Re: MMX and floating point insn suport for reversible debugging

[paawan oza <paawan1982@yahoo.com>]

Hi Hui,

I think we need to update and add floating point in following structure
for st1 to st7.

enum i386_regnum
{
  I386_EAX_REGNUM,		/* %eax */
  I386_ECX_REGNUM,		/* %ecx */
  I386_EDX_REGNUM,		/* %edx */
  I386_EBX_REGNUM,		/* %ebx */
  I386_ESP_REGNUM,		/* %esp */
  I386_EBP_REGNUM,		/* %ebp */
  I386_ESI_REGNUM,		/* %esi */
  I386_EDI_REGNUM,		/* %edi */
  I386_EIP_REGNUM,		/* %eip */
  I386_EFLAGS_REGNUM,		/* %eflags */
  I386_CS_REGNUM,		/* %cs */
  I386_SS_REGNUM,		/* %ss */
  I386_DS_REGNUM,		/* %ds */
  I386_ES_REGNUM,		/* %es */
  I386_FS_REGNUM,		/* %fs */
  I386_GS_REGNUM,		/* %gs */
  I386_ST0_REGNUM		/* %st(0) */
};

what do you say ?


Regards,
Oza.

--- On Thu, 5/7/09, Hui Zhu <teawater@gmail.com> wrote:

> From: Hui Zhu <teawater@gmail.com>
> Subject: Re: MMX and floating point insn suport for reversible debugging
> To: "paawan oza" <paawan1982@yahoo.com>
> Cc: "Thiago Jung Bauermann" <bauerman@br.ibm.com>, "gdb ml" <gdb@sourceware.org>, "Pedro Alves" <pedro@codesourcery.com>, "Marc Khouzam" <marc.khouzam@ericsson.com>, "Michael Snyder" <msnyder@vmware.com>, "Eli Zaretskii" <eliz@gnu.org>, "Mark Kettenis" <mark.kettenis@xs4all.nl>
> Date: Thursday, May 7, 2009, 8:24 AM
> On Thu, May 7, 2009 at 02:02, paawan
> oza <paawan1982@yahoo.com>
> wrote:
> >
> > Hi Hui,
> >
> > I have started understanding and working on point-1.
> > I have some questions. please let me know my
> understanding is correct ?
> >
> > 1) i386-tdep.c is the one which has been done for
> record-replay. which basically takes care of disassembling
> insns...
> > but I see some code regarding MMX and x87FPU already
> available.
> > may I know exactly, what support is missing ?
> >
> 
>     case 0x0f06:
>       break;
> 
>       /* MMX/SSE/SSE2/PNI support */
>       /* XXX */
> 
>     default:
> 
> Your mean is this part?
> 
> 
> And I suggest you can begin with float point insn
> first.  It doesn't
> record float point reg change.
> 
> 
> Thanks,
> Hui
>