Throw in bn/asm/x86-mont.pl Montgomery multiplication "teaser".
This commit is contained in:
Andy Polyakov
parent
3f67e11fab
commit
54f3d200d3
@ -114,9 +114,9 @@ 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 x86_64-mont.o::aes-x86_64.o::md5-x86_64.o:sha256-x86_64.o sha512-x86_64.o::rc4-x86_64.o::";
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my $ia64_asm="ia64cpuid.o:bn-ia64.o::aes_core.o aes_cbc.o aes-ia64.o::md5-ia64.o:sha1-ia64.o sha256-ia64.o sha512-ia64.o::rc4-ia64.o::";
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@ -1171,7 +1171,7 @@ $bn_obj = $bn_asm unless $bn_obj ne "";
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$cflags.=" -DOPENSSL_BN_ASM_PART_WORDS" if ($bn_obj =~ /bn86/);
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$cflags.=" -DOPENSSL_IA32_SSE2" if (!$no_sse2 && $bn_obj =~ /bn86/);
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$cflags.=" -DOPENSSL_BN_ASM_MONT" if ($bn_obj =~ /\-mont/);
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$cflags.=" -DOPENSSL_BN_ASM_MONT" if ($bn_obj =~ /\-mont|mo86\-/);
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$des_obj=$des_enc unless ($des_obj =~ /\.o$/);
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$bf_obj=$bf_enc unless ($bf_obj =~ /\.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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@ -819,7 +819,7 @@ $sys_id =
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$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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@ -1008,7 +1008,7 @@ $sys_id =
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$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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@ -1197,7 +1197,7 @@ $sys_id =
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$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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@ -1278,7 +1278,7 @@ $sys_id =
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$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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@ -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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@ -1386,7 +1386,7 @@ $sys_id =
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$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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@ -1413,7 +1413,7 @@ $sys_id =
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$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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@ -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 =
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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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@ -1629,7 +1629,7 @@ $sys_id =
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$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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@ -1791,7 +1791,7 @@ $sys_id =
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$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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@ -2250,7 +2250,7 @@ $sys_id =
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$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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@ -2547,7 +2547,7 @@ $sys_id =
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$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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@ -2574,7 +2574,7 @@ $sys_id =
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$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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@ -2655,7 +2655,7 @@ $sys_id =
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$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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@ -2925,7 +2925,7 @@ $sys_id = MINGW32
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$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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@ -3330,7 +3330,7 @@ $sys_id =
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$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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@ -3357,7 +3357,7 @@ $sys_id =
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$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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@ -3573,7 +3573,7 @@ $sys_id =
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$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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@ -3897,7 +3897,7 @@ $sys_id =
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$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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@ -3924,7 +3924,7 @@ $sys_id =
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$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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@ -67,16 +67,22 @@ bn86-elf.s: asm/bn-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) bn-586.pl elf $(CFLAGS) > ../$@)
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co86-elf.s: asm/co-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) co-586.pl elf $(CFLAGS) > ../$@)
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mo86-elf.s: asm/x86-mont.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) x86-mont.pl elf $(CFLAGS) > ../$@)
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# COFF
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bn86-cof.s: asm/bn-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) bn-586.pl coff $(CFLAGS) > ../$@)
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co86-cof.s: asm/co-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) co-586.pl coff $(CFLAGS) > ../$@)
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mo86-cof.s: asm/x86-mont.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) x86-mont.pl coff $(CFLAGS) > ../$@)
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# a.out
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bn86-out.s: asm/bn-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) bn-586.pl a.out $(CFLAGS) > ../$@)
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co86-out.s: asm/co-586.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) co-586.pl a.out $(CFLAGS) > ../$@)
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mo86-out.s: asm/x86-mont.pl ../perlasm/x86asm.pl
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(cd asm; $(PERL) x86-mont.pl a.out $(CFLAGS) > ../$@)
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sparcv8.o: asm/sparcv8.S
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$(CC) $(CFLAGS) -c asm/sparcv8.S
|
||||
|
||||
238
crypto/bn/asm/x86-mont.pl
Executable file
238
crypto/bn/asm/x86-mont.pl
Executable file
@ -0,0 +1,238 @@
|
||||
#!/usr/bin/env perl
|
||||
|
||||
# ====================================================================
|
||||
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
|
||||
# project. Rights for redistribution and usage in source and binary
|
||||
# forms are granted according to the OpenSSL license.
|
||||
# ====================================================================
|
||||
|
||||
# This is a "teaser" code, as it can be improved in several ways...
|
||||
# First of all non-SSE2 path should be implemented (yes, for now it
|
||||
# performs Montgomery multiplication/convolution only on SSE2-capable
|
||||
# CPUs such as P4, others fall down to original code). Then inner loop
|
||||
# can be unrolled and modulo-scheduled to improve ILP and possibly
|
||||
# moved to 128-bit XMM register bank (though it would require input
|
||||
# rearrangement and/or increase bus bandwidth utilization). Dedicated
|
||||
# squaring procedure should give further performance improvement...
|
||||
# Yet, for being draft, the code improves rsa512 *sign* benchmark by
|
||||
# 110%(!), rsa1024 one - by 70% and rsa4096 - by 20%:-)
|
||||
|
||||
push(@INC,"perlasm","../../perlasm");
|
||||
require "x86asm.pl";
|
||||
|
||||
&asm_init($ARGV[0],$0);
|
||||
|
||||
$sse2=0;
|
||||
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
|
||||
|
||||
&external_label("OPENSSL_ia32cap_P") if ($sse2);
|
||||
|
||||
&function_begin("bn_mul_mont",$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
|
||||
|
||||
$i="ebx";
|
||||
$j="ecx";
|
||||
$ap="esi";
|
||||
$rp="edi"; $bp="edi"; # overlapping variables!!!
|
||||
$np="edx";
|
||||
$num="ebp";
|
||||
$tp="esp";
|
||||
|
||||
$bias=2; # amount of extra words in tp
|
||||
# (rounded up to even value)
|
||||
$_rp=&DWP(4*($bias+0),"esp",$num,4); # stack frame layout below tp
|
||||
$_ap=&DWP(4*($bias+1),"esp",$num,4);
|
||||
$_bp=&DWP(4*($bias+2),"esp",$num,4);
|
||||
$_np=&DWP(4*($bias+3),"esp",$num,4);
|
||||
$_n0=&DWP(4*($bias+4),"esp",$num,4);
|
||||
$_sp=&DWP(4*($bias+5),"esp",$num,4);
|
||||
|
||||
$acc0="mm0"; # mmx register bank layout
|
||||
$acc1="mm1";
|
||||
$car0="mm2";
|
||||
$car1="mm3";
|
||||
$mul0="mm4";
|
||||
$mul1="mm5";
|
||||
$temp="mm6";
|
||||
$mask="mm7";
|
||||
|
||||
if($sse2) {
|
||||
&picmeup("eax","OPENSSL_ia32cap_P");
|
||||
&bt (&DWP(0,"eax"),26);
|
||||
&mov ("eax",0); # zero signals "we did nothing"
|
||||
&jnc (&label("non_sse2"));
|
||||
|
||||
################################# load argument block...
|
||||
&mov ("eax",&wparam(0)); # BN_ULONG *rp
|
||||
&mov ("ebx",&wparam(1)); # const BN_ULONG *ap
|
||||
&mov ("ecx",&wparam(2)); # const BN_ULONG *bp
|
||||
&mov ("edx",&wparam(3)); # const BN_ULONG *np
|
||||
&mov ("esi",&wparam(4)); # BN_ULONG n0
|
||||
&mov ($num,&wparam(5)); # int num
|
||||
|
||||
&mov ("edi","esp"); # saved stack pointer!
|
||||
&add ($num,$bias+6);
|
||||
&neg ($num);
|
||||
&lea ("esp",&DWP(0,"esp",$num,4)); # alloca(4*(num+$bias+6))
|
||||
&neg ($num);
|
||||
&and ("esp",-1024); # minimize TLB utilization
|
||||
&sub ($num,$bias+6); # num is restored to its original value
|
||||
# and will remain constant from now...
|
||||
|
||||
&mov ($_rp,"eax"); # ... save a copy of argument block
|
||||
&mov ($_ap,"ebx");
|
||||
&mov ($_bp,"ecx");
|
||||
&mov ($_np,"edx");
|
||||
&mov ($_n0,"esi");
|
||||
&mov ($_sp,"edi"); # saved stack pointer!
|
||||
|
||||
&mov ("eax",-1);
|
||||
&movd ($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($mul1,$_n0); # *=n0
|
||||
|
||||
&pmuludq($car1,$mul1); # "t[0]"*np[0]*n0
|
||||
&paddq ($car1,$acc0);
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&inc ($j); # j++
|
||||
&set_label("1st");
|
||||
&movd ($acc0,&DWP(0,$ap,$j,4)); # ap[j]
|
||||
&movd ($acc1,&DWP(0,$np,$j,4)); # np[j]
|
||||
&pmuludq($acc0,$mul0); # ap[j]*bp[0]
|
||||
&pmuludq($acc1,$mul1); # np[j]*m1
|
||||
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&movq ($acc0,$car0);
|
||||
&pand ($acc0,$mask);
|
||||
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
&paddq ($car1,$acc0); # +=ap[j]*bp[0];
|
||||
&movd (&DWP(-4,"esp",$j,4),$car1); # tp[j-1]=
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&lea ($j,&DWP(1,$j));
|
||||
&cmp ($j,$num);
|
||||
&jl (&label("1st"));
|
||||
|
||||
&paddq ($car1,$car0);
|
||||
&movq (&DWP(-4,"esp",$num,4),$car1);
|
||||
|
||||
&inc ($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(0,"esp")); # tp[0]
|
||||
&movd ($car1,&DWP(0,$np,$j,4)); # np[0]
|
||||
&pmuludq($mul1,$mul0); # ap[0]*bp[i]
|
||||
|
||||
&paddq ($mul1,$temp); # +=tp[0]
|
||||
&movq ($acc0,$mul1);
|
||||
&movq ($car0,$mul1);
|
||||
&pand ($acc0,$mask);
|
||||
|
||||
&pmuludq($mul1,$_n0); # *=n0
|
||||
|
||||
&pmuludq($car1,$mul1);
|
||||
&paddq ($car1,$acc0);
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&inc ($j); # j++
|
||||
&set_label("inner");
|
||||
&movd ($acc0,&DWP(0,$ap,$j,4)); # ap[j]
|
||||
&movd ($acc1,&DWP(0,$np,$j,4)); # np[j]
|
||||
&movd ($temp,&DWP(0,"esp",$j,4)); # tp[j]
|
||||
&pmuludq($acc0,$mul0); # ap[j]*bp[i]
|
||||
&pmuludq($acc1,$mul1); # np[j]*m1
|
||||
&paddq ($car0,$temp); # +=tp[j]
|
||||
&paddq ($car0,$acc0); # +=c0
|
||||
&movq ($acc0,$car0);
|
||||
&pand ($acc0,$mask);
|
||||
|
||||
&paddq ($car1,$acc1); # +=c1
|
||||
&paddq ($car1,$acc0); # +=ap[j]*bp[i]+tp[j]
|
||||
&movd (&DWP(-4,"esp",$j,4),$car1); # tp[j-1]
|
||||
|
||||
&psrlq ($car0,32);
|
||||
&psrlq ($car1,32);
|
||||
|
||||
&lea ($j,&DWP(1,$j)); # j++
|
||||
&cmp ($j,$num);
|
||||
&jl (&label("inner"));
|
||||
|
||||
&movd ($temp,&DWP(0,"esp",$num,4));
|
||||
&paddq ($car1,$car0);
|
||||
&paddq ($car1,$temp);
|
||||
&movq (&DWP(-4,"esp",$num,4),$car1);
|
||||
|
||||
&lea ($i,&DWP(1,$i)); # i++
|
||||
&cmp ($i,$num);
|
||||
&jl (&label("outer"));
|
||||
|
||||
&emms (); # done with mmx bank
|
||||
|
||||
&mov ("esi",&DWP(0,"esp",$num,4)); # load upmost overflow bit
|
||||
&mov ($rp,$_rp); # load result pointer
|
||||
# [$ap and $bp are zapped]
|
||||
&xor ($i,$i); # i=0
|
||||
&lea ($j,&DWP(-1,$num)); # j=num-1
|
||||
&cmp ("esi",0); # clears CF unconditionally
|
||||
&jnz (&label("sub"));
|
||||
&mov ("eax",&DWP(0,"esp",$j,4));
|
||||
&cmp ("eax",&DWP(0,$np,$j,4)); # tp[num-1]-np[num-1]?
|
||||
&jae (&label("sub")); # if taken CF is cleared
|
||||
&set_label("copy");
|
||||
&mov ("eax",&DWP(0,"esp",$j,4));
|
||||
&mov (&DWP(0,$rp,$j,4),"eax"); # rp[i]=tp[i]
|
||||
&mov (&DWP(0,"esp",$j,4),$j); # zap temporary vector
|
||||
&dec ($j);
|
||||
&jge (&label("copy"));
|
||||
&jmp (&label("exit_sse2"));
|
||||
|
||||
&set_label("sub",4);
|
||||
&mov ("eax",&DWP(0,"esp",$i,4));
|
||||
&sbb ("eax",&DWP(0,$np,$i,4));
|
||||
&mov (&DWP(0,$rp,$i,4),"eax"); # rp[i]=tp[i]-np[i]
|
||||
&lea ($i,&DWP(1,$i)); # i++
|
||||
&dec ($j); # doesn't affect CF!
|
||||
&jge (&label("sub"));
|
||||
&lea ($j,&DWP(-1,$num)); # j=num-1
|
||||
&sbb ("esi",0); # esi holds upmost overflow bit
|
||||
&jc (&label("copy"));
|
||||
&set_label("zap");
|
||||
&mov (&DWP(0,"esp",$j,4),$i); # zap temporary vector
|
||||
&dec ($j);
|
||||
&jge (&label("zap"));
|
||||
|
||||
&set_label("exit_sse2");
|
||||
&mov ("esp",$_sp); # pull saved stack pointer
|
||||
&mov ("eax",1);
|
||||
&set_label("non_sse2");
|
||||
}
|
||||
|
||||
&function_end("bn_mul_mont");
|
||||
|
||||
&asm_finish();
|
||||
@ -215,7 +215,6 @@ sub main'cld { &out0("cld"); }
|
||||
# SSE2
|
||||
sub main'emms { &out0("emms"); }
|
||||
sub main'movd { &out2("movd",@_); }
|
||||
sub main'movq { &out2("movq",@_); }
|
||||
sub main'movdqu { &out2("movdqu",@_); }
|
||||
sub main'movdqa { &out2("movdqa",@_); }
|
||||
sub main'movdq2q{ &out2("movdq2q",@_); }
|
||||
@ -227,6 +226,13 @@ sub main'psllq { &out2("psllq",@_); }
|
||||
sub main'pxor { &out2("pxor",@_); }
|
||||
sub main'por { &out2("por",@_); }
|
||||
sub main'pand { &out2("pand",@_); }
|
||||
sub main'movq {
|
||||
local($p1,$p2)=@_;
|
||||
if ($p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
|
||||
# movq between mmx registers sinks Intel CPUs
|
||||
{ push(@out,"\tpshufw\t\$0xe4,%$p2,%$p1\n"); }
|
||||
else { &out2("movq",@_); }
|
||||
}
|
||||
|
||||
# The bswapl instruction is new for the 486. Emulate if i386.
|
||||
sub main'bswap
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user