correct ioctls

[qemu] / qemu-tech.texi

diff --git a/qemu-tech.texi b/qemu-tech.texi
index 4e6f507..95d1787 100644 (file)
--- a/qemu-tech.texi
+++ b/qemu-tech.texi
@@ -22,7 +22,7 @@ QEMU has two operating modes:
 
 @item 
 Full system emulation. In this mode, QEMU emulates a full system
 
 @item 
 Full system emulation. In this mode, QEMU emulates a full system

-(usually a PC), including a processor and various peripherials. It can
+(usually a PC), including a processor and various peripherals. It can

 be used to launch an different Operating System without rebooting the
 PC or to debug system code.
 
 be used to launch an different Operating System without rebooting the
 PC or to debug system code.
 

@@ -126,7 +126,7 @@ maximum performances.
 
 @itemize
 
 
 @itemize
 

-@item Full PowerPC 32 bit emulation, including priviledged instructions, 
+@item Full PowerPC 32 bit emulation, including privileged instructions, 

 FPU and MMU.
 
 @item Can run most PowerPC Linux binaries.
 FPU and MMU.
 
 @item Can run most PowerPC Linux binaries.

@@ -137,9 +137,32 @@ FPU and MMU.
 
 @itemize
 
 
 @itemize
 

-@item SPARC V8 user support, except FPU instructions.
+@item Somewhat complete SPARC V8 emulation, including privileged
+instructions, FPU and MMU. SPARC V9 emulation includes most privileged
+instructions, FPU and I/D MMU, but misses VIS instructions.

 
 

-@item Can run some SPARC Linux binaries.
+@item Can run some 32-bit SPARC Linux binaries.
+
+@end itemize
+
+Current QEMU limitations:
+
+@itemize 
+
+@item Tagged add/subtract instructions are not supported, but they are
+probably not used.
+
+@item IPC syscalls are missing.
+
+@item 128-bit floating point operations are not supported, though none of the
+real CPUs implement them either. FCMPE[SD] are not correctly
+implemented.  Floating point exception support is untested.
+
+@item Alignment is not enforced at all.
+
+@item Atomic instructions are not correctly implemented.
+
+@item Sparc64 emulators are not usable for anything yet.

 
 @end itemize
 
 
 @end itemize