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Last change
on this file since 476 was
444,
checked in by satin@…, 7 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.5 KB
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| [444] | 1 | /* crt0.S -- startup file for FT32 |
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| 2 | * |
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| 3 | * Copyright (c) 2015 FTDI |
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| 4 | * |
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| 5 | * The authors hereby grant permission to use, copy, modify, distribute, |
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| 6 | * and license this software and its documentation for any purpose, provided |
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| 7 | * that existing copyright notices are retained in all copies and that this |
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| 8 | * notice is included verbatim in any distributions. No written agreement, |
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| 9 | * license, or royalty fee is required for any of the authorized uses. |
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| 10 | * Modifications to this software may be copyrighted by their authors |
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| 11 | * and need not follow the licensing terms described here, provided that |
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| 12 | * the new terms are clearly indicated on the first page of each file where |
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| 13 | * they apply. |
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| 14 | */ |
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| 15 | |
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| 16 | .globl __start |
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| 17 | .weak _start |
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| 18 | .text |
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| 19 | .type __start,@function |
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| 20 | |
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| 21 | __start: |
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| 22 | _start: |
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| 23 | |
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| 24 | jmp truestart |
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| 25 | jmp truestart |
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| 26 | |
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| 27 | reti |
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| 28 | reti |
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| 29 | reti |
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| 30 | reti |
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| 31 | reti |
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| 32 | reti |
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| 55 | reti |
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| 56 | reti |
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| 57 | reti |
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| 58 | reti |
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| 59 | |
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| 60 | truestart: |
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| 61 | ldk.l $sp, 0xfffc /* set the top of stack */ |
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| 62 | ldk.l $fp,0 /* zero fp to allow unwinders to stop */ |
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| 63 | |
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| 64 | /* Set argc and argv to zero */ |
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| 65 | ldk.l $r0, 0 |
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| 66 | ldk.l $r1, 0 |
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| 67 | |
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| 68 | sub.l $sp,$sp,24 # room for the args to main |
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| 69 | call main |
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| 70 | call exit |
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| 71 | |
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| 72 | .Lend: |
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| 73 | .size __start,(.Lend-__start) |
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