void adc_conv(void);
/* return 1 if AD is performing a conversion, 0 if done */
-char adc_busy(void) _naked;
+char adc_busy(void) __naked;
/* get value of convertion */
-int adc_read(void) _naked;
+int adc_read(void) __naked;
/* setup conversion channel */
-void adc_setchannel(unsigned char channel) _naked;
+void adc_setchannel(unsigned char channel) __naked;
#endif