1 files changed, 87 insertions, 0 deletions
diff --git a/roms/SLOF/rtas/rtas_common.S b/roms/SLOF/rtas/rtas_common.S
new file mode 100644
index 000000000..35cd9a9f5
--- /dev/null
+++ b/roms/SLOF/rtas/rtas_common.S
@@ -0,0 +1,87 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+.globl save_regs_r3_r12
+.globl restore_regs_r3_r12
+.globl save_regs_r13_r25
+.globl restore_regs_r13_r25
+
+
+save_regs_r3_r12:
+	stdu    r1,-0x80(r1)            # allocate space on stack
+
+	std     r3,0x30(r1)
+	std     r4,0x38(r1)
+	std     r5,0x40(r1)
+	std     r6,0x48(r1)
+	std     r7,0x50(r1)
+	std     r8,0x58(r1)
+	std     r9,0x60(r1)
+	std     r10,0x68(r1)
+	std     r11,0x70(r1)
+	std     r12,0x78(r1)
+
+	blr
+	
+restore_regs_r3_r12:
+	ld      r3,0x30(r1)
+	ld      r4,0x38(r1)
+	ld      r5,0x40(r1)
+	ld      r6,0x48(r1)
+	ld      r7,0x50(r1)
+	ld      r8,0x58(r1)
+	ld      r9,0x60(r1)
+	ld      r10,0x68(r1)
+	ld      r11,0x70(r1)
+	ld      r12,0x78(r1)
+
+	addi    r1,r1,0x80		# cleanup stack
+
+	blr
+
+save_regs_r13_r25:
+	stdu    r1,-0x98(r1)            # allocate space on stack
+
+	std     r13,0x30(r1)
+	std     r14,0x38(r1)
+	std     r15,0x40(r1)
+	std     r16,0x48(r1)
+	std     r17,0x50(r1)
+	std     r18,0x58(r1)
+	std     r19,0x60(r1)
+	std     r20,0x68(r1)
+	std     r21,0x70(r1)
+	std     r22,0x78(r1)
+	std     r23,0x80(r1)
+	std     r24,0x88(r1)
+	std     r25,0x90(r1)
+
+	blr
+
+restore_regs_r13_r25:
+	ld      r13,0x30(r1)            # restore registers from stack
+	ld      r14,0x38(r1)
+	ld      r15,0x40(r1)
+	ld      r16,0x48(r1)
+	ld      r17,0x50(r1)
+	ld      r18,0x58(r1)
+	ld      r19,0x60(r1)
+	ld      r20,0x68(r1)
+	ld      r21,0x70(r1)
+	ld      r22,0x78(r1)
+	ld      r23,0x80(r1)
+	ld      r24,0x88(r1)
+	ld      r25,0x90(r1)
+
+	addi    r1,r1,0x98		# cleanup stack
+
+	blr