;------------------------------------------------------------------------------
;
; 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