1 dnl x86 mpn_copyd -- copy limb vector, decrementing.
3 dnl Future: On P6 an MMX loop should be able to go faster than this code.
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26 include(`../config.m4')
29 C void mpn_copyd (mp_ptr dst, mp_srcptr src, mp_size_t size);
31 C Copy src,size to dst,size, working from high to low addresses.
33 C The code here is very generic and can be expected to be reasonable on all
36 C P5 - 1.0 cycles/limb.
38 C P6 - 2.4 cycles/limb, approx 40 cycles startup.
40 defframe(PARAM_SIZE,12)
41 defframe(PARAM_SRC, 8)
42 defframe(PARAM_DST, 4)
64 leal -4(%esi,%ecx,4), %esi
66 leal -4(%edi,%ecx,4), %edi