-#include <pic18fregs.h>
+/*
+ * adcbusy - check whether the AD module is busy
+ *
+ * written by Vangelis Rokas, 2004 <vrokas AT otenet.gr>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <pic18fregs.h>
#include <adc.h>
-char adc_busy(void)
+char adc_busy(void) __naked
{
- return (ADCON0bits.GO == 1);
+#if 0
+ return (ADCON0bits.GO);
+#else
+ __asm
+ movlw 0x00
+#if defined(__SDCC_ADC_STYLE242)
+ btfsc _ADCON0bits, 2
+#elif defined(__SDCC_ADC_STYLE1220) || defined(__SDCC_ADC_STYLE2220)
+ btfsc _ADCON0bits, 1
+#else /* unsupported ADC style */
+#error Unsupported ADC style.
+#endif
+ addlw 0x01
+ return
+ __endasm;
+#endif
}
+