%copy ( dst src rep -- )

Vocabulary

cpu.architecture

Inputs

dst	destination
src	source
rep	a representation

Outputs

None

Word description

Emits code copying a value from a register, arbitrary memory location or spill-slot to a destination.

Examples

USING: cpu.architecture make ; RAX RBX int-rep [ %copy ] B{ } make disassemble
000000000108a970: 4889d8 mov rax, rbx

Definition

USING: system ;

IN: cpu.architecture

HOOK: %copy cpu ( dst src rep -- )

Methods

USING: cpu.architecture kernel system ;

M: arm.64 %copy 2over eq? [ 3drop ] [ 3drop ] if ;


USING: cpu.architecture cpu.x86 cpu.x86.assembler.operands
kernel system ;

M: x86 %copy
    2over eq?
    [ 3drop ] [
        [ [ ?spill-slot ] bi@ ] dip 2over [ register? ] both?
        [ copy-register* ] [ copy-memory* ] if
    ] if ;