
MSG.ERROR >PSTR "Err:%S [%h]\r\n"
MSG.PRINTENV >PSTR "%S=%S\r\n"
FMT.DATE >PSTR "%A, %B %d %Y"
FMT.TIME >PSTR "%H:%M:%S (%I:%M:%S%p)"
*--------------------------------------
.INB /A2OSX.SRC/X.ERRORS.S
*--------------------------------------
EscChars >PSTR "DBAC"
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EscAscii .HS 04080A0B15
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CMD .BS 256
ARGS .BS 256
TIME .BS S.TIME
STAT .BS S.STAT
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hNEWPATH .BS 1
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hCmdLine .BS 1
Cmd.Exec.Mode .BS 1
hFullPath .BS 1
hTextFile .BS 1
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*--------------------------------------
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.DUMMY
.OR 0
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DS.START
CmdBuffer .BS CmdLine.MAX+1 (pData)
VarBuffer .BS VarLen.MAX+1
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bEscMode .BS 1
bPause .BS 1
bExit .BS 1
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bEcho .BS 1
bSecureRead .BS 1
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bExitOnEOF .BS 1
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hCmdHistory .BS 1
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CmdHistory.IDX .BS 1
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CmdHistory.END .BS 1
hInputFile .BS 1
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DS.END
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.ED
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*--------------------------------------
MAN
SAVE /A2OSX.SRC/SBIN/SHELL.S
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ASM