n-bit-version-of ( register n -- register' )
CPU x86 registers and memory operands

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Vocabulary
cpu.x86.assembler.operands

Inputs

register	a register
n	an integer

Outputs

register'

a register

Word description
Returns a less wide version of the given register.

Definition

USING: assocs cpu.x86.assembler.syntax kernel layouts namespaces
sequences words ;

IN: cpu.x86.assembler.operands

: n-bit-version-of ( register n -- register' )
    [ "register" word-prop ] dip registers get at nth
    dup extended-8-bit-register? cell 4 = and [ drop f ] when ;