From: Max Schwarz <max.schwarz@online.de>
Date: Mon, 26 Oct 2015 11:15:30 +0000 (+0100)
Subject: sim_interrupts: fix FIFO move operation
X-Git-Tag: v1.3~4^2
X-Git-Url: https://git.htl-mechatronik.at/public/?a=commitdiff_plain;h=5bc1f43dbedbb3d38fafaff0f60868377756e02f;p=sx%2Fsimavr.git

sim_interrupts: fix FIFO move operation

The variable 'mini' is a FIFO index, not a direct index into the buffer!
Add the current read pointer to fix the operation.

Fixes a regression introduced in 599733f261f94317489c2cc8751fb84fd604e6fa.
---

diff --git a/simavr/sim/sim_interrupts.c b/simavr/sim/sim_interrupts.c
index 0022795..651af3e 100644
--- a/simavr/sim/sim_interrupts.c
+++ b/simavr/sim/sim_interrupts.c
@@ -248,7 +248,7 @@ avr_service_interrupts(
 
 	// now move the one at the front of the fifo in the slot of
 	// the one we service
-	table->pending.buffer[mini % avr_int_pending_fifo_size] = 
+	table->pending.buffer[(table->pending.read + mini) % avr_int_pending_fifo_size] =
 			avr_int_pending_read(&table->pending);
 	avr_raise_irq(avr->interrupts.irq + AVR_INT_IRQ_PENDING,
 			avr_has_pending_interrupts(avr));