compling error query

hi Dis is my program..and its showing error saying 'IDATA' segment too large...does it depend on the version of kiel used ?

#include <REG52.H>
#define ST_CNTRL P1

sfr ldata = 0x80;
sbit rs = P3^7;
sbit rw = P3^6;
sbit en = P3^5;
sbit busy = P0^7;

//--------------Funtion declaration
void MSDelay (unsigned int);                    //Delay
void lcdcmd (unsigned char value);
void lcddata (unsigned char value);
void lcdready ();
void stepper(unsigned char k);
void antistepper(unsigned char k) ;


void delay(void);
unsigned char getkey ();


unsigned char j,key=0,data1,data2,data0,count ;
unsigned char idata msg0[17] =  {"R 642"};
unsigned char idata msg1[17] =  {"R 2986"};
unsigned char idata msg2[17] =  {"R 21440"};
unsigned char idata msg3[17] =  {"R "};
unsigned char idata msg4[17] =  {"R "};
unsigned char idata msg5[17] =  {"R "};
unsigned char idata msg6[17] =  {"R "};
unsigned char idata msg7[17] =  {"R "};
unsigned char idata msg8[17] =  {"R "};
unsigned char idata msg9[17] =  {"R "};
unsigned char idata msg10[17] =  {"R "};
unsigned char idata msg11[17] =  {"R "};
unsigned char idata msg12[17] =  {"R "};
unsigned char idata msg13[17] =  {"R "};
unsigned char idata msg14[17] =  {"R "};
unsigned char idata msg15[17] =  {"R "};
unsigned char idata msg16[17] =  {"R "};
unsigned char idata msg17[17] =  {"R "};
unsigned char idata msg18[17] =  {"R "};
unsigned char idata msg19[17] =  {"R "};
unsigned char idata msg20[17] =  {"R "};
unsigned char idata msg21[17] =  {"R "};
unsigned char idata msg22[17] =  {"R "};
unsigned char idata msg23[17] =  {"R "};
unsigned char idata msg24[17] =  {"R "};
unsigned char idata msg25[17] =  {"R "};
unsigned char idata msg26[17] =  {"R "};
unsigned char idata msg27[17] =  {"R "};
unsigned char idata msg28[17] =  {"R "};
unsigned char idata msg29[17] =  {"R "};
unsigned char idata msg30[17] =  {"R "};
unsigned char idata msg31[17] =  {"R "};
unsigned char idata msg32[17] =  {"R "};
unsigned char idata msg33[17] =  {"R "};
unsigned char idata msg34[17] =  {"R "};
unsigned char idata msg35[17] =  {"R "};
unsigned char idata msg36[17] =  {"R "};
unsigned char idata msg37[17] =  {"R "};
unsigned char idata msg38[17] =  {"R "};
unsigned char idata msg39[17] =  {"R "};
unsigned char idata msg40[17] =  {"R "};
unsigned char idata msg41[17] =  {"R "};
unsigned char idata msg42[17] =  {"R "};
unsigned char idata msg43[17] =  {"R "};
unsigned char idata msg44[17] =  {"R "};
unsigned char idata msg45[17] =  {"R "};
unsigned char idata msg46[17] =  {"R "};
unsigned char idata msg47[17] =  {"R "};
unsigned char idata msg48[17] =  {"R "};
unsigned char idata msg49[17] =  {"R "};
unsigned char idata msg50[17] =  {"R "};
unsigned char idata msg51[17] =  {"R "};
unsigned char idata msg52[17] =  {"R "};
unsigned char idata msg53[17] =  {"R "};
unsigned char idata msg54[17] =  {"R "};
unsigned char idata msg55[17] =  {"R "};
unsigned char idata msg56[17] =  {"R "};
unsigned char idata msg57[17] =  {"R "};
unsigned char idata msg58[17] =  {"R "};
unsigned char idata msg59[17] =  {"R "};
unsigned char idata msg60[17] =  {"R "};
unsigned char idata msg61[17] =  {"R "};
unsigned char idata msg62[17] =  {"R "};
unsigned char idata msg633[17] =  {"R "};
unsigned char idata msg64[17] =  {"R "};
unsigned char idata msg65[17] =  {"R "};
unsigned char idata msg66[17] =  {"R "};
unsigned char idata msg67[17] =  {"R "};
unsigned char idata msg68[17] =  {"R "};
unsigned char idata msg69[17] =  {"R "};
unsigned char idata msg70[17] =  {"R "};
unsigned char idata msg71[17] =  {"R "};
unsigned char idata msg72[17] =  {"R "};
unsigned char idata msg73[17] =  {"R "};
unsigned char idata msg74[17] =  {"R "};
unsigned char idata msg75[17] =  {"R "};
unsigned char idata msg76[17] =  {"R "};
unsigned char idata msg77[17] =  {"R "};
unsigned char idata msg78[17] =  {"R "};
unsigned char idata msg79[17] =  {"R "};
unsigned char idata msg80[17] =  {"R "};
unsigned char idata msg81[17] =  {"R "};
unsigned char idata msg82[17] =  {"R "};
unsigned char idata msg83[17] =  {"R "};
unsigned char idata msg84[17] =  {"R "};
unsigned char idata msg85[17] =  {"R "};
unsigned char idata msg86[17] =  {"R "};
unsigned char idata msg87[17] =  {"R "};
unsigned char idata msg88[17] =  {"R "};
unsigned char idata msg89[17] =  {"POT RESET"};
unsigned char idata keypad[4][4]= {     '1','2','3','/',
                                                            '4','5','6','*',
                                                                '7','8','9','-',
                                                                'Z','0','X','+',};