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          C51的INTRINS.H詳解

          作者: 時間:2016-11-27 來源:網(wǎng)絡(luò) 收藏
          extern void_nop_(void);//空操作,相當(dāng)于8051的NOP指令
          extern bit_testbit_ (bit);//測試并清零位,相當(dāng)于8051的JBC指令
          extern unsigned char _cror_(unsigned char, unsigned char); //字符循環(huán)右移
          extern unsigned int_iror_(unsigned int,unsigned char);//整數(shù)循環(huán)右移
          extern unsigned long _lror_(unsigned long, unsigned char);//長整數(shù)循環(huán)右移
          extern unsigned char _crol_(unsigned char, unsigned char);//字符循環(huán)左移
          extern unsigned int_irol_(unsigned int,unsigned char);//整數(shù)循環(huán)左移
          extern unsigned long _lrol_(unsigned long, unsigned char);//長整數(shù)循環(huán)左移
          extern unsigned char _chkfloat_(float);//測試并返回源點數(shù)狀態(tài)


          關(guān)鍵詞: C51INTRINS

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