char xdata *pointer _at_ postion : absolute illegal specifier

remember that there are two memory spaces to consider for a pointer
here is my definitions, they should make it clear

                                            // pointer in data in
#define U8DI  unsigned char   idata * data  // data       idata
#define U8DX  unsigned char   xdata * data  // data       xdata
#define U8IX  unsigned char   xdata * idata // idata      xdata
#define U8XX  unsigned char   xdata * xdata // xdata      xdata
#define U8IC  unsigned char   code  * idata // idata      code
#define U8DC  unsigned char   code  * data  // data       code
#define U8XC  unsigned char   code  * xdata // xdata      code
#define U8CC  unsigned char   code  * code  // code       code

note; no pointer point to DATA simply because that does not mak sense, there is no overhead from IDATA compared to DATA.

Erik

remember that there are two memory spaces to consider for a pointer
here is my definitions, they should make it clear

                                            // pointer in data in
#define U8DI  unsigned char   idata * data  // data       idata
#define U8DX  unsigned char   xdata * data  // data       xdata
#define U8IX  unsigned char   xdata * idata // idata      xdata
#define U8XX  unsigned char   xdata * xdata // xdata      xdata
#define U8IC  unsigned char   code  * idata // idata      code
#define U8DC  unsigned char   code  * data  // data       code
#define U8XC  unsigned char   code  * xdata // xdata      code
#define U8CC  unsigned char   code  * code  // code       code

note; no pointer point to DATA simply because that does not mak sense, there is no overhead from IDATA compared to DATA.

Erik

I really think that the OP needs to appreciate the basic difference before getting involved in the question of memory spaces and any other Keil specifics.

That is to say, he/she must appreciate that there is a difference between a pointer and an array.