mirror of
https://github.com/Mr-Wiseguy/N64Recomp.git
synced 2024-12-28 02:16:09 +00:00
Implemented initial set of instructions and ignored functions
This commit is contained in:
Mr-Wiseguy
parent
4b1dc14019
commit
8a0f0da0cc
3
.gitignore
vendored
3
.gitignore
vendored
|
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@ -4,6 +4,9 @@
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# Input elf files
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*.elf
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# Output C files
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out/
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# Linux build output
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build/
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*.o
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||||
|
|
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|||
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@ -22,6 +22,7 @@
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|||
<VCProjectVersion>16.0</VCProjectVersion>
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||||
<ProjectGuid>{23C26E84-DC01-43A6-B11B-0B4A2D79A5DD}</ProjectGuid>
|
||||
<Keyword>Win32Proj</Keyword>
|
||||
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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||||
|
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@ -75,8 +76,9 @@
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|||
<WarningLevel>Level3</WarningLevel>
|
||||
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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||||
<Optimization>Disabled</Optimization>
|
||||
<LanguageStandard>stdcpp17</LanguageStandard>
|
||||
<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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||||
<LanguageStandard>stdcpp20</LanguageStandard>
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||||
<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<OpenMPSupport>true</OpenMPSupport>
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</ClCompile>
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<Link>
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||||
<TargetMachine>MachineX86</TargetMachine>
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|
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@ -91,8 +93,9 @@
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<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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<WarningLevel>Level3</WarningLevel>
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||||
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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||||
<LanguageStandard>stdcpp17</LanguageStandard>
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<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<OpenMPSupport>true</OpenMPSupport>
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</ClCompile>
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<Link>
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||||
<TargetMachine>MachineX86</TargetMachine>
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@ -105,8 +108,9 @@
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<LanguageStandard>stdcpp17</LanguageStandard>
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<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<OpenMPSupport>true</OpenMPSupport>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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@ -115,8 +119,9 @@
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<LanguageStandard>stdcpp17</LanguageStandard>
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||||
<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<AdditionalIncludeDirectories>$(SolutionDir)lib\rabbitizer\include;$(SolutionDir)lib\rabbitizer\cplusplus\include;$(SolutionDir)lib\ELFIO;$(SolutionDir)lib\fmt\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<OpenMPSupport>true</OpenMPSupport>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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@ -133,8 +138,10 @@
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="src\main.cpp" />
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<ClCompile Include="src\recompilation.cpp" />
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="include\recomp_port.h" />
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<ClInclude Include="lib\ELFIO\elfio\elfio.hpp" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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@ -18,10 +18,16 @@
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<ClCompile Include="src\main.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="src\recompilation.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="lib\ELFIO\elfio\elfio.hpp">
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<Filter>Header Files</Filter>
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</ClInclude>
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<ClInclude Include="include\recomp_port.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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</ItemGroup>
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</Project>
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31
include/recomp_port.h
Normal file
31
include/recomp_port.h
Normal file
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@ -0,0 +1,31 @@
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#ifndef __RECOMP_PORT__
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#define __RECOMP_PORT__
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#include <span>
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#include <string_view>
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#include <cstdint>
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#ifdef _MSC_VER
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inline uint32_t byteswap(uint32_t val) {
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return _byteswap_ulong(val);
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}
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#else
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constexpr uint32_t byteswap(uint32_t val) {
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return __builtin_bswap32(val);
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}
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#endif
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namespace RecompPort {
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struct Function {
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uint32_t vram;
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uint32_t rom;
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const std::span<const uint32_t> words;
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std::string name;
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};
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bool recompile_function(const Function& func, std::string_view output_path);
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}
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#endif
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@ -133,15 +133,23 @@
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<LinkIncremental>true</LinkIncremental>
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<OutDir>$(SolutionDir)$(Configuration)\rabbitizer_build\</OutDir>
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<IntDir>$(Configuration)\rabbitizer_build\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<LinkIncremental>false</LinkIncremental>
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<OutDir>$(SolutionDir)$(Configuration)\rabbitizer_build\</OutDir>
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<IntDir>$(Configuration)\rabbitizer_build\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<LinkIncremental>true</LinkIncremental>
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<OutDir>$(SolutionDir)$(Platform)\$(Configuration)\rabbitizer_build\</OutDir>
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<IntDir>$(Platform)\$(Configuration)\rabbitizer_build\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<LinkIncremental>false</LinkIncremental>
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<OutDir>$(SolutionDir)$(Platform)\$(Configuration)\rabbitizer_build\</OutDir>
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<IntDir>$(Platform)\$(Configuration)\rabbitizer_build\</IntDir>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Link>
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||||
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@ -72,15 +72,23 @@
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<LinkIncremental>true</LinkIncremental>
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<OutDir>$(SolutionDir)$(Configuration)\fmtlib_build\</OutDir>
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<IntDir>$(Configuration)\fmtlib_build\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<LinkIncremental>false</LinkIncremental>
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<OutDir>$(SolutionDir)$(Configuration)\fmtlib_build\</OutDir>
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<IntDir>$(Configuration)\fmtlib_build\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<LinkIncremental>true</LinkIncremental>
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<OutDir>$(SolutionDir)$(Platform)\$(Configuration)\fmtlib_build\</OutDir>
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<IntDir>$(Platform)\$(Configuration)\fmtlib_build\</IntDir>
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||||
</PropertyGroup>
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||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<LinkIncremental>false</LinkIncremental>
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||||
<OutDir>$(SolutionDir)$(Platform)\$(Configuration)\fmtlib_build\</OutDir>
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<IntDir>$(Platform)\$(Configuration)\fmtlib_build\</IntDir>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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94
recomp.h
Normal file
94
recomp.h
Normal file
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@ -0,0 +1,94 @@
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#ifndef __RECOMP_H__
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#define __RECOMP_H__
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#include <stdint.h>
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#define ADD32(a, b) \
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((uint64_t)(int32_t)((a) + (b)))
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#define SUB32(a, b) \
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((uint64_t)(int32_t)((a) - (b)))
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#define MEM_D(offset, reg) \
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(*(int64_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define MEM_W(offset, reg) \
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(*(int32_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define MEM_H(offset, reg) \
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(*(int16_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define MEM_B(offset, reg) \
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(*(int8_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define MEM_HU(offset, reg) \
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(*(uint16_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define MEM_BU(offset, reg) \
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(*(uint8_t*)((rdram) + (((reg) + (offset)) ^ 3)))
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#define S32(val) \
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((int32_t)(val))
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#define U32(val) \
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((uint32_t)(val))
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#define S64(val) \
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((int64_t)(val))
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#define MUL_S(val1, val2) \
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((val1) * (val2))
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#define MUL_D(val1, val2) \
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((val1) * (val2))
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#define DIV_S(val1, val2) \
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((val1) / (val2))
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#define DIV_D(val1, val2) \
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((val1) / (val2))
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#define CVT_S_W(val) \
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((float)((int32_t)(val)))
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||||
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||||
#define CVT_D_W(val) \
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((double)((int32_t)(val)))
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|
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#define CVT_D_S(val) \
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((double)(val))
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#define CVT_S_D(val) \
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((float)(val))
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#define TRUNC_W_S(val) \
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((int32_t)(val))
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||||
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#define TRUNC_W_D(val) \
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((int32_t)(val))
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typedef uint64_t gpr;
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typedef union {
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double d;
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struct {
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float fl;
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float fh;
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};
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struct {
|
||||
uint32_t u32l;
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||||
uint32_t u32h;
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};
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uint64_t u64;
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} fpr;
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typedef struct {
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gpr r0, r1, r2, r3, r4, r5, r6, r7,
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r8, r9, r10, r11, r12, r13, r14, r15,
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r16, r17, r18, r19, r20, r21, r22, r23,
|
||||
r24, r25, r26, r27, r28, r29, r30, r31;
|
||||
fpr f0, f2, f4, f6, f8, f10, f12, f14,
|
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f16, f18, f20, f22, f24, f26, f28, f30;
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uint64_t hi, lo;
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} recomp_context;
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#endif
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327
src/main.cpp
327
src/main.cpp
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@ -1,17 +1,330 @@
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#include <cstdio>
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#include <cstdlib>
|
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#include <unordered_set>
|
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#include <span>
|
||||
|
||||
#include "rabbitizer.hpp"
|
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#include "elfio/elfio.hpp"
|
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#include "fmt/format.h"
|
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#include <cstdio>
|
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#include "recomp_port.h"
|
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|
||||
std::unordered_set<std::string> ignored_funcs {
|
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// OS initialize functions
|
||||
"__createSpeedParam",
|
||||
"__osInitialize_common",
|
||||
"__osInitialize_autodetect",
|
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"osInitialize",
|
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// Audio interface functions
|
||||
"osAiGetLength",
|
||||
"osAiGetStatus",
|
||||
"osAiSetFrequency",
|
||||
"osAiSetNextBuffer",
|
||||
"__osAiDeviceBusy",
|
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// Video interface functions
|
||||
"osViBlack",
|
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"osViFade",
|
||||
"osViGetCurrentField",
|
||||
"osViGetCurrentFramebuffer",
|
||||
"osViGetCurrentLine",
|
||||
"osViGetCurrentMode",
|
||||
"osViGetNextFramebuffer",
|
||||
"osViGetStatus",
|
||||
"osViRepeatLine",
|
||||
"osViSetEvent",
|
||||
"osViSetMode",
|
||||
"osViSetSpecialFeatures",
|
||||
"osViSetXScale",
|
||||
"osViSetYScale",
|
||||
"osViSwapBuffer",
|
||||
"osCreateViManager",
|
||||
"viMgrMain",
|
||||
"__osViInit",
|
||||
"__osViSwapContext",
|
||||
"__osViGetCurrentContext",
|
||||
// RDP functions
|
||||
"osDpGetCounters",
|
||||
"osDpSetStatus",
|
||||
"osDpGetStatus",
|
||||
"osDpSetNextBuffer",
|
||||
"__osDpDeviceBusy",
|
||||
// RSP functions
|
||||
"osSpTaskLoad",
|
||||
"osSpTaskStartGo",
|
||||
"osSpTaskYield",
|
||||
"osSpTaskYielded",
|
||||
"__osSpDeviceBusy",
|
||||
"__osSpGetStatus",
|
||||
"__osSpRawStartDma",
|
||||
"__osSpRawReadIo",
|
||||
"__osSpRawWriteIo",
|
||||
"__osSpSetPc",
|
||||
"__osSpSetStatus",
|
||||
// Controller functions
|
||||
"osContGetQuery",
|
||||
"osContGetReadData",
|
||||
"osContInit",
|
||||
"osContReset",
|
||||
"osContSetCh",
|
||||
"osContStartQuery",
|
||||
"osContStartReadData",
|
||||
"__osContAddressCrc",
|
||||
"__osContDataCrc",
|
||||
"__osContGetInitData",
|
||||
"__osContRamRead",
|
||||
"__osContRamWrite",
|
||||
// EEPROM functions
|
||||
"osEepromLongRead",
|
||||
"osEepromLongWrite",
|
||||
"osEepromProbe",
|
||||
"osEepromRead",
|
||||
"osEepromWrite",
|
||||
"__osEepStatus",
|
||||
// Rumble functions
|
||||
"osMotorInit",
|
||||
"osMotorStart",
|
||||
"osMotorStop",
|
||||
// PFS functions
|
||||
"osPfsAllocateFile",
|
||||
"osPfsChecker",
|
||||
"osPfsDeleteFile",
|
||||
"osPfsFileState",
|
||||
"osPfsFindFile",
|
||||
"osPfsFreeBlocks",
|
||||
"osPfsGetLabel",
|
||||
"osPfsInit",
|
||||
"osPfsInitPak",
|
||||
"osPfsIsPlug",
|
||||
"osPfsNumFiles",
|
||||
"osPfsRepairId",
|
||||
"osPfsReadWriteFile",
|
||||
"__osPackEepReadData",
|
||||
"__osPackEepWriteData",
|
||||
"__osPackRamReadData",
|
||||
"__osPackRamWriteData",
|
||||
"__osPackReadData",
|
||||
"__osPackRequestData",
|
||||
"__osPfsGetInitData",
|
||||
"__osPfsGetOneChannelData",
|
||||
"__osPfsGetStatus",
|
||||
"__osPfsRequestData",
|
||||
"__osPfsRequestOneChannel",
|
||||
"__osPfsCreateAccessQueue",
|
||||
// Low level serial interface functions
|
||||
"__osSiDeviceBusy",
|
||||
"__osSiGetStatus",
|
||||
"__osSiRawStartDma",
|
||||
"__osSiRawReadIo",
|
||||
"__osSiRawWriteIo",
|
||||
"__osSiCreateAccessQueue",
|
||||
"__osSiGetAccess",
|
||||
"__osSiRelAccess",
|
||||
// Parallel interface (cartridge, DMA, etc.) functions
|
||||
"osCartRomInit",
|
||||
"osLeoDiskInit",
|
||||
"osCreatePiManager",
|
||||
"__osDevMgrMain",
|
||||
"osPiGetCmdQueue",
|
||||
"osPiGetStatus",
|
||||
"osPiReadIo",
|
||||
"osPiStartDma",
|
||||
"osPiWriteIo",
|
||||
"osEPiGetDeviceType",
|
||||
"osEPiStartDma",
|
||||
"osEPiWriteIo",
|
||||
"osEPiReadIo",
|
||||
"osPiRawStartDma",
|
||||
"osPiRawReadIo",
|
||||
"osPiRawWriteIo",
|
||||
"osEPiRawStartDma",
|
||||
"osEPiRawReadIo",
|
||||
"osEPiRawWriteIo",
|
||||
"__osPiRawStartDma",
|
||||
"__osPiRawReadIo",
|
||||
"__osPiRawWriteIo",
|
||||
"__osEPiRawStartDma",
|
||||
"__osEPiRawReadIo",
|
||||
"__osEPiRawWriteIo",
|
||||
"__osPiDeviceBusy",
|
||||
"__osPiCreateAccessQueue",
|
||||
"__osPiGetAccess",
|
||||
"__osPiRelAccess",
|
||||
"__osLeoAbnormalResume",
|
||||
"__osLeoInterrupt",
|
||||
"__osLeoResume",
|
||||
// Threading functions
|
||||
"osCreateThread",
|
||||
"osStartThread",
|
||||
"osStopThread",
|
||||
"osDestroyThread",
|
||||
"osYieldThread",
|
||||
"osSetThreadPri",
|
||||
"osGetThreadPri",
|
||||
"osGetThreadId",
|
||||
"__osDequeueThread",
|
||||
// Message Queue functions
|
||||
"osCreateMesgQueue",
|
||||
"osSendMesg",
|
||||
"osJamMesg",
|
||||
"osRecvMesg",
|
||||
"osSetEventMesg",
|
||||
// Timer functions
|
||||
"osStartTimer",
|
||||
"osSetTimer",
|
||||
"osStopTimer",
|
||||
"__osInsertTimer",
|
||||
"__osTimerInterrupt",
|
||||
"__osTimerServicesInit",
|
||||
"__osSetTimerIntr",
|
||||
// exceptasm functions
|
||||
"__osExceptionPreamble",
|
||||
"__osException",
|
||||
"send_mesg",
|
||||
"handle_CpU",
|
||||
"__osEnqueueAndYield",
|
||||
"__osEnqueueThread",
|
||||
"__osPopThread",
|
||||
"__osNop",
|
||||
"__osDispatchThread",
|
||||
"__osCleanupThread",
|
||||
"osGetCurrFaultedThread",
|
||||
"osGetNextFaultedThread",
|
||||
// interrupt functions
|
||||
"osSetIntMask",
|
||||
"osGetIntMask",
|
||||
"__osDisableInt",
|
||||
"__osRestoreInt",
|
||||
"__osSetGlobalIntMask",
|
||||
"__osResetGlobalIntMask",
|
||||
// TLB functions
|
||||
"osMapTLB",
|
||||
"osUnmapTLB",
|
||||
"osUnmapTLBAll",
|
||||
"osSetTLBASID",
|
||||
"osMapTLBRdb",
|
||||
"osVirtualToPhysical",
|
||||
"__osGetTLBHi",
|
||||
"__osGetTLBLo0",
|
||||
"__osGetTLBLo1",
|
||||
"__osGetTLBPageMask",
|
||||
"__osGetTLBASID",
|
||||
"__osProbeTLB",
|
||||
// Coprocessor 0 functions
|
||||
"__osSetCount",
|
||||
"osGetCount",
|
||||
"__osSetSR",
|
||||
"__osGetSR",
|
||||
"__osSetCause",
|
||||
"__osGetCause",
|
||||
"__osSetCompare",
|
||||
"__osGetCompare",
|
||||
"__osSetConfig",
|
||||
"__osGetConfig",
|
||||
"__osSetWatchLo",
|
||||
"__osGetWatchLo",
|
||||
};
|
||||
|
||||
int main(int argc, char** argv) {
|
||||
uint32_t word = 0x8D4A7E18; // lw
|
||||
uint32_t vram = 0x80000000;
|
||||
int extraLJust = 5;
|
||||
rabbitizer::InstructionCpu instr(word, vram);
|
||||
if (argc != 2) {
|
||||
fmt::print("Usage: {} [input elf file]\n", argv[0]);
|
||||
std::exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
fmt::print("{}\n", instr.isBranch());
|
||||
fmt::print("{:08X}: {}\n", word, instr.disassemble(extraLJust));
|
||||
ELFIO::elfio elf_file;
|
||||
|
||||
auto exit_failure = [] (const std::string& error_str) {
|
||||
fmt::print(stderr, error_str);
|
||||
std::exit(EXIT_FAILURE);
|
||||
};
|
||||
|
||||
if (!elf_file.load(argv[1])) {
|
||||
exit_failure("Failed to load provided elf file\n");
|
||||
}
|
||||
|
||||
if (elf_file.get_class() != ELFIO::ELFCLASS32) {
|
||||
exit_failure("Incorrect elf class\n");
|
||||
}
|
||||
|
||||
if (elf_file.get_encoding() != ELFIO::ELFDATA2MSB) {
|
||||
exit_failure("Incorrect endianness\n");
|
||||
}
|
||||
|
||||
// Pointer to the symbol table section
|
||||
ELFIO::section* symtab_section = nullptr;
|
||||
// Size of the ROM as determined by the elf
|
||||
ELFIO::Elf_Xword rom_size = 0;
|
||||
// ROM address of each section
|
||||
std::vector<ELFIO::Elf_Xword> section_rom_addrs{};
|
||||
section_rom_addrs.resize(elf_file.sections.size());
|
||||
|
||||
// Iterate over every section to record rom addresses and find the symbol table
|
||||
fmt::print("Sections\n");
|
||||
for (const std::unique_ptr<ELFIO::section>& section : elf_file.sections) {
|
||||
fmt::print(" {}: {} @ 0x{:08X}, 0x{:08X}\n", section->get_index(), section->get_name(), section->get_address(), rom_size);
|
||||
// Set the rom address of this section to the current accumulated ROM size
|
||||
section_rom_addrs[section->get_index()] = rom_size;
|
||||
// If this section isn't bss (SHT_NOBITS) and ends up in the rom (SHF_ALLOC), increase the rom size by this section's size
|
||||
if (section->get_type() != ELFIO::SHT_NOBITS && section->get_flags() & ELFIO::SHF_ALLOC) {
|
||||
rom_size += section->get_size();
|
||||
}
|
||||
// Check if this section is the symbol table and record it if so
|
||||
if (section->get_type() == ELFIO::SHT_SYMTAB) {
|
||||
symtab_section = section.get();
|
||||
}
|
||||
}
|
||||
|
||||
// If no symbol table was found then exit
|
||||
if (symtab_section == nullptr) {
|
||||
exit_failure("No symbol section found\n");
|
||||
}
|
||||
|
||||
ELFIO::symbol_section_accessor symbols{ elf_file, symtab_section };
|
||||
|
||||
fmt::print("Num symbols: {}\n", symbols.get_symbols_num());
|
||||
|
||||
std::vector<RecompPort::Function> functions{};
|
||||
functions.reserve(1024);
|
||||
|
||||
for (int sym_index = 0; sym_index < symbols.get_symbols_num(); sym_index++) {
|
||||
std::string name;
|
||||
ELFIO::Elf64_Addr value;
|
||||
ELFIO::Elf_Xword size;
|
||||
unsigned char bind;
|
||||
unsigned char type;
|
||||
ELFIO::Elf_Half section_index;
|
||||
unsigned char other;
|
||||
|
||||
// Read symbol properties
|
||||
symbols.get_symbol(sym_index, name, value, size, bind, type,
|
||||
section_index, other);
|
||||
|
||||
// Check if this symbol is a function
|
||||
if (type == ELFIO::STT_FUNC) {
|
||||
auto section_rom_addr = section_rom_addrs[section_index];
|
||||
auto section_offset = value - elf_file.sections[section_index]->get_address();
|
||||
const uint32_t* words = reinterpret_cast<const uint32_t*>(elf_file.sections[section_index]->get_data() + section_offset);
|
||||
functions.emplace_back(
|
||||
static_cast<uint32_t>(value),
|
||||
static_cast<uint32_t>(section_offset + section_rom_addr),
|
||||
std::span{ reinterpret_cast<const uint32_t*>(words), size / 4 },
|
||||
std::move(name)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
fmt::print("Function count: {}\n", functions.size());
|
||||
|
||||
//#pragma omp parallel for
|
||||
for (size_t i = 0; i < functions.size(); i++) {
|
||||
const auto& func = functions[i];
|
||||
if (!ignored_funcs.contains(func.name)) {
|
||||
if (RecompPort::recompile_function(func, "out/" + func.name + ".c") == false) {
|
||||
fmt::print(stderr, "Error recompiling {}\n", func.name);
|
||||
std::exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
}
|
||||
//RecompPort::recompile_function(functions.back(), "test.c");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
719
src/recompilation.cpp
Normal file
719
src/recompilation.cpp
Normal file
|
|
@ -0,0 +1,719 @@
|
|||
#include <vector>
|
||||
#include <set>
|
||||
|
||||
#include "rabbitizer.hpp"
|
||||
#include "fmt/format.h"
|
||||
#include "fmt/ostream.h"
|
||||
|
||||
#include "recomp_port.h"
|
||||
|
||||
using InstrId = rabbitizer::InstrId::UniqueId;
|
||||
|
||||
std::string_view ctx_gpr_prefix(int reg) {
|
||||
if (reg != 0) {
|
||||
return "ctx->r";
|
||||
}
|
||||
return "";
|
||||
}
|
||||
|
||||
bool process_instruction(size_t instr_index, const std::vector<rabbitizer::InstructionCpu>& instructions, std::ofstream& output_file, bool indent, bool emit_link_branch, int link_branch_index, bool& needs_link_branch, bool& is_branch_likely) {
|
||||
const auto& instr = instructions[instr_index];
|
||||
needs_link_branch = false;
|
||||
is_branch_likely = false;
|
||||
|
||||
// Output a comment with the original instruction
|
||||
if (instr.isBranch() || instr.getUniqueId() == InstrId::cpu_j) {
|
||||
fmt::print(output_file, " // {}\n", instr.disassemble(0, fmt::format("L_{:08X}", (uint32_t)instr.getBranchVramGeneric())));
|
||||
} else if (instr.getUniqueId() == InstrId::cpu_jal) {
|
||||
fmt::print(output_file, " // {}\n", instr.disassemble(0, "func"));
|
||||
} else {
|
||||
fmt::print(output_file, " // {}\n", instr.disassemble(0));
|
||||
}
|
||||
|
||||
auto print_indent = [&]() {
|
||||
fmt::print(output_file, " ");
|
||||
};
|
||||
|
||||
auto print_line = [&]<typename... Ts>(fmt::format_string<Ts...> fmt_str, Ts ...args) {
|
||||
print_indent();
|
||||
fmt::print(output_file, fmt_str, args...);
|
||||
fmt::print(output_file, ";\n");
|
||||
};
|
||||
|
||||
auto print_branch_condition = [&]<typename... Ts>(fmt::format_string<Ts...> fmt_str, Ts ...args) {
|
||||
fmt::print(output_file, fmt_str, args...);
|
||||
fmt::print(output_file, " ");
|
||||
};
|
||||
|
||||
auto print_branch = [&]<typename... Ts>(fmt::format_string<Ts...> fmt_str, Ts ...args) {
|
||||
fmt::print(output_file, "{{\n ");
|
||||
if (instr_index < instructions.size() - 1) {
|
||||
bool dummy_needs_link_branch;
|
||||
bool dummy_is_branch_likely;
|
||||
process_instruction(instr_index + 1, instructions, output_file, true, false, link_branch_index, dummy_needs_link_branch, dummy_is_branch_likely);
|
||||
}
|
||||
fmt::print(output_file, " ");
|
||||
fmt::print(output_file, fmt_str, args...);
|
||||
if (needs_link_branch) {
|
||||
fmt::print(output_file, ";\n goto after_{}", link_branch_index);
|
||||
}
|
||||
fmt::print(output_file, ";\n }}\n");
|
||||
};
|
||||
|
||||
if (indent) {
|
||||
print_indent();
|
||||
}
|
||||
|
||||
int rd = (int)instr.GetO32_rd();
|
||||
int rs = (int)instr.GetO32_rs();
|
||||
int base = rs;
|
||||
int rt = (int)instr.GetO32_rt();
|
||||
int sa = (int)instr.Get_sa();
|
||||
|
||||
int fd = (int)instr.GetO32_fd();
|
||||
int fs = (int)instr.GetO32_fs();
|
||||
int ft = (int)instr.GetO32_ft();
|
||||
|
||||
uint16_t imm = instr.Get_immediate();
|
||||
|
||||
switch (instr.getUniqueId()) {
|
||||
case InstrId::cpu_nop:
|
||||
fmt::print(output_file, "\n");
|
||||
break;
|
||||
// Arithmetic
|
||||
case InstrId::cpu_lui:
|
||||
print_line("{}{} = {:#X} << 16", ctx_gpr_prefix(rt), rt, imm);
|
||||
break;
|
||||
case InstrId::cpu_addu:
|
||||
print_line("{}{} = ADD32({}{}, {}{})", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_negu: // pseudo instruction for subu x, 0, y
|
||||
case InstrId::cpu_subu:
|
||||
print_line("{}{} = SUB32({}{}, {}{})", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_addiu:
|
||||
print_line("{}{} = ADD32({}{}, {:#X})", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, (int16_t)imm);
|
||||
break;
|
||||
case InstrId::cpu_and:
|
||||
print_line("{}{} = {}{} & {}{}", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_andi:
|
||||
print_line("{}{} = {}{} & {:#X}", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, imm);
|
||||
break;
|
||||
case InstrId::cpu_or:
|
||||
print_line("{}{} = {}{} | {}{}", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_ori:
|
||||
print_line("{}{} = {}{} | {:#X}", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, imm);
|
||||
break;
|
||||
case InstrId::cpu_nor:
|
||||
print_line("{}{} = ~({}{} | {}{})", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_xor:
|
||||
print_line("{}{} = {}{} ^ {}{}", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_xori:
|
||||
print_line("{}{} = {}{} ^ {:#X}", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, imm);
|
||||
break;
|
||||
case InstrId::cpu_sll:
|
||||
print_line("{}{} = S32({}{}) << {}", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, sa);
|
||||
break;
|
||||
case InstrId::cpu_sllv:
|
||||
print_line("{}{} = S32({}{}) << ({}{} & 31)", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs);
|
||||
break;
|
||||
case InstrId::cpu_sra:
|
||||
print_line("{}{} = S32(S64({}{}) >> {})", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, sa);
|
||||
break;
|
||||
case InstrId::cpu_srav:
|
||||
print_line("{}{} = S32(S64({}{}) >> ({}{} & 31)", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs);
|
||||
break;
|
||||
case InstrId::cpu_srl:
|
||||
print_line("{}{} = S32(U32({}{}) >> {})", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, sa);
|
||||
break;
|
||||
case InstrId::cpu_srlv:
|
||||
print_line("{}{} = S32(U32({}{}) >> ({}{} & 31)", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs);
|
||||
break;
|
||||
case InstrId::cpu_slt:
|
||||
print_line("{}{} = S64({}{}) < S64({}{}) ? 1 : 0", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_slti:
|
||||
print_line("{}{} = S64({}{}) < {:#X} ? 1 : 0", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, (int16_t)imm);
|
||||
break;
|
||||
case InstrId::cpu_sltu:
|
||||
print_line("{}{} = U64({}{}) < U64({}{}) ? 1 : 0", ctx_gpr_prefix(rd), rd, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_sltiu:
|
||||
print_line("{}{} = U64({}{}) < {:#X} ? 1 : 0", ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, (int16_t)imm);
|
||||
break;
|
||||
case InstrId::cpu_mult:
|
||||
print_line("uint64_t result = S64({}{}) * S64({}{}); lo = S32(result >> 0); hi = S32(result >> 32)", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_multu:
|
||||
print_line("uint64_t result = {}{} * {}{}; lo = S32(result >> 0); hi = S32(result >> 32)", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_div:
|
||||
print_line("lo = S32(S64({}{}) / S64({}{})); hi = S32(S64({}{}) % S64({}{}))", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_divu:
|
||||
print_line("lo = S32(U32({}{}) / U32({}{})); hi = S32(U32({}{}) % U32({}{}))", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt, ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_mflo:
|
||||
print_line("{}{} = lo", ctx_gpr_prefix(rd), rd);
|
||||
break;
|
||||
case InstrId::cpu_mfhi:
|
||||
print_line("{}{} = hi", ctx_gpr_prefix(rd), rd);
|
||||
break;
|
||||
// Loads
|
||||
// TODO ld
|
||||
case InstrId::cpu_lw:
|
||||
print_line("{}{} = MEM_W({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_lh:
|
||||
print_line("{}{} = MEM_H({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_lb:
|
||||
print_line("{}{} = MEM_B({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_lhu:
|
||||
print_line("{}{} = MEM_HU({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_lbu:
|
||||
print_line("{}{} = MEM_BU({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
// Stores
|
||||
case InstrId::cpu_sw:
|
||||
print_line("MEM_W({:#X}, {}{}) = {}{}", (int16_t)imm, ctx_gpr_prefix(base), base, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_sh:
|
||||
print_line("MEM_H({:#X}, {}{}) = {}{}", (int16_t)imm, ctx_gpr_prefix(base), base, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_sb:
|
||||
print_line("MEM_B({:#X}, {}{}) = {}{}", (int16_t)imm, ctx_gpr_prefix(base), base, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
// TODO lwl, lwr
|
||||
// examples:
|
||||
// reg = 11111111 01234567
|
||||
// mem @ x = 89ABCDEF
|
||||
|
||||
// LWL x + 0 -> FFFFFFFF 89ABCDEF
|
||||
// LWL x + 1 -> FFFFFFFF ABCDEF67
|
||||
// LWL x + 2 -> FFFFFFFF CDEF4567
|
||||
// LWL x + 3 -> FFFFFFFF EF234567
|
||||
|
||||
// LWR x + 0 -> 00000000 01234589
|
||||
// LWR x + 1 -> 00000000 012389AB
|
||||
// LWR x + 2 -> 00000000 0189ABCD
|
||||
// LWR x + 3 -> FFFFFFFF 89ABCDEF
|
||||
case InstrId::cpu_lwl:
|
||||
print_line("{}{} = MEM_WL({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_lwr:
|
||||
print_line("{}{} = MEM_WR({:#X}, {}{})", ctx_gpr_prefix(rt), rt, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
break;
|
||||
case InstrId::cpu_swl:
|
||||
print_line("MEM_WL({:#X}, {}{}) = {}{}", (int16_t)imm, ctx_gpr_prefix(base), base, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
case InstrId::cpu_swr:
|
||||
print_line("MEM_WR({:#X}, {}{}) = {}{}", (int16_t)imm, ctx_gpr_prefix(base), base, ctx_gpr_prefix(rt), rt);
|
||||
break;
|
||||
|
||||
// Branches
|
||||
case InstrId::cpu_jal:
|
||||
needs_link_branch = true;
|
||||
print_indent();
|
||||
// TODO lookup function name
|
||||
print_branch("{}(rdram, ctx)", "func");
|
||||
break;
|
||||
case InstrId::cpu_jalr:
|
||||
needs_link_branch = true;
|
||||
print_indent();
|
||||
// TODO index global function table
|
||||
print_branch("{}(rdram, ctx)", "func_reg");
|
||||
break;
|
||||
case InstrId::cpu_j:
|
||||
case InstrId::cpu_b:
|
||||
print_indent();
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_jr:
|
||||
print_indent();
|
||||
if (rs == (int)rabbitizer::Registers::Cpu::GprO32::GPR_O32_ra) {
|
||||
print_branch("return");
|
||||
} else {
|
||||
// TODO jump table handling
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_bnel:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bne:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) != S32({}{}))", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_beql:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_beq:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) == S32({}{}))", ctx_gpr_prefix(rs), rs, ctx_gpr_prefix(rt), rt);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_bnez:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) != 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_beqz:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) == 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_bgezl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bgez:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) >= 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_bgtzl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bgtz:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) > 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_blezl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_blez:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) <= 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_bltzl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bltz:
|
||||
print_indent();
|
||||
print_branch_condition("if (S32({}{}) < 0)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_break:
|
||||
print_line("do_break();");
|
||||
break;
|
||||
|
||||
// Cop1 loads/stores
|
||||
case InstrId::cpu_mtc1:
|
||||
if ((fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.u32l = {}{}", fs, ctx_gpr_prefix(rt), rt);
|
||||
}
|
||||
else {
|
||||
// odd fpr
|
||||
print_line("ctx->f{}.u32h = {}{}", fs - 1, ctx_gpr_prefix(rt), rt);
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_mfc1:
|
||||
if ((fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("{}{} = ctx->f{}.u32l", ctx_gpr_prefix(rt), rt, fs);
|
||||
} else {
|
||||
// odd fpr
|
||||
print_line("{}{} = ctx->f{}.u32h", ctx_gpr_prefix(rt), rt, fs - 1);
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_lwc1:
|
||||
if ((ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.u32l = MEM_W({:#X}, {}{})", ft, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
} else {
|
||||
// odd fpr
|
||||
print_line("ctx->f{}.u32h = MEM_W({:#X}, {}{})", ft - 1, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_ldc1:
|
||||
if ((ft & 1) == 0) {
|
||||
print_line("ctx->f{}.u64 = MEM_D({:#X}, {}{})", ft, (int16_t)imm, ctx_gpr_prefix(base), base);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for ldc1: f{}\n", ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_swc1:
|
||||
if ((ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("MEM_W({:#X}, {}{}) = ctx->f{}.u32l", (int16_t)imm, ctx_gpr_prefix(base), base, ft);
|
||||
} else {
|
||||
// odd fpr
|
||||
print_line("MEM_W({:#X}, {}{}) = ctx->f{}.u32h", (int16_t)imm, ctx_gpr_prefix(base), base, ft - 1);
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_sdc1:
|
||||
if ((ft & 1) == 0) {
|
||||
print_line("MEM_D({:#X}, {}{}) = ctx->f{}.u64", (int16_t)imm, ctx_gpr_prefix(base), base, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for sdc1: f{}\n", ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
|
||||
// Cop1 compares
|
||||
case InstrId::cpu_c_lt_s:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.fl <= ctx->f{}.fl", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.lt.s: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_c_lt_d:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.d <= ctx->f{}.d", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.lt.d: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_c_le_s:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.fl <= ctx->f{}.fl", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.le.s: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_c_le_d:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.d <= ctx->f{}.d", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.le.d: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_c_eq_s:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.fl == ctx->f{}.fl", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.eq.s: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_c_eq_d:
|
||||
if ((fs & 1) == 0 && (ft & 1) == 0) {
|
||||
print_line("c1cs = ctx->f{}.d == ctx->f{}.d", fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand for c.eq.d: f{} f{}\n", fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
|
||||
// Cop1 branches
|
||||
case InstrId::cpu_bc1tl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bc1t:
|
||||
print_indent();
|
||||
print_branch_condition("if (c1cs)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
case InstrId::cpu_bc1fl:
|
||||
is_branch_likely = true;
|
||||
[[fallthrough]];
|
||||
case InstrId::cpu_bc1f:
|
||||
print_indent();
|
||||
print_branch_condition("if (!c1cs)", ctx_gpr_prefix(rs), rs);
|
||||
print_branch("goto L_{:08X}", (uint32_t)instr.getBranchVramGeneric());
|
||||
break;
|
||||
|
||||
// Cop1 arithmetic
|
||||
case InstrId::cpu_mov_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = ctx->f{}.fl", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for mov.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_mov_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = ctx->f{}.d", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for mov.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_neg_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = -ctx->f{}.fl", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for neg.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_neg_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = -ctx->f{}.d", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for neg.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_abs_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = fabsf(ctx->f{}.fl)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for abs.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_abs_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = fabs(ctx->f{}.d)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for abs.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_sqrt_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = sqrtf(ctx->f{}.fl)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for sqrt.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_sqrt_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = sqrt(ctx->f{}.d)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for sqrt.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_add_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = ctx->f{}.fl + ctx->f{}.fl", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for add.s: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_add_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = ctx->f{}.d + ctx->f{}.d", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for add.d: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_sub_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = ctx->f{}.fl - ctx->f{}.fl", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for sub.s: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_sub_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = ctx->f{}.d - ctx->f{}.d", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for sub.d: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_mul_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = MUL_S(ctx->f{}.fl, ctx->f{}.fl)", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for mul.s: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_mul_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = MUL_D(ctx->f{}.d, ctx->f{}.d)", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for mul.d: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_div_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = DIV_S(ctx->f{}.fl, ctx->f{}.fl)", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for div.s: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_div_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0 && (ft & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = DIV_D(ctx->f{}.d, ctx->f{}.d)", fd, fs, ft);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for div.d: f{} f{} f{}\n", fd, fs, ft);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_cvt_s_w:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = CVT_S_W(ctx->f{}.u32l)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for cvt.s.w: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_cvt_d_w:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = CVT_D_W(ctx->f{}.u32l)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for cvt.d.w: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_cvt_d_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.d = CVT_D_S(ctx->f{}.fl)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for cvt.d.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_cvt_s_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.fl = CVT_S_D(ctx->f{}.d)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for cvt.s.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_trunc_w_s:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.u32l = TRUNC_W_S(ctx->f{}.fl)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for trunc.w.s: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
case InstrId::cpu_trunc_w_d:
|
||||
if ((fd & 1) == 0 && (fs & 1) == 0) {
|
||||
// even fpr
|
||||
print_line("ctx->f{}.u32l = TRUNC_W_D(ctx->f{}.d)", fd, fs);
|
||||
} else {
|
||||
fmt::print(stderr, "Invalid operand(s) for trunc.w.d: f{} f{}\n", fd, fs);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
fmt::print(stderr, "Unhandled instruction: {}\n", instr.getOpcodeName());
|
||||
return false;
|
||||
}
|
||||
|
||||
if (emit_link_branch) {
|
||||
fmt::print(output_file, " after_{}:\n", link_branch_index);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool RecompPort::recompile_function(const RecompPort::Function& func, std::string_view output_path) {
|
||||
fmt::print("Recompiling {}\n", func.name);
|
||||
std::vector<rabbitizer::InstructionCpu> instructions;
|
||||
|
||||
// Open the output file and write the file header
|
||||
std::ofstream output_file{ output_path.data() };
|
||||
fmt::print(output_file,
|
||||
"#include \"recomp.h\"\n"
|
||||
"\n"
|
||||
"void {}(uint8_t* restrict rdram, recomp_context* restrict ctx) {{\n"
|
||||
// these variables shouldn't need to be preserved across function boundaries, so make them local for more efficient output
|
||||
" uint64_t hi = 0, lo = 0;\n"
|
||||
" int c1cs = 0; \n", // cop1 conditional signal
|
||||
func.name);
|
||||
|
||||
// Use a set to sort and deduplicate labels
|
||||
std::set<uint32_t> branch_labels;
|
||||
instructions.reserve(func.words.size());
|
||||
|
||||
// First pass, disassemble each instruction and collect branch labels
|
||||
uint32_t vram = func.vram;
|
||||
for (uint32_t word : func.words) {
|
||||
const auto& instr = instructions.emplace_back(byteswap(word), vram);
|
||||
|
||||
// If this is a branch or a direct jump, add it to the local label list
|
||||
if (instr.isBranch() || instr.getUniqueId() == rabbitizer::InstrId::UniqueId::cpu_j) {
|
||||
branch_labels.insert((uint32_t)instr.getBranchVramGeneric());
|
||||
}
|
||||
|
||||
// Advance the vram address by the size of one instruction
|
||||
vram += 4;
|
||||
}
|
||||
|
||||
// Second pass, emit code for each instruction and emit labels
|
||||
auto cur_label = branch_labels.cbegin();
|
||||
vram = func.vram;
|
||||
int num_link_branches = 0;
|
||||
int num_likely_branches = 0;
|
||||
bool needs_link_branch = false;
|
||||
bool in_likely_delay_slot = false;
|
||||
for (size_t instr_index = 0; instr_index < instructions.size(); ++instr_index) {
|
||||
bool had_link_branch = needs_link_branch;
|
||||
bool is_branch_likely = false;
|
||||
// If we're in the delay slot of a likely instruction, emit a goto to skip the instruction before any labels
|
||||
if (in_likely_delay_slot) {
|
||||
fmt::print(output_file, " goto skip_{};\n", num_likely_branches);
|
||||
}
|
||||
// If there are any other branch labels to insert and we're at the next one, insert it
|
||||
if (cur_label != branch_labels.end() && vram >= *cur_label) {
|
||||
fmt::print(output_file, "L_{:08X}:\n", *cur_label);
|
||||
++cur_label;
|
||||
}
|
||||
// Process the current instruction and check for errors
|
||||
if (process_instruction(instr_index, instructions, output_file, false, needs_link_branch, num_link_branches, needs_link_branch, is_branch_likely) == false) {
|
||||
fmt::print(stderr, "Error in recompilation, clearing {}\n", output_path);
|
||||
output_file.clear();
|
||||
return false;
|
||||
}
|
||||
// If a link return branch was generated, advance the number of link return branches
|
||||
if (had_link_branch) {
|
||||
num_link_branches++;
|
||||
}
|
||||
// Now that the instruction has been processed, emit a skip label for the likely branch if needed
|
||||
if (in_likely_delay_slot) {
|
||||
fmt::print(output_file, " skip_{}:\n", num_likely_branches);
|
||||
num_likely_branches++;
|
||||
}
|
||||
// Mark the next instruction as being in a likely delay slot if the
|
||||
in_likely_delay_slot = is_branch_likely;
|
||||
// Advance the vram address by the size of one instruction
|
||||
vram += 4;
|
||||
}
|
||||
|
||||
// Terminate the function
|
||||
fmt::print(output_file, "}}\n");
|
||||
|
||||
return true;
|
||||
}
|
||||
Loading…
Reference in a new issue