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smitjessmitjes
committedJul 11, 2023
Adding 6. Conditional Branches
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Diff for: ‎Assembly64.sln

+9
Original file line numberDiff line numberDiff line change
@@ -25,6 +25,10 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Flags", "Episode5\Flags\Fla
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Episode 5", "Episode 5", "{5A70F316-4DFE-4502-9A21-51B2BD05D446}"
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ConditionalJumps", "Episode6\ConditionalJumps\ConditionalJumps.vcxproj", "{4DD40142-837D-4461-BA3F-0A805A2A057A}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Episode 6", "Episode 6", "{F3695239-C1C4-487E-A513-9D53EDECD849}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
@@ -55,6 +59,10 @@ Global
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{03695492-74FF-4903-BE0B-6B46CFABA571}.Debug|x64.Build.0 = Debug|x64
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{03695492-74FF-4903-BE0B-6B46CFABA571}.Release|x64.ActiveCfg = Release|x64
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{03695492-74FF-4903-BE0B-6B46CFABA571}.Release|x64.Build.0 = Release|x64
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{4DD40142-837D-4461-BA3F-0A805A2A057A}.Debug|x64.ActiveCfg = Debug|x64
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{4DD40142-837D-4461-BA3F-0A805A2A057A}.Debug|x64.Build.0 = Debug|x64
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{4DD40142-837D-4461-BA3F-0A805A2A057A}.Release|x64.ActiveCfg = Release|x64
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{4DD40142-837D-4461-BA3F-0A805A2A057A}.Release|x64.Build.0 = Release|x64
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
@@ -66,6 +74,7 @@ Global
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{58E5588C-DC09-4951-B8B0-3EF2BABD38F4} = {95ABA174-1152-401A-9D3E-9D6CDE2B9228}
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{49E26C62-F111-4C69-AC6A-784B219B9ADE} = {BDAB1C19-10D8-42C3-B247-7EBF52866D78}
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{03695492-74FF-4903-BE0B-6B46CFABA571} = {5A70F316-4DFE-4502-9A21-51B2BD05D446}
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{4DD40142-837D-4461-BA3F-0A805A2A057A} = {F3695239-C1C4-487E-A513-9D53EDECD849}
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {74B06FA8-487D-4545-8B72-13DF56D10686}

Diff for: ‎Episode6/ConditionalJumps/ConditionalJumps.vcxproj

+84
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,84 @@
1+
<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>16.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{4dd40142-837d-4461-ba3f-0a805a2a057a}</ProjectGuid>
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<RootNamespace>ConditionalJumps</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.props" />
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</ImportGroup>
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<ImportGroup Label="Shared">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EntryPointSymbol>main</EntryPointSymbol>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EntryPointSymbol>main</EntryPointSymbol>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<MASM Include="main.asm" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.targets" />
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</ImportGroup>
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</Project>

Diff for: ‎Episode6/ConditionalJumps/ConditionalJumps.vcxproj.filters

+6
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@@ -0,0 +1,6 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<MASM Include="main.asm" />
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</ItemGroup>
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</Project>

Diff for: ‎Episode6/ConditionalJumps/main.asm

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.CODE
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main PROC
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mov eax, 0
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; Carry flag conditional jumps
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call CarryFlagSet
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call CarryFlagNotSet
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; Zero flag conditional jumps
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call ZeroFlagSet
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call ZeroFlagNotSet
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; Sign flag conditional jumps
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call SignFlagSet
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call SignFlagNotSet
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; Overflow flag conditional jumps
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call OverflowFlagSet
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call OverflowFlagNotSet
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; unconditional jump
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call UnconditionalJump
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mov eax, 0
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ret
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main ENDP
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CarryFlagSet PROC
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mov al, 255
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add al, 1
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jc Carry1
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jnc NoCarry1
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Carry1:
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ret
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NoCarry1:
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ret
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CarryFlagSet ENDP
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CarryFlagNotSet PROC
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mov al, 200
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add al, 1
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jc Carry2
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jnc NoCarry2
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Carry2:
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ret
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NoCarry2:
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ret
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CarryFlagNotSet ENDP
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ZeroFlagSet PROC
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mov rax, 1
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dec rax
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jz Zero1
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jnz NoZero1
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Zero1:
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ret
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NoZero1:
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ret
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ZeroFlagSet ENDP
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ZeroFlagNotSet PROC
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mov rax, 5
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dec rax
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jz Zero2
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jnz NoZero2
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Zero2:
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ret
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NoZero2:
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ret
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ZeroFlagNotSet ENDP
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SignFlagSet PROC
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mov rax, 1
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sub rax, 3
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js Sign1
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jns NoSign1
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Sign1:
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ret
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NoSign1:
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ret
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SignFlagSet ENDP
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SignFlagNotSet PROC
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mov rax, 6
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sub rax, 3
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js Sign2
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jns NoSign2
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Sign2:
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ret
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NoSign2:
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ret
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SignFlagNotSet ENDP
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OverflowFlagSet PROC
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mov al, 127
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add al, 1
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jo Overflow1
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jno NoOverflow1
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Overflow1:
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ret
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NoOverflow1:
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ret
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OverflowFlagSet ENDP
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OverflowFlagNotSet PROC
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mov al, 120
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add al, 1
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jo Overflow2
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jno NoOverflow2
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Overflow2:
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ret
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NoOverflow2:
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ret
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OverflowFlagNotSet ENDP
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UnconditionalJump PROC
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mov rax, 3
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decrement:
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dec rax
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jz exit
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jmp decrement
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; jnz decrement ; this would better (instead of jz + jmp)
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exit:
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ret
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UnconditionalJump ENDP
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END

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