Improve assembler: can now properly assemble lain.com

host/as

@@ -1,4 +1,7 @@
 #!/bin/sh
 outfile="$1"
 infile="$2"
-( awk -f host/asm.awk -v of=sym <"$infile"; cat "$infile") | awk -f host/asm.awk -v of=lst
+listing="${outfile%.*}.lst"
+( awk -f host/asm.awk -v of=sym <"$infile"; cat "$infile") | awk -f host/asm.awk -v of=lst >"$listing"
+grep -A1 '\*\*\*\*' "$listing" && exit 1
+cut -d' ' -f2 "$listing" | xxd -r -p >"$outfile"