From c2496f140417f79bfeb00e3b93880c9873cb4796 Mon Sep 17 00:00:00 2001
From: Jonathan Campbell <jonathan@castus.tv>
Date: Mon, 22 Nov 2021 08:22:45 -0800
Subject: [PATCH] SYSENTER/SYSEXIT must use continue, not break, to avoid the
 SAVEIP that would set the instruction pointer back to just after SYSENTER. I
 thought it seemed weird that Linux would execute SYSENTER just to then
 execute INT 80h

---
 src/cpu/core_normal/prefix_0f.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/cpu/core_normal/prefix_0f.h b/src/cpu/core_normal/prefix_0f.h
index a34f98dea..1f485cbf6 100644
--- a/src/cpu/core_normal/prefix_0f.h
+++ b/src/cpu/core_normal/prefix_0f.h
@@ -262,13 +262,13 @@
 			if (CPU_ArchitectureType<CPU_ARCHTYPE_PENTIUMII) goto illegal_opcode;
 			if (!CPU_SYSENTER()) goto illegal_opcode;
 		}
-		break;
+		continue;
 	CASE_0F_B(0x35)												/* SYSEXIT */
 		{
 			if (CPU_ArchitectureType<CPU_ARCHTYPE_PENTIUMII) goto illegal_opcode;
 			if (!CPU_SYSEXIT()) goto illegal_opcode;
 		}
-		break;
+		continue;
 
 	// Pentium Pro Conditional Moves
 	CASE_0F_W(0x40)												/* CMOVO */