arm7_9_assign_wp() function

Pointer to the common struct for an ARM7/9 target

Pointer to the breakpoint to be used as a watchpoint

Probe EmbeddedICE module and set up local records of its registers. Different versions of the modules have different capabilities, such as hardware support for vector_catch, single stepping, and monitor mode.

Setup an ARM7/9 target's embedded ICE registers for software breakpoints.

Clear watchpoints for an ARM7/9 target.