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|
/** @file
* IPRT - AMD64 and x86 Specific Assembly Functions, 32-bit Watcom C pragma aux.
*/
/*
* Copyright (C) 2006-2022 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
*/
#ifndef IPRT_INCLUDED_asm_amd64_x86_watcom_32_h
#define IPRT_INCLUDED_asm_amd64_x86_watcom_32_h
/* no pragma once */
#ifndef IPRT_INCLUDED_asm_amd64_x86_h
# error "Don't include this header directly."
#endif
#ifndef __FLAT__
# error "Only works with flat pointers! (-mf)"
#endif
/*
* Note! The #undef that preceds the #pragma aux statements is for undoing
* the mangling, because the symbol in #pragma aux [symbol] statements
* doesn't get subjected to preprocessing. This is also why we include
* the watcom header at both the top and the bottom of asm-amd64-x86.h file.
*/
#undef ASMGetIDTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetIDTR = \
"sidt fword ptr [ecx]" \
parm [ecx] \
modify exact [];
#endif
#undef ASMGetIdtrLimit
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetIdtrLimit = \
"sub esp, 8" \
"sidt fword ptr [esp]" \
"mov cx, [esp]" \
"add esp, 8" \
parm [] \
value [cx] \
modify exact [ecx];
#endif
#undef ASMSetIDTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetIDTR = \
"lidt fword ptr [ecx]" \
parm [ecx] nomemory \
modify nomemory;
#endif
#undef ASMGetGDTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetGDTR = \
"sgdt fword ptr [ecx]" \
parm [ecx] \
modify exact [];
#endif
#undef ASMSetGDTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetGDTR = \
"lgdt fword ptr [ecx]" \
parm [ecx] nomemory \
modify exact [] nomemory;
#endif
#undef ASMGetCS
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetCS = \
"mov ax, cs" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetDS
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDS = \
"mov ax, ds" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetES
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetES = \
"mov ax, es" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetFS
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetFS = \
"mov ax, fs" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetGS
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetGS = \
"mov ax, gs" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetSS
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetSS = \
"mov ax, ss" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetTR = \
"str ax" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetLDTR
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetLDTR = \
"sldt ax" \
parm [] nomemory \
value [ax] \
modify exact [eax] nomemory;
#endif
/** @todo ASMGetSegAttr */
#undef ASMGetFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetFlags = \
"pushfd" \
"pop eax" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetFlags = \
"push eax" \
"popfd" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMChangeFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMChangeFlags = \
"pushfd" \
"pop eax" \
"and edx, eax" \
"or edx, ecx" \
"push edx" \
"popfd" \
parm [edx] [ecx] nomemory \
value [eax] \
modify exact [edx] nomemory;
#endif
#undef ASMAddFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMAddFlags = \
"pushfd" \
"pop eax" \
"or edx, eax" \
"push edx" \
"popfd" \
parm [edx] nomemory \
value [eax] \
modify exact [edx] nomemory;
#endif
#undef ASMClearFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMClearFlags = \
"pushfd" \
"pop eax" \
"and edx, eax" \
"push edx" \
"popfd" \
parm [edx] nomemory \
value [eax] \
modify exact [edx] nomemory;
#endif
/* Note! Must use the 64-bit integer return value convension.
The order of registers in the value [set] does not seem to mean anything. */
#undef ASMReadTSC
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMReadTSC = \
".586" \
"rdtsc" \
parm [] nomemory \
value [eax edx] \
modify exact [edx eax] nomemory;
#endif
#undef ASMReadTscWithAux
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMReadTscWithAux = \
0x0f 0x01 0xf9 \
"mov [ebx], ecx" \
parm [ebx] \
value [eax edx] \
modify exact [eax edx ecx];
#endif
/* ASMCpuId: Implemented externally, too many parameters. */
/* ASMCpuId_Idx_ECX: Implemented externally, too many parameters. */
/* ASMCpuIdExSlow: Always implemented externally. */
#undef ASMCpuId_ECX_EDX
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMCpuId_ECX_EDX = \
".586" \
"cpuid" \
"mov [edi], ecx" \
"mov [esi], edx" \
parm [eax] [edi] [esi] \
modify exact [eax ebx ecx edx];
#endif
#undef ASMCpuId_EAX
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMCpuId_EAX = \
".586" \
"cpuid" \
parm [eax] \
value [eax] \
modify exact [eax ebx ecx edx];
#endif
#undef ASMCpuId_EBX
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMCpuId_EBX = \
".586" \
"cpuid" \
parm [eax] \
value [ebx] \
modify exact [eax ebx ecx edx];
#endif
#undef ASMCpuId_ECX
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMCpuId_ECX = \
".586" \
"cpuid" \
parm [eax] \
value [ecx] \
modify exact [eax ebx ecx edx];
#endif
#undef ASMCpuId_EDX
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMCpuId_EDX = \
".586" \
"cpuid" \
parm [eax] \
value [edx] \
modify exact [eax ebx ecx edx];
#endif
/* ASMHasCpuId: MSC inline in main source file. */
#undef ASMGetApicId
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetApicId = \
".586" \
"xor eax, eax" \
"cpuid" \
"shr ebx,24" \
parm [] \
value [bl] \
modify exact [eax ebx ecx edx];
#endif
#undef ASMGetCR0
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetCR0 = \
"mov eax, cr0" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetCR0
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetCR0 = \
"mov cr0, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMGetCR2
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetCR2 = \
"mov eax, cr2" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetCR2
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetCR2 = \
"mov cr2, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMGetCR3
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetCR3 = \
"mov eax, cr3" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetCR3
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetCR3 = \
"mov cr3, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMReloadCR3
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMReloadCR3 = \
"mov eax, cr3" \
"mov cr3, eax" \
parm [] nomemory \
modify exact [eax] nomemory;
#endif
#undef ASMGetCR4
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetCR4 = \
"mov eax, cr4" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetCR4
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetCR4 = \
"mov cr4, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
/* ASMGetCR8: Don't bother for 32-bit. */
/* ASMSetCR8: Don't bother for 32-bit. */
#undef ASMIntEnable
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMIntEnable = \
"sti" \
parm [] nomemory \
modify exact [] nomemory;
#endif
#undef ASMIntDisable
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMIntDisable = \
"cli" \
parm [] nomemory \
modify exact [] nomemory;
#endif
#undef ASMIntDisableFlags
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMIntDisableFlags = \
"pushfd" \
"cli" \
"pop eax" \
parm [] nomemory \
value [eax] \
modify exact [] nomemory;
#endif
#undef ASMHalt
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMHalt = \
"hlt" \
parm [] nomemory \
modify exact [] nomemory;
#endif
#undef ASMRdMsr
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMRdMsr = \
".586" \
"rdmsr" \
parm [ecx] nomemory \
value [eax edx] \
modify exact [eax edx] nomemory;
#endif
#undef ASMWrMsr
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMWrMsr = \
".586" \
"wrmsr" \
parm [ecx] [eax edx] nomemory \
modify exact [] nomemory;
#endif
#undef ASMRdMsrEx
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMRdMsrEx = \
".586" \
"rdmsr" \
parm [ecx] [edi] nomemory \
value [eax edx] \
modify exact [eax edx] nomemory;
#endif
#undef ASMWrMsrEx
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMWrMsrEx = \
".586" \
"wrmsr" \
parm [ecx] [edi] [eax edx] nomemory \
modify exact [] nomemory;
#endif
#undef ASMRdMsr_Low
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMRdMsr_Low = \
".586" \
"rdmsr" \
parm [ecx] nomemory \
value [eax] \
modify exact [eax edx] nomemory;
#endif
#undef ASMRdMsr_High
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMRdMsr_High = \
".586" \
"rdmsr" \
parm [ecx] nomemory \
value [edx] \
modify exact [eax edx] nomemory;
#endif
#undef ASMGetDR0
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR0 = \
"mov eax, dr0" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetDR1
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR1 = \
"mov eax, dr1" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetDR2
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR2 = \
"mov eax, dr2" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetDR3
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR3 = \
"mov eax, dr3" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetDR6
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR6 = \
"mov eax, dr6" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMGetAndClearDR6
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetAndClearDR6 = \
"mov edx, 0ffff0ff0h" \
"mov eax, dr6" \
"mov dr6, edx" \
parm [] nomemory \
value [eax] \
modify exact [eax edx] nomemory;
#endif
#undef ASMGetDR7
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMGetDR7 = \
"mov eax, dr7" \
parm [] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
#undef ASMSetDR0
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR0 = \
"mov dr0, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMSetDR1
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR1 = \
"mov dr1, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMSetDR2
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR2 = \
"mov dr2, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMSetDR3
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR3 = \
"mov dr3, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMSetDR6
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR6 = \
"mov dr6, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMSetDR7
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMSetDR7 = \
"mov dr7, eax" \
parm [eax] nomemory \
modify exact [] nomemory;
#endif
/* Yeah, could've used outp here, but this keeps the main file simpler. */
#undef ASMOutU8
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutU8 = \
"out dx, al" \
parm [dx] [al] nomemory \
modify exact [] nomemory;
#endif
#undef ASMInU8
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInU8 = \
"in al, dx" \
parm [dx] nomemory \
value [al] \
modify exact [] nomemory;
#endif
#undef ASMOutU16
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutU16 = \
"out dx, ax" \
parm [dx] [ax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMInU16
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInU16 = \
"in ax, dx" \
parm [dx] nomemory \
value [ax] \
modify exact [] nomemory;
#endif
#undef ASMOutU32
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutU32 = \
"out dx, eax" \
parm [dx] [eax] nomemory \
modify exact [] nomemory;
#endif
#undef ASMInU32
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInU32 = \
"in eax, dx" \
parm [dx] nomemory \
value [eax] \
modify exact [] nomemory;
#endif
#undef ASMOutStrU8
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutStrU8 = \
"rep outsb" \
parm [dx] [esi] [ecx] nomemory \
modify exact [esi ecx] nomemory;
#endif
#undef ASMInStrU8
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInStrU8 = \
"rep insb" \
parm [dx] [edi] [ecx] \
modify exact [edi ecx];
#endif
#undef ASMOutStrU16
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutStrU16 = \
"rep outsw" \
parm [dx] [esi] [ecx] nomemory \
modify exact [esi ecx] nomemory;
#endif
#undef ASMInStrU16
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInStrU16 = \
"rep insw" \
parm [dx] [edi] [ecx] \
modify exact [edi ecx];
#endif
#undef ASMOutStrU32
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMOutStrU32 = \
"rep outsd" \
parm [dx] [esi] [ecx] nomemory \
modify exact [esi ecx] nomemory;
#endif
#undef ASMInStrU32
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInStrU32 = \
"rep insd" \
parm [dx] [edi] [ecx] \
modify exact [edi ecx];
#endif
#undef ASMInvalidatePage
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInvalidatePage = \
"invlpg [eax]" \
parm [eax] \
modify exact [];
#endif
#undef ASMWriteBackAndInvalidateCaches
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMWriteBackAndInvalidateCaches = \
".486" \
"wbinvd" \
parm [] nomemory \
modify exact [] nomemory;
#endif
#undef ASMInvalidateInternalCaches
#ifdef IPRT_ASM_AMD64_X86_WATCOM_32_INSTANTIATE
#pragma aux ASMInvalidateInternalCaches = \
".486" \
"invd" \
parm [] \
modify exact [];
#endif
#endif /* !IPRT_INCLUDED_asm_amd64_x86_watcom_32_h */
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