Even if you don't use it directly, 'C' code is not hard to read.

Look at the 'C' code - it tells you quite plainly what you need to do!

Example:

//----------------------------------------------------------------------------------
void s_transstart(void)
//----------------------------------------------------------------------------------
// generates a transmission start
//        _____         ________
// DATA:       |_______|
//           ___     ___
// SCK : ___|   |___|   |______
{
   DATA=1; 
   SCK=0; //Initial state
   _nop_();
   SCK=1;
   _nop_();
   DATA=0;
   _nop_();
   SCK=0;
   _nop_();_nop_();_nop_();
   SCK=1;
   _nop_();
   DATA=1;
   _nop_();
   SCK=0;
}

_nop_() in Keil C51 is just NOP in assembler;
assignment in C is just a MOV in assembler.

It really isn't that hard!


And, as Erik says, you can always just use the compiler to turn it into assembly!