Mercurial > projects > ldc
annotate druntime/src/compiler/ldc/memset.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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1458
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1 /** |
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2 * Contains a memset implementation used by compiler-generated code. |
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3 * |
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4 * Copyright: Copyright Digital Mars 2004 - 2009. |
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5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. |
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6 * Authors: Walter Bright |
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7 * |
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8 * Copyright Digital Mars 2004 - 2009. |
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9 * Distributed under the Boost Software License, Version 1.0. |
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10 * (See accompanying file LICENSE_1_0.txt or copy at |
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11 * http://www.boost.org/LICENSE_1_0.txt) |
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12 */ |
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13 module rt.memset; |
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14 |
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15 extern (C) |
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16 { |
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17 // Functions from the C library. |
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18 void *memcpy(void *, void *, size_t); |
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19 } |
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20 |
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21 extern (C): |
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22 |
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23 short *_memset16(short *p, short value, size_t count) |
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24 { |
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25 short *pstart = p; |
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26 short *ptop; |
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27 |
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28 for (ptop = &p[count]; p < ptop; p++) |
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29 *p = value; |
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30 return pstart; |
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31 } |
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32 |
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33 int *_memset32(int *p, int value, size_t count) |
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34 { |
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35 version (X86) |
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36 { |
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37 asm |
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38 { |
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39 mov EDI,p ; |
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40 mov EAX,value ; |
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41 mov ECX,count ; |
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42 mov EDX,EDI ; |
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43 rep ; |
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44 stosd ; |
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45 mov EAX,EDX ; |
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46 } |
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47 } |
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48 else |
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49 { |
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50 int *pstart = p; |
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51 int *ptop; |
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52 |
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53 for (ptop = &p[count]; p < ptop; p++) |
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54 *p = value; |
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55 return pstart; |
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56 } |
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57 } |
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58 |
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59 long *_memset64(long *p, long value, size_t count) |
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60 { |
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61 long *pstart = p; |
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62 long *ptop; |
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63 |
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64 for (ptop = &p[count]; p < ptop; p++) |
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65 *p = value; |
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66 return pstart; |
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67 } |
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68 |
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69 cdouble *_memset128(cdouble *p, cdouble value, size_t count) |
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70 { |
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71 cdouble *pstart = p; |
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72 cdouble *ptop; |
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73 |
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74 for (ptop = &p[count]; p < ptop; p++) |
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75 *p = value; |
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76 return pstart; |
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77 } |
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78 |
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79 real *_memset80(real *p, real value, size_t count) |
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80 { |
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81 real *pstart = p; |
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82 real *ptop; |
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83 |
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84 for (ptop = &p[count]; p < ptop; p++) |
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85 *p = value; |
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86 return pstart; |
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87 } |
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88 |
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89 creal *_memset160(creal *p, creal value, size_t count) |
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90 { |
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91 creal *pstart = p; |
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92 creal *ptop; |
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93 |
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94 for (ptop = &p[count]; p < ptop; p++) |
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95 *p = value; |
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96 return pstart; |
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97 } |
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98 |
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99 void *_memsetn(void *p, void *value, int count, size_t sizelem) |
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100 { void *pstart = p; |
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101 int i; |
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102 |
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103 for (i = 0; i < count; i++) |
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104 { |
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105 memcpy(p, value, sizelem); |
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106 p = cast(void *)(cast(char *)p + sizelem); |
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107 } |
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108 return pstart; |
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109 } |