:orphan:

.. title:: CONFIG_ARC_HAS_ZOL

.. kconfig:: CONFIG_ARC_HAS_ZOL

CONFIG_ARC_HAS_ZOL
##################

*(No prompt -- not directly user assignable.)*

Type: ``bool``

Help
====

.. code-block:: none

    ARCv2 CPUs have ZOL hardware loop mechanism which the ARCv3 ISA drops.
    Architecturally ZOL provides
    - LPcc instruction
    - LP_COUNT core reg
    - LP_START, LP_END aux regs
    Disabling this option removes usage of ZOL regs from code

Direct dependencies
===================

\ :kconfig:`ISA_ARCV2 <CONFIG_ISA_ARCV2>` && \ :kconfig:`ARC <CONFIG_ARC>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y

Kconfig definition
==================



At ``<Zephyr Architecture>/arc/Kconfig:104``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:39`` → ``<Zephyr Architecture>/Kconfig:12``

Menu path: (Top) → ARC Options → ARC CPU Options

.. code-block:: kconfig

    config ARC_HAS_ZOL
    	bool
    	default y
    	depends on ISA_ARCV2 && ARC
    	help
    	  ARCv2 CPUs have ZOL hardware loop mechanism which the ARCv3 ISA drops.
    	  Architecturally ZOL provides
    	  - LPcc instruction
    	  - LP_COUNT core reg
    	  - LP_START, LP_END aux regs
    	  Disabling this option removes usage of ZOL regs from code

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*