Re: extracting the opcode of the instruction

This info is available during fetchdecode function (in b1 variable) but not
passed into bxInstruction_c.
There is no use or this field after decoding.

Stanislav

-----Original Message-----
From: Xin Tong [mailto:[email protected]] 
Sent: Wednesday, November 07, 2012 9:39 PM
To: Stanislav
Cc: [email protected]
Subject: Re: [Bochs-developers] extracting the opcode of the instruction

I want the opcode bytes. not all the bytes of the instruction.

i.e. the first byte of the instruction. or the first two bytes in some cases

i.e. 0x40 for inc instruction.

Xin


On Wed, Nov 7, 2012 at 1:03 PM, Stanislav <[email protected]> wrote:
> Define the x86 opcode.
> If you mean opcodes bytes (up to 15), they could be inside 
> bxInstruction_c if compiled with BX_INSTR_STORE_OPCODE_BYTES define in
instr.h.
> For all other stuff the ia_opcode field in the instruction is usually 
> enough.
>
> stanislav
>
> -----Original Message-----
> From: Xin Tong [mailto:[email protected]]
> Sent: Wednesday, November 07, 2012 6:24 PM
> To: [email protected]
> Subject: [Bochs-developers] extracting the opcode of the instruction
>
> I would like to get the opcode of the instruction. it seems that the 
> ia_opcode in the bxInstruction_c structure is not the x86 opcode. are 
> there any other places i can get the ia_opcodes of the instruction ?
>
> Xin
>
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