LEGO Indiana Jones

[savezelda.git] / twilight / start.S

diff --git a/twilight/start.S b/twilight/start.S
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--- /dev/null
+++ b/twilight/start.S
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+// Copyright 2008-2009  Segher Boessenkool  <segher@kernel.crashing.org>
+// This code is licensed to you under the terms of the GNU GPL, version 2;
+// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
+
+#define XSTR(x) #x
+#define ISTR(x) XSTR(x)
+
+       .section .start,"ax"
+
+       // Uninteresting stuff.
+       .incbin "head.b"
+
+       // "Link".  This is displayed on the load menu, so make it nice.
+0:     .ascii ISTR(NAME)
+       .fill 17 - (. - 0b)
+
+       // "Epona".  Hungry horse eats the stack.
+       .fill 0xe8,1,'3'
+
+       // The return address on the stack.
+       .long start
+
+       // Align things properly -- there's code after this.
+       .fill 7,1,'S'
+       .balign 4,0
+
+start:
+       // Set up a stack frame.
+       lis 1,0x8080 ; li 0,0 ; stwu 0,-64(1)
+
+       // Pass the address we are called from, to determine region.
+       mflr 3
+
+       // Go for it!
+       b main