From 1608c84d724612383d765cf1d5a4bab8714f150b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Herm=C3=A8s=20B=C3=A9lusca-Ma=C3=AFto?=
 <hermes.belusca-maito@reactos.org>
Date: Sat, 25 Jan 2014 22:29:54 +0000
Subject: [PATCH] [NTVDM]: Implement a basic BIOS Wait interrupt INT 15h,
 AH=86h.

svn path=/branches/ntvdm/; revision=61821
---
 subsystems/ntvdm/bios/bios.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/subsystems/ntvdm/bios/bios.c b/subsystems/ntvdm/bios/bios.c
index cad2c6c19f7..8eca3d8228a 100644
--- a/subsystems/ntvdm/bios/bios.c
+++ b/subsystems/ntvdm/bios/bios.c
@@ -49,6 +49,22 @@ static VOID WINAPI BiosMiscService(LPWORD Stack)
 {
     switch (getAH())
     {
+        /* Wait */
+        case 0x86:
+        {
+            /*
+             * Interval in microseconds CX:DX
+             * See Ralf Brown: http://www.ctyme.com/intr/rb-1525.htm
+             * for more information.
+             */
+            Sleep(MAKELONG(getDX(), getCX()));
+
+            /* Clear CF */
+            Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
+
+            break;
+        }
+
         /* Copy Extended Memory */
         case 0x87:
         {