From 03261851a10dd2d6900a0a00a7515a0a46fb5d76 Mon Sep 17 00:00:00 2001
From: Ranjith Kumaran <ranjith@cygnus.com>
Date: Fri, 17 Mar 2000 22:48:54 +0000
Subject: 20000317 sourceware import

---
 libgloss/sparc/erc32-io.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 libgloss/sparc/erc32-io.c

(limited to 'libgloss/sparc/erc32-io.c')

diff --git a/libgloss/sparc/erc32-io.c b/libgloss/sparc/erc32-io.c
new file mode 100644
index 000000000..082d9f9c5
--- /dev/null
+++ b/libgloss/sparc/erc32-io.c
@@ -0,0 +1,47 @@
+#define USE_PORT_A
+
+#define RXADATA (int *) 0x01F800E0
+#define RXBDATA (int *) 0x01F800E4
+#define RXSTAT (int *) 0x01F800E8
+
+void
+outbyte (int c)
+{
+  volatile int *rxstat;
+  volatile int *rxadata;
+  int rxmask;
+
+  rxstat = RXSTAT;
+#ifdef USE_PORT_A
+  rxadata = RXADATA;
+  rxmask = 6;
+#else
+  rxadata = RXBDATA;
+  rxmask = 0x60000;
+#endif
+
+  while ((*rxstat & rxmask) == 0);
+
+  *rxadata = c;
+}
+
+int
+inbyte (void)
+{
+  volatile int *rxstat;
+  volatile int *rxadata;
+  int rxmask;
+
+  rxstat = RXSTAT;
+#ifdef USE_PORT_A
+  rxadata = RXADATA;
+  rxmask = 1;
+#else
+  rxadata = RXBDATA;
+  rxmask = 0x10000;
+#endif
+
+  while ((*rxstat & rxmask) == 0);
+
+  return *rxadata;
+}
-- 
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