| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; MathLShiftS64.nasm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; 64-bit Math Worker Function. | |
| ; Shifts a 64-bit signed value left by a certain number of bits. | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| SECTION .text | |
| global ASM_PFX(__ashldi3) | |
| ;------------------------------------------------------------------------------ | |
| ; | |
| ; void __cdecl __ashldi3 (void) | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| ASM_PFX(__ashldi3): | |
| cmp cl,0x40 | |
| jnc ReturnZero | |
| cmp cl,0x20 | |
| jnc More32 | |
| shld edx,eax,cl | |
| shl eax,cl | |
| ret | |
| More32: | |
| mov edx,eax | |
| xor eax,eax | |
| and cl,0x1f | |
| shl edx,cl | |
| ret | |
| ReturnZero: | |
| xor eax,eax | |
| xor edx,edx | |
| ret |