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      1 #! /usr/bin/awk -f
      2 #
      3 #	create  dos_strerror()  from dos_errno.h
      4 #
      5 #	written by ITOH Yasufumi
      6 #	public domain
      7 #
      8 #	$NetBSD: makestrerror.awk,v 1.3 2011/02/21 02:31:59 itohy Exp $
      9 
     10 /^\/\* dos_errlist begin \*\/$/,/^\/\* dos_errlist end \*\/$/ {
     11 	if ($0 ~ /^\/\* dos_errlist begin \*\/$/) {
     12 		# assembly code
     13 		print "| This file is automatically generated.  DO NOT EDIT."
     14 		print "#include \"dos_asm.h\""
     15 		print "#include \"dos_errno.h\""
     16 		print "	.text"
     17 		print "	.even"
     18 		print "GLOBAL(dos_nerr)"
     19 		print "	.long	DOS_ELAST+1"
     20 		print ""
     21 		print "ENTRY_NOPROFILE(dos_strerror)"
     22 		print "	movel	%sp@(4),%d0"
     23 		print "	moveq	#80,%d1"
     24 		print "	cmpl	%d0,%d1"
     25 		print "	bnes	Lnot80"
     26 		print "	moveq	#DOS_EEXIST,%d0"
     27 		print "Lnot80:	moveq	#DOS_ELAST+1,%d1"
     28 		print "	cmpl	%d1,%d0"
     29 		print "	bcss	Lnotuk"
     30 		print "	movel	%d1,%d0"
     31 		print "Lnotuk:	lslw	#1,%d0"
     32 		print "Lh1:\tmovew\t%pc@(Lerrtbl-Lh1-2:B,%d0:W),%d0\t| 303B 000A"
     33 		print "Lh2:\tlea\t%pc@(Lerrtbl-Lh2-2:B,%d0:W),%a0\t| 41FB 0006"
     34 		print "	movel	%a0,%d0"
     35 		print "	rts"
     36 		print ""
     37 		print "Lerrtbl:"
     38 		nmsg = 0
     39 	} else if ($0 ~ /^\/\* dos_errlist end \*\/$/) {
     40 		print "\t.word\tLukmsg-Lerrtbl		| default message"
     41 		print ""
     42 		# error strings
     43 		for (i = 0; i < nmsg; i++)
     44 			print "Lmsg" i ":\t.asciz\t\"" msg[i] "\""
     45 
     46 		print "Lukmsg:\t.asciz\t\"Unknown error\""
     47 		exit
     48 	} else {
     49 		if ($3 != nmsg || $4 != "/*") {
     50 			printf FILENAME ":" NR ": format error"
     51 			exit(1);
     52 		}
     53 		# offset table
     54 		print "\t.word\tLmsg" nmsg "-Lerrtbl"
     55 		$1 = ""
     56 		$2 = ""
     57 		$3 = ""
     58 		$4 = ""
     59 		msg[nmsg] = substr($0, 5, length - 7)
     60 		nmsg++
     61 	}
     62 }
     63