try to detect video mode changes

1 files changed, 3 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index 6cc74da..05b4e36 100644
--- a/utils.h
+++ b/utils.h
@@ -14,6 +14,9 @@ static inline void breakpoint(void);
 static inline __segment get_cs(void);
 #pragma aux get_cs = "mov ax, cs" value [ax] modify exact [];
 
+static inline __segment get_ds(void);
+#pragma aux get_ds = "mov ax, ds" value [ax] modify exact [];
+
 /** Map x linearly from range [0, srcmax] to [0, dstmax].
  *  Equivalent of (x * dstmax) / srcmax but with 32-bit unsigned precision. */
 static unsigned scaleu(unsigned x, unsigned srcmax, unsigned dstmax);