implements hardware breakpoints

patches code and data from Code space to System space.

Two literal comparators for matching against literal loads from Code space, and remapping to a corresponding area in System space.

Six instruction comparators for matching against instruction fetches from Code space, and remapping to a corresponding area in System space. Alternatively, you can configure the comparators individually to return a Breakpoint Instruction (BKPT) to the processor core on a match, to provide hardware breakpoint capability.

Two instruction comparators. You can configure each comparator individually to return a Breakpoint Instruction to the processor on a match, to provide hardware breakpoint capability.