摘要: 注:12M晶振,一周期为1us#includemain(){ unsigned int i; i=70; while(i--);}上述程序汇编代码:C:0x0007 EF MOV A,R7C:0x0008 1F DEC R7C:0x0009 AC06 MOV R4,0x06C:0x000B 7001... 阅读全文