#define P_IOA_Data (volatile unsigned int *)0x7000 #define P_IOA_Buffer (volatile unsigned int *)0x7001 #define P_IOA_Dir (volatile unsigned int *)0x7002 #define P_IOA_Attrib (volatile unsigned int *)0x7003 #define P_IOA_Latch (volatile unsigned int *)0x7004 #define P_IOB_Data