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authorJoel Sherrill <joel.sherrill@OARcorp.com>1998-12-14 23:15:38 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1998-12-14 23:15:38 +0000
commit01629105c2817a59a4f1f05039593f211cf5ddaa (patch)
tree76f6bb8f9ca6ddbd015e3b81964a8dacffaf5cf9 /c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S
parentPatch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to rename all (diff)
downloadrtems-01629105c2817a59a4f1f05039593f211cf5ddaa.tar.bz2
Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to rename all
.s files to .S in conformance with GNU conventions. This is a minor step along the way to supporting automake.
Diffstat (limited to 'c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S')
-rw-r--r--c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S38
1 files changed, 38 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S b/c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S
new file mode 100644
index 0000000000..ef0ed8d212
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/dmv152/timer/timerisr.S
@@ -0,0 +1,38 @@
+/* timer_isr()
+ *
+ * This routine provides the ISR for the Z8536 timer on the DMV152
+ * board. The timer is set up to generate an interrupt at maximum
+ * intervals.
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#include "asm.h"
+
+BEGIN_CODE
+
+.set TIMER, 0x0c000007 | port A
+.set CT1_CMD_STATUS, 0x0a | command status register
+.set RELOAD, 0x26 | clr IP & IUS,allow countdown
+
+ PUBLIC(timerisr)
+SYM (timerisr):
+ movb #CT1_CMD_STATUS,TIMER | set pointer to cmd status reg
+ movb #RELOAD,TIMER | reload countdown
+ addql #1, SYM (Ttimer_val) | increment timer value
+ rte
+
+END_CODE
+END