.. | .. |
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| 1 | +/* SPDX-License-Identifier: GPL-2.0-only */ |
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1 | 2 | /* |
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2 | 3 | * linux/arch/arm/lib/memset.S |
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3 | 4 | * |
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4 | 5 | * Copyright (C) 1995-2000 Russell King |
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5 | | - * |
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6 | | - * This program is free software; you can redistribute it and/or modify |
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7 | | - * it under the terms of the GNU General Public License version 2 as |
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8 | | - * published by the Free Software Foundation. |
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9 | 6 | * |
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10 | 7 | * ASM optimised string functions |
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11 | 8 | */ |
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.. | .. |
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44 | 41 | mov lr, r3 |
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45 | 42 | |
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46 | 43 | 2: subs r2, r2, #64 |
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47 | | - stmgeia ip!, {r1, r3, r8, lr} @ 64 bytes at a time. |
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48 | | - stmgeia ip!, {r1, r3, r8, lr} |
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49 | | - stmgeia ip!, {r1, r3, r8, lr} |
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50 | | - stmgeia ip!, {r1, r3, r8, lr} |
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| 44 | + stmiage ip!, {r1, r3, r8, lr} @ 64 bytes at a time. |
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| 45 | + stmiage ip!, {r1, r3, r8, lr} |
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| 46 | + stmiage ip!, {r1, r3, r8, lr} |
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| 47 | + stmiage ip!, {r1, r3, r8, lr} |
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51 | 48 | bgt 2b |
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52 | | - ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go. |
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| 49 | + ldmfdeq sp!, {r8, pc} @ Now <64 bytes to go. |
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53 | 50 | /* |
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54 | 51 | * No need to correct the count; we're only testing bits from now on |
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55 | 52 | */ |
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56 | 53 | tst r2, #32 |
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57 | | - stmneia ip!, {r1, r3, r8, lr} |
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58 | | - stmneia ip!, {r1, r3, r8, lr} |
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| 54 | + stmiane ip!, {r1, r3, r8, lr} |
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| 55 | + stmiane ip!, {r1, r3, r8, lr} |
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59 | 56 | tst r2, #16 |
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60 | | - stmneia ip!, {r1, r3, r8, lr} |
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| 57 | + stmiane ip!, {r1, r3, r8, lr} |
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61 | 58 | ldmfd sp!, {r8, lr} |
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62 | 59 | UNWIND( .fnend ) |
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63 | 60 | |
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.. | .. |
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87 | 84 | rsb r8, r8, #32 |
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88 | 85 | sub r2, r2, r8 |
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89 | 86 | movs r8, r8, lsl #(32 - 4) |
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90 | | - stmcsia ip!, {r4, r5, r6, r7} |
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91 | | - stmmiia ip!, {r4, r5} |
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| 87 | + stmiacs ip!, {r4, r5, r6, r7} |
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| 88 | + stmiami ip!, {r4, r5} |
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92 | 89 | tst r8, #(1 << 30) |
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93 | 90 | mov r8, r1 |
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94 | 91 | strne r1, [ip], #4 |
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95 | 92 | |
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96 | 93 | 3: subs r2, r2, #64 |
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97 | | - stmgeia ip!, {r1, r3-r8, lr} |
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98 | | - stmgeia ip!, {r1, r3-r8, lr} |
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| 94 | + stmiage ip!, {r1, r3-r8, lr} |
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| 95 | + stmiage ip!, {r1, r3-r8, lr} |
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99 | 96 | bgt 3b |
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100 | | - ldmeqfd sp!, {r4-r8, pc} |
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| 97 | + ldmfdeq sp!, {r4-r8, pc} |
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101 | 98 | |
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102 | 99 | tst r2, #32 |
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103 | | - stmneia ip!, {r1, r3-r8, lr} |
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| 100 | + stmiane ip!, {r1, r3-r8, lr} |
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104 | 101 | tst r2, #16 |
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105 | | - stmneia ip!, {r4-r7} |
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| 102 | + stmiane ip!, {r4-r7} |
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106 | 103 | ldmfd sp!, {r4-r8, lr} |
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107 | 104 | UNWIND( .fnend ) |
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108 | 105 | |
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.. | .. |
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110 | 107 | |
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111 | 108 | UNWIND( .fnstart ) |
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112 | 109 | 4: tst r2, #8 |
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113 | | - stmneia ip!, {r1, r3} |
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| 110 | + stmiane ip!, {r1, r3} |
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114 | 111 | tst r2, #4 |
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115 | 112 | strne r1, [ip], #4 |
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116 | 113 | /* |
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.. | .. |
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118 | 115 | * may have an unaligned pointer as well. |
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119 | 116 | */ |
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120 | 117 | 5: tst r2, #2 |
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121 | | - strneb r1, [ip], #1 |
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122 | | - strneb r1, [ip], #1 |
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| 118 | + strbne r1, [ip], #1 |
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| 119 | + strbne r1, [ip], #1 |
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123 | 120 | tst r2, #1 |
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124 | | - strneb r1, [ip], #1 |
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| 121 | + strbne r1, [ip], #1 |
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125 | 122 | ret lr |
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126 | 123 | |
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127 | 124 | 6: subs r2, r2, #4 @ 1 do we have enough |
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128 | 125 | blt 5b @ 1 bytes to align with? |
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129 | 126 | cmp r3, #2 @ 1 |
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130 | | - strltb r1, [ip], #1 @ 1 |
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131 | | - strleb r1, [ip], #1 @ 1 |
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| 127 | + strblt r1, [ip], #1 @ 1 |
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| 128 | + strble r1, [ip], #1 @ 1 |
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132 | 129 | strb r1, [ip], #1 @ 1 |
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133 | 130 | add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) |
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134 | 131 | b 1b |
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