Attempt to emulate reserved load/store more closely. can't do anything for stores of the same value that are done via a non-reserved store to a reserved location

uses a bitmap that splits up the memory space into 65k blocks per bit.  Currently is using the guest virtual address but should be using physical addresses instead.

Currently if a guest does a reserve on a location and then a reserved store to a totally different location we trigger a breakpoint. This should never happen
Also removed the NEGATED_MUL_blah operations. They weren't necessary, nothing special is needed for the negated result variants.

Added a log message for when watched physical memory has a race, it just would be nice to know when it happens and in what games.

src/xenia/cpu/hir/opcodes.h

@@ -248,9 +248,7 @@ enum Opcode {
   OPCODE_MUL_HI,  // TODO(benvanik): remove this and add INT128 type.
   OPCODE_DIV,
   OPCODE_MUL_ADD,
-  OPCODE_NEGATED_MUL_ADD,
   OPCODE_MUL_SUB,
-  OPCODE_NEGATED_MUL_SUB,
   OPCODE_NEG,
   OPCODE_ABS,
   OPCODE_SQRT,
@@ -292,7 +290,10 @@ enum Opcode {
                      // as we already have OPCODE_ROUND. round double to float (
                      // ppc "single" fpu instruction result rounding behavior )
   OPCODE_SET_NJM,
-	OPCODE_DELAY_EXECUTION, //for db16cyc
+  OPCODE_DELAY_EXECUTION,  // for db16cyc
+  OPCODE_RESERVED_LOAD,
+  OPCODE_RESERVED_STORE,
+
   __OPCODE_MAX_VALUE,  // Keep at end.
 };