can't read sbuf on debug

Hi, how can I read SBUF while debugging? R_serial () interrupt 4 { if(RI) { serialR = SBUF; RI=0; CompDataRx[count]=serialR; count++; } else TI = 0; } when I put any value in SBUF...
can't read sbuf on debug

Hi, how can I read SBUF while debugging? R_serial () interrupt 4 { if(RI) { serialR = SBUF; RI=0; CompDataRx[count]=serialR; count++; } else TI = 0; } when I put any value in SBUF...
I can't read the SBUF. The local variable don't receive the value of the SBUF. Thank you very much f

void getSBUF() interrupt 4 using 1 { char temp = 1; temp = SBUF; RI = 0; }
I can't read the SBUF. The local variable don't receive the value of the SBUF. Thank you very much f

void getSBUF() interrupt 4 using 1 { char temp = 1; temp = SBUF; RI = 0; }
reading Sbuf

Hello, in my project work I want to read serially received data continuously and compare it with stored ID in MCU I am using 8051. If the ID match then Green LED will glow, for ID mismatch Orange LED...