复习题

180C51CPURAMROM48I/O280C514380C51I/O8051I/OP0P1P2P3832I/OI/O80C51I/OP0P2/P3P0P284I/OP0p2P0P08P088P0ALE8,8P28P2P2P0P2I/OP1I/P3I/OROMPSENRAMRDWRROMRAMI/O5A=7AHR0=30H30H=A6HPSW=81H1XCHA,R0A=30HR0=7AH(2)XCHA,30H30H=7AH,(A)=A6H(3)XCHA,@R0(A)=A6H,(30H)=7AH(4)XCHDA,@R0(A)=76H,(30H)=AAH(5)SWAPA(A)=A7H(6)ADDA,R0(A)=AAH(7)ADDA,30H(A)=20H(8)ADDA,#30H(A)=AAH(9)ADDCA,30H(A)=21H(10)SUBBA,30H(A)=D3H,CY=1(11)SUBBA,#30H(A)=49H,CY=0(12)DAA(A)=E0H(13)RLA(A)=F4H(14)RLCA(A)=F5H(15)CJNEA,#30H,00HPC+3+00(16)CJNEA,30H,00HPC+3+00H23672MOVAR2MOVR1A3MOVAR3MOVR0AMOV@R020H(6)MOVXA,@DPTRMOVR2,A(7)MOVA,R1XCHA,R2MOVR1,A7A=83HR0=17H17H=34HA=ANLA,#17HORL17H,AXRLA,@R0CPLAA=CBH8SP=26HPC=2346HLABEL3466LCALLLABELPCSP+1SP+1/1664⎟⎠⎞⎜⎝⎛−×25321123228fosc=9600fosc=5.529600MHZ1380C51/C000HDFFFHBFFCHBFFFH7FFFHzzzzzzzzzzzzzzzzzzzzzzz