C51汇编 10个无符号数排序

以下是C51汇编实现10个无符号数排序的代码：

ORG 0H
MOV DPTR, #DATA
MOV R0, #10
MOV R1, #09
LOOP1:
    MOV R2, #00
    MOV R3, R1
LOOP2:
    MOVX A, @DPTR
    MOV R4, A
    INC DPTR
    MOVX A, @DPTR
    CJNE A, R4, ELSE
    SJMP SKIP
ELSE:
    MOV A, R4
    MOVX @DPTR, A
    DEC DPTR
    MOV A, R3
    MOVX @DPTR, A
    INC DPTR
    INC R2
SKIP:
    INC DPTR
    DJNZ R3, LOOP2
    DJNZ R1, LOOP1
    RET
DATA:
DB 23H, 45H, 12H, 56H, 78H, 34H, 90H, 87H, 65H, 43H
END