用汇编语言编程设计一个8051双机通信系统,将A机的片内RAM中30H~3FH的...答:ORG 0000H LJMP MAIN ORG 0030H MAIN:MOV TMOD,#20H MOV TH1,#0FDH MOV TL1,#0FDH SETB TR1 MOV SCON,#50H MOV R0,#30H LP:MOV A,@R0 MOV SBUF,A JNB TI,CLR TI INC R0 CJNE R0,#3FH,LP SJMP END B:ORG 0000H LJMP MAIN ORG 0030H MAIN:MOV TMOD,#20H MOV TH1,#0FDH M...