From 460b19aaf4b1ba1f605a032c266488a20b9fdb84 Mon Sep 17 00:00:00 2001
From: Themis Demetriades <td1223@ic.ac.uk>
Date: Thu, 6 Jun 2024 13:19:36 +0100
Subject: [PATCH] Fix ROR shift logic

---
 src/execute.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/execute.c b/src/execute.c
index fc436af..7ad18da 100644
--- a/src/execute.c
+++ b/src/execute.c
@@ -225,7 +225,7 @@ static void executeDPRegister(Machine *state, a64inst_instruction *inst) {
                     if (arithmLogicData->type != a64inst_DPR_LOGIC) {
                         fprintf(stderr, "Attempting to perform ROR shift on non-logic register data processing instruction!\n");
                     }
-                    src2Val = truncateValue(src2Val >> shiftAmount | src2Val << (getMSBPos(regType) - shiftAmount), regType);
+                    src2Val = truncateValue(src2Val >> shiftAmount | src2Val << (getMSBPos(regType) - shiftAmount + 1), regType);
                     break;
 
                 default: