Glossary
2017 Microchip Technology Inc. DS50002596A-page 91
A region of memory managed and allocated by the compiler in which variables are
statically assigned space. It replaces a software stack when such mechanisms cannot
be efficiently implemented on the target device. It precludes reentrancy.
Static RAM or SRAM
Static Random Access Memory. Program memory you can read/write on the target
board that does not need refreshing frequently.
Status Bar
The Status Bar is located on the bottom of the MPLAB IDE/MPLAB X IDE window and
indicates such current information as cursor position, development mode and device,
and active tool bar.
Step Into
This command is the same as Single Step. Step Into (as opposed to Step Over) follows
a CALL instruction into a subroutine.
Step Over
Step Over allows you to debug code without stepping into subroutines. When stepping
over a CALL instruction, the next breakpoint will be set at the instruction after the CALL.
If for some reason the subroutine gets into an endless loop or does not return properly,
the next breakpoint will never be reached. The Step Over command is the same as
Single Step except for its handling of CALL instructions.
Step Out
Step Out allows you to step out of a subroutine which you are currently stepping
through. This command executes the rest of the code in the subroutine and then stops
execution at the return address to the subroutine.
Stimulus
Input to the simulator, i.e., data generated to exercise the response of simulation to
external signals. Often the data is put into the form of a list of actions in a text file.
Stimulus may be asynchronous, synchronous (pin), clocked and register.
Stopwatch
A counter for measuring execution cycles.
Storage Class
Determines the lifetime of the memory associated with the identified object.
Storage Qualifier
Indicates special properties of the objects being declared (e.g.,
const).
Symbol
A symbol is a general purpose mechanism for describing the various pieces which
comprise a program. These pieces include function names, variable names, section
names, file names, struct/enum/union tag names, etc. Symbols in MPLAB IDE/MPLAB
X IDE refer mainly to variable names, function names and assembly labels. The value
of a symbol after linking is its value in memory.
Symbol, Absolute
Represents an immediate value such as a definition through the assembly
.equ
directive.
System Window Control
The system window control is located in the upper left corner of windows and some
dialogs. Clicking on this control usually pops up a menu that has the items “Minimize,”
“Maximize,” and “Close.”
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