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Re: is a bug ?
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版主
 
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實際測試後結果
A= 0x55;
data1 等於 data2 不等於 data3 有點奇怪，已發e-mail 問該部門中...謝謝您的告知！
發表於: 2006/6/26 16:23
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is a bug ?
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新會員
 
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dear sir:
以下program 用c18 compiler run 為何data1與data2 不相同 //mcc18.30 /** I N C L U D E S **********************************************************/ #include <p18cxxx.h> typedef unsigned long UI32; void main(void) { UI32 data1, data2; UI32 A,B,C,D; A= 55; B= 0xaa; C= 0xcc; D= 33; D<<=24; C<<=16; B<<=8; data1=A|B|C|D; A= 55; B= 0xaa; C= 0xcc; D= 33; D<<=24; C<<=16; B<<=8; data2=A|(B<<=8)|(C<<=16)|(D<<=24); // why data2 != data1 while(1); }//end main
發表於: 2006/6/24 9:28
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