大佬們啊，這題目是從50個字節的無序表中查找一個關鍵字“××H”。若找到，將關鍵字所在地址存入R2R3；若找不到，將0000H存入R2R3，我寫的程序是這樣的，為什么運行結果就是不對呢？
ORG 0000H
LJMP MAIN
ORG 0100H
MAIN: MOV 30H,#00H
MOV R1,#16
MOV A, #22
MOV DPTR, #TAB4
LOOP: PUSH ACC
MOVC A, @A+DPTR
CJNE A, 30H, LOOP1
MOV R2, DPH
MOV R3, DPL
DONE: RET
LOOP1: POP ACC
INC DPTR
DJNZ R1, LOOP
MOV R2, #00H
MOV R3, #00H
AJMP DONE
TAB4: DB 01H, 03H, 05H, 10H, 11H, 18H, 09H, 17H, 10H, 20H, 21H, 25H, 32H, 31H, 37H, 43H
END
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