1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** USBX Component */
16 /** */
17 /** Utility */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22
23 /* Include necessary system files. */
24
25 #define UX_SOURCE_CODE
26
27 #include "ux_api.h"
28
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _ux_utility_memory_copy PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Chaoqiong Xiao, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function copies a block of memory from a source to a */
43 /* destination. */
44 /* */
45 /* INPUT */
46 /* */
47 /* memory_destination Pointer to destination */
48 /* memory_source Pointer to source */
49 /* length Number of bytes to copy */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* None */
54 /* */
55 /* CALLS */
56 /* */
57 /* None */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* USBX Components */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
68 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
69 /* resulting in version 6.1 */
70 /* */
71 /**************************************************************************/
_ux_utility_memory_copy(VOID * memory_destination,VOID * memory_source,ULONG length)72 VOID _ux_utility_memory_copy(VOID *memory_destination, VOID *memory_source, ULONG length)
73 {
74
75 UCHAR * source;
76 UCHAR * destination;
77
78 /* Setup byte oriented source and destination pointers. */
79 source = (UCHAR *) memory_source;
80 destination = (UCHAR *) memory_destination;
81
82 /* Loop to perform the copy. */
83 while(length--)
84 {
85
86 /* Copy one byte. */
87 *destination++ = *source++;
88 }
89
90 /* Return to caller. */
91 return;
92 }
93
94
