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.)

Defaults

• y if CPU_HS3X

• y if FPU

Kconfig definition

At <Zephyr Architecture>/arc/Kconfig:263

Included via Kconfig:8 → Kconfig.zephyr:39 → <Zephyr Architecture>/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 CPU_HS3X
    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.)