indirect_addr.dt

台湾义隆（EM78P222N）,DATASHEET.

;Defined Registers
R0       == 0X0
R1       == 0X1
R2       == 0X2
R3       == 0X3
R4       == 0X4         
          ORG     0X0
          NOP
          JMP     RESET
          ;        
          ORG     0X10
RESET:
          NOP
          CALL    CLEAR_222_SRAM    ;Clear SRAM
          NOP
MAIN:
          NOP
          JMP     $
;;;            
CLEAR_222_SRAM:
          MOV     A, @0X10
          MOV     R4, A             ; Initial SRAM
SRAM_LOOP:
          CLR     R0
          INC     R4
          MOV     A, @0X3F
          AND     A, R4
          JBS     R3, 2
          JMP     SRAM_LOOP
          INC     R1
          BS      R4, 5
          MOV     A, @0X3
          AND     A, R1
          JBS     R3, 2
          JMP     SRAM_LOOP
          RET
          ;
          END