From 244038b84cf8ebd38814b53cf15f3461c6d0c34f Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Sun, 3 Mar 2024 21:24:00 +0100
Subject: [PATCH] LOCK: It is sometimes legal when cpu_mod == 3, fixes hangs
 with Compaq Portable III 386 TEST.

---
 src/cpu/386_common.c   | 2 +-
 src/cpu/x86_ops_misc.h | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/cpu/386_common.c b/src/cpu/386_common.c
index 5c1b95e0f..f3926f170 100644
--- a/src/cpu/386_common.c
+++ b/src/cpu/386_common.c
@@ -433,7 +433,7 @@ is_lock_legal(uint32_t fetchdat)
 
     legal = lock_legal[fetch_dat.b[0]];
     if (legal == 1)
-        legal = ((fetch_dat.b[1] >> 6) != 0x03);    /* reg is illegal */
+        legal = 1; // ((fetch_dat.b[1] >> 6) != 0x03);    /* reg is illegal */
     else if (legal == 2) {
         legal = lock_legal_0f[fetch_dat.b[1]];
         if (legal == 1)
diff --git a/src/cpu/x86_ops_misc.h b/src/cpu/x86_ops_misc.h
index 519bdbe3c..073327c9c 100644
--- a/src/cpu/x86_ops_misc.h
+++ b/src/cpu/x86_ops_misc.h
@@ -738,9 +738,6 @@ opLOCK(uint32_t fetchdat)
 
     legal = is_lock_legal(fetchdat);
 
-    if (legal == 4)
-        pclog("PREFIX: F0 %08X\n", fetchdat);
-
     ILLEGAL_ON(legal == 0);
 
     CLOCK_CYCLES(4);