From 2496efde2453c0fc51c962dfe60dd740ba4268bf Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Tue, 15 Jan 2002 18:58:11 +0000
Subject: Initial revision

---
 cpu/74xx_7xx/io.S | 128 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 cpu/74xx_7xx/io.S

(limited to 'cpu')

diff --git a/cpu/74xx_7xx/io.S b/cpu/74xx_7xx/io.S
new file mode 100644
index 0000000..af2e6d1
--- /dev/null
+++ b/cpu/74xx_7xx/io.S
@@ -0,0 +1,128 @@
+/*
+ *  Copyright (C) 1998	Dan Malek <dmalek@jlc.net>
+ *  Copyright (C) 1999	Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ *  Copyright (C) 2001	Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ *			Andreas Heppel <aheppel@sysgo.de>
+ *  Copyright (C) 2002	Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <ppc_asm.tmpl>
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     in8 */
+/*  Description:  Input 8 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  in8
+in8:
+	lbz     r3,0(r3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     in16 */
+/*  Description:  Input 16 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  in16
+in16:
+	lhz     r3,0(r3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     in16r */
+/*  Description:  Input 16 bits and byte reverse */
+/* ------------------------------------------------------------------------------- */
+	.globl  in16r
+in16r:
+	lhbrx   r3,0,r3
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     in32 */
+/*  Description:  Input 32 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  in32
+in32:
+	lwz     3,0(3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     in32r */
+/*  Description:  Input 32 bits and byte reverse */
+/* ------------------------------------------------------------------------------- */
+    .globl  in32r
+in32r:
+	lwbrx   r3,0,r3
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     out8 */
+/*  Description:  Output 8 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  out8
+out8:
+	stb     r4,0(r3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     out16 */
+/*  Description:  Output 16 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  out16
+out16:
+	sth     r4,0(r3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     out16r */
+/*  Description:  Byte reverse and output 16 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  out16r
+out16r:
+	sthbrx  r4,0,r3
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     out32 */
+/*  Description:  Output 32 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  out32
+out32:
+	stw     r4,0(r3)
+	sync
+	blr
+
+/* ------------------------------------------------------------------------------- */
+/*  Function:     out32r */
+/*  Description:  Byte reverse and output 32 bits */
+/* ------------------------------------------------------------------------------- */
+	.globl  out32r
+out32r:
+	stwbrx  r4,0,r3
+	sync
+	blr
-- 
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