Dynamically Recompiling Emulator - Dynamic recompilation of MOS 6502 machine code through LLVM IR using a JIT compiler
Typ
Examensarbete på kandidatnivå
Program
Publicerad
2020
Författare
Blomqvist, Carl
Falkenby, Matilda
Kalin, William
Korch, Felix
Lundgren, Carl
Pettersson, Markus
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
This report examines the possibility to implement dynamic recompilation of machine
code for the central processing unit MOS 6502. Using libraries for compilation and
optimizations, from the LLVM project, an emulator for the MOS 6502 processor
was developed. In addition to the dynamically recompiling emulator, an interpreting
emulator was developed as well. The interpreting emulator was used as a reference
when assessing the execution time of the machine code generated by the dynamically
recompiling emulator. It was shown that the execution time of MOS 6502 programs
was lower when executed on the dynamically recompiling emulator, compared to
the interpreting emulator. The dynamically recompiling emulator has an associated
startup time, which in some cases leads to the interpreting emulator finishing its
execution quicker overall.
Beskrivning
Ämne/nyckelord
emulation , dynamically recompiling emulator , interpreting emulator , dynamic recompilation , JIT , LLVM , MOS 6502