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RSP: Add clamp16

This commit is contained in:
zilmar 2023-09-07 11:31:31 +09:30
parent af1c0c2b55
commit 0cadbe0f70
5 changed files with 38 additions and 0 deletions
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2
Source/Project64-rsp-core/Project64-rsp-core.vcxproj
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@ -40,6 +40,7 @@
</ClCompile> </ClCompile>
</ItemDefinitionGroup> </ItemDefinitionGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="cpu\RspClamp.cpp" />
<ClCompile Include="cpu\RSPCpu.cpp" /> <ClCompile Include="cpu\RSPCpu.cpp" />
<ClCompile Include="cpu\RspDma.cpp" /> <ClCompile Include="cpu\RspDma.cpp" />
<ClCompile Include="cpu\RSPiInstruction.cpp" /> <ClCompile Include="cpu\RSPiInstruction.cpp" />
@ -62,6 +63,7 @@
<ClCompile Include="Settings\RspSettings.cpp" /> <ClCompile Include="Settings\RspSettings.cpp" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="cpu\RspClamp.h" />
<ClInclude Include="cpu\RSPCpu.h" /> <ClInclude Include="cpu\RSPCpu.h" />
<ClInclude Include="cpu\RspDma.h" /> <ClInclude Include="cpu\RspDma.h" />
<ClInclude Include="cpu\RSPInstruction.h" /> <ClInclude Include="cpu\RSPInstruction.h" />

6
Source/Project64-rsp-core/Project64-rsp-core.vcxproj.filters
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@ -93,6 +93,9 @@
<ClCompile Include="cpu\RspDma.cpp"> <ClCompile Include="cpu\RspDma.cpp">
<Filter>Source Files\cpu</Filter> <Filter>Source Files\cpu</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="cpu\RspClamp.cpp">
<Filter>Source Files\cpu</Filter>
</ClCompile>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="cpu\RSPInstruction.h"> <ClInclude Include="cpu\RSPInstruction.h">
@ -149,5 +152,8 @@
<ClInclude Include="cpu\RspDma.h"> <ClInclude Include="cpu\RspDma.h">
<Filter>Header Files\cpu</Filter> <Filter>Header Files\cpu</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="cpu\RspClamp.h">
<Filter>Header Files\cpu</Filter>
</ClInclude>
</ItemGroup> </ItemGroup>
</Project> </Project>

1
Source/Project64-rsp-core/cpu/RSPInterpreterOps.cpp
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@ -6,6 +6,7 @@
#include <Project64-rsp-core/RSPDebugger.h> #include <Project64-rsp-core/RSPDebugger.h>
#include <Project64-rsp-core/RSPInfo.h> #include <Project64-rsp-core/RSPInfo.h>
#include <Project64-rsp-core/Settings/RspSettings.h> #include <Project64-rsp-core/Settings/RspSettings.h>
#include <Project64-rsp-core/cpu/RspClamp.h>
#include <Project64-rsp-core/cpu/RspDma.h> #include <Project64-rsp-core/cpu/RspDma.h>
#include <Settings/Settings.h> #include <Settings/Settings.h>
#include <algorithm> #include <algorithm>

24
Source/Project64-rsp-core/cpu/RspClamp.cpp Normal file
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@ -0,0 +1,24 @@
#include "RspClamp.h"
uint16_t clamp16(int32_t Value)
{
if (Value > 0x7FFF)
{
return 0x7FFF;
}
if (Value < (int32_t)0xffff8000)
{
return 0x8000;
}
return (uint16_t)Value;
}
int64_t clip48(uint64_t Value)
{
enum : uint64_t
{
b = 1ull << (48 - 1),
m = b * 2 - 1
};
return ((Value & m) ^ b) - b;
}

5
Source/Project64-rsp-core/cpu/RspClamp.h Normal file
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@ -0,0 +1,5 @@
#pragma once
#include <stdint.h>
uint16_t clamp16(int32_t Value);
int64_t clip48(uint64_t);