booting a new kernel from an already running kernel

[Frederic Marmond <fmarmond@eprocess.fr>]

hi dear all...

I try to boot a kernel from an already running kernel.
I use 'monte' 
(http://www.scyld.com/products/beowulf/software/monte.html), which was 
designed for 2.2 kernels.
After adapting it to 2.4 (...), it do something...
of course, it is not what i wanted.
Some questions for ATT syntax guru:

a bit of C source code
  __asm__ __volatile__
      (/* Grab the args for our memcpy off the stack now while we still
    * have page tables. */
       "    movl %0, %%ebx           \n" /* Arg storage: memlist -> EBX */
       "    movl %1, %%edx           \n" /* Arg storage: entry   -> EDX */
       "    movl %2, %%ebp           \n" /* Arg storage: flags   -> EBP */

       /* Turn off paging, leave protected mode turned on. */
       "    movl %%cr0, %%eax        \n" /* Turn off paging (bit 31 in 
CR0) */
       "    andl $0x7FFFFFFF, %%eax  \n"
       "    movl %%eax, %%cr0        \n"
       "    xorl %%eax, %%eax        \n" /* Flush the TLB (write 0 to 
CR3) */
       "    movl %%eax, %%cr3        \n"

what I have in dessasemble (ldasm) for this function:

:00000763 8b5d08                 mov  ebx, ptr [ebp+8]
:00000766 8b550c                 mov  edx, ptr [ebp]
:00000769 8b6d10                 mov  ebp, ptr [ebp+10]
:0000076c 0f20c0                 mov  eax, cr0
:0000076f 25ffffff7f             and  eax, 7fffffff
:00000774 0f22c0                 mov  cr0, eax
:00000777 31c0                   xor  eax, eax
:00000779 0f22d8                 mov  cr3, eax

My main question is:
what "movl %0,%%ebx" is supposed to do?
reading at ebp+8 ('local variables' + 8)?
Why %0, %1 and %2 are not compiled in the good order (like ebp+0x8, 
ebp+0xc, and ebp+0x10 ?)


if any idea/known about the general problem (booting a kernel from a 
running system, like $re-run bzImage-foo.bar).

thanks for futur answers.

Fred