mirror of
https://github.com/libretro/pcsx2.git
synced 2024-11-27 03:10:31 +00:00
Common: Add Fastjmp
This commit is contained in:
Connor McLaughlin
refractionpcsx2
parent
2af8cde40d
commit
4594e02812
@ -17,6 +17,7 @@ target_sources(common PRIVATE
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EventSource.cpp
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Exceptions.cpp
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FastFormatString.cpp
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FastJmp.cpp
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IniInterface.cpp
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Mutex.cpp
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PathUtils.cpp
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@ -63,6 +64,7 @@ target_sources(common PRIVATE
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Dependencies.h
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EventSource.h
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Exceptions.h
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FastJmp.h
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General.h
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MemcpyFast.h
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MemsetFast.inl
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@ -114,6 +116,8 @@ if(USE_VTUNE)
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endif()
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if(WIN32)
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enable_language(ASM_MASM)
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target_sources(common PRIVATE FastJmp.asm)
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target_link_libraries(common PUBLIC pthreads4w Winmm.lib)
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endif()
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129
common/FastJmp.asm
Normal file
129
common/FastJmp.asm
Normal file
@ -0,0 +1,129 @@
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; PCSX2 - PS2 Emulator for PCs
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; Copyright (C) 2002-2021 PCSX2 Dev Team
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;
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; PCSX2 is free software: you can redistribute it and/or modify it under the terms
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; of the GNU Lesser General Public License as published by the Free Software Found-
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; ation, either version 3 of the License, or (at your option) any later version.
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;
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; PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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; PURPOSE. See the GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License along with PCSX2.
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; If not, see <http://www.gnu.org/licenses/>.
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IFDEF _M_X86_32
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; -----------------------------------------
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; 32-bit X86
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; -----------------------------------------
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.386
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.model flat
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_TEXT SEGMENT
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PUBLIC @fastjmp_set@4
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PUBLIC @fastjmp_jmp@8
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; void fastjmp_set(fastjmp_buf*)
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@fastjmp_set@4 PROC
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mov eax, dword ptr [esp]
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mov edx, esp ; fixup stack pointer, so it doesn't include the call to fastjmp_set
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add edx, 4
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mov dword ptr [ecx], eax ; actually eip
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mov dword ptr [ecx + 4], ebx
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mov dword ptr [ecx + 8], edx ; actually esp
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mov dword ptr [ecx + 12], ebp
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mov dword ptr [ecx + 16], esi
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mov dword ptr [ecx + 20], edi
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xor eax, eax
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ret
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@fastjmp_set@4 ENDP
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; void __fastcall fastjmp_jmp(fastjmp_buf*, int)
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@fastjmp_jmp@8 PROC
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mov eax, edx ; return code
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mov edx, dword ptr [ecx + 0]
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mov ebx, dword ptr [ecx + 4]
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mov esp, dword ptr [ecx + 8]
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mov ebp, dword ptr [ecx + 12]
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mov esi, dword ptr [ecx + 16]
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mov edi, dword ptr [ecx + 20]
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jmp edx
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@fastjmp_jmp@8 ENDP
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_TEXT ENDS
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ENDIF ; _M_X86_32
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IFDEF _M_X86_64
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; -----------------------------------------
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; 64-bit X86
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; -----------------------------------------
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_TEXT SEGMENT
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PUBLIC fastjmp_set
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PUBLIC fastjmp_jmp
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; void fastjmp_set(fastjmp_buf*)
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fastjmp_set PROC
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mov rax, qword ptr [rsp]
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mov rdx, rsp ; fixup stack pointer, so it doesn't include the call to fastjmp_set
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add rdx, 8
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mov qword ptr [rcx], rax ; actually rip
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mov qword ptr [rcx + 8], rbx
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mov qword ptr [rcx + 16], rdx ; actually rsp
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mov qword ptr [rcx + 24], rbp
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mov qword ptr [rcx + 32], rsi
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mov qword ptr [rcx + 40], rdi
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mov qword ptr [rcx + 48], r12
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mov qword ptr [rcx + 56], r13
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mov qword ptr [rcx + 64], r14
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mov qword ptr [rcx + 72], r15
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movaps xmmword ptr [rcx + 80], xmm6
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movaps xmmword ptr [rcx + 96], xmm7
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movaps xmmword ptr [rcx + 112], xmm8
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add rcx, 112 ; split to two batches to fit displacement in a single byte
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movaps xmmword ptr [rcx + 16], xmm9
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movaps xmmword ptr [rcx + 32], xmm10
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movaps xmmword ptr [rcx + 48], xmm11
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movaps xmmword ptr [rcx + 64], xmm12
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movaps xmmword ptr [rcx + 80], xmm13
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movaps xmmword ptr [rcx + 96], xmm14
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movaps xmmword ptr [rcx + 112], xmm15
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xor eax, eax
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ret
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fastjmp_set ENDP
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; void fastjmp_jmp(fastjmp_buf*, int)
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fastjmp_jmp PROC
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mov eax, edx ; return code
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mov rdx, qword ptr [rcx + 0] ; actually rip
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mov rbx, qword ptr [rcx + 8]
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mov rsp, qword ptr [rcx + 16]
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mov rbp, qword ptr [rcx + 24]
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mov rsi, qword ptr [rcx + 32]
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mov rdi, qword ptr [rcx + 40]
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mov r12, qword ptr [rcx + 48]
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mov r13, qword ptr [rcx + 56]
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mov r14, qword ptr [rcx + 64]
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mov r15, qword ptr [rcx + 72]
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movaps xmm6, xmmword ptr [rcx + 80]
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movaps xmm7, xmmword ptr [rcx + 96]
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movaps xmm8, xmmword ptr [rcx + 112]
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add rcx, 112 ; split to two batches to fit displacement in a single byte
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movaps xmm9, xmmword ptr [rcx + 16]
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movaps xmm10, xmmword ptr [rcx + 32]
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movaps xmm11, xmmword ptr [rcx + 48]
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movaps xmm12, xmmword ptr [rcx + 64]
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movaps xmm13, xmmword ptr [rcx + 80]
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movaps xmm14, xmmword ptr [rcx + 96]
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movaps xmm15, xmmword ptr [rcx + 112]
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jmp rdx
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fastjmp_jmp ENDP
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_TEXT ENDS
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ENDIF ; _M_X86_64
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END
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92
common/FastJmp.cpp
Normal file
92
common/FastJmp.cpp
Normal file
@ -0,0 +1,92 @@
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/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2021 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "FastJmp.h"
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#ifndef _WIN32
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#if defined(__APPLE__)
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#define PREFIX "_"
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#else
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#define PREFIX ""
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#endif
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#if defined(_M_X86_64)
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asm(
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"\t.global " PREFIX "fastjmp_set\n"
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"\t.global " PREFIX "fastjmp_jmp\n"
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"\t.text\n"
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"\t" PREFIX "fastjmp_set:" R"(
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movq 0(%rsp), %rax
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movq %rsp, %rdx # fixup stack pointer, so it doesn't include the call to fastjmp_set
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addq $8, %rdx
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movq %rax, 0(%rdi) # actually rip
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movq %rbx, 8(%rdi)
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movq %rdx, 16(%rdi) # actually rsp
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movq %rbp, 24(%rdi)
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movq %r12, 32(%rdi)
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movq %r13, 40(%rdi)
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movq %r14, 48(%rdi)
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movq %r15, 56(%rdi)
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xorl %eax, %eax
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ret
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)"
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"\t" PREFIX "fastjmp_jmp:" R"(
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movl %esi, %eax
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movq 0(%rdi), %rdx # actually rip
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movq 8(%rdi), %rbx
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movq 16(%rdi), %rsp # actually rsp
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movq 24(%rdi), %rbp
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movq 32(%rdi), %r12
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movq 40(%rdi), %r13
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movq 48(%rdi), %r14
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movq 56(%rdi), %r15
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jmp *%rdx
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)");
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#elif defined(_M_X86_32)
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asm(
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"\t.global " PREFIX "fastjmp_set\n"
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"\t.global " PREFIX "fastjmp_jmp\n"
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"\t.text\n"
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"\t" PREFIX "fastjmp_set:" R"(
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movl %eax, 0(%esp)
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movl %esp, %edx # fixup stack pointer, so it doesn't include the call to fastjmp_set
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addl $4, %edx
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movl %eax, 0(%ecx) # actually eip
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movl %ebx, 4(%ecx)
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movl %edx, 8(%ecx) # actually esp
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movl %ebp, 12(%ecx)
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movl %esi, 16(%ecx)
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movl %edi, 20(%ecx)
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xorl %eax, %eax
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ret
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)"
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"\t" PREFIX "fastjmp_jmp:" R"(
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movl %edx, %eax
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movl 0(%ecx), %edx # actually eip
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movl 4(%ecx), %ebx
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movl 8(%ecx), %esp # actually esp
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movl 12(%ecx), %ebp
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movl 16(%ecx), %esi
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movl 20(%ecx), %edi
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jmp *%edx
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)");
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#endif
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#endif // __WIN32
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39
common/FastJmp.h
Normal file
39
common/FastJmp.h
Normal file
@ -0,0 +1,39 @@
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/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2021 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "Pcsx2Defs.h"
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#include <cstdint>
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#include <cstddef>
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struct fastjmp_buf
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{
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#if defined(_M_X86_64) && defined(_WIN32)
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static constexpr std::size_t BUF_SIZE = 240;
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#elif defined(_M_X86_64)
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static constexpr std::size_t BUF_SIZE = 64;
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#elif defined(_M_X86_32)
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static constexpr std::size_t BUF_SIZE = 24;
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#else
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#error Unknown architecture.
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#endif
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alignas(16) std::uint8_t buf[BUF_SIZE];
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};
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extern "C" {
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int __fastcall fastjmp_set(fastjmp_buf* buf);
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__noreturn void __fastcall fastjmp_jmp(const fastjmp_buf* buf, int ret);
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}
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@ -118,6 +118,7 @@ static const int __pagesize = PCSX2_PAGESIZE;
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#define __pagealigned __declspec(align(PCSX2_PAGESIZE))
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#define __noinline __declspec(noinline)
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#define __noreturn __declspec(noreturn)
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// Don't know if there are Visual C++ equivalents of these.
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#define likely(x) (!!(x))
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@ -161,6 +162,9 @@ static const int __pagesize = PCSX2_PAGESIZE;
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#ifndef __noinline
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#define __noinline __attribute__((noinline))
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#endif
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#ifndef __noreturn
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#define __noreturn __attribute__((noreturn))
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#endif
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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@ -15,7 +15,9 @@
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<UseDebugLibraries Condition="!$(Configuration.Contains(Debug))">false</UseDebugLibraries>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings" />
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<ImportGroup Label="ExtensionSettings">
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<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.props" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets">
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<Import Project="vsprops\CommonLibrary.props" />
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<Import Project="vsprops\3rdpartyDeps.props" />
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@ -43,6 +45,9 @@
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<ClCompile Include="Console.cpp" />
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<ClCompile Include="Exceptions.cpp" />
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<ClCompile Include="FastFormatString.cpp" />
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<ClCompile Include="FastJmp.cpp">
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<ExcludedFromBuild>true</ExcludedFromBuild>
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</ClCompile>
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<ClCompile Include="IniInterface.cpp" />
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<ClCompile Include="pxStreams.cpp" />
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<ClCompile Include="pxTranslate.cpp" />
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@ -83,10 +88,16 @@
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</ItemGroup>
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<ItemGroup>
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<None Include="EventSource.inl" />
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<MASM Include="FastJmp.asm">
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<FileType>Document</FileType>
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<PreprocessorDefinitions Condition="'$(Platform)'=='Win32'">_M_X86_32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<PreprocessorDefinitions Condition="'$(Platform)'=='x64'">_M_X86_64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</MASM>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="EmbeddedImage.h" />
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<ClInclude Include="boost_spsc_queue.hpp" />
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<ClInclude Include="FastJmp.h" />
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<ClInclude Include="ScopedAlloc.h" />
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<ClInclude Include="ThreadingInternal.h" />
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<ClInclude Include="Assertions.h" />
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@ -146,5 +157,7 @@
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</ProjectReference>
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets" />
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</Project>
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<ImportGroup Label="ExtensionTargets">
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<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.targets" />
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</ImportGroup>
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</Project>
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@ -118,6 +118,9 @@
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<ClCompile Include="emitter\x86emitter.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="FastJmp.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="Assertions.h">
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@ -264,6 +267,9 @@
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<ClInclude Include="StringHelpers.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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<ClInclude Include="FastJmp.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<Filter Include="Source Files">
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@ -278,4 +284,9 @@
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<Filter>Source Files</Filter>
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</None>
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</ItemGroup>
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</Project>
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<ItemGroup>
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<MASM Include="FastJmp.asm">
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<Filter>Source Files</Filter>
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</MASM>
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</ItemGroup>
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</Project>
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Block a user