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Diffstat (limited to 'firmware/decompressor/startup.S')
-rw-r--r-- | firmware/decompressor/startup.S | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/firmware/decompressor/startup.S b/firmware/decompressor/startup.S deleted file mode 100644 index 1e5d6fa1ee..0000000000 --- a/firmware/decompressor/startup.S +++ /dev/null | |||
@@ -1,59 +0,0 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2005 by Jens Arnold | ||
11 | * based on crt0.S by Linus Nielsen Feltzing | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or | ||
14 | * modify it under the terms of the GNU General Public License | ||
15 | * as published by the Free Software Foundation; either version 2 | ||
16 | * of the License, or (at your option) any later version. | ||
17 | * | ||
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
19 | * KIND, either express or implied. | ||
20 | * | ||
21 | ****************************************************************************/ | ||
22 | .section .start,"ax",@progbits | ||
23 | .global _start | ||
24 | _start: | ||
25 | /* copy the .iram section */ | ||
26 | mov.l .iramcopy_k,r0 | ||
27 | mov.l .iram_k,r1 | ||
28 | mov.l .iramend_k,r2 | ||
29 | /* Note: We cannot put a PC relative load into the delay slot of a 'bra' | ||
30 | instruction (the offset would be wrong), but there is nothing else to | ||
31 | do before the loop, so the delay slot would be 'nop'. The cmp / bf | ||
32 | sequence is the same length, but more efficient. */ | ||
33 | cmp/hi r1,r2 | ||
34 | bf .noiramcopy | ||
35 | .iramloop: | ||
36 | mov.l @r0+,r3 | ||
37 | mov.l r3,@r1 | ||
38 | add #4,r1 | ||
39 | cmp/hi r1,r2 | ||
40 | bt .iramloop | ||
41 | .noiramcopy: | ||
42 | |||
43 | /* call the mainline */ | ||
44 | mov.l .main_k,r0 | ||
45 | mov.l .stackend_k,r15 | ||
46 | jmp @r0 | ||
47 | nop | ||
48 | |||
49 | .align 2 | ||
50 | .iramcopy_k: | ||
51 | .long _iramcopy | ||
52 | .iram_k: | ||
53 | .long _iramstart | ||
54 | .iramend_k: | ||
55 | .long _iramend | ||
56 | .stackend_k: | ||
57 | .long _stackend | ||
58 | .main_k: | ||
59 | .long _main | ||