add missing files not taken with github import

util/libgcc_helper.S

@@ -0,0 +1,70 @@
+//
+// needed for ELF compilation of x86emu which uses 64 bit multiplication and division. This
+// is implemented in libgcc.a. However, the ELF compiler emits leading underscores and libgcc
+// is not compiled like that - we must reimplement the symbols.
+//
+// FIXME: This is a quirk and should be replaced by BaS' own implementation later
+//
+		.global		___divdi3
+		.extern		__divdi3
+___divdi3:	jmp		__divdi3
+
+		.global		___muldi3
+		.extern		__muldi3
+___muldi3:	jmp		__muldi3
+
+		.global		___moddi3
+		.extern		__moddi3
+___moddi3:	jmp		__moddi3
+
+		.global		___udivdi3
+		.extern		__udivdi3
+___udivdi3:	jmp		__udivdi3
+
+		.global		___umoddi3
+		.extern		__umoddi3
+___umoddi3:	jmp		__umoddi3
+
+		.global		___divdf3
+		.extern		__divdf3
+___divdf3:	jmp		__divdf3
+
+		.global		___muldf3
+		.extern		__muldf3
+___muldf3:	jmp		__muldf3
+
+		.global		___subsf3
+		.extern		__subsf3
+___subsf3:	jmp		__subsf3
+
+		.global		___floatsidf
+		.extern		__floatsidf
+___floatsidf:	jmp		__floatsidf
+
+		.global		___floatsisf
+		.extern		__floatsisf
+___floatsisf:	jmp		__floatsisf
+
+		.global		___extendsfdf2
+		.extern		__extendsfdf2
+___extendsfdf2:	jmp		__extendsfdf2
+
+		.global		___floatunsidf
+		.extern		__floatunsidf
+___floatunsidf:	jmp		__floatunsidf
+
+		.global		___truncdfsf2
+		.extern		__truncdfsf2
+___truncdfsf2:	jmp		__truncdfsf2
+
+		.global		___ltsf2
+		.extern		__ltsf2
+___ltsf2:	jmp		__ltsf2
+
+		.global		___fixdfsi
+		.extern		__fixdfsi
+___fixdfsi:	jmp		__fixdfsi
+
+		.global		___fixsfsi
+		.extern		__fixsfsi
+___fixsfsi:	jmp		__fixsfsi