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[Qemu-devel] sparc32 "bneg,a" bug?


From: Artyom Tarasenko
Subject: [Qemu-devel] sparc32 "bneg,a" bug?
Date: Sun, 7 Nov 2010 18:22:39 +0100

Can it be that bneg,a branches unconditionally, or annuls unconditionally?

   0xf0071520:  subcc  %g3, %g2, %g3
=> 0xf0071524:  bneg,a   0xf007152c
   0xf0071528:  clr  %g3
   0xf007152c:  st  %g3, [ %i0 + 0x58 ]
(gdb) info registers g3 psr
g3             0x18     24
psr            0x4000ae7        [ #0 #1 #2 ET PS S #9 #11 #26 ]
(gdb) nexti
0xf007152c in ?? ()

 0xf0071528 is supposed to be executed. Or it a gdb stub bug?

-- 
Regards,
Artyom Tarasenko

solaris/sparc under qemu blog: http://tyom.blogspot.com/



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