--- trunk/README 2007/10/08 16:18:38 12 +++ trunk/README 2007/10/08 16:19:37 22 @@ -1,21 +1,28 @@ -Gavare's eXperimental Emulator -- GXemul 0.3.5 +Gavare's eXperimental Emulator -- GXemul 0.3.8 ================================================== -Copyright (C) 2003-2005 Anders Gavare. +Copyright (C) 2003-2006 Anders Gavare. 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 into native code), 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 +recompilation into native code. However, the dynamic translation system +used in GXemul does NOT generate native code, and thus doesn't require +platform-specific back-ends. In plain English, this means that the +dyntrans system works on any host platform. Quick start @@ -25,7 +32,7 @@ Unix-like systems. If not, then please mail me a bug report. If you are impatient, and want to try out running a guest operating system -inside GXemul, please read this: doc/guestoses.html#netbsdinstall +inside GXemul, read this: doc/guestoses.html#netbsdcatsinstall If you want to use GXemul for experimenting with code of your own, then I suggest you compile a Hello World program according to the tips