Can't access addresses 0x00 - 0xFF of memory using XBYTE

I am using the XBYTE macro to access a memory mapped device. The chip select is being handled via another port (P1) to allow the full 64K of addresses to be axcessed. When I read data from the memory...
Can't access addresses 0x00 - 0xFF of memory using XBYTE

I am using the XBYTE macro to access a memory mapped device. The chip select is being handled via another port (P1) to allow the full 64K of addresses to be axcessed. When I read data from the memory...
how to declare a xbyte address in the function's parameter?

I has defined some xbyte macro,as belows: #define PA XBYTE[0XF100] #define PB XBYTE[0XF200]..... now,i want pass the PA and PB as a parameter of a function, how to declare them in the function...
how to declare a xbyte address in the function's parameter?

I has defined some xbyte macro,as belows: #define PA XBYTE[0XF100] #define PB XBYTE[0XF200]..... now,i want pass the PA and PB as a parameter of a function, how to declare them in the function...
Questions about XBYTE

Hi I'm new to Keil so please bear with me. for(nddX=0;nddX<imgDownloaded.bWidth;nddX++) XBYTE[HIGHEST_BYTE|START_1BYTE]=bImage[nPnt+nddX]; where HIGHEST_BYTE is defined as 0x30 and START_1BYTE...