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authorJoel Sherrill <joel.sherrill@OARcorp.com>1996-10-15 20:57:04 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1996-10-15 20:57:04 +0000
commit752cd8fb98f1c65b9f482bdbebeef0bd14d98856 (patch)
tree0defcc0e4f536c41e46d2d8e4dc5d34e25900cf4 /c/src/lib/libbsp/i386/i386ex/timer/timerisr.s
parentpatches to erc32.h to correct handling of timer mirror from Jiri Gaisler. (diff)
downloadrtems-752cd8fb98f1c65b9f482bdbebeef0bd14d98856.tar.bz2
initial version from Erik
Diffstat (limited to '')
-rw-r--r--c/src/lib/libbsp/i386/i386ex/timer/timerisr.s34
1 files changed, 34 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s b/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s
new file mode 100644
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+/* timer_isr()
+ *
+ * This routine provides the ISR for the Z8036 timer on the MVME136
+ * board. The timer is set up to generate an interrupt at maximum
+ * intervals.
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ * On-Line Applications Research Corporation (OAR).
+ * All rights assigned to U.S. Government, 1994.
+ *
+ * This material may be reproduced by or for the U.S. Government pursuant
+ * to the copyright license under the clause at DFARS 252.227-7013. This
+ * notice must appear in all copies of this file and its derivatives.
+ *
+ * $Id$
+ */
+
+#include "asm.h"
+
+ BEGIN_CODE
+
+ EXTERN (Ttimer_val)
+
+ PUBLIC (timerisr)
+SYM (timerisr):
+ addl $250, SYM (Ttimer_val) # another 250 microseconds
+ iret
+
+END_CODE
+END