How do you call an assembly function from C program?

Question

I am very new to Microcontroller programming particularly PIC18F87J11, and I am using MPLAB C18 compiler. I was reading the datasheet for various topics such as saving to me

Answer 1

There's a way to use asm in C language, depending on the compiler you use (the capacity to use asm in C is not part of the standard). Each compiler doesn't use the same syntax. With MPLAB C18 it's something like this:

void main()
{
     _asm
                movlw 0x57
                movwf PORTB
    _endasm
}

The example above is from this link, which will explain you how to use asm in C with MPLAB C18.