4f28289df2
- "Normalized" some Assembly code. - Implemented CFS_APPEND in pfs_open(). - Made CFS_WRITE work in VICE's virtual disk/file system.
60 lines
2.2 KiB
ArmAsm
60 lines
2.2 KiB
ArmAsm
;
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; Copyright (c) 2016, Greg King
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; All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
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; are met:
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; 1. Redistributions of source code must retain the above copyright
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; notice, this list of conditions, and the following disclaimer.
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; 2. Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions, and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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; 3. Neither the name of the author nor the names of contributors
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; may be used to endorse or promote products derived from this software
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; without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"; AND,
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; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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; SUCH DAMAGE.
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;
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; This file is part of the Contiki operating system.
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;
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; Author: Greg King <gregdk@users.sf.net>
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;
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;---------------------------------------------------------------------
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.importzp ptr2
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.import addysp
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.import pfs_makename, pfs_scratch
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.export _pfs_remove
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;---------------------------------------------------------------------
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MAXLEN = 80 ; max. filename length
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FNL := $B7 ; filename length
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;---------------------------------------------------------------------
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.proc _pfs_remove
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asl ptr2 ; force pfs_makename to format for pfs_scratch
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jsr pfs_makename
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ldx FNL
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beq error ; no name
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jsr pfs_scratch
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ldx #>$0000
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bcs error
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ret: txa
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ldy #MAXLEN + 8 ; free filename space
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jmp addysp
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error: dex ;(ldx #>-1)
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bne ret
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.endproc
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