diff --git a/doc/geos.sgml b/doc/geos.sgml
index b1ec523a7..acfb15654 100644
--- a/doc/geos.sgml
+++ b/doc/geos.sgml
@@ -6,7 +6,7 @@
 
 <title>GEOSLib docs
 <author>Maciej Witkowiak, <htmlurl url="mailto:ytm@elysium.pl" name="ytm@elysium.pl">
-<date>v1.5, 26.12.1999, 2000, 2001, 2002, 2003
+<date>v1.5, 26.12.1999, 2000, 2001, 2002, 2003, 2005
 <abstract>
 This is the documentation of cc65's GEOSLib, but information contained here may be also
 useful for writing GEOS applications in general.
@@ -53,6 +53,8 @@ changed between <tt/tgi_init/ and <tt/tgi_done/.
 It is safe to use these standard includes and their contents:
 <tt/assert.h, conio.h, dio.h, errno.h, em.h, geos.h, joystick.h, modload.h, mouse.h, stdlib.h, string.h, tgi.h, time.h/
 <p>
+For <tt/time.h/ functions <tt/systime()/ and <tt/clock/ note that the resolution is one second.
+<p>
 It was not tested enough, but functions from these includes might work under GEOS:
 <tt/rs232.h, zlib.h/
 <p>
diff --git a/include/geos.h b/include/geos.h
index f70a88b6e..9c44bbdb8 100644
--- a/include/geos.h
+++ b/include/geos.h
@@ -2,7 +2,7 @@
    Supreme GEOS header file
    includes all other headers
 
-   Maciej 'YTM/Alliance' Witkowiak, 27.10.1999
+   Maciej 'YTM/Elysium' Witkowiak, 27.10.1999
 */
 
 
@@ -67,10 +67,41 @@
 #include <geos/gdlgbox.h>
 #endif
 
+/* Character codes $80-$8F */
+/*  1  */
+/* 2 4 */
+/*  8  */
+#define CH_HLINE		128|0|2|4|0
+#define CH_VLINE		128|1|0|0|8
+#define CH_ULCORNER		128|1|2|0|0
+#define CH_URCORNER		128|1|0|4|0
+#define CH_LLCORNER		128|0|2|0|8
+#define CH_LRCORNER		128|0|0|4|8
+#define CH_TTEE			128|1|2|4|0
+#define CH_RTEE			128|1|0|4|8
+#define CH_BTEE			128|0|2|4|8
+#define CH_LTEE			128|1|2|0|8
+#define CH_CROSS		128|1|2|4|8
 
+/* Additional key defines */
+#define CH_F1			133
+#define CH_F2			137
+#define CH_F3			134
+#define CH_F4			138
+#define CH_F5			135
+#define CH_F6			139
+#define CH_F7			136
+#define CH_F8			140
+
+#define CH_CURS_UP		145
+#define CH_CURS_DOWN		 17
+#define CH_CURS_LEFT		157
+#define CH_CURS_RIGHT		 29
+#define CH_DEL			 20
+#define CH_INS			148
+#define CH_ENTER		'\n'
+#define CH_STOP			  3
+#define CH_ESC			 27
 
 /* End of geos.h */
 #endif
-
-
-
diff --git a/include/time.h b/include/time.h
index 7ed6a9c70..7cff2d7c3 100644
--- a/include/time.h
+++ b/include/time.h
@@ -96,6 +96,9 @@ unsigned _clocks_per_sec (void);
 #elif defined(__NES__)
 #  define CLK_TCK    	       	50 	/* POSIX */
 #  define CLOCKS_PER_SEC	50	/* ANSI */
+#elif  defined(__GEOS__)
+#  define CLK_TCK		1	/* POSIX */
+#  define CLOCKS_PER_SEC	1	/* ANSI */
 #endif
 
 
diff --git a/libsrc/geos/system/systime.c b/libsrc/geos/system/systime.c
index 14e56641a..b3d4ab11f 100644
--- a/libsrc/geos/system/systime.c
+++ b/libsrc/geos/system/systime.c
@@ -27,3 +27,8 @@ struct tm currentTime;
 
 }
 
+clock_t clock(void) {
+
+    return _systime();
+
+}