1997-11-18 05:31:00 +00:00
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**************************************************************************
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*
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* The GNO Shell Project
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*
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* Developed by:
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* Jawaid Bazyar
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* Tim Meekins
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*
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1998-04-24 15:38:47 +00:00
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* $Id: dir.asm,v 1.2 1998/04/24 15:38:12 gdr-ftp Exp $
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*
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1997-11-18 05:31:00 +00:00
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**************************************************************************
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*
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* DIR.ASM
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* By Tim Meekins
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*
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* Directory stack management
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*
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**************************************************************************
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1998-04-24 15:38:47 +00:00
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mcopy /obj/gno/bin/gsh/dir.mac
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dummy start ; ends up in .root
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end
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setcom 60
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1997-11-18 05:31:00 +00:00
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MAXD gequ 50
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1998-04-24 15:38:47 +00:00
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1997-11-18 05:31:00 +00:00
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**************************************************************************
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*
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* Initialize directory stack
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*
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**************************************************************************
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InitDStack START
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using DirData
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stz tods
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stz dirstack
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stz dirstack+2
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rts
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END
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**************************************************************************
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*
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* DIRS: builtin command
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* syntax: dirs [-l]
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*
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* display the directory stack
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*
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**************************************************************************
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dirs START
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using DirData
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arg equ 0
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space equ arg+4
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subroutine (4:argv,2:argc),space
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lda argc
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dec a
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beq showshort
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dec a
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bne using
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ldy #4
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lda [argv],y
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sta arg
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ldy #6
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lda [argv],y
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sta arg+2
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lda [arg]
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and #$FF
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cmp #'-'
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bne using
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ldy #1
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lda [arg],y
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cmp #'l'
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beq showlong
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using ldx #^usingstr
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lda #usingstr
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jsr errputs
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bra exit
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showlong jsl dotods
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pea 0
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jsl showdir
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bra exit
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showshort jsl dotods
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pea 1
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jsl showdir
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exit return
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usingstr dc c'usage: dirs [-l]',h'0d00'
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END
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**************************************************************************
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*
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* PUSHD: builtin command
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* syntax: pushd [+n | dir]
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*
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* change directory and push
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*
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**************************************************************************
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pushd START
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using DirData
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using vardata
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count equ 0
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p equ count+2
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arg equ p+4
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space equ arg+4
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subroutine (4:argv,2:argc),space
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lda argc
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dec a
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beq xchange
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dec a
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bne usage
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ldy #4
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lda [argv],y
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sta arg
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ldy #6
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lda [argv],y
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sta arg+2
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lda [arg]
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and #$FF
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cmp #'+'
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beq rotate
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jmp godir
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usage ldx #^usagestr
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lda #usagestr
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jsr errputs
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jmp exit
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xchange lda tods
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bne xgoodie
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ldx #^err1
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lda #err1
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jsr errputs
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jmp exit
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xgoodie jsl dotods
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lda tods
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dec a
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asl a
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asl a
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tax
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lda tods
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asl a
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asl a
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tay
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lda dirstack,x
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pha
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lda dirstack,y
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sta dirstack,x
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pla
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sta dirstack,y
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lda dirstack+2,x
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pha
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lda dirstack+2,y
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sta dirstack+2,x
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pla
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sta dirstack+2,y
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jmp gototop
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rotate add4 arg,#1,p
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pei (p+2)
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pei (p)
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jsr cstrlen
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tax
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Dec2Int (p,@x,#0),@a
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sta count
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cmp #0
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beq godir
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lda tods
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beq roterr
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lda count
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cmp tods
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beq rotloop
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bcc rotloop
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roterr ldx #^err2
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lda #err2
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jsr errputs
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jmp exit
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rotloop lda tods
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dec a
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asl a
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asl a
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tay
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lda dirstack+6,y
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pha
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lda dirstack+4,y
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pha
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rotloop2 lda dirstack,y
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sta dirstack+4,y
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lda dirstack+2,y
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sta dirstack+6,y
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cpy #0
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beq nextrot
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dey
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dey
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dey
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dey
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bra rotloop2
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nextrot pla
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sta dirstack
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pla
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sta dirstack+2
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dec count
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bne rotloop
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bra gototop
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godir jsl dotods
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pei (arg+2)
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pei (arg)
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jsl gotodir
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bne exit
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inc tods
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lda tods
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asl a
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asl a
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tay
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lda #0
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sta dirstack,y
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sta dirstack+2,y
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jsl dotods
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bra done
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gototop lda tods
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asl a
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asl a
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tay
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lda dirstack+2,y
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pha
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lda dirstack,y
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pha
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jsl gotodir
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done lda varpushdsil
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bne exit
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pea 1
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jsl showdir
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exit return
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usagestr dc c'usage: pushd [+n | dir]',h'0d00'
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err1 dc c'pushd: No other directory',h'0d00'
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err2 dc c'pushd: Directory stack not that deep',h'0d00'
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END
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**************************************************************************
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*
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* POPD: builtin command
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* syntax: popd [+n]
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*
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* pop a directory from stack and cd to it
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*
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**************************************************************************
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popd START
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using DirData
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using vardata
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count equ 0
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arg equ count+2
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space equ arg+4
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subroutine (4:argv,2:argc),space
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lda argc
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dec a
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jeq noarg
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dec a
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bne using
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ldy #4
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lda [argv],y
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sta arg
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ldy #6
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lda [argv],y
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sta arg+2
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lda [arg]
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and #$FF
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cmp #'+'
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beq plus
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using ldx #^usingstr
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lda #usingstr
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jsr errputs
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jmp exit
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plus add4 arg,#1,arg
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pei (arg+2)
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pei (arg)
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jsr cstrlen
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tax
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Dec2Int (arg,@x,#0),@a
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sta count
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cmp #0
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beq noarg
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lda tods
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beq pluserr
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lda count
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cmp tods
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beq doplus
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bcc doplus
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pluserr ldx #^err2
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lda #err2
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jsr errputs
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bra exit
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doplus jsl dotods
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sub2 tods,count,@a
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asl a
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asl a
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tax
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phx
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lda dirstack+2,x
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pha
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lda dirstack,x
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pha
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jsl nullfree
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plx
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plusloop lda dirstack+4,x
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sta dirstack,x
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lda dirstack+6,x
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sta dirstack+2,x
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inx4
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dec count
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bne plusloop
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dec tods
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bra gototop
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noarg lda tods
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bne noarg0
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ldx #^err1
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lda #err1
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jsr errputs
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bra exit
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noarg0 lda tods
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asl a
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asl a
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tay
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lda dirstack+2,y
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pha
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lda dirstack,y
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pha
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jsl nullfree
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dec tods
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gototop lda tods
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asl a
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asl a
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tay
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lda dirstack+2,y
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pha
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lda dirstack,y
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pha
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jsl gotodir
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lda varpushdsil
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bne exit
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pea 1
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jsl showdir
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exit return
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usingstr dc c'Usage: popd [+n]',h'0d00'
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err1 dc c'popd: Directory stack empty',h'0d00'
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err2 dc c'popd: Directory stack not that deep',h'0d00'
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END
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**************************************************************************
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*
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* Set prefix 0 to the passed c string
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*
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**************************************************************************
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gotodir PRIVATE
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retval equ 0
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space equ retval+2
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subroutine (4:dir),space
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stz retval
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pei (dir+2)
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pei (dir)
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jsr c2gsstr
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sta PRecPath
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sta GRecPath
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stx PRecPath+2
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stx GRecPath+2
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lock mutex
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GetFileInfo GRec
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bcc ok
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ohshit sta Err
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Error Err
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inc retval
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bra done
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ok if2 GRecFT,eq,#$F,ok2
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ldx dir+2
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lda dir
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jsr errputs
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ldx #^direrr
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lda #direrr
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jsr errputs
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inc retval
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bra done
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ok2 SetPrefix PRec
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bcs ohshit
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done ph4 PRecPath
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jsl nullfree
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unlock mutex
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return 2:retval
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mutex key
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PRec dc i'2'
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PRecNum dc i'0'
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PRecPath ds 4
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GRec dc i'3'
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GRecPath ds 4
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GRecAcc ds 2
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GRecFT ds 2
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Err ds 2
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|
|
dirErr dc c': Not a directory',h'0d00'
|
|
|
|
|
|
|
|
END
|
|
|
|
|
|
|
|
**************************************************************************
|
|
|
|
*
|
|
|
|
* Display the directory stack
|
|
|
|
*
|
|
|
|
**************************************************************************
|
|
|
|
|
|
|
|
showdir PRIVATE
|
|
|
|
|
|
|
|
using DirData
|
|
|
|
|
|
|
|
idx equ 0
|
|
|
|
space equ idx+2
|
|
|
|
|
|
|
|
subroutine (2:flag),space
|
|
|
|
|
|
|
|
lda tods
|
|
|
|
asl a
|
|
|
|
asl a
|
|
|
|
sta idx
|
|
|
|
|
|
|
|
loop lda flag
|
|
|
|
beq long
|
|
|
|
ldy idx
|
|
|
|
lda dirstack+2,y
|
|
|
|
pha
|
|
|
|
lda dirstack,y
|
|
|
|
pha
|
|
|
|
jsl path2tilde
|
|
|
|
phx
|
|
|
|
pha
|
|
|
|
jsr puts
|
|
|
|
jsl nullfree
|
|
|
|
bra next
|
|
|
|
long ldy idx
|
|
|
|
lda dirstack+2,y
|
|
|
|
tax
|
|
|
|
lda dirstack,y
|
|
|
|
jsr puts
|
|
|
|
next lda #' '
|
|
|
|
jsr putchar
|
|
|
|
lda idx
|
|
|
|
beq done
|
|
|
|
sub2 idx,#4,idx
|
|
|
|
bra loop
|
|
|
|
|
|
|
|
done jsr newline
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
END
|
|
|
|
|
|
|
|
**************************************************************************
|
|
|
|
*
|
|
|
|
* Set the top of the stack to the current directory
|
|
|
|
*
|
|
|
|
**************************************************************************
|
|
|
|
|
|
|
|
dotods PRIVATE
|
|
|
|
|
|
|
|
using DIRDATA
|
|
|
|
|
|
|
|
p equ 0
|
|
|
|
idx equ p+4
|
|
|
|
space equ idx+2
|
|
|
|
|
|
|
|
subroutine (0:dummy),space
|
|
|
|
|
|
|
|
lda tods
|
|
|
|
asl a
|
|
|
|
asl a
|
|
|
|
sta idx
|
|
|
|
tay
|
|
|
|
lda dirstack,y
|
|
|
|
ora dirstack+2,y
|
|
|
|
beq setit
|
|
|
|
|
|
|
|
lda dirstack+2,y
|
|
|
|
pha
|
|
|
|
lda dirstack,y
|
|
|
|
pha
|
|
|
|
jsl nullfree
|
|
|
|
|
|
|
|
setit lock mutex
|
|
|
|
jsl alloc256
|
|
|
|
sta gppath
|
|
|
|
stx gppath+2
|
|
|
|
sta p
|
|
|
|
stx P+2
|
|
|
|
lda #254
|
|
|
|
sta [p]
|
|
|
|
GetPrefix gpparm
|
|
|
|
ldy #2
|
|
|
|
lda [p],y
|
|
|
|
xba
|
|
|
|
sta [p],y
|
|
|
|
add4 p,#3,p
|
|
|
|
pei (p+2)
|
|
|
|
pei (p)
|
|
|
|
jsr p2cstr
|
|
|
|
sta p
|
|
|
|
stx p+2
|
|
|
|
ldx gppath+2
|
|
|
|
lda gppath
|
|
|
|
jsl free256
|
|
|
|
|
|
|
|
unlock mutex
|
|
|
|
|
|
|
|
ldy idx
|
|
|
|
lda p
|
|
|
|
sta dirstack,y
|
|
|
|
lda p+2
|
|
|
|
sta dirstack+2,y
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
mutex key
|
|
|
|
|
|
|
|
gpparm dc i2'2'
|
|
|
|
dc i2'0'
|
|
|
|
gppath dc i4'0'
|
|
|
|
|
|
|
|
END
|
|
|
|
|
|
|
|
**************************************************************************
|
|
|
|
*
|
|
|
|
* Directory stack data
|
|
|
|
*
|
|
|
|
**************************************************************************
|
|
|
|
|
|
|
|
DirData DATA
|
|
|
|
|
|
|
|
dirstack ds MAXD*4
|
|
|
|
tods dc i'0'
|
|
|
|
|
|
|
|
END
|
|
|
|
|
|
|
|
**************************************************************************
|
|
|
|
*
|
|
|
|
* Replace $HOME with a '~' in string
|
|
|
|
*
|
|
|
|
**************************************************************************
|
|
|
|
|
|
|
|
path2tilde START
|
|
|
|
|
|
|
|
ptr equ 0
|
|
|
|
newpath equ ptr+4
|
|
|
|
home equ newpath+4
|
|
|
|
space equ home+4
|
|
|
|
|
|
|
|
subroutine (4:path),space
|
|
|
|
|
|
|
|
pei (path+2)
|
|
|
|
pei (path)
|
|
|
|
jsr cstrlen
|
|
|
|
inc2 a
|
|
|
|
pea 0
|
|
|
|
pha
|
|
|
|
jsl ~NEW
|
|
|
|
sta newpath
|
|
|
|
stx newpath+2
|
|
|
|
sta ptr
|
|
|
|
stx ptr+2
|
|
|
|
|
|
|
|
jsl alloc256
|
|
|
|
sta home
|
|
|
|
stx home+2
|
|
|
|
sta varparm+4
|
|
|
|
stx varparm+6
|
|
|
|
Read_Variable varparm
|
|
|
|
|
|
|
|
ldy #0
|
|
|
|
lda [home]
|
|
|
|
and #$FF
|
|
|
|
beq copyrest
|
|
|
|
tax
|
|
|
|
checkhome lda [path],y
|
|
|
|
and #$FF
|
|
|
|
beq notfound2
|
|
|
|
jsr tolower
|
|
|
|
jsr toslash
|
|
|
|
pha
|
|
|
|
iny
|
|
|
|
lda [home],y
|
|
|
|
and #$FF
|
|
|
|
jsr tolower
|
|
|
|
jsr toslash
|
|
|
|
cmp 1,s
|
|
|
|
bne notfound
|
|
|
|
pla
|
|
|
|
dex
|
|
|
|
bne checkhome
|
|
|
|
cmp #'/'
|
|
|
|
beq found
|
|
|
|
lda [path],y
|
|
|
|
and #$FF
|
|
|
|
beq found
|
|
|
|
jsr toslash
|
|
|
|
cmp #'/'
|
|
|
|
bne notfound2
|
|
|
|
|
|
|
|
found lda #'~'
|
|
|
|
sta [ptr]
|
|
|
|
inc ptr
|
|
|
|
bra copyrest
|
|
|
|
|
|
|
|
notfound pla
|
|
|
|
notfound2 ldy #0
|
|
|
|
copyrest short a
|
|
|
|
copyloop lda [path],y
|
|
|
|
beq endcopy
|
|
|
|
cmp #':'
|
|
|
|
bne copyput
|
|
|
|
lda #'/'
|
|
|
|
copyput sta [ptr]
|
|
|
|
long a
|
|
|
|
inc ptr
|
|
|
|
short a
|
|
|
|
iny
|
|
|
|
bra copyloop
|
|
|
|
endcopy sta [ptr]
|
|
|
|
long a
|
|
|
|
dec ptr
|
|
|
|
lda [ptr]
|
|
|
|
cmp #'/'
|
|
|
|
bne skipshorten
|
|
|
|
lda #0
|
|
|
|
sta [ptr]
|
|
|
|
|
|
|
|
skipshorten ldx home+2
|
|
|
|
lda home
|
|
|
|
jsl free256
|
|
|
|
|
|
|
|
return 4:newpath
|
|
|
|
|
|
|
|
varparm dc i4'homename'
|
|
|
|
ds 4
|
|
|
|
|
|
|
|
homename str 'home'
|
|
|
|
|
|
|
|
END
|