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;* SetAttribute - Sets the attribute(s) of a specified file.
;*
;* Shows:   DOS Function - 43h (Get or Set File Attributes)
;*
;* Params:  attr - Attribute bits set as follows:
;*                    bit 0 = read-only             bit 3 = volume label
;*                    bit 1 = hidden                bit 4 = subdirectory
;*                    bit 2 = system                bit 5 = archive
;*                 (attr = 0 for normal data file)
;*          fspec - Pointer to ASCIIZ file specification
;*
;* Return:  Short integer with error code
;*          0 if successful
;*          1 if delete error
 
SetAttribute PROC \
        USES ds, \
        attr:WORD, fspec:PTR BYTE
 
        LoadPtr ds, dx, fspec           ; DS:DX = file specification
        mov     cx, attr                ; Put attribute code in CX
        mov     ax, 4301h               ; AH = function #
                                        ; AL = 1 (set attribute)
        int     21h                     ; Set File Attributes
        mov     ax, 0                   ; Clear code, keep flags
        jnc     exit                    ; If successful, exit
        inc     ax                      ; Else set error code
exit:   ret
 
SetAttribute ENDP
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