cog.h

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#ifndef PROPELLER_COG_H_
#define PROPELLER_COG_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* for variables that should go in cog memory */
#define _COGMEM __attribute__((cogmem))
 
/* for functions that use cog "call/ret" calling (nonrecursive) */
#define _NATIVE __attribute__((native))
 
/* for functions with no epilogue or prologue: these should never return */
#define _NAKED  __attribute__((naked))
 
#define _FCACHE __attribute__((fcache))
 
/* useful variables */
 
#ifdef __PROPELLER2__
extern _COGMEM volatile unsigned int _PINA __asm__("PINA");
extern _COGMEM volatile unsigned int _PINB __asm__("PINB");
extern _COGMEM volatile unsigned int _PINC __asm__("PINC");
extern _COGMEM volatile unsigned int _PIND __asm__("PIND");
extern _COGMEM volatile unsigned int _DIRA __asm__("DIRA");
extern _COGMEM volatile unsigned int _DIRB __asm__("DIRB");
extern _COGMEM volatile unsigned int _DIRC __asm__("DIRC");
extern _COGMEM volatile unsigned int _DIRD __asm__("DIRD");
#else
extern _COGMEM volatile unsigned int _PAR __asm__("PAR");
extern _COGMEM volatile unsigned int _CNT __asm__("CNT");
extern _COGMEM volatile unsigned int _INA __asm__("INA");
extern _COGMEM volatile unsigned int _INB __asm__("INB");
extern _COGMEM volatile unsigned int _OUTA __asm__("OUTA");
extern _COGMEM volatile unsigned int _OUTB __asm__("OUTB");
extern _COGMEM volatile unsigned int _DIRA __asm__("DIRA");
extern _COGMEM volatile unsigned int _DIRB __asm__("DIRB");
extern _COGMEM volatile unsigned int _CTRA __asm__("CTRA");
extern _COGMEM volatile unsigned int _CTRB __asm__("CTRB");
extern _COGMEM volatile unsigned int _FRQA __asm__("FRQA");
extern _COGMEM volatile unsigned int _FRQB __asm__("FRQB");
extern _COGMEM volatile unsigned int _PHSA __asm__("PHSA");
extern _COGMEM volatile unsigned int _PHSB __asm__("PHSB");
extern _COGMEM volatile unsigned int _VCFG __asm__("VCFG");
extern _COGMEM volatile unsigned int _VSCL __asm__("VSCL");
#endif
 
/* boot parameters */
 
extern unsigned int _clkfreq; /* in the spin boot code */
 
#define _CLKFREQ _clkfreq
 
extern unsigned char _clkmode; /* in the spin boot code */
 
#define _CLKMODE _clkmode
 
#ifdef __cplusplus
}
#endif
 
#endif