Re: [Valgrind-users] disInstr: unhandled instruction bytes: 0x1E 0x7 0xC3 0x8A

[Wolfgang R. <wol...@ro...>]

I found the offending code. This is some 20 year old assembly
doing speed optimized BCD arithmetic (written for an 80286).
Since I have the same code in C (much slower), I am now using
the C code for valgrind, problem solved.

This was the assembly code:

adj2:
	addl   $0x7,0x8(%ebp)
	addl   $0x7,0xc(%ebp)
	pushl  %ds		<=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
	popl   %es		<=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
	ret   =20

fcom:
	pushl  %ebp
	movl   %esp,%ebp
	pushl  %edi
	pushl  %esi
	pushl  %ebx
	call   adj2

The last time I did assembly was on Z80 and 6502 (AppleII), so
I won't try to change this.

Thank you very much for your valuable help!

--=20

mit freundlichen Gr=FCssen

with my best greetings

Wolfgang Rohdewald

dipl. Informatik Ing. ETH Rohdewald Systemberatung
Karauschenstieg 4
D 21640 Horneburg
Tel.:     04163 826 819
Fax:      04163 826 828
Internet: www.rohdewald.de