From 4990d8b1fc734a4fd37ab75d403100c076bae5cc Mon Sep 17 00:00:00 2001
From: Volker Ruppert <info@vruppert.de>
Date: Fri, 11 Aug 2006 17:34:12 +0000
Subject: [PATCH] - INT 15 AH=88h now returns max. 63M extended memory (Ralf
 Brown's interrupt   list says the limit should be 15M, but real machines are
 reporting more)

---
 rombios.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/rombios.c b/rombios.c
index 86111eb..eda9f26 100644
--- a/rombios.c
+++ b/rombios.c
@@ -3650,9 +3650,10 @@ ASM_END
       regs.u.r8.al = inb_cmos(0x30);
       regs.u.r8.ah = inb_cmos(0x31);
 
-      // limit to 15M
-      if(regs.u.r16.ax > 0x3c00)
-        regs.u.r16.ax = 0x3c00;
+      // According to Ralf Brown's interrupt the limit should be 15M,
+      // but real machines mostly return max. 63M.
+      if(regs.u.r16.ax > 0xffc0)
+        regs.u.r16.ax = 0xffc0;
 
       CLEAR_CF();
 #endif
-- 
2.11.4.GIT