We can select cpu using unit number instead of name,

for instance we can use "dev /cpus/@0" instead of "dev 
/cpus/PowerPC,750". This notation is used in Fedora bootscript
to know if the CPU is 64-bit or 32-bit: it looks at "64-bit" property
of first available CPUS ("@0").

Signed-off-by: Laurent Vivier <Laurent@vivier.eu>



git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@559 f158a5a8-5612-0410-a976-696ce0be7e32

arch/ppc/qemu/tree.fs

@@ -19,6 +19,16 @@ new-device
 	" cpus" device-name
 	1 encode-int " #address-cells" property
 	0 encode-int " #size-cells" property
+	external
+
+	: encode-unit ( unit -- str len )
+		pocket tohexstr
+	;
+
+	: decode-unit ( str len -- unit )
+		parse-hex
+	;
+
 finish-device
 
 new-device