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how_to_mix_c_and_asm [2007/04/07 02:47]
stryd_one Added form link for included ASM (not inline ASM)
how_to_mix_c_and_asm [2008/09/29 12:27] (current)
wackazong
Line 4: Line 4:
 You might have to declare some additional variables, but the concept is quite straightforward. You might have to declare some additional variables, but the concept is quite straightforward.
  
 +Do not forget to include the header file of your processor from the SDCC header files, or variables like PRODL will not be defined: e.g. #include <​pic18f4685.h>​
  
 <code c> <code c>
-unsigned char Scale_7bit(unsigned char evnt2, unsigned char min, unsigned char max) +unsigned char Scale_7bit(unsigned char evnt2, unsigned char min, unsigned char max) {
-{+
   // scaled value is (<8-bit random> * ) >> 8   // scaled value is (<8-bit random> * ) >> 8
   PRODL = evnt2 << 1; // 8bit value   PRODL = evnt2 << 1; // 8bit value
how_to_mix_c_and_asm.1175914038.txt.gz · Last modified: 2008/09/10 17:31 (external edit)