CONFIG_ARC_HAS_ACCL_REGS

Reg Pair ACCL:ACCH (FPU and/or MPY > 6)

Type: bool

Help

Depending on the configuration, CPU can contain accumulator reg-pair (also referred to as r58:r59). These can also be used by gcc as GPR so kernel needs to save/restore per process

Direct dependencies

ARC

(Includes any dependencies from ifs and menus.)

Default

Kconfig definition

At arch/arc/Kconfig:211

Included via Kconfig:8Kconfig.zephyr:34arch/Kconfig:12

Menu path: (Top) → ARC Options → ARCv2 Family Options

config ARC_HAS_ACCL_REGS
    bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6)"
    default y if FLOAT
    depends on ARC
    help
      Depending on the configuration, CPU can contain accumulator reg-pair
      (also referred to as r58:r59). These can also be used by gcc as GPR so
      kernel needs to save/restore per process

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)