serial.h

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#ifndef _SYS_SERIAL_H
#define _SYS_SERIAL_H
 
#include <compiler.h>
 
int _serial_tx(int c, unsigned int txmask, unsigned int bitcycles);
 
int _serial_putchar(int c);
 
#define _DEFAULT_SERIAL_PUTCHAR \
    _WEAK int putchar(int c) { return _serial_putchar(c); }
 
 
#endif