struct-return-register ( -- reg/f )

Vocabulary

cpu.architecture

Inputs

None

Outputs

reg/f

a machine register or f

Word description

Returns the dedicated register for a hidden structure result pointer, or f when the pointer uses normal parameter allocation. A dedicated result register does not consume an argument register or stack slot.

Definition

USING: system ;

IN: cpu.architecture

HOOK: struct-return-register cpu ( -- reg/f )

Methods

USING: cpu.architecture kernel ;

M: object struct-return-register f ;