;;; PUSH / POP 値の交換
MAIN    START
        LD      GR1,A
        LD      GR1,0,GR7
        LD      GR2,1,GR7
        LD      GR3,2,GR7
        LD      GR4,3,GR7
        LD      GR5,4,GR7
        LD      GR6,5,GR7
        LD      GR7,6,GR7
        PUSH    0,GR1
        PUSH    0,GR2
        PUSH    0,GR3
        PUSH    0,GR4
        PUSH    0,GR5
        PUSH    0,GR6
        PUSH    0,GR7
        POP     GR1
        POP     GR2
        POP     GR3
        POP     GR4
        POP     GR5
        POP     GR6
        POP     GR7
        RET
A       DC      1,2,3,4,5,6,7
        END