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Diffstat (limited to 'src/VBox/ValidationKit/utils/cpu/xmmsaving-asm.asm')
| -rw-r--r-- | src/VBox/ValidationKit/utils/cpu/xmmsaving-asm.asm | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/utils/cpu/xmmsaving-asm.asm b/src/VBox/ValidationKit/utils/cpu/xmmsaving-asm.asm new file mode 100644 index 00000000..49a29e7a --- /dev/null +++ b/src/VBox/ValidationKit/utils/cpu/xmmsaving-asm.asm @@ -0,0 +1,162 @@ +; $Id: xmmsaving-asm.asm $ +;; @file +; xmmsaving - assembly helpers. +; + +; +; Copyright (C) 2009-2023 Oracle and/or its affiliates. +; +; This file is part of VirtualBox base platform packages, as +; available from https://www.virtualbox.org. +; +; This program is free software; you can redistribute it and/or +; modify it under the terms of the GNU General Public License +; as published by the Free Software Foundation, in version 3 of the +; License. +; +; This program is distributed in the hope that it will be useful, but +; WITHOUT ANY WARRANTY; without even the implied warranty of +; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +; General Public License for more details. +; +; You should have received a copy of the GNU General Public License +; along with this program; if not, see <https://www.gnu.org/licenses>. +; +; The contents of this file may alternatively be used under the terms +; of the Common Development and Distribution License Version 1.0 +; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included +; in the VirtualBox distribution, in which case the provisions of the +; CDDL are applicable instead of those of the GPL. +; +; You may elect to license modified versions of this file under the +; terms and conditions of either the GPL or the CDDL or both. +; +; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 +; + + +%include "iprt/asmdefs.mac" +%include "VBox/vmm/stam.mac" + + +BEGINCODE + + +;; +; DECLASM(int) XmmSavingTestLoadSet(const MYXMMREGSET *pSet, const MYXMMREGSET *pPrevSet, PRTUINT128U pBadVal); +; +; @returns 0 on success, 1-based register number on failure. +; @param pSet The new set. +; @param pPrevSet The previous set. Can be NULL. +; @param pBadVal Where to store the actual register value on failure. +; +BEGINPROC XmmSavingTestLoadSet + push xBP + mov xBP, xSP + sub xSP, 32 ; Space for storing an XMM register (in TEST_REG). + and xSP, ~31 ; Align it. + + ; Unify register/arguments. +%ifdef ASM_CALL64_GCC + mov r8, rdx ; pBadVal + mov xCX, rdi ; pSet + mov xDX, rsi ; pPrevSet +%endif +%ifdef RT_ARCH_X86 + mov xCX, [ebp + 8] ; pSet + mov xDX, [ebp + 12] ; pPrevSet +%endif + + test xDX, xDX + jz near .just_load + + ; Check that the old set is still correct. +%macro TEST_REG 1, + movdqa [xSP], xmm %+ %1 + mov xAX, [xDX + %1 * 8] + cmp [xSP], xAX + jne %%bad + mov xAX, [xDX + %1 * 8 + xCB] + cmp [xSP + xCB], xAX +%ifdef RT_ARCH_X86 + jne %%bad + mov xAX, [xDX + %1 * 8 + xCB*2] + cmp [xSP + xCB*2], xAX + jne %%bad + mov xAX, [xDX + %1 * 8 + xCB*3] + cmp [xSP + xCB*3], xAX +%endif + je %%next +%%bad: + mov eax, %1 + 1 + jmp .return_copy_badval +%%next: +%endmacro + + TEST_REG 0 + TEST_REG 1 + TEST_REG 2 + TEST_REG 3 + TEST_REG 4 + TEST_REG 5 + TEST_REG 6 + TEST_REG 7 +%ifdef RT_ARCH_AMD64 + TEST_REG 8 + TEST_REG 9 + TEST_REG 10 + TEST_REG 11 + TEST_REG 12 + TEST_REG 13 + TEST_REG 14 + TEST_REG 15 +%endif + + ; Load the new state. +.just_load: + movdqu xmm0, [xCX + 0*8] + movdqu xmm1, [xCX + 1*8] + movdqu xmm2, [xCX + 2*8] + movdqu xmm3, [xCX + 3*8] + movdqu xmm4, [xCX + 4*8] + movdqu xmm5, [xCX + 5*8] + movdqu xmm6, [xCX + 6*8] + movdqu xmm7, [xCX + 7*8] +%ifdef RT_ARCH_AMD64 + movdqu xmm8, [xCX + 8*8] + movdqu xmm9, [xCX + 9*8] + movdqu xmm10, [xCX + 10*8] + movdqu xmm11, [xCX + 11*8] + movdqu xmm12, [xCX + 12*8] + movdqu xmm13, [xCX + 13*8] + movdqu xmm14, [xCX + 14*8] + movdqu xmm15, [xCX + 15*8] +%endif + xor eax, eax + jmp .return + +.return_copy_badval: + ; don't touch eax here. +%ifdef RT_ARCH_X86 + mov edx, [ebp + 16] + mov ecx, [esp] + mov [edx ], ecx + mov ecx, [esp + 4] + mov [edx + 4], ecx + mov ecx, [esp + 8] + mov [edx + 8], ecx + mov ecx, [esp + 12] + mov [edx + 12], ecx +%else + mov rdx, [rsp] + mov rcx, [rsp + 8] + mov [r8], rdx + mov [r8 + 8], rcx +%endif + jmp .return + +.return: + leave + ret +ENDPROC XmmSavingTestLoadSet + |