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what is command " MOVX @Ri, A" in C51 ?

I have a question ,
please show me command " MOVX @RI,A" in C51 ! I can't to find , please help me !
thanks very much !

Parents

0 Dan Henry over 22 years ago

stmt level    source

   1          void movx(unsigned char pdata *p, unsigned char b)
   2          {
   3   1          *p = b;
   4   1      }

ASSEMBLY LISTING OF GENERATED OBJECT CODE

             ; FUNCTION _movx (BEGIN)
                                           ; SOURCE LINE # 1
;---- Variable 'b' assigned to Register 'R5' ----
;---- Variable 'p' assigned to Register 'R0' ----
0000 A807              MOV     R0,AR7
                                           ; SOURCE LINE # 2
                                           ; SOURCE LINE # 3
0002 ED                MOV     A,R5
0003 F2                MOVX    @R0,A
                                           ; SOURCE LINE # 4
0004 22                RET
             ; FUNCTION _movx (END)

Reply

0 Dan Henry over 22 years ago

stmt level    source

   1          void movx(unsigned char pdata *p, unsigned char b)
   2          {
   3   1          *p = b;
   4   1      }

ASSEMBLY LISTING OF GENERATED OBJECT CODE

             ; FUNCTION _movx (BEGIN)
                                           ; SOURCE LINE # 1
;---- Variable 'b' assigned to Register 'R5' ----
;---- Variable 'p' assigned to Register 'R0' ----
0000 A807              MOV     R0,AR7
                                           ; SOURCE LINE # 2
                                           ; SOURCE LINE # 3
0002 ED                MOV     A,R5
0003 F2                MOVX    @R0,A
                                           ; SOURCE LINE # 4
0004 22                RET
             ; FUNCTION _movx (END)

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