mirror of
https://github.com/A2osX/A2osX.git
synced 2024-06-27 00:29:29 +00:00
634 lines
11 KiB
Plaintext
634 lines
11 KiB
Plaintext
PR#3
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PREFIX /A2OSX.BUILD
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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*--------------------------------------
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CMD.Init >LDYAI CmdLine.MAX+1
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>SYSCALL GetMem.YA
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bcs .9
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txa
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>STA.G hCmdBuf
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.9 rts
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*--------------------------------------
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* ZPCMDBuf : Remove extra SPACE & comment
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*--------------------------------------
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Cmd.Parse >LDYA ZPCMDBuf
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>STYA ZPPtr1
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lda (ZPCMDBuf) empty line...quit
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beq .9
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ldy #0
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.1 jsr Cmd.Parse.NextC
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beq .8 no more char, exit
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cmp #' ' skip leading spaces
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beq .1
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cmp #'#' Comment ?
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beq .8 ignore remaining chars
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.3 sta (ZPCMDBuf),y add char to buffer
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iny
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jsr Cmd.Parse.NextC
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beq .8
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cmp #' '
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bne .3
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sta (ZPCMDBuf),y add One SPACE to buffer
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iny
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.5 jsr Cmd.Parse.NextC
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beq .8
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cmp #' '
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beq .5 skip additional spaces
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bne .3 no more space, add next word...
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.8 lda #0
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sta (ZPCMDBuf),y
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.9 rts
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Cmd.Parse.NextC lda (ZPPtr1)
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beq .8
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inc ZPPtr1
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bne .8
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inc ZPPtr1+1 never Z
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.8 rts
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*--------------------------------------
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* ZPCMDBuf-> Command line (formatted & not empty)
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*--------------------------------------
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Cmd.Exec stz bStartProc
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>LDYA ZPCMDBuf
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>SYSCALL ExpandStr.YA
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>STYA ZPPtr1 Ptr to CMD ARGS
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txa
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>STA.G CMD.hCmdLine
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Cmd.Exec.2 ldy #$ff CMD Len
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.1 iny
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lda (ZPPtr1),y Get CMD char...
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beq .2
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cmp #' ' we reached blank between CMD ARGS
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bne .1
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lda #0
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sta (ZPPtr1),y Cut CMD with the ending 0
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.2 phy Y=CMD len
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>LDYA L.INTCMDS
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>STYA ZPPtr2
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ldx #0
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.3 lda (ZPPtr2)
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beq Cmd.Exec.EXT Array Ending 0, must be an external Cmd....
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pla get back CMD len
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pha
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cmp (ZPPtr2) Same Len ?
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beq .51
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.4 inx
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inx
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lda ZPPtr2
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sec
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adc (ZPPtr2)
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sta ZPPtr2
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bcc .3
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inc ZPPtr2+1
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bra .3
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.51 tay
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.5 dey
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lda (ZPPtr1),y
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cmp #'a' To Uppercase
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bcc .6
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cmp #'z'+1
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bcs .6
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eor #$20
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.6 iny
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cmp (ZPPtr2),y
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bne .4
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dey
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bne .5
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ply get back Cmd Len
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lda (ZPPtr1),y
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beq .7 ARGS = ""
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iny skip " "
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.7 tya
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clc
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adc ZPPtr1
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sta ZPPtr2
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lda #0
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adc ZPPtr1+1
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sta ZPPtr2+1 ZPPtr2->ARGS
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jsr Cmd.Exec.INT Found an internal Cmd...
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Cmd.Exec.Done php
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pha
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>LDA.G CMD.hCmdLine
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>SYSCALL FreeMem.A
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pla
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plp
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rts
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*--------------------------------------
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Cmd.Exec.INT jmp (J.INTCMDS,x)
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*--------------------------------------
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Cmd.Exec.EXT pla Discard CMD len
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lda (ZPPtr1)
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cmp #'/' Command line is already full path, no search
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bne .1
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>PUSHW L.STAT
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>PUSHW ZPPtr1
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>SYSCALL STAT
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bcs .99
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>LDYAI UsrBuf256
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>STYA ZPPtr1
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bra .3
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.1 >LDYA L.ENV.PATH push ENVNAME=PATH for search
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>SYSCALL GetEnv.YA get value for ENV=PATH
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bcs .2 No PATH, try in CD
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jsr Cmd.Exec.Search
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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.A
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jsr Cmd.Exec.Search
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bcs .99
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.3 lda STAT+S.STAT.P.TYPE
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cmp #$04 TXT File ?
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beq Cmd.Exec.EXT.TXT
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cmp #$06 BIN File ?
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beq Cmd.Exec.EXT.BIN
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cmp #$ff SYS File ?
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bne .9
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bra *
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.9 lda #SYSMGR.ERRSYN
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sec
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.99 jmp Cmd.Exec.Done
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*--------------------------------------
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Cmd.Exec.Search >PUSHYA push search list
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>PUSHW ZPPtr1
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>PUSHWI UsrBuf256
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>PUSHW L.STAT
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>SYSCALL FileSearch
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rts
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*--------------------------------------
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* TXT : Launch "/PATH/SHELL /PATH/CMD ARGS"
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*--------------------------------------
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Cmd.Exec.EXT.TXT
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lda #0 Get arg[0] = /PATH/SHELL
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>SYSCALL GetArg.A
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>PUSHYA
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>PUSHWI UsrBuf256
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>SYSCALL StrCpy
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inc UsrBuf256 Add a space....
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ldy UsrBuf256
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lda #' '
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sta UsrBuf256,y
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*--------------------------------------
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* BIN : Launch "/PATH/CMD ARGS"
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*--------------------------------------
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Cmd.Exec.EXT.BIN
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>PUSHW L.CMD
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>PUSHWI UsrBuf256
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>SYSCALL StrCat
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lda (ZPPTR2)
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beq .1
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inc UsrBuf256 Add a space....
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ldy UsrBuf256
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lda #' '
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sta UsrBuf256,y
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>PUSHW ZPPTR2
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>PUSHWI UsrBuf256
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>SYSCALL StrCat
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.1 >LDYAI UsrBuf256
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bit bStartProc
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bmi .2 startproc
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>SYSCALL ExecProcessNewEnvYA
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jmp Cmd.Exec.Done
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.2 >SYSCALL CreateProcessYA
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jmp Cmd.Exec.Done
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*--------------------------------------
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* Internal Commands
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*--------------------------------------
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Cmd.Exec.CD lda (ZPPTR2)
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bne Cmd.Exec.CD1
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Cmd.Exec.PWD ldy #S.PS.hPREFIX
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lda (pPs),y
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>SYSCALL GetMemPtr.A
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>SYSCALL PrintF.YA
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rts
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Cmd.Exec.CD1 stz UsrBuf256
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cmp #'/' Full Path?
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beq .1
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ldy #S.PS.hPREFIX no, init target prefix with actual prefix
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lda (pPs),y
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>SYSCALL GetMemPtr.A
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>PUSHYA
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>PUSHWI UsrBuf256
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>SYSCALL StrCpy
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.1 >PUSHW ZPPTR2 Append ARG to buffer
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>PUSHWI UsrBuf256
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>SYSCALL StrCat
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lda #'/'
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ldx UsrBuf256
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cmp UsrBuf256,x Ending '/' ?
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beq .2
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sta UsrBuf256+1,x no, add one...
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inc UsrBuf256
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.2 ldx #0 path is something like : /dir1/../dir2/
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.3 ldy #0 reset char counter
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.4 cpx UsrBuf256
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beq .8
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inx
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lda UsrBuf256,x
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cmp #'/'
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beq .5
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iny char=char+1!!!
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bra .4
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.5 tya any char count?
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beq .4 no, start counting...
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cpy #2 do we have /xx/?
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bne .3 no, skip this token
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lda #'.'
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cmp UsrBuf256-1,x /yy/x./ ?
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bne .3
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cmp UsrBuf256-2,x /yy/../ ?
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bne .3
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cpx #4 /../ ?
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beq Cmd.Exec.ERRSYN illegal
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txa
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tay save end of /../
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sec
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sbc #3 remove ../
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tax
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.6 dex
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lda UsrBuf256,x Found beginning of dir before /../
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cmp #'/'
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bne .6
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.7 lda UsrBuf256,y strip dir/../
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sta UsrBuf256,x
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cpy UsrBuf256
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beq .71
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iny
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inx
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bra .7
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.71 stx UsrBuf256
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bra .2 Start over...
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.8 cpx #1
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beq .80 we have '/' go change prefix
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>PUSHW L.STAT
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>PUSHWI UsrBuf256
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>SYSCALL STAT
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bcs .9
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lda STAT+S.STAT.P.TYPE
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cmp #$0F Directory ?
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bne Cmd.Exec.ERRSYN
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.80 >LDYAI UsrBuf256
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>SYSCALL NewStr.YA
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bcs .9
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phx
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ldy #S.PS.hPREFIX
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lda (pPs),y
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>SYSCALL FreeMem.A
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pla
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ldy #S.PS.hPREFIX
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sta (pPs),y
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jsr SetPWD
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clc
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.9 rts
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*--------------------------------------
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Cmd.Exec.ERRSYN lda #SYSMGR.ERRSYN
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sec
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rts
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*--------------------------------------
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Cmd.Exec.STARTPROC
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lda (ZPPTR2)
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beq Cmd.Exec.ERRSYN
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sec
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ror bStartProc
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>LDYA ZPPTR2
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>STYA ZPPTR1
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jmp Cmd.Exec.2
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*--------------------------------------
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Cmd.Exec.SET lda (ZPPTR2)
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bne Cmd.Exec.SETVAR
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* No arg, print all ENV
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ldy #S.PS.hENV
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lda (pPs),y
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>SYSCALL GetMemPtr.A
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>STYA ZPPTR1
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.1 lda (ZPPTR1)
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beq .8 Ending 0 ?
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ldy #$ff
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.2 iny
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lda (ZPPTR1),y
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bne .2
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tya
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sec
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adc ZPPTR1
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sta ZPPTR2
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lda #0
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adc ZPPTR1+1
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sta ZPPTR2+1
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>PUSHW ZPPTR2 Push value
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>PUSHW ZPPTR1 Push name
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>LDYA L.MSG.PRINTENV
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>SYSCALL PrintF.YA
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bcs .9
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ldy #$ff
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.3 iny
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lda (ZPPTR2),y
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bne .3
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tya
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sec
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adc ZPPTR2
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sta ZPPTR1
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lda #0
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adc ZPPTR2+1
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sta ZPPTR1+1
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bra .1
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.8 clc
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.9 rts
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Cmd.Exec.SETVAR ldy #0
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lda (ZPPTR2),y
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iny
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cmp #'=' string is '=value' ?
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beq .99 syntax error
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.1 lda (ZPPTR2),y
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iny
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beq .3 no =, GetEnv
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cmp #'=' ARGS contains =, PutEnv
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bne .1
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lda (ZPPTR2),y
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beq .2 "VAR=" go UnsetEnv
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>LDYA ZPPTR2 String is VAR=VALUE...
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>SYSCALL PutEnv.YA
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rts
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.2 dey String is "VAR=", Remove endig '='
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sta (ZPPTR2),y
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>LDYA ZPPTR2 String is "VAR"...
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>SYSCALL UnsetEnv.YA
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rts
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* Print requested VAR
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.3 >LDYA ZPPTR2
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>SYSCALL GetEnv.YA
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bcs .8
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>PUSHYA push value
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>PUSHW ZPPTR2 push name
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>LDYA L.MSG.PRINTENV
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>SYSCALL PrintF.YA
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.8 clc
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.9 rts
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.99 jmp Cmd.Exec.ERRSYN
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*--------------------------------------
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Cmd.Exec.DATE sec
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.HS 90 bcc
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Cmd.Exec.TIME clc
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php
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>LDYA L.TIME
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>SYSCALL TimeYA
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>PUSHWI UsrBuf256
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plp
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bcc .1
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>PUSHW L.FMT.DATE
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bra .2
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.1 >PUSHW L.FMT.TIME
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.2 >PUSHW L.TIME
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>SYSCALL StrFTime
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>LDYAI UsrBuf256
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>SYSCALL PrintF.YA
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bcs Cmd.Exec.ECHO.RTS
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bra Cmd.Exec.ECHO.CR
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*--------------------------------------
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Cmd.Exec.ECHO lda (ZPPtr2)
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beq Cmd.Exec.ECHO.CR
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>LDYA ZPPtr2
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>SYSCALL PrintF.YA
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Cmd.Exec.ECHO.CR
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lda #13
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>SYSCALL PutChar.A
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bcs Cmd.Exec.ECHO.RTS
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lda #10
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>SYSCALL PutChar.A
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Cmd.Exec.ECHO.RTS
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rts
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*--------------------------------------
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Cmd.Exec.READ lda (ZPPtr2)
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beq .9
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lda #0
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>STA.G bSecureRead
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lda pData
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clc
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adc #CMD.VarName
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sta ZPPTR1
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lda pData+1
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adc #0
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sta ZPPTR1+1
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ldy #0
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.1 lda (ZPPtr2),y
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beq .8
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iny
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cmp #' '
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beq .1
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cmp #'-'
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bne .7
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lda (ZPPtr2),y
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beq .9
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iny
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cmp #'S'
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bne .2
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lda #$80
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>STA.G bSecureRead
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bra .1
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.2 cmp #'P'
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bne .9
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lda (ZPPtr2),y
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beq .9
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iny
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cmp #' '
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bne .9
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lda (ZPPtr2),y
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beq .9
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iny
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cmp #'"'
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bne .9
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.3 lda (ZPPtr2),y
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beq .9
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iny
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cmp #'"'
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beq .1
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phy
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>SYSCALL PutChar.A
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ply
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bcs .99
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bra .3
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.9 jmp Cmd.Exec.ERRSYN
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.70 lda (ZPPtr2),y
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cmp #' '
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beq .1
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.7 lda (ZPPTR1)
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cmp #VarLen.MAX
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beq .9
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inc
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sta (ZPPTR1)
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tay
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lda (ZPPtr2),y
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sta (ZPPTR1),y
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bne .70
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.8 lda (ZPPTR1) No var name ? SYNERR
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beq .9
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clc
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.99 rts
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*--------------------------------------
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Cmd.Exec.SLEEP lda (ZPPtr2)
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beq .9
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lda #Sleep
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clc
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adc pData
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tay
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lda /Sleep
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adc pData+1
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>PUSHYA
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>PUSHW ZPPtr2
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>SYSCALL AToI.YA
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bcs .9
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rts
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.9 jmp Cmd.Exec.ERRSYN
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*--------------------------------------
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Cmd.Exec.PAUSE lda #$FF
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>STA.G bPause
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clc
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rts
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*--------------------------------------
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Cmd.Exec.EXIT lda #$FF
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>STA.G bExit
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clc
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SBIN/SHELL.S.CMD
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LOAD /A2OSX.SRC/SBIN/SHELL.S
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ASM
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