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|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
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|    Message 4,246 of 4,675    |
|    Bernhard Schornak to All    |
|    Re: Refuting the {Linz, Sipser and Kozen    |
|    22 Dec 20 11:07:44    |
      From: schornak@nospicedham.web.de              olcott wrote:              _H_Hat:       [000005e6](01) 55 push ebp       [000005e7](02) 8bec mov ebp,esp       [000005e9](01) 51 push ecx       [000005ea](03) 8b4508 mov eax,[ebp+08]       [000005ed](01) 50 push eax       [000005ee](03) 8b4d08 mov ecx,[ebp+08]       [000005f1](01) 51 push ecx       [000005f2](05) e8effdffff call 000003e6       [000005f7](03) 83c408 add esp,+08       [000005fa](03) 8945fc mov [ebp-04],eax       [000005fd](04) 837dfc00 cmp dword [ebp-04],+00       [00000601](02) 7404 jz 00000607       [00000603](02) ebfe jmp 00000603       [00000605](02) eb01 jmp 00000608       [00000607](01) f4 hlt       [00000608](02) 8be5 mov esp,ebp       [0000060a](01) 5d pop ebp       [0000060b](01) c3 ret                     0603 jumps to itself. Reduce to              _H-Hat:movl 0x0C(%esp), %eax        subl $0x08, %esp        movl %eax, 0x00(%esp)        movl %eax, 0x04(%esp)        call _WHATEVER_THAT_IS        testl %eax, %eax        je 0f        L00:jmp L00 # loop forever        0:hlt # CLI/STI?        addl $0x08, %esp        ret                            As long as the code at 0x03E6 is unknown, it is impossible to tell       anything. _H_Hat itself does nothing ... except wasting clocks and       electrical power when the returned value is not zero.              The only thing I can see in your debug trace is that you would run       out of stack, if the debugger did not stop your attempts with this       error message before ESP reached your stack's bottom. Maybe a good       proof the debugger works well, but nothing else... ;)                     Merry Winter Solstice!              Bernhard Schornak              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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