combining c51 and assembly in a single source code

[Abhishek Saurabh]

what is the alternative in c51 for the function getkey() in assembly.

 

[IanP]

Try this sequence:

JNB RI,$ ;Wait for the 8051 to set the RI flag
MOV A,SBUF ;Read the character from the serial port

Regards,
IanP

 

[Davood Amerion]

This is C source code for getkey for C51

#include <reg51.h>

char _getkey () {
char c;

while (!RI);
c = SBUF;
RI = 0;
return (c);
}

you can comile it and generate its assemly source code
or translate it to assembly by yourself line by line!