1 files changed, 69 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/lowmem.S b/qemu/roms/SLOF/slof/lowmem.S
new file mode 100644
index 000000000..9aaa9f75c
--- /dev/null
+++ b/qemu/roms/SLOF/slof/lowmem.S
@@ -0,0 +1,69 @@
+/******************************************************************************
+ * 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
+ *****************************************************************************/
+
+#include <cpu.h>
+#include <xvect.h>
+
+	.globl _start
+	/* All exception vectors *******************/
+_start:
+	.org 0x100
+	/* check if Master / Slave *****************/
+	/* Master will go to XVECT_M_HANDLER       */
+	/* Slave  will go to XVECT_S_HANDLER       */
+#ifdef SECONDARY_CPUS_STOPPED
+	ld	r3,XVECT_S_HANDLER(0)
+	mfspr	r0, PIR
+	cmpwi	r0, 0
+	bne	0f
+#endif
+	ld	r3,XVECT_M_HANDLER(0)
+0:
+	mtctr	r3
+	li	r0,0x100
+	bctr
+
+	/* FIXME: Also need 0280, 0380, 0f20, etc. */
+
+	.irp i, 0x0200,0x0280,0x0300,0x0380,0x0400,0x0480,0x0500,0x0600,0x0700, \
+		0x0800,0x0900,0x0a00,0x0b00,0x0c00,0x0d00,0x0e00,0x0f00, \
+		0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, \
+		0x1800,0x1900,0x1a00,0x1b00,0x1c00,0x1d00,0x1e00,0x1f00, \
+		0x2000,0x2100,0x2200,0x2300,0x2400,0x2500,0x2600,0x2700, \
+		0x2800,0x2900,0x2a00,0x2b00,0x2c00,0x2d00,0x2e00,0x2f00
+	.org \i
+
+	/* enable this if you get exceptions before the console works    */
+	/* this will allow using the hardware debugger to see where      */
+	/* it traps, and with what register values etc.                  */
+	// b	$
+
+	mtsprg	0,r0
+	mfctr	r0
+	mtsprg  2,r0
+	mflr	r0
+	mtsprg  3,r0
+	ld	r0, XVECT_M_HANDLER(0)
+	mtctr	r0
+	li	r0,\i
+	bctr
+	.endr
+
+
+	.org XVECT_M_HANDLER
+	.quad 0
+
+	.org XVECT_S_HANDLER
+	.quad 0
+
+	.org XVECT_TOPADDR
+	.byte 0x36		# to fill out to exactly 16kB