From dc8d237126455a293c8d2302bd732fcd83068c86 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Sat, 17 Aug 2024 19:46:29 +0200
Subject: [PATCH] S3 ViRGE: Force bit 2 of CRTC register 33h to be set when
 read, fixes Windows 95 GX2 lock-ups.

---
 src/video/vid_s3_virge.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/video/vid_s3_virge.c b/src/video/vid_s3_virge.c
index 24f325c49..286e459e7 100644
--- a/src/video/vid_s3_virge.c
+++ b/src/video/vid_s3_virge.c
@@ -720,6 +720,9 @@ s3_virge_in(uint16_t addr, void *priv) {
                 case 0x31:
                     ret = (svga->crtc[0x31] & 0xcf) | ((virge->ma_ext & 3) << 4);
                     break;
+                case 0x33:
+                    ret = (svga->crtc[0x33] | 0x04);
+                    break;
                 case 0x35:
                     ret = (svga->crtc[0x35] & 0xf0) | (virge->bank & 0xf);
                     break;