2 * Copyright (c) 2013-2014 Robert N. M. Watson
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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39 * Save arguments from the BERI firmware for use in C-land, and jump into
40 * main. Assume that registers/stack/etc are sufficiently initialised to get
41 * going. Notice that we use only temporaries while relocating, as we want to
42 * retain argument registers to pass in to main().
44 * Note slightly surprising structure: boot2 is linked for a specific address,
45 * but we may start running the code somewhere else (e.g., in DRAM as inserted
46 * with JTAG, or in flash). The starting assembly is therefore PIC, but the
47 * main body of the code is not PIC.
57 * Zero BSS. Run from cached memory as this will speed up
58 * code execution noticeably. Assuming 64-bit alignment of
65 beq $t0, $t1, bss_done
77 * Ideally we wouldn't get here, but just in case.