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diff --git a/run_sed.sh b/run_sed.sh
new file mode 100755
index 0000000..115ab6a
--- /dev/null
+++ b/run_sed.sh
@@ -0,0 +1,37 @@
+#!/bin/sh -x
+
+# sed -i -e '/.model flat/i\
+# \t\t.xmm\r' StarCraft.asm
+
+usyms="copy_start ___from_strstr_to_strchr unknown_libname_36 unknown_libname_41 unknown_libname_58"
+
+f=/tmp/sedcmd_
+echo -n "sed -i -e '/.model flat/i\\\t\t.xmm\r' -e '" > $f
+for sym in $usyms; do
+  echo -n "s/^\<$sym\>:\([^:]\)/$sym::\1/g;" >> $f
+done
+
+echo "\
+s/^\(loc[r_].*[0-9A-F]:\)[^:]\(.*\;\)/\1:\t\2/g;\
+s/dd[[:blank:]]rva/dd/;\
+s/\<fldcw\>\t\[esp+4+var_4\]/fldcw\tword ptr \[esp\]/;\
+s/\<large \(.*fs:\)/\1/;\
+s/lea\t\(e.[px]\), \[\1+0\]/align 10h/;\
+s/\[\(e..\)+\(e.p\)\]/\[\2+\1\]/;\
+s/\<lea\t\(e..\), \[\(e.p\)+\(e.x\)+/lea\t\1, \[\3+\2+/;\
+s/\[\(e.p\)+\(e.i\)+/\[\2+\1+/;\
+s/\<pushf\>/pushfd/;\
+s/\<popf\>/popfd/;\
+s/\(\<j[mn]\?[abceglopszp]e\?\>\)\tloc_/\1\tnear ptr loc_/;\
+s/\<jmp\tsub_/jmp\tnear ptr sub_/;\
+' StarCraft.asm" >> $f
+. $f
+
+# manual fixup:
+# - 'end start' -> 'end'
+# - 'lea     ecx, [ecx+0]' -> align
+# - add 'near ptr' to some jumps
+# - 'cmp     [ebp+edx+0], cl' -> 'cmp     [edx+ebp+0], cl'
+# - 0FFxxh constants - masm treats a byte, ONLY sometimes prefix with 'word ptr'
+# - jmp near:
+#   - jmp _strchr