diff options
Diffstat (limited to 'reference/C/CONTRIB/SNIP/faskbhit.c')
-rwxr-xr-x | reference/C/CONTRIB/SNIP/faskbhit.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/SNIP/faskbhit.c b/reference/C/CONTRIB/SNIP/faskbhit.c new file mode 100755 index 0000000..5c14022 --- /dev/null +++ b/reference/C/CONTRIB/SNIP/faskbhit.c @@ -0,0 +1,28 @@ +/*
+** by David Goodenough & Bob Stout
+*/
+
+#ifdef __TURBOC__
+ #define FAR far
+#else
+ #define FAR _far
+#endif
+
+#ifndef MK_FP
+ #define MK_FP(seg,offset) \
+ ((void FAR *)(((unsigned long)(seg)<<16) | (unsigned)(offset)))
+#endif
+
+#define biosseg 0x40
+
+int fast_kbhit(void)
+{
+ return *((unsigned FAR *)MK_FP(biosseg, 0x1a)) -
+ *((unsigned FAR *)MK_FP(biosseg, 0x1c));
+}
+
+void fast_kbflush(void)
+{
+ *((unsigned FAR *)MK_FP(biosseg, 0x1a)) =
+ *((unsigned FAR *)MK_FP(biosseg, 0x1c));
+}
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