Update ADC data register before IRQ calls

buserror · Nov 20, 2024 · 71c616d · 71c616d
1 parent 33566f7
commit 71c616d
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/simavr/sim/avr_adc.c b/simavr/sim/avr_adc.c
@@ -31,16 +31,16 @@ avr_adc_int_raise(
 {
 	avr_adc_t * p = (avr_adc_t *)param;
 	if (avr_regbit_get(avr, p->aden)) {
-		// if the interrupts are not used, still raised the UDRE and TXC flag
-		avr_raise_interrupt(avr, &p->adc);
-		avr_regbit_clear(avr, p->adsc);
-		if( p->adts_mode == avr_adts_free_running )
-			avr_raise_irq(p->io.irq + ADC_IRQ_IN_TRIGGER, 1);
 		if (!p->read_status) {
 			/* Update I/O registers. */
 			avr_core_watch_write(avr, p->r_adcl, p->result & 0xff);
 			avr_core_watch_write(avr, p->r_adch, p->result >> 8);
 		}
+		// if the interrupts are not used, still raised the UDRE and TXC flag
+		avr_raise_interrupt(avr, &p->adc);
+		avr_regbit_clear(avr, p->adsc);
+		if( p->adts_mode == avr_adts_free_running )
+			avr_raise_irq(p->io.irq + ADC_IRQ_IN_TRIGGER, 1);
 	}
 	return 0;
 }