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INSTALLATION
LUAJIT
LuaJIT has been successfully used as a scripting middleware in games, appliances, network and graphics apps, numerical simulations, trading platforms and many other specialty applications. It scales from embedded devices, smartphones, desktops up to server farms. It combines high flexibility with high performance and an unmatched lowmemory footprint.
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORGRUNNING LUAJIT
Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORG LUAJIT 2.0 BYTECODE INSTRUCTIONS The following document describes the LuaJIT 2.0 bytecode instructions. See src/lj_bc.h in the LuaJIT source code for details. The bytecode can be listed with luajit -bl, see the -b option. A single bytecode instruction is 32 bit wide and has an 8 bit opcode field and several operand fields of 8 or 16 bit. LUA BIT OPERATIONS MODULE Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
LUAJIT
LuaJIT has been successfully used as a scripting middleware in games, appliances, network and graphics apps, numerical simulations, trading platforms and many other specialty applications. It scales from embedded devices, smartphones, desktops up to server farms. It combines high flexibility with high performance and an unmatched lowmemory footprint.
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORGRUNNING LUAJIT
Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORG LUAJIT 2.0 BYTECODE INSTRUCTIONS The following document describes the LuaJIT 2.0 bytecode instructions. See src/lj_bc.h in the LuaJIT source code for details. The bytecode can be listed with luajit -bl, see the -b option. A single bytecode instruction is 32 bit wide and has an 8 bit opcode field and several operand fields of 8 or 16 bit. LUA BIT OPERATIONS MODULE Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free softwareLUAJIT
LuaJIT has been successfully used as a scripting middleware in games, appliances, network and graphics apps, numerical simulations, trading platforms and many other specialty applications. It scales from embedded devices, smartphones, desktops up to server farms. It combines high flexibility with high performance and an unmatched lowmemory footprint.
PERFORMANCE: X86/X64 Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Choose different VMs to compare or compare the same VM on x86 and x64.PERFORMANCE: ARM
TI OMAP4460 1.2 GHz Cortex-A9. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Click on the arrows next to Benchmark or RatioFFI TUTORIAL
FFI Tutorial. This page is intended to give you an overview of the features of the FFI library by presenting a few use cases and guidelines. This page makes no attempt to explain all of the FFI library, though. You'll want to have a look at the ffi.*. API function reference and the FFI semantics to learn more.JIT.* LIBRARY
jit.opt.* — JIT compiler optimization control. This sub-module provides the backend for the -O command line option. You can also use it programmatically, e.g.: Unlike in LuaJIT 1.x, the module is built-in and optimization is turned on by default! It's no longer necessary to run require ("jit.opt").start () , which was one of theways to
DYNASM FEATURES
DynASM Toolchain Features. DynASM is a pre-processing assembler. DynASM converts mixed C/Assembler source to plain C code. The primary knowledge about instruction names, operand modes, registers, opcodes and how to encode them is only needed in the pre-processor.; The generated C code is extremely small and fast.FFI SEMANTICS
FFI Semantics. This page describes the detailed semantics underlying the FFI library and its interaction with both Lua and C code. Given that the FFI library is designed to interface with C code and that declarations can be written in plain C syntax, it closely follows theC
BYTECODE OPTIMIZATIONS The bytecode operates on dynamically-typed values and has semantics very close to the source code. This is the reason why relatively few optimizations can be performed on the bytecode itself -- most of them wouldn't be valid transforms in a dynamic language. Similarly, virtual register allocation for the bytecode closely follows scoping of NEW GARBAGE COLLECTOR The new garbage collector is an arena-based, quad-color incremental, generational, non-copying, high-speed, cache-optimized garbage collector. Memory is requested from the operating system in big aligned memory blocks, called arenas. Arenas are split into 16-bytesized cells.
FFI KNOWLEDGE
The canonical way to convert a cdata pointer to a Lua number is: tonumber (ffi.cast ('intptr_t', ffi.cast ('void *', ptr))) This returns a signed result, which is cheaper to handle and turns into a no-op, when JIT-compiled. If you really need an unsigned address (and not just an abstract identifier), then use uintptr_t. THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORGRUNNING LUAJIT
Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORG PERFORMANCE: X86/X64 Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Choose different VMs to compare or compare the same VM on x86 and x64. LUA BIT OPERATIONS MODULE Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software LUAJIT 2.0 BYTECODE INSTRUCTIONS The following document describes the LuaJIT 2.0 bytecode instructions. See src/lj_bc.h in the LuaJIT source code for details. The bytecode can be listed with luajit -bl, see the -b option. A single bytecode instruction is 32 bit wide and has an 8 bit opcode field and several operand fields of 8 or 16 bit. THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORGRUNNING LUAJIT
Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORG PERFORMANCE: X86/X64 Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Choose different VMs to compare or compare the same VM on x86 and x64. LUA BIT OPERATIONS MODULE Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software LUAJIT 2.0 BYTECODE INSTRUCTIONS The following document describes the LuaJIT 2.0 bytecode instructions. See src/lj_bc.h in the LuaJIT source code for details. The bytecode can be listed with luajit -bl, see the -b option. A single bytecode instruction is 32 bit wide and has an 8 bit opcode field and several operand fields of 8 or 16 bit.DOWNLOAD - LUAJIT
SHA256 Checksums
1ad2e34b111c802f9d0cdf019e986909123237a28c746b21295b63c9e785d9c3 LuaJIT-2.1.0-beta3.tar.gzRUNNING LUAJIT
Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.THE LUAJIT WIKI
JIT Compiler API - The jit.*. API allows to control/watch the JIT compiler. New Garbage Collector - Design of the new garbage collector for LuaJIT 3.0. Allocation Sinking Optimization - Design of allocation optimizations used in LuaJIT 2.0. Extended BNF - The Complete Syntax of LuaJIT including FFI literals and Lua 5.2 extensions.PERFORMANCE: ARM
TI OMAP4460 1.2 GHz Cortex-A9. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Click on the arrows next to Benchmark or RatioPERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale.LUAJIT MAILING LIST
The LuaJIT mailing list is dedicated to announcements, discussions, bug reports or feature requests for LuaJIT, the just-in-time compilerfor Lua.
JIT.* LIBRARY
jit.opt.* — JIT compiler optimization control. This sub-module provides the backend for the -O command line option. You can also use it programmatically, e.g.: Unlike in LuaJIT 1.x, the module is built-in and optimization is turned on by default! It's no longer necessary to run require ("jit.opt").start () , which was one of theways to
INSTALLATION
This page explains how to build Lua BitOp from source, against an existing Lua installation. If you've installed Lua using a package manager (e.g. as part of a Linux distribution), you're advised to check for a pre-built package of Lua BitOp and install this instead. NEW GARBAGE COLLECTOR The new garbage collector is an arena-based, quad-color incremental, generational, non-copying, high-speed, cache-optimized garbage collector. Memory is requested from the operating system in big aligned memory blocks, called arenas. Arenas are split into 16-bytesized cells.
BYTECODE OPTIMIZATIONS The bytecode operates on dynamically-typed values and has semantics very close to the source code. This is the reason why relatively few optimizations can be performed on the bytecode itself -- most of them wouldn't be valid transforms in a dynamic language. Similarly, virtual register allocation for the bytecode closely follows scoping of THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORG RUNNING LUAJITLUAJIT CMAKELUAJIT DECOMPILERLUAJIT WINDOWS BINARYLUASOCKET LUAJIT Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals. FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORGDYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
PERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale. LUA BIT OPERATIONS MODULELUAJIT ANDROIDLUAJIT CMAKELUAJIT COMPILE BYTECODELUAJIT GITHUBLUAJIT LUA 5 3 Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs. THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORG RUNNING LUAJITLUAJIT CMAKELUAJIT DECOMPILERLUAJIT WINDOWS BINARYLUASOCKET LUAJIT Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals. FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORGDYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
PERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale. LUA BIT OPERATIONS MODULELUAJIT ANDROIDLUAJIT CMAKELUAJIT COMPILE BYTECODELUAJIT GITHUBLUAJIT LUA 5 3 Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs.LUAJIT
LuaJIT has been successfully used as a scripting middleware in games, appliances, network and graphics apps, numerical simulations, trading platforms and many other specialty applications. It scales from embedded devices, smartphones, desktops up to server farms. It combines high flexibility with high performance and an unmatched lowmemory footprint.
PERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale.THE LUAJIT WIKI
JIT Compiler API - The jit.*. API allows to control/watch the JIT compiler. New Garbage Collector - Design of the new garbage collector for LuaJIT 3.0. Allocation Sinking Optimization - Design of allocation optimizations used in LuaJIT 2.0. Extended BNF - The Complete Syntax of LuaJIT including FFI literals and Lua 5.2 extensions. PERFORMANCE: X86/X64 Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Choose different VMs to compare or compare the same VM on x86 and x64.PERFORMANCE: ARM
TI OMAP4460 1.2 GHz Cortex-A9. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Click on the arrows next to Benchmark or RatioLUAJIT MAILING LIST
The LuaJIT mailing list is dedicated to announcements, discussions, bug reports or feature requests for LuaJIT, the just-in-time compilerfor Lua.
FFI TUTORIAL
FFI Tutorial. This page is intended to give you an overview of the features of the FFI library by presenting a few use cases and guidelines. This page makes no attempt to explain all of the FFI library, though. You'll want to have a look at the ffi.*. API function reference and the FFI semantics to learn more. FREQUENTLY ASKED QUESTIONS (FAQ) Q: Some FPU operations crash after I load a Delphi DLL. DirectX/Direct3D (up to version 9) sets the x87 FPU to single-precision mode by default. This violates the Windows ABI and interferes with the operation of many programs — LuaJIT is affected, too. Please make sure you always use the D3DCREATE_FPU_PRESERVE flag when initializing Direct3D.FFI SEMANTICS
FFI Semantics. This page describes the detailed semantics underlying the FFI library and its interaction with both Lua and C code. Given that the FFI library is designed to interface with C code and that declarations can be written in plain C syntax, it closely follows theC
FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs. THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORG RUNNING LUAJITLUAJIT CMAKELUAJIT DECOMPILERLUAJIT WINDOWS BINARYLUASOCKET LUAJIT Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORGPERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale. LUA BIT OPERATIONS MODULELUAJIT ANDROIDLUAJIT CMAKELUAJIT COMPILE BYTECODELUAJIT GITHUBLUAJIT LUA 5 3 Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs. THE LUAJIT PROJECTHOMELUAJITEXTENSIONSSTATUSFAQPERFORMANCE The LuaJIT Project. This is the common project page for: LuaJIT — a Just-In-Time Compiler for Lua. Coco — a Lua extension for True C Coroutines . DynASM — a Dynamic Assembler for code generation engines. Lua Bitop — a Lua extension for bitwise operations onnumbers.
INSTALLATION
DOWNLOAD - LUAJITSEE MORE ON LUAJIT.ORG RUNNING LUAJITLUAJIT CMAKELUAJIT DECOMPILERLUAJIT WINDOWS BINARYLUASOCKET LUAJIT Running LuaJIT. LuaJIT has only a single stand-alone executable, called luajit on POSIX systems or luajit.exe on Windows. It can be used to run simple Lua statements or whole Lua applications from the command line. It has an interactive mode, too.FFI LIBRARY
The FFI library allows calling external C functions and using C data structures from pure Lua code.. The FFI library largely obviates the need to write tedious manual Lua/C bindings in C. No need to learn a separate binding language — it parses plain C declarations! These can be cut-n-pasted from C header files or reference manuals.DYNASM - LUAJIT
DynASM is a Dynamic Assembler for code generation engines.. DynASM has been developed primarily as a tool for LuaJIT, but might be useful for other projects, too. If you are writing a just-in-time compiler or need to generate code on the fly (e.g. for high-performance graphics or other CPU-intensive computations), DynASM might be just what youare looking for.
FFI.* API FUNCTIONSSEE MORENEW CONTENT WILL BE ADDED ABOVE THE CURRENT AREA OF FOCUS UPON SELECTIONSEE MORE ON LUAJIT.ORGPERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale. LUA BIT OPERATIONS MODULELUAJIT ANDROIDLUAJIT CMAKELUAJIT COMPILE BYTECODELUAJIT GITHUBLUAJIT LUA 5 3 Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise operations on numbers.. Lua BitOp is Copyright © 2008-2012 Mike Pall. Lua BitOp is free software FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs.LUAJIT
LuaJIT has been successfully used as a scripting middleware in games, appliances, network and graphics apps, numerical simulations, trading platforms and many other specialty applications. It scales from embedded devices, smartphones, desktops up to server farms. It combines high flexibility with high performance and an unmatched lowmemory footprint.
PERFORMANCE: PPC
LuaJIT 2.0.0 DN. Interactive Performance Comparison Chart. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 2.92 means the 2nd VM runs that benchmark almost three times faster. Please note the bar graph has logarithmic scale.THE LUAJIT WIKI
JIT Compiler API - The jit.*. API allows to control/watch the JIT compiler. New Garbage Collector - Design of the new garbage collector for LuaJIT 3.0. Allocation Sinking Optimization - Design of allocation optimizations used in LuaJIT 2.0. Extended BNF - The Complete Syntax of LuaJIT including FFI literals and Lua 5.2 extensions. PERFORMANCE: X86/X64 Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Choose different VMs to compare or compare the same VM on x86 and x64.PERFORMANCE: ARM
TI OMAP4460 1.2 GHz Cortex-A9. Select two VMs to compare. Click to the left for the 1st one and to the right for the 2nd one. Then take a look at the results below. E.g. a ratio of 49.71 means the 2nd VM runs that benchmark almost fifty times faster. Please note the bar graph has logarithmic scale. Click on the arrows next to Benchmark or RatioLUAJIT MAILING LIST
The LuaJIT mailing list is dedicated to announcements, discussions, bug reports or feature requests for LuaJIT, the just-in-time compilerfor Lua.
FFI TUTORIAL
FFI Tutorial. This page is intended to give you an overview of the features of the FFI library by presenting a few use cases and guidelines. This page makes no attempt to explain all of the FFI library, though. You'll want to have a look at the ffi.*. API function reference and the FFI semantics to learn more. FREQUENTLY ASKED QUESTIONS (FAQ) Q: Some FPU operations crash after I load a Delphi DLL. DirectX/Direct3D (up to version 9) sets the x87 FPU to single-precision mode by default. This violates the Windows ABI and interferes with the operation of many programs — LuaJIT is affected, too. Please make sure you always use the D3DCREATE_FPU_PRESERVE flag when initializing Direct3D.FFI SEMANTICS
FFI Semantics. This page describes the detailed semantics underlying the FFI library and its interaction with both Lua and C code. Given that the FFI library is designed to interface with C code and that declarations can be written in plain C syntax, it closely follows theC
FFI CALLBACKS WITH PASS BY VALUE STRUCTS When you have a C callback that uses pass by value semantics for structs, LuaJIT FFI cannot handle this case directly, but it can indirectly. When a function is called that has pass by value structs, the structs are placed on the stack and the function receives the stack addresses to the structs.LuaJIT
THE LUAJIT PROJECT
* Home
* LuaJIT
* Download ⇩
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* Running
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* on x86/x64
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* Wiki »
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This is the common project page for: * LuaJIT — a JUST-IN-TIME COMPILER for Lua. * Coco — a Lua extension for TRUEC COROUTINES.
* DynASM — a DYNAMIC ASSEMBLER for code generationengines.
* Lua Bitop — a Lua extension for BITWISE OPERATIONS on numbers.NEWS
* 2017-05-01 LuaJIT 2.1.0-beta3 has been released LuaJIT 2.1.0-beta3 is available for download . This is the third beta release for the new v2.1 branch. Apart from various fixes, the major new features are JIT compiler support for x64 in GC64 mode, ARM64 and MIPS64. * 2017-05-01 LuaJIT 2.0.5 has been released LuaJIT 2.0.5 is available for download . This release has various bugfixes over 2.0.4 — an update isrecommended.
* 2015-07-31 Looking for new LuaJIT maintainers The LuaJIT project is looking for new maintainers. Please check the this mailing list postingfor more details.
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