Trance JIT
Encyclopedia
Trance JIT is a MorphOS
JIT
compiler
, or code translator, for running 68k
applications within the MorphOS environment. It has been part of the MorphOS operating system since MorphOS 1.4.
MorphOS itself has a fully integrated 68k emulator for running many Amiga applications. (Amiga programs were almost exclusively compiled for the 68k processor, while MorphOS itself is PowerPC
). Trance supplements this functionality by adding JIT compilation, increasing the speed of the emulation even further. It does not interfere with the full integration of 68k and PowerPC tasks MorphOS provides.
Trance exists in the form of an executable, run during boot, and a shared library. Although it is not technically part of the kernel, and MorphOS can be run without it, Trance is considered a fundamental part of MorphOS and one of its most powerful features.
Compatibility of Trance is considered to be very high and there are few to no 68k instruction sequences or applications which cause it any problems. It is also considered to be very fast, with users noticing few differences between 68k programs and native PowerPC code.
Trance was developed by Ralph Schmidt and Teemu Suikki, with minor support from other MorphOS team members, Mark Olsen, Sigbjørn Skjæret and Harry Sintonen.
MorphOS
MorphOS is an Amiga-compatible computer operating system. It is a mixed proprietary and open source OS produced for the Pegasos PowerPC processor based computer, PowerUP accelerator equipped Amiga computers, and a series of Freescale development boards that use the Genesi firmware, including the...
JIT
Just-in-time compilation
In computing, just-in-time compilation , also known as dynamic translation, is a method to improve the runtime performance of computer programs. Historically, computer programs had two modes of runtime operation, either interpreted or static compilation...
compiler
Compiler
A compiler is a computer program that transforms source code written in a programming language into another computer language...
, or code translator, for running 68k
68k
The Motorola 680x0/m68000/68000 is a family of 32-bit CISC microprocessors. During the 1980s and early 1990s, they were popular in personal computers and workstations and were the primary competitors of Intel's x86 microprocessors...
applications within the MorphOS environment. It has been part of the MorphOS operating system since MorphOS 1.4.
MorphOS itself has a fully integrated 68k emulator for running many Amiga applications. (Amiga programs were almost exclusively compiled for the 68k processor, while MorphOS itself is PowerPC
PowerPC
PowerPC is a RISC architecture created by the 1991 Apple–IBM–Motorola alliance, known as AIM...
). Trance supplements this functionality by adding JIT compilation, increasing the speed of the emulation even further. It does not interfere with the full integration of 68k and PowerPC tasks MorphOS provides.
Trance exists in the form of an executable, run during boot, and a shared library. Although it is not technically part of the kernel, and MorphOS can be run without it, Trance is considered a fundamental part of MorphOS and one of its most powerful features.
Compatibility of Trance is considered to be very high and there are few to no 68k instruction sequences or applications which cause it any problems. It is also considered to be very fast, with users noticing few differences between 68k programs and native PowerPC code.
Trance was developed by Ralph Schmidt and Teemu Suikki, with minor support from other MorphOS team members, Mark Olsen, Sigbjørn Skjæret and Harry Sintonen.