Move keyboard calling code from util.c to boot.c.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
diff --git a/src/boot.c b/src/boot.c
index bbe9155..3542283 100644
--- a/src/boot.c
+++ b/src/boot.c
@@ -1,6 +1,6 @@
 // Code to load disk image and start system boot.
 //
-// Copyright (C) 2008-2010  Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008-2013  Kevin O'Connor <kevin@koconnor.net>
 // Copyright (C) 2002  MandrakeSoft S.A.
 //
 // This file may be distributed under the terms of the GNU LGPLv3 license.
@@ -396,6 +396,48 @@
 
 
 /****************************************************************
+ * Keyboard calls
+ ****************************************************************/
+
+// See if a keystroke is pending in the keyboard buffer.
+static int
+check_for_keystroke(void)
+{
+    struct bregs br;
+    memset(&br, 0, sizeof(br));
+    br.flags = F_IF|F_ZF;
+    br.ah = 1;
+    call16_int(0x16, &br);
+    return !(br.flags & F_ZF);
+}
+
+// Return a keystroke - waiting forever if necessary.
+static int
+get_raw_keystroke(void)
+{
+    struct bregs br;
+    memset(&br, 0, sizeof(br));
+    br.flags = F_IF;
+    call16_int(0x16, &br);
+    return br.ah;
+}
+
+// Read a keystroke - waiting up to 'msec' milliseconds.
+static int
+get_keystroke(int msec)
+{
+    u32 end = irqtimer_calc(msec);
+    for (;;) {
+        if (check_for_keystroke())
+            return get_raw_keystroke();
+        if (irqtimer_check(end))
+            return -1;
+        yield_toirq();
+    }
+}
+
+
+/****************************************************************
  * Boot menu and BCV execution
  ****************************************************************/
 
diff --git a/src/util.c b/src/util.c
index dd7afdf..ee59b13 100644
--- a/src/util.c
+++ b/src/util.c
@@ -233,44 +233,3 @@
     while (end >= buf && *end <= ' ')
         *(end--) = '\0';
 }
-
-/****************************************************************
- * Keyboard calls
- ****************************************************************/
-
-// See if a keystroke is pending in the keyboard buffer.
-static int
-check_for_keystroke(void)
-{
-    struct bregs br;
-    memset(&br, 0, sizeof(br));
-    br.flags = F_IF|F_ZF;
-    br.ah = 1;
-    call16_int(0x16, &br);
-    return !(br.flags & F_ZF);
-}
-
-// Return a keystroke - waiting forever if necessary.
-static int
-get_raw_keystroke(void)
-{
-    struct bregs br;
-    memset(&br, 0, sizeof(br));
-    br.flags = F_IF;
-    call16_int(0x16, &br);
-    return br.ah;
-}
-
-// Read a keystroke - waiting up to 'msec' milliseconds.
-int
-get_keystroke(int msec)
-{
-    u32 end = irqtimer_calc(msec);
-    for (;;) {
-        if (check_for_keystroke())
-            return get_raw_keystroke();
-        if (irqtimer_check(end))
-            return -1;
-        yield_toirq();
-    }
-}
diff --git a/src/util.h b/src/util.h
index 70114a6..4fa0939 100644
--- a/src/util.h
+++ b/src/util.h
@@ -30,7 +30,6 @@
 char *strtcpy(char *dest, const char *src, size_t len);
 char *strchr(const char *s, int c);
 void nullTrailingSpace(char *buf);
-int get_keystroke(int msec);
 
 // stacks.c
 extern u8 ExtraStack[], *StackPos;