1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR> 4; This program and the accompanying materials 5; are licensed and made available under the terms and conditions of the BSD License 6; which accompanies this distribution. The full text of the license may be found at 7; http://opensource.org/licenses/bsd-license.php. 8; 9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11; 12; Module Name: 13; 14; MathLShiftS64.nasm 15; 16; Abstract: 17; 18; 64-bit Math Worker Function. 19; Shifts a 64-bit signed value left by a certain number of bits. 20; 21;------------------------------------------------------------------------------ 22 23 SECTION .text 24 25global ASM_PFX(__ashldi3) 26;------------------------------------------------------------------------------ 27; 28; void __cdecl __ashldi3 (void) 29; 30;------------------------------------------------------------------------------ 31ASM_PFX(__ashldi3): 32 cmp cl,0x40 33 jnc ReturnZero 34 cmp cl,0x20 35 jnc More32 36 shld edx,eax,cl 37 shl eax,cl 38 ret 39More32: 40 mov edx,eax 41 xor eax,eax 42 and cl,0x1f 43 shl edx,cl 44 ret 45ReturnZero: 46 xor eax,eax 47 xor edx,edx 48 ret 49