diff options
Diffstat (limited to 'third_party/dav1d/src/x86/cpuid.asm')
| -rw-r--r-- | third_party/dav1d/src/x86/cpuid.asm | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/third_party/dav1d/src/x86/cpuid.asm b/third_party/dav1d/src/x86/cpuid.asm new file mode 100644 index 0000000000..e1d9228660 --- /dev/null +++ b/third_party/dav1d/src/x86/cpuid.asm @@ -0,0 +1,55 @@ +; Copyright © 2018, VideoLAN and dav1d authors +; Copyright © 2018, Two Orioles, LLC +; All rights reserved. +; +; Redistribution and use in source and binary forms, with or without +; modification, are permitted provided that the following conditions are met: +; +; 1. Redistributions of source code must retain the above copyright notice, this +; list of conditions and the following disclaimer. +; +; 2. Redistributions in binary form must reproduce the above copyright notice, +; this list of conditions and the following disclaimer in the documentation +; and/or other materials provided with the distribution. +; +; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +; ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +%include "config.asm" +%include "ext/x86/x86inc.asm" + +SECTION .text + +cglobal cpu_cpuid, 0, 5, 0, regs, leaf, subleaf + mov r4, regsmp + mov eax, leafm + mov ecx, subleafm +%if ARCH_X86_64 + mov r5, rbx +%endif + cpuid + mov [r4+4*0], eax + mov [r4+4*1], ebx + mov [r4+4*2], edx + mov [r4+4*3], ecx +%if ARCH_X86_64 + mov rbx, r5 +%endif + RET + +cglobal cpu_xgetbv, 0, 0, 0, xcr + movifnidn ecx, xcrm + xgetbv +%if ARCH_X86_64 + shl rdx, 32 + or rax, rdx +%endif + RET |