Removed (pretty inconsistently used) tab chars from source code base.

libsrc/atari/fdtoiocb.s

@@ -5,37 +5,37 @@
 ; Convert file descriptor to IOCB number
 ;
 
-	.include "atari.inc"
-	.include "fd.inc"
-	.import fd_table,fd_index
-	.export	fdtoiocb
+        .include "atari.inc"
+        .include "fd.inc"
+        .import fd_table,fd_index
+        .export fdtoiocb
 
-	.code
+        .code
 
 ; gets fd in ax
 ; return iocb index in A, fd_table index in X
 ; return N bit set for invalid fd
 ; all registers destroyed
-.proc	fdtoiocb
+.proc   fdtoiocb
 
-	cpx	#0
-	bne	inval
-	cmp	#MAX_FD_INDEX
-	bcs	inval
-	tax
-	lda	fd_index,x
-	asl	a			; create index into fd table
-	asl	a
-	tax
-	lda	#$ff
-	cmp	fd_table+ft_iocb,x	; entry in use?
-	beq	inval			; no, return error
-	lda	fd_table+ft_usa,x	; get usage counter
-	beq	inval			; 0? should not happen
-	lda	fd_table+ft_iocb,x	; get iocb
-	rts
+        cpx     #0
+        bne     inval
+        cmp     #MAX_FD_INDEX
+        bcs     inval
+        tax
+        lda     fd_index,x
+        asl     a                       ; create index into fd table
+        asl     a
+        tax
+        lda     #$ff
+        cmp     fd_table+ft_iocb,x      ; entry in use?
+        beq     inval                   ; no, return error
+        lda     fd_table+ft_usa,x       ; get usage counter
+        beq     inval                   ; 0? should not happen
+        lda     fd_table+ft_iocb,x      ; get iocb
+        rts
 
-inval:	ldx     #$ff			; sets N
-	rts
+inval:  ldx     #$ff                    ; sets N
+        rts
 
-.endproc	; fdtoiocb
+.endproc        ; fdtoiocb