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authorDale S. Rahn <rahnds@cvs.openbsd.org>1997-03-03 19:32:35 +0000
committerDale S. Rahn <rahnds@cvs.openbsd.org>1997-03-03 19:32:35 +0000
commit90ff5a441368313fa226376473fea6908c2c3539 (patch)
tree38e1de6dcfb2805194734736d7209f51e06fa9e1 /sys/arch/mvme88k/stand/libbug/m88k/diskwr.c
parent7848f1c3b3e234584c90f67e60c6164590478f49 (diff)
Third try at importing the mvme88k port. This is a working kernel
from nivas. Userland and compiler still need to be worked on. Make certain what directory the import is done from.
Diffstat (limited to 'sys/arch/mvme88k/stand/libbug/m88k/diskwr.c')
-rw-r--r--sys/arch/mvme88k/stand/libbug/m88k/diskwr.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/stand/libbug/m88k/diskwr.c b/sys/arch/mvme88k/stand/libbug/m88k/diskwr.c
new file mode 100644
index 00000000000..681f521b5b0
--- /dev/null
+++ b/sys/arch/mvme88k/stand/libbug/m88k/diskwr.c
@@ -0,0 +1,19 @@
+/*
+ * bug routines -- assumes that the necessary sections of memory
+ * are preserved.
+ */
+#include <sys/types.h>
+#include <machine/prom.h>
+
+/* returns 0: success, nonzero: error */
+int
+mvmeprom_diskwr(arg)
+ struct mvmeprom_dskio *arg;
+{
+ int ret;
+
+ asm volatile ("or r2,r0,%0": : "r" (arg) );
+ MVMEPROM_CALL(MVMEPROM_DSKWR);
+ asm volatile ("or %0,r0,r2" : "=r" (ret));
+ return (!(ret & 0x4));
+}