POP - 워드를 스택으로부터 뽑아낸다

        사용:  POP     dest
        수정되는 플래그: 없음
        
        현재 스택 탑(SS:SP)에 있는 워드를 데스티네이션으로 전송한후, 
        새로운 스택 탑의 포인트에 SP를 2씩 늘려준다. CS 는 불가능한
        데스티네이션이다.

                                 클럭                   바이트
        오퍼랜드         808x  286   386   486          용량
        reg16             8     5     4     4             1

        reg32             4     -     -     4             1
        segreg            8     5     7     3             1
        mem16           17+EA   5     5     6            2-4
        mem32             5     -     -     6            2-4

        8F /0 POP m16 Pop top of stack into m16; increment stack pointer

        8F /0 POP m32 Pop top of stack into m32; increment stack pointer
        58+ rw POP r16 Pop top of stack into r16; increment stack pointer
        58+ rd POP r32 Pop top of stack into r32; increment stack pointer
        1F POP DS Pop top of stack into DS; increment stack pointer
        07 POP ES Pop top of stack into ES; increment stack pointer
        17 POP SS Pop top of stack into SS; increment stack pointer

        0F A1 POP FS Pop top of stack into FS; increment stack pointer
        0F A9 POP GS Pop top of stack into GS; increment stack pointer