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Directories and Files
cpu_core.c contains C code that is common to all CPU architectures. Specifically, this
file contains functions
to measure the interrupt disable time of the
CPU_CRITICAL_ENTER() and CPU_CRITICAL_EXIT() macros, a function that emulates a
count leading zeros instruction and a few other functions.
cpu_core.h contains the function prototypes of the functions provided in cpu_core.c
as well as allocation of the variables used by this module to measure interrupt disable
time.
cpu_def.h contains miscellaneous #define constants used by the μC/CPU module.
\Cfg\Template
This directory contains a configuration template file ( cpu_cfg.h ) that you will need to copy
to your application directory in order to configure the μC/CPU module based on your
application requirements.
cpu_cfg.h determines whether you will enable measurement of the interrupt disable
time, whether your CPU implements a count leading zeros instruction in assembly
language or whether it will need to be emulated in C and more.
\<architecture>
This is the name of the CPU architecture for which μC/CPU was ported to. The ‘<’ and ‘>’
are not part of the actual name.
\<compiler>
This is the name of the compiler or compiler manufacturer used to build the code for the
μC/CPU port. The ‘<’ and ‘>’ are not part of the actual name.
The files in this directory contain the μC/CPU port.
cpu.h contains type definitions to make μC/FS and other modules independent of the
CPU and compiler word sizes. Specifically, you will find the declaration of the
CPU_INT16U , CPU_INT32U , CPU_FP32 and many other data types. Also, this file specifies
whether the CPU is a big- or little-endian machine and contains function prototypes for
functions that are specific to the CPU architecture and more.
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