#include“absacc.h”
#define c654_a_cs XBYTE[0x2000]
#define c654_a_dll XBYTE[0x2000]
#define c654_a_dlm XBYTE[0x2001]
#define c654_a_ier XBYTE[0x2001]
#define c654_a_rhr XBYTE[0x2000]
#define c654_a_thr XBYTE[0x2000]
#define c654_a_isr XBYTE[0x2002]
#define c654_a_fcr XBYTE[0x2002]
#define c654_a_lcr XBYTE[0x2003]
#define c654_a_mcr XBYTE[0x2004]
#define c654_a_efr XBYTE[0x2002]
#define c654_a_lsr XBYTE[0x2005]
这种定义指针的方法和我下面写的有什么不同？
unsigned int * c654_a_cs= (unsigned * )0x2000;
unsigned int * c654_a_dll=(unsigned * )0x2000;
unsigned int * c654_a_dlm=(unsigned * )0x2001;
unsigned int * c654_a_ier=(unsigned * )0x2001;
unsigned int * c654_a_rhr=(unsigned * )0x2000;
unsigned int * c654_a_thr=(unsigned * )0x2000;
unsigned int * c654_a_isr=(unsigned * )0x2002;
unsigned int * c654_a_fcr=(unsigned * )0x2002;
unsigned int * c654_a_lcr=(unsigned * )0x2003;
unsigned int * c654_a_mcr=(unsigned * )0x2004;
unsigned int * c654_a_efr=(unsigned * )0x2002;
unsigned int * c654_a_lsr=(unsigned * )0x2005;
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