coldfire/include/debugtraps.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
#ifndef DBUGTRAP_H
#define DBUGTRAP_H
 
void SetAddressWrittenTrap(uint32_t addr);
void SetAddressWriteRangeTrap(uint32_t startaddr, uint32_t endaddr);
void SetAddressReadTrap(uint32_t addr);
void SetAddressReadRangeTrap(uint32_t startaddr, uint32_t endaddr);
 
/* Call this macro to monitor writes to a single variable */
/* You may only monitor ONE VARIABLE                      */
/* You may not write to this variable after making this call unless */
/* You first use the BEFORE_WRITING_MONITORED_VAR macro */
#define MONITOR_VAR_WRITES(x) SetAddressWrittenTrap((uint32_t)&x);
 
/* use this before writing to a monitored var */
#define BEFORE_WRITING_MONITORED_VAR(x) \
    asm(" move.w #0x2700,%sr ");        \
    SetAddressWrittenTrap(0);
 
/* Use this after writing to a monitored var */
#define AFTER_WRITING_MONITORED_VAR(x)   \
    asm(" nop");                         \
    SetAddressWrittenTrap((uint32_t)&x); \
    asm(" move.w (OSISRLevel),%d0 ");    \
    asm(" move.w %d0,%sr ");
 
#endif