MIPS: Implement CheckNotCharacterAfterMinusAnd. This is a commit of...

MIPS: Implement CheckNotCharacterAfterMinusAnd.  This is a commit of http://codereview.chromium.org/9721011/ for Daniel Kalmar

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11314 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/regexp-macro-assembler-mips.cc

@@ -480,7 +480,10 @@ void RegExpMacroAssemblerMIPS::CheckNotCharacterAfterMinusAnd(
     uc16 minus,
     uc16 mask,
     Label* on_not_equal) {
-  UNIMPLEMENTED_MIPS();
+  ASSERT(minus < String::kMaxUtf16CodeUnit);
+  __ Subu(a0, current_character(), Operand(minus));
+  __ And(a0, a0, Operand(mask));
+  BranchOrBacktrack(on_not_equal, ne, a0, Operand(c));
 }