adding direct block chaining support - simplified branch code gen

[qemu] / README

diff --git a/README b/README
index 5229432..0303067 100644 (file)
--- a/README
+++ b/README
@@ -9,14 +9,48 @@ Type
     ./configure
     make
 
-to build qemu and libqemu.a.
+to build qemu, qemu-CPU and libqemu.a (CPU is the name of the various
+supported target CPUs).
 
 Type
 
     make install
 
-to install qemu in /usr/local/bin
+to install QEMU in /usr/local
 
+Tested tool versions
+--------------------
+
+In order to compile QEMU succesfully, it is very important that you
+have the right tools. The most important one is gcc. I cannot guaranty
+that QEMU works if you do not use a tested gcc version. Look at
+'configure' and 'Makefile' if you want to make a different gcc
+version work.
+
+host      gcc      binutils      glibc    linux       distribution
+----------------------------------------------------------------------
+x86       2.95.2   2.13.2        2.1.3    2.4.18           
+          3.2      2.13.2        2.1.3    2.4.18
+          2.96     2.11.93.0.2   2.2.5    2.4.18      Red Hat 7.3
+          3.2.2    2.13.90.0.18  2.3.2    2.4.20      Red Hat 9
+
+PowerPC   3.3 [4]  2.13.90.0.18  2.3.1    2.4.20briq
+          3.2
+
+Alpha     3.3 [1]  2.14.90.0.4   2.2.5    2.2.20 [2]  Debian 3.0
+
+Sparc32   2.95.4   2.12.90.0.1   2.2.5    2.4.18      Debian 3.0
+
+ARM       2.95.4   2.12.90.0.1   2.2.5    2.4.9 [3]   Debian 3.0
+
+[1] On Alpha, QEMU needs the gcc 'visibility' attribute only available
+    for gcc version >= 3.3.
+[2] Linux >= 2.4.20 is necessary for precise exception support
+    (untested).
+[3] 2.4.9-ac10-rmk2-np1-cerf2
+
+[4] gcc 2.95.x generates invalid code when using too many register
+variables. You must use gcc 3.x on PowerPC.
 
 Documentation
 -------------