From edf625929c33f272dd0e5163bc5422882660e662 Mon Sep 17 00:00:00 2001
From: Daniel Beer <dlbeer@gmail.com>
Date: Tue, 13 Sep 2011 13:36:19 +1200
Subject: [PATCH] Fix immediate-mode addressing with byte instructions.

Immediate mode is implemented using auto-increment register indexing,
but the advance is always 2 for PC-indexed operands.

Bug introduced in 2aed1b90a48cb794641c2a6ff1308c0fcc8904f8.
---
 sim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sim.c b/sim.c
index b775348..18afe3b 100644
--- a/sim.c
+++ b/sim.c
@@ -110,7 +110,7 @@ static int fetch_operand(struct sim_device *dev,
 			return 0;
 		}
 		addr = dev->regs[reg];
-		dev->regs[reg] += is_byte ? 1 : 2;
+		dev->regs[reg] += (is_byte && reg != MSP430_REG_PC) ? 1 : 2;
 		break;
 	}