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¶

y if FPU

Kconfig definition¶

At <Zephyr>/arch/arc/Kconfig:256

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12

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

config ARC_HAS_ACCL_REGS
    bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6)"
    default y if FPU
    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.)