Step - HP MC68360 User Manual

Chapter 11: Emulator/Analyzer Interface Commands

step

step
The step command allows sequential analysis of program instructions by causing
the emulation processor to execute a specified number of assembly instructions or
source lines.
You can display the contents of the processor registers, trace memory, and
emulation or target memory after each step command.
Source line stepping is implemented by single stepping assembly instructions until
the next PC is beyond the address range of the current source line. When
attempting source line stepping on assembly code (with no associated source line),
stepping will complete when a source line is found. Therefore, stepping only
assembly code may step forever. To abort stepping, press <CTRL>c.
When displaying memory mnemonic and stepping, the next instruction that will
step is highlighted. The memory mnemonic display autopages to the new address
if the next PC goes outside of the currently displayed address range. This feature
works even if stepping is performed in a different emulation window than one
displaying memory mnemonic.
If no value is entered for <NUMBER> times, only one step instruction is executed
each time you press <RETURN>. Multiple instructions can be executed by
holding down the <RETURN> key. Also, the default step is for assembly code
lines, not source code lines.
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