dnexti
Steps machine instructions, stepping over subroutines
Format:
dnexti [ num-steps ]
Arguments:
num-steps
An integer number greater than 0, indicating the number of instructions to be executed.
Description:
The dnexti command executes machine-level instructions; that is, it advances the program by a single instruction. However, if the instruction invokes a subfunction, dnexti executes the subfunction as if it were one instruction; that is, it steps over the call. This command steps the thread of interest while allowing other threads in the process to run.
The optional num-steps argument tells the CLI how many dnexti operations it should perform. If you do not specify num-steps, the default is 1.
The dnexti command iterates over the arenas in the focus set, performing a thread-level, process-level, or group-level step in each arena, depending on the width of the arena. The default width is process (p).
For more information on stepping in processes and threads, see dstep.
Command alias:
You may find the following aliases useful:
| Alias |
Definition |
Meaning |
| ni |
{dnexti} |
Runs the thread of interest one instruction while allowing other threads in the process to run. |
| NI |
{dfocus g dnexti} |
A group stepping command. This searches for threads in the share group that are at the same PC as the thread of interest, and steps one such "aligned" thread in each member one instruction. The rest of the control group runs freely. |
| nil |
{dfocus L dnexti} |
Steps the process threads in "lockstep". This steps the thread of interest one instruction, and runs all threads in the process that are at the same PC as the thread of interest to the same statement. Other threads in the process run freely. The group of threads that are at the same PC is called the lockstep group. This alias does not force process width. If the default focus is set to group, this steps the group. |
| NIL |
{dfocus gL dnexti} |
Steps "lockstep" threads in the group. This steps all threads in the share group that are at the same PC as the thread of interest one instruction. Other threads in the control group run freely. |
| niw |
{dfocus W dnexti} |
Steps worker threads in the process. This steps the thread of interest one instruction, and runs all worker threads in the process to the same (goal) statement. The nonworker threads in the process run freely. This alias does not force process width. If the default focus is set to group, this steps the group. |
| NIW |
{dfocus gW dnexti} |
Steps worker threads in the group. This steps the thread of interest one instruction, and runs all worker threads in the same share group to the same statement. All other threads in the control group run freely. |
Examples:
dnexti
Steps one machine-level instruction.
ni 10
Steps ten machine-level instructions.
NI
Steps one instruction and runs all other processes in the group that were executing at that instruction to the next instruction as well.
f t n
Steps the thread one machine-level instruction.
dfocus 3. dnexti
Steps process 3 one machine-level instruction.
