In the simulator, real time simply means execution of the microcontroller instructions as fast as they can be simulated
by the host CPU.
Recursive Calls
A function that calls itself, either directly or indirectly.
Recursion
The concept that a function or macro, having been defined, can call itself. Great care should be taken when writing
recursive macros; it is easy to get caught in an infinite loop where there will be no exit from the recursion.
Re-entrant
A function that may have multiple, simultaneously active instances. This may happen due to either direct or indirect
recursion or through execution during interrupt processing.
Relaxation
The process of converting an instruction to an identical, but smaller instruction. This is useful for saving on code size.
MPLAB XC16 currently knows how to relax a CALL instruction into an RCALL instruction. This is done when the
symbol that is being called is within +/- 32k instruction words from the current instruction.
Relocatable
An object whose address has not been assigned to a fixed location in memory.
Relocatable Section
16-bit assembler – A section whose address is not fixed (absolute). The linker assigns addresses to relocatable
sections through a process called relocation.
Relocation
A process performed by the linker in which absolute addresses are assigned to relocatable sections and all symbols
in the relocatable sections are updated to their new addresses.
ROM
Read Only Memory (Program Memory). Memory that cannot be modified.
Run
The command that releases the emulator from halt, allowing it to run the application code and change or respond to
I/O in real time.
Run-time Model
Describes the use of target architecture resources.
Run-time Watch
A Watches window where the variables change in as the application is run. See individual tool documentation to
determine how to set up a run-time watch. Not all tools support run-time watches.
Scenario
For MPLAB SIM simulator, a particular setup for stimulus control.
Section
The GCC equivalent of an OCG psect. A block of code or data which is treated as a whole by the linker.
Section Attribute
A GCC characteristic ascribed to a section (e.g., an access section).
Glossary
© 2020 Microchip Technology Inc.
User Guide
DS50002751D-page 78
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