MOV A,#00H DEC A DEC A MOV 18H ,A(18H)=

MOV A,#00H DEC A DEC A MOV 18H ,A(18H)= 单片机程序分析题求解答 MOV A,# 00H DEC A DEC A MOV 18H,A (18H) ＝设（20H）=74H,（21H）=96H执行下列程序段MOV 30H,20HANL 30H,#1FHMOV A,21HSWAP ARL AANL A,#0E0HORL 30H,A （30H）=_______ MOV R2,R7 MOV A,@R2 DEC DPTR CPL 2FH MOV 20H.7,F0 PUSH DPTR MOV PC,#2000H 判断下列指令是否合乎规定说明理由 单片机中的DEC是什么意思A=00H,执行指令DEC A之后…A=…怎么解, MOV A,3DH ; SWAP A ; RRC A ; RRC A ; ANL A,#03H; DEC A ; 请问这汇编转换为C语言应该是怎样? MOV AX 4C9AH MOV BX 75BDA XCHG AH , AL ADD BX, AX MOV CH ,AH MOV CL,BL DEC CX 求AX?BX?AH?CH?CL?BL?解答过程详细一点MOV AX 4C9AH MOV BX 75BDA XCHG AH , AL ADD BX, AX MOV CH ,AH MOV CL,BL DEC CX 求AX?BX?A 谁看的懂这个?麻烦给注释下MAIN:MOV R0,#91H MOV A,@R0 MOV R6,A INC R0 MOV A,@R0 MOV R7,A MOV R4,#00H MOV R5,#55H LCALL Q0ACA MOV R4,#03H MOV R5,#0E8H LCALL Q0ADC MOV A,R7 CJNE A,03H,MAIN MOV A,R6 CJNE A,02H,MAIN MOV R0,#78H MOV A,@R0 MOV R6 以下哪一条指令的写法是错误的（ ）.A.INC DPTR B.DEC A C.MOV R0,#0FEH D.PUSH A od指令下面这几行谁能在后面给我注明一下什么意思吗?00576F80 .55 push ebp00576F81 .8BEC mov ebp,esp00576F83 .B9 06000000 mov ecx,600576F88 > 6A 00 push 000576F8A .6A 00 push 000576F8C .49 dec ecx00576F8D .^ 75 F9 jnz short 00576F8 MOV R0 ,R1 和DEC DPTR 有什么错 may be used unintialized in this function啥意思while(dec>0)a = dec % 2;dec = dec / 2;if(a == 0)c = c + 1;elsed = d + 1;printf( 判断下列指令是否正确,如不正确请指出错误之处,1.MOV AX ,BL2.DEC AX,13.DIV 704.XLAT 5.OUT 88H,BL 1.CMP CX,0000H2 .OUT 21H,AL3.STI4.HLT5.JMP A16.INT 10H7.MOV AX,0120H8.INT 10H9.DEC CX10.MOV AL,20H11.OUT 20H,AL12.CLI13.IRET 1.下列指令中,错误的指令是( ). A.MOV A,@R1 B.MOV 41H,@1.下列指令中,错误的指令是( ).A.MOV A,@R1B.MOV 41H,@R1C.MOV RO,@R1D.MOV 41H,42H Dec.是什么意思 dec是什么意思 dec是什么意思 DEC CX