--- trunk/README 2007/10/08 16:18:38 12 +++ trunk/README 2007/10/08 16:19:23 20 @@ -1,4 +1,4 @@ -Gavare's eXperimental Emulator -- GXemul 0.3.5 +Gavare's eXperimental Emulator -- GXemul 0.3.7 ================================================== Copyright (C) 2003-2005 Anders Gavare. @@ -7,15 +7,23 @@ Overview -------- -GXemul is an experimental instruction-level machine emulator. It can be used to -run binary code for MIPS-based machines, regardless of host platform. Several -emulation modes are available. For some modes, processors and surrounding +GXemul is an experimental instruction-level machine emulator. Several +emulation modes are available. In some modes, processors and surrounding hardware components are emulated well enough to let unmodified operating systems (e.g. NetBSD) run as if they were running on a real machine. -(Non-MIPS emulation modes are also under development, but so far none of those -modes has reached the completeness required to run unmodified operating -systems.) +MIPS processors are emulated using either a simple binary translation +layer ("recompilation"), which is used on Alpha and i386 hosts, or by +traditional interpretation (very very slow, but works on any host platform). + +ARM and PowerPC processors are emulated using a newer dynamic translation +system. Performance is somewhere between traditional interpretation and +dynamic recompilation; however, the dynamic translation system used in +GXemul does NOT require platform-specific back-end code. In plain English, +this means that the dyntrans system works on any host platform. + +(PowerPC emulation is still relatively new in 0.3.7, so dont't expect too +much from it.) Quick start