disas/hppa: Add disassembly for qemu specific instructions

Add disassembly of opcodes for "HALT QEMU", "RESET QEMU" and
"RESTORE SHR" (restore shadow registers).

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

disas/hppa.c

@@ -1609,6 +1609,10 @@ static const struct pa_opcode pa_opcodes[] =
 { "call",	0xe800a000, 0xffe0e000, "nW", pa10, FLAG_STRICT},
 { "ret",	0xe840d000, 0xfffffffd, "n", pa20, FLAG_STRICT},
 
+/* Opcodes assigned to QEMU, used by SeaBIOS firmware and Linux kernel */
+{ "HALT QEMU",	0xfffdead0, 0xfffffffd, "n", pa10, FLAG_STRICT},
+{ "RESET QEMU",	0xfffdead1, 0xfffffffd, "n", pa10, FLAG_STRICT},
+{ "RESTORE SHR",0xfffdead2, 0xfffffffd, "n", pa10, FLAG_STRICT},
 };
 
 #define NUMOPCODES ((sizeof pa_opcodes)/(sizeof pa_opcodes[0]))