8.18 B (Set breakpoint)
8.18.1 Function
The B (or B+) command sets a breakpoint. The argument gives an instruction address or a range of
addresses where you wish to halt the execution. Once the breakpoint is reached, instruction execution is
temporarily halted and the next instruction to be executed is displayed. You may then examine registers
and / or storage etc. To continue execution after reaching a breakpoint, enter the “G” command.
The “B” command is synonymous with the “S+” command.
8.18.2 Syntax
Descriptive
addr addr-addr
Diagram
¬¬
addr ¬¬¬¬¬¬§¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ÊÍ
addr-addr
8.18.3 Parameter
addr
Instruction address where instruction execution is to be stopped.
addr-addr
Range of instruction addresses where instruction execution is to be stopped.
8.18.4 Examples
Example 1:
Set a breakpoint at instruction address 01000000.
HHC00013I Herc command: 'b+ 01000000'
HHC02229I Instruction break on range 1000000-1000000
Figure 36: B command
