[thirdparty/openssl.git] / crypto / sha / asm / sha256-586.pl

#!/usr/bin/env perl
#
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# SHA256 block transform for x86. September 2007.
#
# Performance in clock cycles per processed byte (less is better):
#
#		Pentium	PIII	P4	AMD K8	Core2
# gcc		46	36	41	27	26
# icc		57	33	38	25	23	
# x86 asm	40	30	35	20	20
# x86_64 asm(*)	-	-	21	15.8	16.5
#
# (*) x86_64 assembler performance is presented for reference
#     purposes.
#
# Performance improvement over compiler generated code varies from
Commit	Line	Data
ee0449b1 AP	1	#!/usr/bin/env perl
	2	#
	3	# ====================================================================
	4	# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
	5	# project. The module is, however, dual licensed under OpenSSL and
	6	# CRYPTOGAMS licenses depending on where you obtain it. For further
	7	# details see http://www.openssl.org/~appro/cryptogams/.
	8	# ====================================================================
	9	#
	10	# SHA256 block transform for x86. September 2007.
	11	#
	12	# Performance in clock cycles per processed byte (less is better):
	13	#
	14	# Pentium PIII P4 AMD K8 Core2
	15	# gcc 46 36 41 27 26
	16	# icc 57 33 38 25 23
	17	# x86 asm 40 30 35 20 20
	18	# x86_64 asm(*) - - 21 15.8 16.5
	19	#
	20	# (*) x86_64 assembler performance is presented for reference
	21	# purposes.
	22	#
	23	# Performance improvement over compiler generated code varies from
	24