%boolean ( dst cc temp -- )

Vocabulary

cpu.x86

Inputs

dst	register
cc	comparision symbol
temp	temporary register

Outputs

None

Word description

Helper word for emitting conditional move instructions.

See also

CMOVL, CMOVLE, CMOVG, CMOVGE, CMOVE, CMOVNE

Definition

USING: combinators compiler.cfg.comparisons cpu.x86.assembler
kernel ;

IN: cpu.x86

: %boolean ( dst cc temp -- )
    swap order-cc {
        { cc< [ \ CMOVL (%boolean) ] }
        { cc<= [ \ CMOVLE (%boolean) ] }
        { cc> [ \ CMOVG (%boolean) ] }
        { cc>= [ \ CMOVGE (%boolean) ] }
        { cc= [ \ CMOVE (%boolean) ] }
        { cc/= [ \ CMOVNE (%boolean) ] }
    } case ;