Throw in bn_mul_mont for x86.
This commit is contained in:
Andy Polyakov
@@ -116,9 +116,9 @@ my $tlib="-lnsl -lsocket";
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my $bits1="THIRTY_TWO_BIT ";
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my $bits2="SIXTY_FOUR_BIT ";
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my $x86_elf_asm="x86cpuid-elf.o:bn86-elf.o co86-elf.o:dx86-elf.o yx86-elf.o:ax86-elf.o:bx86-elf.o:mx86-elf.o:sx86-elf.o s512sse2-elf.o:cx86-elf.o:rx86-elf.o:rm86-elf.o:r586-elf.o";
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my $x86_coff_asm="x86cpuid-cof.o:bn86-cof.o co86-cof.o:dx86-cof.o yx86-cof.o:ax86-cof.o:bx86-cof.o:mx86-cof.o:sx86-cof.o s512sse2-cof.o:cx86-cof.o:rx86-cof.o:rm86-cof.o:r586-cof.o";
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my $x86_out_asm="x86cpuid-out.o:bn86-out.o co86-out.o:dx86-out.o yx86-out.o:ax86-out.o:bx86-out.o:mx86-out.o:sx86-out.o s512sse2-out.o:cx86-out.o:rx86-out.o:rm86-out.o:r586-out.o";
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my $x86_elf_asm="x86cpuid-elf.o:bn86-elf.o co86-elf.o mo86-elf.o:dx86-elf.o yx86-elf.o:ax86-elf.o:bx86-elf.o:mx86-elf.o:sx86-elf.o s512sse2-elf.o:cx86-elf.o:rx86-elf.o:rm86-elf.o:r586-elf.o";
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my $x86_coff_asm="x86cpuid-cof.o:bn86-cof.o co86-cof.o mo86-cof.o:dx86-cof.o yx86-cof.o:ax86-cof.o:bx86-cof.o:mx86-cof.o:sx86-cof.o s512sse2-cof.o:cx86-cof.o:rx86-cof.o:rm86-cof.o:r586-cof.o";
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my $x86_out_asm="x86cpuid-out.o:bn86-out.o co86-out.o mo86-out.o:dx86-out.o yx86-out.o:ax86-out.o:bx86-out.o:mx86-out.o:sx86-out.o s512sse2-out.o:cx86-out.o:rx86-out.o:rm86-out.o:r586-out.o";
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my $x86_64_asm="x86_64cpuid.o:x86_64-gcc.o::aes-x86_64.o::md5-x86_64.o:sha1-x86_64.o sha256-x86_64.o sha512-x86_64.o::rc4-x86_64.o::";
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my $ia64_asm=":bn-ia64.o::aes_core.o aes_cbc.o aes-ia64.o:::sha1-ia64.o sha256-ia64.o sha512-ia64.o::rc4-ia64.o::";
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52
TABLE
52
TABLE
@@ -198,7 +198,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-out.o
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$bn_obj = bn86-out.o co86-out.o
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$bn_obj = bn86-out.o co86-out.o mo86-out.o
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$des_obj = dx86-out.o yx86-out.o
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$aes_obj = ax86-out.o
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$bf_obj = bx86-out.o
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@@ -225,7 +225,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -279,7 +279,7 @@ $sys_id = CYGWIN32
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-cof.o
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$bn_obj = bn86-cof.o co86-cof.o
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$bn_obj = bn86-cof.o co86-cof.o mo86-cof.o
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$des_obj = dx86-cof.o yx86-cof.o
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$aes_obj = ax86-cof.o
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$bf_obj = bx86-cof.o
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@@ -333,7 +333,7 @@ $sys_id = MSDOS
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$lflags = -L/dev/env/WATT_ROOT/lib -lwatt
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-out.o
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$bn_obj = bn86-out.o co86-out.o
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$bn_obj = bn86-out.o co86-out.o mo86-out.o
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$des_obj = dx86-out.o yx86-out.o
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$aes_obj = ax86-out.o
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$bf_obj = bx86-out.o
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@@ -846,7 +846,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1035,7 +1035,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1224,7 +1224,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1305,7 +1305,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1332,7 +1332,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1413,7 +1413,7 @@ $sys_id =
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$lflags = -lefence -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1440,7 +1440,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1467,7 +1467,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1494,7 +1494,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1521,7 +1521,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1656,7 +1656,7 @@ $sys_id =
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$lflags = -rdynamic -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -1818,7 +1818,7 @@ $sys_id =
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$lflags = -lnsl -lsocket
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -2277,7 +2277,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -2574,7 +2574,7 @@ $sys_id =
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$lflags =
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-out.o
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$bn_obj = bn86-out.o co86-out.o
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$bn_obj = bn86-out.o co86-out.o mo86-out.o
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$des_obj = dx86-out.o yx86-out.o
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$aes_obj = ax86-out.o
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$bf_obj = bx86-out.o
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@@ -2601,7 +2601,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -2682,7 +2682,7 @@ $sys_id =
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$lflags = -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -2979,7 +2979,7 @@ $sys_id = MINGW32
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$lflags = -lwsock32 -lgdi32
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT EXPORT_VAR_AS_FN
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$cpuid_obj = x86cpuid-cof.o
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$bn_obj = bn86-cof.o co86-cof.o
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$bn_obj = bn86-cof.o co86-cof.o mo86-cof.o
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$des_obj = dx86-cof.o yx86-cof.o
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$aes_obj = ax86-cof.o
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$bf_obj = bx86-cof.o
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@@ -3384,7 +3384,7 @@ $sys_id =
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$lflags = -lsocket -lnsl
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$bn_ops = DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -3411,7 +3411,7 @@ $sys_id =
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$lflags = -lsocket -lnsl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -3627,7 +3627,7 @@ $sys_id =
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$lflags = -lsocket -lnsl -ldl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -3951,7 +3951,7 @@ $sys_id =
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$lflags = -lsocket -lnsl
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$bn_ops = BN_LLONG MD2_CHAR RC4_INDEX DES_PTR DES_RISC1 DES_UNROLL
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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@@ -3978,7 +3978,7 @@ $sys_id =
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$lflags = -lsocket -lnsl
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$bn_ops = BN_LLONG DES_PTR DES_RISC1 DES_UNROLL RC4_INDEX MD2_INT
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$cpuid_obj = x86cpuid-elf.o
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$bn_obj = bn86-elf.o co86-elf.o
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$bn_obj = bn86-elf.o co86-elf.o mo86-elf.o
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$des_obj = dx86-elf.o yx86-elf.o
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$aes_obj = ax86-elf.o
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$bf_obj = bx86-elf.o
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591
crypto/bn/asm/x86-mont.pl
Executable file
591
crypto/bn/asm/x86-mont.pl
Executable file
@@ -0,0 +1,591 @@
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#!/usr/bin/env perl
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# ====================================================================
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# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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# October 2005
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#
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# This is a "teaser" code, as it can be improved in several ways...
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# First of all non-SSE2 path should be implemented (yes, for now it
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# performs Montgomery multiplication/convolution only on SSE2-capable
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# CPUs such as P4, others fall down to original code). Then inner loop
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# can be unrolled and modulo-scheduled to improve ILP and possibly
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# moved to 128-bit XMM register bank (though it would require input
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# rearrangement and/or increase bus bandwidth utilization). Dedicated
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# squaring procedure should give further performance improvement...
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# Yet, for being draft, the code improves rsa512 *sign* benchmark by
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# 110%(!), rsa1024 one - by 70% and rsa4096 - by 20%:-)
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# December 2006
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#
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# Modulo-scheduling SSE2 loops results in further 15-20% improvement.
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# Integer-only code [being equipped with dedicated squaring procedure]
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# gives ~40% on rsa512 sign benchmark...
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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push(@INC,"${dir}","${dir}../../perlasm");
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require "x86asm.pl";
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&asm_init($ARGV[0],$0);
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$sse2=0;
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for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
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&external_label("OPENSSL_ia32cap_P") if ($sse2);
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&function_begin("bn_mul_mont");
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$i="edx";
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$j="ecx";
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$ap="esi"; $tp="esi"; # overlapping variables!!!
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$rp="edi"; $bp="edi"; # overlapping variables!!!
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$np="ebp";
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$num="ebx";
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$_num=&DWP(4*0,"esp"); # stack top layout
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||||
$_rp=&DWP(4*1,"esp");
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$_ap=&DWP(4*2,"esp");
|
||||
$_bp=&DWP(4*3,"esp");
|
||||
$_np=&DWP(4*4,"esp");
|
||||
$_n0=&DWP(4*5,"esp"); $_n0q=&QWP(4*5,"esp");
|
||||
$_sp=&DWP(4*6,"esp");
|
||||
$_bpend=&DWP(4*7,"esp");
|
||||
$frame=32; # size of above frame rounded up to 16n
|
||||
|
||||
&xor ("eax","eax");
|
||||
&mov ("edi",&wparam(5)); # int num
|
||||
&cmp ("edi",4);
|
||||
&jl (&label("just_leave"));
|
||||
|
||||
&lea ("esi",&wparam(0)); # put aside pointer to argument block
|
||||
&lea ("edx",&wparam(1)); # load ap
|
||||
&mov ("ebp","esp"); # saved stack pointer!
|
||||
&add ("edi",2); # extra two words on top of tp
|
||||
&neg ("edi");
|
||||
&lea ("esp",&DWP(-$frame,"esp","edi",4)); # alloca($frame+4*(num+2))
|
||||
&neg ("edi");
|
||||
|
||||
# minimize cache contention by arraning 2K window between stack
|
||||
# pointer and ap argument [np is also position sensitive vector,
|
||||
# but it's assumed to be near ap, as it's allocated at ~same
|
||||
# time].
|
||||
&mov ("eax","esp");
|
||||
&sub ("eax","edx");
|
||||
&and ("eax",2047);
|
||||
&sub ("esp","eax"); # this aligns sp and ap modulo 2048
|
||||
|
||||
&xor ("edx","esp");
|
||||
&and ("edx",2048);
|
||||
&xor ("edx",2048);
|
||||
&sub ("esp","edx"); # this splits them apart modulo 4096
|
||||
|
||||
&and ("esp",-64); # align to cache line
|
||||
|
||||
################################# load argument block...
|
||||
&mov ("eax",&DWP(0*4,"esi"));# BN_ULONG *rp
|
||||
&mov ("ebx",&DWP(1*4,"esi"));# const BN_ULONG *ap
|
||||
&mov ("ecx",&DWP(2*4,"esi"));# const BN_ULONG *bp
|
||||
&mov ("edx",&DWP(3*4,"esi"));# const BN_ULONG *np
|
||||
&mov ("esi",&DWP(4*4,"esi"));# const BN_ULONG *n0
|
||||
#&mov ("edi",&DWP(5*4,"esi"));# int num
|
||||
|
||||
&mov ("esi",&DWP(0,"esi")); # pull n0[0]
|
||||
&mov ($_rp,"eax"); # ... save a copy of argument block
|
||||
&mov ($_ap,"ebx");
|
||||
&mov ($_bp,"ecx");
|
||||
&mov ($_np,"edx");
|
||||
&mov ($_n0,"esi");
|
||||
&lea ($num,&DWP(-3,"edi")); # num=num-1 to assist modulo-scheduling
|
||||
#&mov ($_num,$num); # redundant as $num is not reused
|
||||
&mov ($_sp,"ebp"); # saved stack pointer!
|
||||
|
||||
if($sse2) {
|
||||
$acc0="mm0"; # mmx register bank layout
|
||||
$acc1="mm1";
|
||||
$car0="mm2";
|
||||
$car1="mm3";
|
||||
$mul0="mm4";
|
||||
$mul1="mm5";
|
||||
$temp="mm6";
|
||||
$mask="mm7";
|
||||
|
||||
&picmeup("eax","OPENSSL_ia32cap_P");
|
||||
&bt (&DWP(0,"eax"),26);
|
||||
&jnc (&label("non_sse2"));
|
||||
|
||||
&mov ("eax",-1);
|
||||
&movd ($mask,"eax"); # mask 32 lower bits
|
||||
|
||||
&mov ($ap,$_ap); # load input pointers
|
||||
&mov ($bp,$_bp);
|
||||
&mov ($np,$_np);
|
||||
|
||||
&xor ($i,$i); # i=0
|
||||
&xor ($j,$j); # j=0
|
||||
|
||||
&movd ($mul0,&DWP(0,$bp)); # bp[0]
|
||||
&movd ($mul1,&DWP(0,$ap)); # ap[0]
|
||||
&movd ($car1,&DWP(0,$np)); # np[0]
|
||||
|
||||
&pmuludq($mul1,$mul0); # ap[0]*bp[0]
|
||||
&movq ($car0,$mul1);
|
||||
&movq ($acc0,$mul1); # I wish movd worked for
|
||||
&pand ($acc0,$mask); # inter-register transfers
|
||||
|
||||
&pmuludq($mul1,$_n0q); # *=n0
|
||||
|
||||
&pmuludq($car1,$mul1); # "t[0]"*np[0]*n0
|
||||
&paddq ($car1,$acc0);
|
||||
|
||||
&movd ($acc1,&DWP(4,$np)); # np[1]
|
||||
&movd ($acc0,&DWP(4,$ap)); # ap[1]
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&inc ($j); # j++
|
||||
&set_label("1st",16);
|
||||
&pmuludq($acc0,$mul0); # ap[j]*bp[0]
|
||||
&pmuludq($acc1,$mul1); # np[j]*m1
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
|
||||
&movq ($acc0,$car0);
|
||||
&pand ($acc0,$mask);
|
||||
&movd ($acc1,&DWP(4,$np,$j,4)); # np[j+1]
|
||||
&paddq ($car1,$acc0); # +=ap[j]*bp[0];
|
||||
&movd ($acc0,&DWP(4,$ap,$j,4)); # ap[j+1]
|
||||
&psrlq ($car0,32);
|
||||
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[j-1]=
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&cmp ($j,$num);
|
||||
&jl (&label("1st"));
|
||||
|
||||
&pmuludq($acc0,$mul0); # ap[num-1]*bp[0]
|
||||
&pmuludq($acc1,$mul1); # np[num-1]*m1
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
|
||||
&movq ($acc0,$car0);
|
||||
&pand ($acc0,$mask);
|
||||
&paddq ($car1,$acc0); # +=ap[num-1]*bp[0];
|
||||
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[num-2]=
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&paddq ($car1,$car0);
|
||||
&movq (&QWP($frame,"esp",$num,4),$car1); # tp[num].tp[num-1]
|
||||
|
||||
&inc ($i); # i++
|
||||
&set_label("outer");
|
||||
&xor ($j,$j); # j=0
|
||||
|
||||
&movd ($mul0,&DWP(0,$bp,$i,4)); # bp[i]
|
||||
&movd ($mul1,&DWP(0,$ap)); # ap[0]
|
||||
&movd ($temp,&DWP($frame,"esp")); # tp[0]
|
||||
&movd ($car1,&DWP(0,$np)); # np[0]
|
||||
&pmuludq($mul1,$mul0); # ap[0]*bp[i]
|
||||
|
||||
&paddq ($mul1,$temp); # +=tp[0]
|
||||
&movq ($acc0,$mul1);
|
||||
&movq ($car0,$mul1);
|
||||
&pand ($acc0,$mask);
|
||||
|
||||
&pmuludq($mul1,$_n0q); # *=n0
|
||||
|
||||
&pmuludq($car1,$mul1);
|
||||
&paddq ($car1,$acc0);
|
||||
|
||||
&movd ($temp,&DWP($frame+4,"esp")); # tp[1]
|
||||
&movd ($acc1,&DWP(4,$np)); # np[1]
|
||||
&movd ($acc0,&DWP(4,$ap)); # ap[1]
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
&paddq ($car0,$temp); # +=tp[1]
|
||||
|
||||
&inc ($j); # j++
|
||||
&dec ($num);
|
||||
&set_label("inner");
|
||||
&pmuludq($acc0,$mul0); # ap[j]*bp[i]
|
||||
&pmuludq($acc1,$mul1); # np[j]*m1
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
|
||||
&movq ($acc0,$car0);
|
||||
&movd ($temp,&DWP($frame+4,"esp",$j,4));# tp[j+1]
|
||||
&pand ($acc0,$mask);
|
||||
&movd ($acc1,&DWP(4,$np,$j,4)); # np[j+1]
|
||||
&paddq ($car1,$acc0); # +=ap[j]*bp[i]+tp[j]
|
||||
&movd ($acc0,&DWP(4,$ap,$j,4)); # ap[j+1]
|
||||
&psrlq ($car0,32);
|
||||
&movd (&DWP($frame-4,"esp",$j,4),$car1);# tp[j-1]=
|
||||
&psrlq ($car1,32);
|
||||
&paddq ($car0,$temp); # +=tp[j+1]
|
||||
|
||||
&dec ($num);
|
||||
&lea ($j,&DWP(1,$j)); # j++
|
||||
&jnz (&label("inner"));
|
||||
|
||||
&mov ($num,$j);
|
||||
&pmuludq($acc0,$mul0); # ap[num-1]*bp[i]
|
||||
&pmuludq($acc1,$mul1); # np[num-1]*m1
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
|
||||
&movq ($acc0,$car0);
|
||||
&pand ($acc0,$mask);
|
||||
&paddq ($car1,$acc0); # +=ap[num-1]*bp[i]+tp[num-1]
|
||||
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[num-2]=
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&movd ($temp,&DWP($frame+4,"esp",$num,4)); # += tp[num]
|
||||
&paddq ($car1,$car0);
|
||||
&paddq ($car1,$temp);
|
||||
&movq (&QWP($frame,"esp",$num,4),$car1); # tp[num].tp[num-1]
|
||||
|
||||
&lea ($i,&DWP(1,$i)); # i++
|
||||
&cmp ($i,$num);
|
||||
&jle (&label("outer"));
|
||||
|
||||
&emms (); # done with mmx bank
|
||||
&jmp (&label("common_tail"));
|
||||
|
||||
&set_label("non_sse2",16);
|
||||
}
|
||||
|
||||
if (0) {
|
||||
&mov ("esp",$_sp);
|
||||
&xor ("eax","eax"); # signal "not fast enough [yet]"
|
||||
&jmp (&label("just_leave"));
|
||||
# While the below code provides competitive performance for
|
||||
# all key lengthes on modern Intel cores, it's still more
|
||||
# than 10% slower for 4096-bit key elsewhere:-( "Competitive"
|
||||
# means compared to the original integer-only assembler.
|
||||
# 512-bit RSA sign is better by ~40%, but that's about all
|
||||
# one can say about all CPUs...
|
||||
} else {
|
||||
$inp="esi"; # integer path uses these registers differently
|
||||
$word="edi";
|
||||
$carry="ebp";
|
||||
|
||||
&mov ($inp,$_ap);
|
||||
&lea ($carry,&DWP(1,$num));
|
||||
&mov ($word,$_bp);
|
||||
&xor ($j,$j); # j=0
|
||||
&mov ("edx",$inp);
|
||||
&and ($carry,1); # see if num is even
|
||||
&sub ("edx",$word); # see if ap==bp
|
||||
&lea ("eax",&DWP(4,$word,$num,4)); # &bp[num]
|
||||
&or ($carry,"edx");
|
||||
&mov ($word,&DWP(0,$word)); # bp[0]
|
||||
&jz (&label("bn_sqr_mont"));
|
||||
&mov ($_bpend,"eax");
|
||||
&mov ("eax",&DWP(0,$inp));
|
||||
&xor ("edx","edx");
|
||||
|
||||
&set_label("mull",16);
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[j]*bp[0]
|
||||
&add ($carry,"eax");
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&adc ("edx",0);
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j+1]
|
||||
&cmp ($j,$num);
|
||||
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
|
||||
&jl (&label("mull"));
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[num-1]*bp[0]
|
||||
&mov ($word,$_n0);
|
||||
&add ("eax",$carry);
|
||||
&mov ($inp,$_np);
|
||||
&adc ("edx",0);
|
||||
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
|
||||
|
||||
&mov (&DWP($frame,"esp",$num,4),"eax"); # tp[num-1]=
|
||||
&xor ($j,$j);
|
||||
&mov (&DWP($frame+4,"esp",$num,4),"edx"); # tp[num]=
|
||||
&mov (&DWP($frame+8,"esp",$num,4),$j); # tp[num+1]=
|
||||
|
||||
&mov ("eax",&DWP(0,$inp)); # np[0]
|
||||
&mul ($word); # np[0]*m
|
||||
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
|
||||
&mov ("eax",&DWP(4,$inp)); # np[1]
|
||||
&adc ("edx",0);
|
||||
&inc ($j);
|
||||
|
||||
&jmp (&label("2ndmadd"));
|
||||
|
||||
&set_label("1stmadd",16);
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[j]*bp[i]
|
||||
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j+1]
|
||||
&adc ("edx",0);
|
||||
&cmp ($j,$num);
|
||||
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
|
||||
&jl (&label("1stmadd"));
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[num-1]*bp[i]
|
||||
&add ("eax",&DWP($frame,"esp",$num,4)); # +=tp[num-1]
|
||||
&mov ($word,$_n0);
|
||||
&adc ("edx",0);
|
||||
&mov ($inp,$_np);
|
||||
&add ($carry,"eax");
|
||||
&adc ("edx",0);
|
||||
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
|
||||
|
||||
&xor ($j,$j);
|
||||
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
|
||||
&mov (&DWP($frame,"esp",$num,4),$carry); # tp[num-1]=
|
||||
&adc ($j,0);
|
||||
&mov ("eax",&DWP(0,$inp)); # np[0]
|
||||
&mov (&DWP($frame+4,"esp",$num,4),"edx"); # tp[num]=
|
||||
&mov (&DWP($frame+8,"esp",$num,4),$j); # tp[num+1]=
|
||||
|
||||
&mul ($word); # np[0]*m
|
||||
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
|
||||
&mov ("eax",&DWP(4,$inp)); # np[1]
|
||||
&adc ("edx",0);
|
||||
&mov ($j,1);
|
||||
|
||||
&set_label("2ndmadd",16);
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # np[j]*m
|
||||
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # np[j+1]
|
||||
&adc ("edx",0);
|
||||
&cmp ($j,$num);
|
||||
&mov (&DWP($frame-8,"esp",$j,4),$carry); # tp[j-1]=
|
||||
&jl (&label("2ndmadd"));
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # np[j]*m
|
||||
&add ($carry,&DWP($frame,"esp",$num,4)); # +=tp[num-1]
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&adc ("edx",0);
|
||||
&mov (&DWP($frame-4,"esp",$num,4),$carry); # tp[num-2]=
|
||||
|
||||
&xor ("eax","eax");
|
||||
&mov ($j,$_bp); # &bp[i]
|
||||
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
|
||||
&adc ("eax",&DWP($frame+8,"esp",$num,4)); # +=tp[num+1]
|
||||
&lea ($j,&DWP(4,$j));
|
||||
&mov (&DWP($frame,"esp",$num,4),"edx"); # tp[num-1]=
|
||||
&cmp ($j,$_bpend);
|
||||
&mov (&DWP($frame+4,"esp",$num,4),"eax"); # tp[num]=
|
||||
&je (&label("common_tail"));
|
||||
|
||||
&mov ($word,&DWP(0,$j)); # bp[i+1]
|
||||
&mov ($inp,$_ap);
|
||||
&mov ($_bp,$j); # &bp[++i]
|
||||
&xor ($j,$j);
|
||||
&xor ("edx","edx");
|
||||
&mov ("eax",&DWP(0,$inp));
|
||||
&jmp (&label("1stmadd"));
|
||||
|
||||
&set_label("bn_sqr_mont",16);
|
||||
$sbit=$num;
|
||||
&mov ($_num,$num);
|
||||
&mov ($_bp,$j); # i=0
|
||||
|
||||
&mov ("eax",$word); # ap[0]
|
||||
&mul ($word); # ap[0]*ap[0]
|
||||
&mov (&DWP($frame,"esp"),"eax"); # tp[0]=
|
||||
&mov ($sbit,"edx");
|
||||
&shr ("edx",1);
|
||||
&and ($sbit,1);
|
||||
&inc ($j);
|
||||
&set_label("sqr",16);
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j]
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[j]*ap[0]
|
||||
&add ("eax",$carry);
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&adc ("edx",0);
|
||||
&lea ($carry,&DWP(0,$sbit,"eax",2));
|
||||
&shr ("eax",31);
|
||||
&cmp ($j,$_num);
|
||||
&mov ($sbit,"eax");
|
||||
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
|
||||
&jl (&label("sqr"));
|
||||
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[num-1]
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[num-1]*ap[0]
|
||||
&add ("eax",$carry);
|
||||
&mov ($word,$_n0);
|
||||
&adc ("edx",0);
|
||||
&mov ($inp,$_np);
|
||||
&lea ($carry,&DWP(0,$sbit,"eax",2));
|
||||
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
|
||||
&shr ("eax",31);
|
||||
&mov (&DWP($frame,"esp",$j,4),$carry); # tp[num-1]=
|
||||
|
||||
&lea ($carry,&DWP(0,"eax","edx",2));
|
||||
&mov ("eax",&DWP(0,$inp)); # np[0]
|
||||
&shr ("edx",31);
|
||||
&mov (&DWP($frame+4,"esp",$j,4),$carry); # tp[num]=
|
||||
&mov (&DWP($frame+8,"esp",$j,4),"edx"); # tp[num+1]=
|
||||
|
||||
&mul ($word); # np[0]*m
|
||||
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
|
||||
&mov ($num,$j);
|
||||
&adc ("edx",0);
|
||||
&mov ("eax",&DWP(4,$inp)); # np[1]
|
||||
&mov ($j,1);
|
||||
|
||||
&set_label("3rdmadd",16);
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # np[j]*m
|
||||
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&mov ("eax",&DWP(4,$inp,$j,4)); # np[j+1]
|
||||
&adc ("edx",0);
|
||||
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j-1]=
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # np[j+1]*m
|
||||
&add ($carry,&DWP($frame+4,"esp",$j,4)); # +=tp[j+1]
|
||||
&lea ($j,&DWP(2,$j));
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # np[j+2]
|
||||
&adc ("edx",0);
|
||||
&cmp ($j,$num);
|
||||
&mov (&DWP($frame-8,"esp",$j,4),$carry); # tp[j]=
|
||||
&jl (&label("3rdmadd"));
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # np[j]*m
|
||||
&add ($carry,&DWP($frame,"esp",$num,4)); # +=tp[num-1]
|
||||
&adc ("edx",0);
|
||||
&add ($carry,"eax");
|
||||
&adc ("edx",0);
|
||||
&mov (&DWP($frame-4,"esp",$num,4),$carry); # tp[num-2]=
|
||||
|
||||
&mov ($j,$_bp); # i
|
||||
&xor ("eax","eax");
|
||||
&mov ($inp,$_ap);
|
||||
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
|
||||
&adc ("eax",&DWP($frame+8,"esp",$num,4)); # +=tp[num+1]
|
||||
&mov (&DWP($frame,"esp",$num,4),"edx"); # tp[num-1]=
|
||||
&cmp ($j,$num);
|
||||
&mov (&DWP($frame+4,"esp",$num,4),"eax"); # tp[num]=
|
||||
&je (&label("common_tail"));
|
||||
|
||||
&mov ($word,&DWP(4,$inp,$j,4)); # ap[i]
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&mov ("eax",$word);
|
||||
&mov ($_bp,$j); # ++i
|
||||
&mul ($word); # ap[i]*ap[i]
|
||||
&add ("eax",&DWP($frame,"esp",$j,4)); # +=tp[i]
|
||||
&adc ("edx",0);
|
||||
&mov (&DWP($frame,"esp",$j,4),"eax"); # tp[i]=
|
||||
&xor ($carry,$carry);
|
||||
&cmp ($j,$num);
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&je (&label("sqrlast"));
|
||||
|
||||
&mov ($sbit,"edx"); # zaps $num
|
||||
&shr ("edx",1);
|
||||
&and ($sbit,1);
|
||||
&set_label("sqradd",16);
|
||||
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j]
|
||||
&mov ($carry,"edx");
|
||||
&mul ($word); # ap[j]*ap[i]
|
||||
&add ("eax",$carry);
|
||||
&lea ($carry,&DWP(0,"eax","eax"));
|
||||
&adc ("edx",0);
|
||||
&shr ("eax",31);
|
||||
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&adc ("eax",0);
|
||||
&add ($carry,$sbit);
|
||||
&adc ("eax",0);
|
||||
&cmp ($j,$_num);
|
||||
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
|
||||
&mov ($sbit,"eax");
|
||||
&jle (&label("sqradd"));
|
||||
|
||||
&mov ($carry,"edx");
|
||||
&lea ("edx",&DWP(0,$sbit,"edx",2));
|
||||
&shr ($carry,31);
|
||||
&set_label("sqrlast");
|
||||
&mov ($word,$_n0);
|
||||
&mov ($inp,$_np);
|
||||
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
|
||||
|
||||
&add ("edx",&DWP($frame,"esp",$j,4)); # +=tp[num]
|
||||
&mov ("eax",&DWP(0,$inp)); # np[0]
|
||||
&adc ($carry,0);
|
||||
&mov (&DWP($frame,"esp",$j,4),"edx"); # tp[num]=
|
||||
&mov (&DWP($frame+4,"esp",$j,4),$carry); # tp[num+1]=
|
||||
|
||||
&mul ($word); # np[0]*m
|
||||
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
|
||||
&lea ($num,&DWP(-1,$j));
|
||||
&adc ("edx",0);
|
||||
&mov ($j,1);
|
||||
&mov ("eax",&DWP(4,$inp)); # np[1]
|
||||
|
||||
&jmp (&label("3rdmadd"));
|
||||
}
|
||||
|
||||
&set_label("common_tail",16);
|
||||
&mov ($np,$_np); # load modulus pointer
|
||||
&mov ($rp,$_rp); # load result pointer
|
||||
&lea ($tp,&DWP($frame,"esp")); # [$ap and $bp are zapped]
|
||||
|
||||
&mov ("eax",&DWP(0,$tp)); # tp[0]
|
||||
&mov ($j,$num); # j=num-1
|
||||
&xor ($i,$i); # i=0 and clear CF!
|
||||
|
||||
&set_label("sub",16);
|
||||
&sbb ("eax",&DWP(0,$np,$i,4));
|
||||
&mov (&DWP(0,$rp,$i,4),"eax"); # rp[i]=tp[i]-np[i]
|
||||
&dec ($j); # doesn't affect CF!
|
||||
&mov ("eax",&DWP(4,$tp,$i,4)); # tp[i+1]
|
||||
&lea ($i,&DWP(1,$i)); # i++
|
||||
&jge (&label("sub"));
|
||||
|
||||
&sbb ("eax",0); # handle upmost overflow bit
|
||||
&and ($tp,"eax");
|
||||
¬ ("eax");
|
||||
&mov ($np,$rp);
|
||||
&and ($np,"eax");
|
||||
&or ($tp,$np); # tp=carry?tp:rp
|
||||
|
||||
&set_label("copy",16); # copy or in-place refresh
|
||||
&mov ("eax",&DWP(0,$tp,$num,4));
|
||||
&mov (&DWP(0,$rp,$num,4),"eax"); # rp[i]=tp[i]
|
||||
&mov (&DWP($frame,"esp",$num,4),$j); # zap temporary vector
|
||||
&dec ($num);
|
||||
&jge (&label("copy"));
|
||||
|
||||
&mov ("esp",$_sp); # pull saved stack pointer
|
||||
&mov ("eax",1);
|
||||
&set_label("just_leave");
|
||||
&function_end("bn_mul_mont");
|
||||
|
||||
&asciz("Montgomery Multiplication for x86, CRYPTOGAMS by <appro\@openssl.org>");
|
||||
|
||||
&asm_finish();
|
||||
Reference in New Issue
Block a user