From 8767bb5894fc01d1b3ec59654934cbaf4df433fc Mon Sep 17 00:00:00 2001
From: TC1995 <mariogplayer90@gmail.com>
Date: Tue, 19 Jul 2022 17:25:17 +0200
Subject: [PATCH] Made reg 0x53 (read only) default temp val to 0x70 to satisfy
 xgaaidos.sys's detection. Apparently MCA Audio cards always want auto-init
 enabled.

---
 src/dma.c           | 4 ++--
 src/video/vid_xga.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/dma.c b/src/dma.c
index a995660a5..6ab9a12ad 100644
--- a/src/dma.c
+++ b/src/dma.c
@@ -1448,7 +1448,7 @@ dma_channel_read(int channel)
 		dma_sg_next_addr(dma_c);
 	else {
 		tc = 1;
-		if (dma_c->mode & 0x10) { /*Auto-init*/
+		if ((dma_c->mode & 0x10) || dma_ps2.is_ps2) { /*Auto-init*/
 			dma_c->cc = dma_c->cb;
 			dma_c->ac = dma_c->ab;
 		} else
@@ -1536,7 +1536,7 @@ dma_channel_write(int channel, uint16_t val)
 	if (dma_advanced && (dma_c->sg_status & 1) && !(dma_c->sg_status & 6))
 		dma_sg_next_addr(dma_c);
 	else {
-		if (dma_c->mode & 0x10) { /*Auto-init*/
+		if ((dma_c->mode & 0x10) || dma_ps2.is_ps2) { /*Auto-init*/
 			dma_c->cc = dma_c->cb;
 			dma_c->ac = dma_c->ab;
 		} else
diff --git a/src/video/vid_xga.c b/src/video/vid_xga.c
index a7ee05ffd..2941d9cb2 100644
--- a/src/video/vid_xga.c
+++ b/src/video/vid_xga.c
@@ -577,7 +577,7 @@ xga_ext_inb(uint16_t addr, void *p)
                     ret = 0x0b;
                     break;
                 case 0x53:
-                    ret = 0xb0;
+                    ret = 0x70;
                     break;
                 case 0x54:
                     ret = xga->clk_sel_1;