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Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.0 KB
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| 1 | /* A memcpy.c for FT32 |
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| 2 | Copyright (C) 2014 FTDI (support@ftdichip.com) |
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| 3 | |
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| 4 | The authors hereby grant permission to use, copy, modify, distribute, |
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| 5 | and license this software and its documentation for any purpose, provided |
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| 6 | that existing copyright notices are retained in all copies and that this |
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| 7 | notice is included verbatim in any distributions. No written agreement, |
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| 8 | license, or royalty fee is required for any of the authorized uses. |
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| 9 | Modifications to this software may be copyrighted by their authors |
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| 10 | and need not follow the licensing terms described here, provided that |
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| 11 | the new terms are clearly indicated on the first page of each file where |
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| 12 | they apply. */ |
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| 13 | |
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| 14 | .text |
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| 15 | .global memcpy |
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| 16 | .type memcpy,@function |
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| 17 | memcpy: |
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| 18 | ldk $r3,32764 |
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| 19 | 1: |
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| 20 | cmp $r2,$r3 |
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| 21 | jmpc lte,2f |
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| 22 | memcpy.b $r0,$r1,$r3 |
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| 23 | add $r0,$r0,$r3 |
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| 24 | add $r1,$r1,$r3 |
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| 25 | sub $r2,$r2,$r3 |
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| 26 | jmp 1b |
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| 27 | 2: |
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| 28 | memcpy.b $r0,$r1,$r2 |
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| 29 | return |
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| 30 | .Lend2: |
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| 31 | .size memcpy,.Lend2-memcpy |
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| 32 | |
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