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784e3de7cd
passwd, ps, purge, shutdown, stty, upper, and vi. These sources are for the versions of the utils shipped with GNO v2.0.4.
207 lines
4.3 KiB
NASM
207 lines
4.3 KiB
NASM
**************************************************************************
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*
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* GNO Purge 3.0
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*
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* Written by Tim Meekins, Procyon, Inc.
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* Based on code originally written by Mike Westerfield.
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*
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* This program is public domain. enjoy it.
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*
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* Parts of this program are dependent on GNOlib and the ByteWorks SYSlib.
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*
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**************************************************************************
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keep purge
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mcopy purge.mac
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Purge START
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handle equ 0
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location equ 0
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nextHandle equ 4
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argv equ 8
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argc equ 12
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verbosity equ 14
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arg equ 16
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;
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; memory manager record
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;
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attributes equ 4
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userID equ 6
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length equ 8
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last equ 12
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next equ 16
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phk
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plb
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sta ~USER_ID
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sty commandline
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stx commandline+2
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stz verbosity
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jsl ~MM_INIT
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ph4 commandline
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clc
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tdc
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adc #argv
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pea 0
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pha
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jsl GNO_PARSEARG
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sta argc
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dec a
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beq start
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dec a
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beq doopt
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showusage WriteCString #Usage
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jmp done
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doopt ldy #4
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lda [argv],y
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sta arg
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iny2
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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 showusage
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ldy #1
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lda [arg],y
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cmp #'v' ;the 0 too..
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bne doopt
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inc verbosity
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start FreeMem before
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FindHandle #Purge,handle
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lb1 ldy #last
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lda [handle],y
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tax
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iny2
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ora [handle],y
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beq lb1a
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lda [handle],y
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sta handle+2
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stx handle
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bra lb1
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lb1a lda verbosity
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beq lb2
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WriteCString #msg1
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lb2 ora2 handle,handle+2,@a
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jeq lb4
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ldy #next
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lda [handle],y
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sta nextHandle
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iny2
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lda [handle],y
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sta nextHandle+2
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ldy #attributes
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lda [handle],y
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jmi lb3
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and #$0300
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jeq lb3
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lda verbosity
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jeq dopurge
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WriteChar #'$'
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ldx handle+2
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lda handle
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jsr PrintHex4
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WriteString #msg2
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ldy #2
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lda [handle],y
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tax
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lda [handle]
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jsr PrintHex4
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WriteString #msg2
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ldy #attributes
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lda [handle],y
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jsr PrintHex2
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WriteString #msg2
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ldy #userID
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lda [handle],y
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jsr PrintHex2
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WriteString #msg2
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ldy #length+2
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lda [handle],y
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tax
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dey2
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lda [handle],y
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jsr PrintHex4
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WriteChar #' '
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stz ref
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apploop ldy #userID
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lda [handle],y
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and #%1111000011111111
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LGetPathname (@a,ref),@yx
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if2 @a,eq,#0,appput
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inc ref
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if2 ref,cc,#128,apploop
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bra oops
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appput WriteString @xy
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oops WriteLine #empty
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dopurge PurgeHandle handle
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lb3 mv4 nextHandle,handle
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jmp lb2
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lb4 CompactMem
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TotalMem @yx
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NewHandle (@xy,~USER_ID,#$0000,#0),handle
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ora2 handle,handle+2,@a
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beq showstat
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DisposeHandle handle
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showstat lda verbosity
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beq Done
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FreeMem After
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WriteCString #beforestr
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ldx before+2
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lda before
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jsr PrintHex4
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WriteCString #leftstr
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WriteCString #afterstr
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ldx after+2
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lda after
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jsr PrintHex4
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WriteCString #leftstr
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Done lda #0
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rtl
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empty str ''
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ref ds 2
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commandline ds 4
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before ds 4
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after ds 4
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msg1 dc c'GNO Purge 3.0',h'0d0a0a'
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dc c'Handle Ptr Attr User Length App',h'0d0a00'
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msg2 str ' $'
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Usage dc c'Usage: purge [-v]',h'0d0a00'
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beforestr dc h'0d0a',c'Before: $',h'00'
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afterstr dc c'After: $',h'00'
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leftstr dc c' bytes free',h'0d0a00'
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PrintHex1 Int2Hex (@a,#hex1str+1,#2)
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WriteString #hex1str
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rts
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hex1str str '00'
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PrintHex4 pha
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txa
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jsr PrintHex1
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pla
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PrintHex2 Int2Hex (@a,#hex2str+1,#4)
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WriteString #hex2str
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rts
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hex2str str '0000'
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END
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