OpenXM_contrib/gmp/mpn/x86/pentium/mmx/lshift.asm - diff

Return to lshift.asm CVS log

Up to [local] / OpenXM_contrib / gmp / mpn / x86 / pentium / mmx

version 1.1.1.1, 2000/09/09 14:12:44

version 1.1.1.2, 2003/08/25 16:06:30

Line 1

dnl Intel P5 mpn_lshift -- mpn left shift.

dnl

dnl P5: 1.75 cycles/limb.

dnl

dnl This file is part of the GNU MP Library.

dnl

Line 22 dnl License along with the GNU MP Library; see the fi

Line 19 dnl License along with the GNU MP Library; see the fi

dnl not, write to the Free Software Foundation, Inc., 59 Temple Place -

dnl Suite 330, Boston, MA 02111-1307, USA.

include(`../config.m4')

C P5: 1.75 cycles/limb.

C mp_limb_t mpn_lshift (mp_ptr dst, mp_srcptr src, mp_size_t size,

C unsigned shift);

Line 44 deflit(`FRAME',0)

Line 43 deflit(`FRAME',0)

dnl minimum 5, because the unrolled loop can't handle less

deflit(UNROLL_THRESHOLD, 5)

.text

TEXT

ALIGN(8)

PROLOGUE(mpn_lshift)

Line 263 L(unroll_loop):

Line 262 L(unroll_loop):

C mm0

C mm1

C mm2 src qword from 48(%ebx,%eax,4)

C mm2 src qword from 16(%ebx,%eax,4)

C mm3 dst qword ready to store to 56(%edx,%eax,4)

C mm3 dst qword ready to store to 24(%edx,%eax,4)

C mm5 return value

C mm6 lshift

Line 318 L(finish_no_two):

Line 317 L(finish_no_two):

C eax -4 or -3 representing respectively 0 or 1 limbs remaining

C mm2 src prev qword, from 48(%ebx,%eax,4)

C mm2 src prev qword, from 16(%ebx,%eax,4)

C mm3 dst qword, for 56(%edx,%eax,4)

C mm3 dst qword, for 24(%edx,%eax,4)

testb $1, %al

movd %mm5, %eax C retval