Add some stuff.

From-SVN: r15978

gcc/LITERATURE

@@ -29,3 +29,13 @@ Collected papers/sites on standards, compilers, optimization, etc.
 
 	http://www.mkp.com/books_catalog/1-55860-320-4.asp
 
+- Various MIPS stuff:
+
+        http://www.sgi.com/MIPS/arch/mips4docs/mipsiv_3_2.pdf  (*)
+        http://www.sgi.com/MIPS/arch/MIPS16/MIPS16.whitepaper.pdf
+        http://www.sgi.com/MIPS/arch/MIPS16/mips16.pdf
+        http://www.sgi.com/MIPS/arch/ISA5/isa5_tech_brf.pdf
+        http://www.sgi.com/MIPS/arch/ISA5/MDMXspec.pdf
+        http://www.sgi.com/MIPS/arch/ISA5/MIPSVspec.pdf
+
+