#
# (*) rsax engine and fips numbers are presented for reference
# purposes;
-# (**) you might notice MULX code below, strangely enough gain is
-# marginal, which is why code remains disabled;
+# (**) MULX was attempted, but found to give only marginal improvement;
$flavour = shift;
$output = shift;
open OUT,"| $^X $xlate $flavour $output";
*STDOUT=*OUT;
+if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
+ $addx = ($1>=2.22);
+}
+
+if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
+ $addx = ($1>=2.10);
+}
+
+if (!$addx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
+ `ml64 2>&1` =~ /Version ([0-9]+)\./) {
+ $addx = ($1>=11);
+}
+
($out, $inp, $mod) = ("%rdi", "%rsi", "%rbp"); # common internal API
{
my ($out,$inp,$mod,$n0,$times) = ("%rdi","%rsi","%rdx","%rcx","%r8d");
$code.=<<___;
.text
+.extern OPENSSL_ia32cap_P
+
.globl rsaz_512_sqr
.type rsaz_512_sqr,\@function,4
.align 32
movq ($inp), %rdx
movq 8($inp), %rax
movq $n0, 128(%rsp)
+___
+$code.=<<___ if ($addx);
+ movl \$0x80100,%r11d
+ andl OPENSSL_ia32cap_P+8(%rip),%r11d
+ cmpl \$0x80100,%r11d # check for MULX and ADO/CX
+ je .Loop_sqrx
+___
+$code.=<<___;
jmp .Loop_sqr
.align 32
.Loop_sqr:
movl $times,128+8(%rsp)
-___
-if (1) {
-$code.=<<___;
#first iteration
movq %rdx, %rbx
mulq %rdx
movq %r13, 112(%rsp)
movq %r14, 120(%rsp)
+
+ movq (%rsp), %r8
+ movq 8(%rsp), %r9
+ movq 16(%rsp), %r10
+ movq 24(%rsp), %r11
+ movq 32(%rsp), %r12
+ movq 40(%rsp), %r13
+ movq 48(%rsp), %r14
+ movq 56(%rsp), %r15
+
+ call __rsaz_512_reduce
+
+ addq 64(%rsp), %r8
+ adcq 72(%rsp), %r9
+ adcq 80(%rsp), %r10
+ adcq 88(%rsp), %r11
+ adcq 96(%rsp), %r12
+ adcq 104(%rsp), %r13
+ adcq 112(%rsp), %r14
+ adcq 120(%rsp), %r15
+ sbbq %rcx, %rcx
+
+ call __rsaz_512_subtract
+
+ movq %r8, %rdx
+ movq %r9, %rax
+ movl 128+8(%rsp), $times
+ movq $out, $inp
+
+ decl $times
+ jnz .Loop_sqr
___
-} else {
+if ($addx) {
$code.=<<___;
+ jmp .Lsqr_tail
+
+.align 32
+.Loop_sqrx:
+ movl $times,128+8(%rsp)
movq $out, %xmm0 # off-load
+ movq %rbp, %xmm1 # off-load
#first iteration
mulx %rax, %r8, %r9
mulx 16($inp), %rcx, %r10
+ xor %rbp, %rbp # cf=0, of=0
mulx 24($inp), %rax, %r11
- add %rcx, %r9
+ adcx %rcx, %r9
mulx 32($inp), %rcx, %r12
- adc %rax, %r10
+ adcx %rax, %r10
mulx 40($inp), %rax, %r13
- adc %rcx, %r11
+ adcx %rcx, %r11
- mulx 48($inp), %rcx, %r14
- adc %rax, %r12
+ .byte 0xc4,0x62,0xf3,0xf6,0xb6,0x30,0x00,0x00,0x00 # mulx 48($inp), %rcx, %r14
+ adcx %rax, %r12
+ adcx %rcx, %r13
- mulx 56($inp), %rax, %r15
- adc %rcx, %r13
- mov %r9, %rcx
- adc %rax, %r14
- adc \$0, %r15
+ .byte 0xc4,0x62,0xfb,0xf6,0xbe,0x38,0x00,0x00,0x00 # mulx 56($inp), %rax, %r15
+ adcx %rax, %r14
+ adcx %rbp, %r15 # %rbp is 0
+ mov %r9, %rcx
shld \$1, %r8, %r9
shl \$1, %r8
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rdx, %r8
- adc \$0, %r9
+ adcx %rdx, %r8
+ mov 8($inp), %rdx
+ adcx %rbp, %r9
mov %rax, (%rsp)
mov %r8, 8(%rsp)
#second iteration
- mov 8($inp), %rdx
mulx 16($inp), %rax, %rbx
+ adox %rax, %r10
+ adcx %rbx, %r11
- mulx 24($inp), $out, %r8
- add %rax, %r10
- adc %rbx, %r11
- adc \$0, %r8
+ .byte 0xc4,0x62,0xc3,0xf6,0x86,0x18,0x00,0x00,0x00 # mulx 24($inp), $out, %r8
+ adox $out, %r11
+ adcx %r8, %r12
mulx 32($inp), %rax, %rbx
- add $out, %r11
- adc %r8, %r12
- adc \$0, %rbx
+ adox %rax, %r12
+ adcx %rbx, %r13
mulx 40($inp), $out, %r8
- add %rax, %r12
- adc %rbx, %r13
- adc \$0, %r8
+ adox $out, %r13
+ adcx %r8, %r14
- mulx 48($inp), %rax, %rbx
- add $out, %r13
- adc %r8, %r14
- adc \$0, %rbx
+ .byte 0xc4,0xe2,0xfb,0xf6,0x9e,0x30,0x00,0x00,0x00 # mulx 48($inp), %rax, %rbx
+ adox %rax, %r14
+ adcx %rbx, %r15
- mulx 56($inp), $out, %r8
- add %rax, %r14
- adc %rbx, %r15
- mov %r11, %rbx
- adc \$0, %r8
- add $out, %r15
- adc \$0, %r8
+ .byte 0xc4,0x62,0xc3,0xf6,0x86,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r8
+ adox $out, %r15
+ adcx %rbp, %r8
+ adox %rbp, %r8
+ mov %r11, %rbx
shld \$1, %r10, %r11
shld \$1, %rcx, %r10
+ xor %ebp,%ebp
mulx %rdx, %rax, %rcx
- add %rax, %r9
- adc %rcx, %r10
- adc \$0, %r11
+ mov 16($inp), %rdx
+ adcx %rax, %r9
+ adcx %rcx, %r10
+ adcx %rbp, %r11
mov %r9, 16(%rsp)
- mov %r10, 24(%rsp)
+ .byte 0x4c,0x89,0x94,0x24,0x18,0x00,0x00,0x00 # mov %r10, 24(%rsp)
#third iteration
- mov 16($inp), %rdx
- mulx 24($inp), $out, %r9
+ .byte 0xc4,0x62,0xc3,0xf6,0x8e,0x18,0x00,0x00,0x00 # mulx 24($inp), $out, %r9
+ adox $out, %r12
+ adcx %r9, %r13
mulx 32($inp), %rax, %rcx
- add $out, %r12
- adc %r9, %r13
- adc \$0, %rcx
+ adox %rax, %r13
+ adcx %rcx, %r14
mulx 40($inp), $out, %r9
- add %rax, %r13
- adc %rcx, %r14
- adc \$0, %r9
+ adox $out, %r14
+ adcx %r9, %r15
- mulx 48($inp), %rax, %rcx
- add $out, %r14
- adc %r9, %r15
- adc \$0, %rcx
+ .byte 0xc4,0xe2,0xfb,0xf6,0x8e,0x30,0x00,0x00,0x00 # mulx 48($inp), %rax, %rcx
+ adox %rax, %r15
+ adcx %rcx, %r8
- mulx 56($inp), $out, %r9
- add %rax, %r15
- adc %rcx, %r8
- mov %r13, %rcx
- adc \$0, %r9
- add $out, %r8
- adc \$0, %r9
+ .byte 0xc4,0x62,0xc3,0xf6,0x8e,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r9
+ adox $out, %r8
+ adcx %rbp, %r9
+ adox %rbp, %r9
+ mov %r13, %rcx
shld \$1, %r12, %r13
shld \$1, %rbx, %r12
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rax, %r11
- adc %rdx, %r12
- adc \$0, %r13
+ adcx %rax, %r11
+ adcx %rdx, %r12
+ mov 24($inp), %rdx
+ adcx %rbp, %r13
mov %r11, 32(%rsp)
- mov %r12, 40(%rsp)
+ .byte 0x4c,0x89,0xa4,0x24,0x28,0x00,0x00,0x00 # mov %r12, 40(%rsp)
#fourth iteration
- mov 24($inp), %rdx
- mulx 32($inp), %rax, %rbx
+ .byte 0xc4,0xe2,0xfb,0xf6,0x9e,0x20,0x00,0x00,0x00 # mulx 32($inp), %rax, %rbx
+ adox %rax, %r14
+ adcx %rbx, %r15
mulx 40($inp), $out, %r10
- add %rax, %r14
- adc %rbx, %r15
- adc \$0, %r10
+ adox $out, %r15
+ adcx %r10, %r8
mulx 48($inp), %rax, %rbx
- add $out, %r15
- adc %r10, %r8
- adc \$0, %rbx
+ adox %rax, %r8
+ adcx %rbx, %r9
mulx 56($inp), $out, %r10
- add %rax, %r8
- adc \$0, %rbx
- add $out, %r9
- adc \$0, %r10
- add %rbx, %r9
- mov %r15, %rbx
- adc \$0, %r10
+ adox $out, %r9
+ adcx %rbp, %r10
+ adox %rbp, %r10
+ .byte 0x66
+ mov %r15, %rbx
shld \$1, %r14, %r15
shld \$1, %rcx, %r14
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rax, %r13
- adc %rdx, %r14
- adc \$0, %r15
+ adcx %rax, %r13
+ adcx %rdx, %r14
+ mov 32($inp), %rdx
+ adcx %rbp, %r15
mov %r13, 48(%rsp)
mov %r14, 56(%rsp)
#fifth iteration
- mov 32($inp), %rdx
- mulx 40($inp), $out, %r11
+ .byte 0xc4,0x62,0xc3,0xf6,0x9e,0x28,0x00,0x00,0x00 # mulx 40($inp), $out, %r11
+ adox $out, %r8
+ adcx %r11, %r9
mulx 48($inp), %rax, %rcx
- add $out, %r8
- adc %r11, %r9
- adc \$0, %rcx
+ adox %rax, %r9
+ adcx %rcx, %r10
mulx 56($inp), $out, %r11
- add %rax, %r9
- adc %rcx, %r10
- adc \$0, %r11
- add $out, %r10
- adc \$0, %r11
+ adox $out, %r10
+ adcx %rbp, %r11
+ adox %rbp, %r11
mov %r9, %rcx
shld \$1, %r8, %r9
shld \$1, %rbx, %r8
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rax, %r15
- adc %rdx, %r8
- adc \$0, %r9
+ adcx %rax, %r15
+ adcx %rdx, %r8
+ mov 40($inp), %rdx
+ adcx %rbp, %r9
mov %r15, 64(%rsp)
mov %r8, 72(%rsp)
#sixth iteration
- mov 40($inp), %rdx
- mulx 48($inp), %rax, %rbx
+ .byte 0xc4,0xe2,0xfb,0xf6,0x9e,0x30,0x00,0x00,0x00 # mulx 48($inp), %rax, %rbx
+ adox %rax, %r10
+ adcx %rbx, %r11
- mulx 56($inp), $out, %r12
- add %rax, %r10
- adc %rbx, %r11
- adc \$0, %r12
- add $out, %r11
- adc \$0, %r12
+ .byte 0xc4,0x62,0xc3,0xf6,0xa6,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r12
+ adox $out, %r11
+ adcx %rbp, %r12
+ adox %rbp, %r12
mov %r11, %rbx
shld \$1, %r10, %r11
shld \$1, %rcx, %r10
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rax, %r9
- adc %rdx, %r10
- adc \$0, %r11
+ adcx %rax, %r9
+ adcx %rdx, %r10
+ mov 48($inp), %rdx
+ adcx %rbp, %r11
mov %r9, 80(%rsp)
mov %r10, 88(%rsp)
#seventh iteration
- mov 48($inp), %rdx
- mulx 56($inp), %rax, %r13
- add %rax, %r12
- adc \$0, %r13
+ .byte 0xc4,0x62,0xfb,0xf6,0xae,0x38,0x00,0x00,0x00 # mulx 56($inp), %rax, %r13
+ adox %rax, %r12
+ adox %rbp, %r13
xor %r14, %r14
shld \$1, %r13, %r14
shld \$1, %r12, %r13
shld \$1, %rbx, %r12
+ xor %ebp, %ebp
mulx %rdx, %rax, %rdx
- add %rax, %r11
- adc %rdx, %r12
- adc \$0, %r13
+ adcx %rax, %r11
+ adcx %rdx, %r12
+ mov 56($inp), %rdx
+ adcx %rbp, %r13
- mov %r11, 96(%rsp)
- mov %r12, 104(%rsp)
+ .byte 0x4c,0x89,0x9c,0x24,0x60,0x00,0x00,0x00 # mov %r11, 96(%rsp)
+ .byte 0x4c,0x89,0xa4,0x24,0x68,0x00,0x00,0x00 # mov %r12, 104(%rsp)
#eighth iteration
- mov 56($inp), %rdx
mulx %rdx, %rax, %rdx
- add %rax, %r13
- adc \$0, %rdx
-
+ adox %rax, %r13
+ adox %rbp, %rdx
+
+ .byte 0x66
add %rdx, %r14
movq %r13, 112(%rsp)
movq %r14, 120(%rsp)
movq %xmm0, $out
-___
-}
-$code.=<<___;
+ movq %xmm1, %rbp
+
+ movq 128(%rsp), %rdx # pull $n0
movq (%rsp), %r8
movq 8(%rsp), %r9
movq 16(%rsp), %r10
movq 48(%rsp), %r14
movq 56(%rsp), %r15
- call _rsaz_512_reduce
+ call __rsaz_512_reducex
addq 64(%rsp), %r8
adcq 72(%rsp), %r9
adcq 120(%rsp), %r15
sbbq %rcx, %rcx
- call _rsaz_512_subtract
+ call __rsaz_512_subtract
movq %r8, %rdx
movq %r9, %rax
movq $out, $inp
decl $times
- jnz .Loop_sqr
+ jnz .Loop_sqrx
+
+.Lsqr_tail:
+___
+}
+$code.=<<___;
leaq 128+24+48(%rsp), %rax
movq -48(%rax), %r15
movq $out, %xmm0 # off-load arguments
movq $mod, %xmm1
movq $n0, 128(%rsp)
-
+___
+$code.=<<___ if ($addx);
+ movl \$0x80100,%r11d
+ andl OPENSSL_ia32cap_P+8(%rip),%r11d
+ cmpl \$0x80100,%r11d # check for MULX and ADO/CX
+ je .Lmulx
+___
+$code.=<<___;
+ movq ($bp), %rbx # pass b[0]
movq $bp, %rbp # pass argument
call __rsaz_512_mul
movq 48(%rsp), %r14
movq 56(%rsp), %r15
- call _rsaz_512_reduce
+ call __rsaz_512_reduce
+___
+$code.=<<___ if ($addx);
+ jmp .Lmul_tail
+.align 32
+.Lmulx:
+ movq $bp, %rbp # pass argument
+ movq ($bp), %rdx # pass b[0]
+ call __rsaz_512_mulx
+
+ movq %xmm0, $out
+ movq %xmm1, %rbp
+
+ movq 128(%rsp), %rdx # pull $n0
+ movq (%rsp), %r8
+ movq 8(%rsp), %r9
+ movq 16(%rsp), %r10
+ movq 24(%rsp), %r11
+ movq 32(%rsp), %r12
+ movq 40(%rsp), %r13
+ movq 48(%rsp), %r14
+ movq 56(%rsp), %r15
+
+ call __rsaz_512_reducex
+.Lmul_tail:
+___
+$code.=<<___;
addq 64(%rsp), %r8
adcq 72(%rsp), %r9
adcq 80(%rsp), %r10
adcq 120(%rsp), %r15
sbbq %rcx, %rcx
- call _rsaz_512_subtract
+ call __rsaz_512_subtract
leaq 128+24+48(%rsp), %rax
movq -48(%rax), %r15
subq \$128+24, %rsp
.Lmul_gather4_body:
+___
+$code.=<<___ if ($addx);
+ movl \$0x80100,%r11d
+ andl OPENSSL_ia32cap_P+8(%rip),%r11d
+ cmpl \$0x80100,%r11d # check for MULX and ADO/CX
+ je .Lmulx_gather
+___
+$code.=<<___;
movl 64($bp,$pwr,4), %eax
movq $out, %xmm0 # off-load arguments
movl ($bp,$pwr,4), %ebx
movq 48(%rsp), %r14
movq 56(%rsp), %r15
- call _rsaz_512_reduce
+ call __rsaz_512_reduce
+___
+$code.=<<___ if ($addx);
+ jmp .Lmul_gather_tail
+
+.align 32
+.Lmulx_gather:
+ mov 64($bp,$pwr,4), %eax
+ movq $out, %xmm0 # off-load arguments
+ lea 128($bp,$pwr,4), %rbp
+ mov ($bp,$pwr,4), %edx
+ movq $mod, %xmm1
+ mov $n0, 128(%rsp)
+
+ shl \$32, %rax
+ or %rax, %rdx
+ mulx ($ap), %rbx, %r8 # 0 iteration
+ mov %rbx, (%rsp)
+ xor %edi, %edi # cf=0, of=0
+
+ mulx 8($ap), %rax, %r9
+ movd (%rbp), %xmm4
+
+ mulx 16($ap), %rbx, %r10
+ movd 64(%rbp), %xmm5
+ adcx %rax, %r8
+
+ mulx 24($ap), %rax, %r11
+ pslldq \$4, %xmm5
+ adcx %rbx, %r9
+
+ mulx 32($ap), %rbx, %r12
+ por %xmm5, %xmm4
+ adcx %rax, %r10
+
+ mulx 40($ap), %rax, %r13
+ adcx %rbx, %r11
+
+ mulx 48($ap), %rbx, %r14
+ lea 128(%rbp), %rbp
+ adcx %rax, %r12
+
+ mulx 56($ap), %rax, %r15
+ movq %xmm4, %rdx
+ adcx %rbx, %r13
+ adcx %rax, %r14
+ mov %r8, %rbx
+ adcx %rdi, %r15 # %rdi is 0
+
+ mov \$-7, %rcx
+ jmp .Loop_mulx_gather
+
+.align 32
+.Loop_mulx_gather:
+ mulx ($ap), %rax, %r8
+ adcx %rax, %rbx
+ adox %r9, %r8
+
+ mulx 8($ap), %rax, %r9
+ .byte 0x66,0x0f,0x6e,0xa5,0x00,0x00,0x00,0x00 # movd (%rbp), %xmm4
+ adcx %rax, %r8
+ adox %r10, %r9
+ mulx 16($ap), %rax, %r10
+ movd 64(%rbp), %xmm5
+ lea 128(%rbp), %rbp
+ adcx %rax, %r9
+ adox %r11, %r10
+
+ .byte 0xc4,0x62,0xfb,0xf6,0x9e,0x18,0x00,0x00,0x00 # mulx 24($ap), %rax, %r11
+ pslldq \$4, %xmm5
+ por %xmm5, %xmm4
+ adcx %rax, %r10
+ adox %r12, %r11
+
+ mulx 32($ap), %rax, %r12
+ adcx %rax, %r11
+ adox %r13, %r12
+
+ mulx 40($ap), %rax, %r13
+ adcx %rax, %r12
+ adox %r14, %r13
+
+ .byte 0xc4,0x62,0xfb,0xf6,0xb6,0x30,0x00,0x00,0x00 # mulx 48($ap), %rax, %r14
+ adcx %rax, %r13
+ adox %r15, %r14
+
+ mulx 56($ap), %rax, %r15
+ movq %xmm4, %rdx
+ mov %rbx, 64(%rsp,%rcx,8)
+ adcx %rax, %r14
+ adox %rdi, %r15
+ mov %r8, %rbx
+ adcx %rdi, %r15 # cf=0
+
+ inc %rcx # of=0
+ jnz .Loop_mulx_gather
+
+ mov %r8, 64(%rsp)
+ mov %r9, 64+8(%rsp)
+ mov %r10, 64+16(%rsp)
+ mov %r11, 64+24(%rsp)
+ mov %r12, 64+32(%rsp)
+ mov %r13, 64+40(%rsp)
+ mov %r14, 64+48(%rsp)
+ mov %r15, 64+56(%rsp)
+
+ movq %xmm0, $out
+ movq %xmm1, %rbp
+
+ mov 128(%rsp), %rdx # pull $n0
+ mov (%rsp), %r8
+ mov 8(%rsp), %r9
+ mov 16(%rsp), %r10
+ mov 24(%rsp), %r11
+ mov 32(%rsp), %r12
+ mov 40(%rsp), %r13
+ mov 48(%rsp), %r14
+ mov 56(%rsp), %r15
+
+ call __rsaz_512_reducex
+
+.Lmul_gather_tail:
+___
+$code.=<<___;
addq 64(%rsp), %r8
adcq 72(%rsp), %r9
adcq 80(%rsp), %r10
adcq 120(%rsp), %r15
sbbq %rcx, %rcx
- call _rsaz_512_subtract
+ call __rsaz_512_subtract
leaq 128+24+48(%rsp), %rax
movq -48(%rax), %r15
movq $n0, 128(%rsp)
movq $out, %rbp
+___
+$code.=<<___ if ($addx);
+ movl \$0x80100,%r11d
+ andl OPENSSL_ia32cap_P+8(%rip),%r11d
+ cmpl \$0x80100,%r11d # check for MULX and ADO/CX
+ je .Lmulx_scatter
+___
+$code.=<<___;
+ movq ($out),%rbx # pass b[0]
call __rsaz_512_mul
movq %xmm0, $out
movq 48(%rsp), %r14
movq 56(%rsp), %r15
- call _rsaz_512_reduce
+ call __rsaz_512_reduce
+___
+$code.=<<___ if ($addx);
+ jmp .Lmul_scatter_tail
+
+.align 32
+.Lmulx_scatter:
+ movq ($out), %rdx # pass b[0]
+ call __rsaz_512_mulx
+
+ movq %xmm0, $out
+ movq %xmm1, %rbp
+
+ movq 128(%rsp), %rdx # pull $n0
+ movq (%rsp), %r8
+ movq 8(%rsp), %r9
+ movq 16(%rsp), %r10
+ movq 24(%rsp), %r11
+ movq 32(%rsp), %r12
+ movq 40(%rsp), %r13
+ movq 48(%rsp), %r14
+ movq 56(%rsp), %r15
+
+ call __rsaz_512_reducex
+.Lmul_scatter_tail:
+___
+$code.=<<___;
addq 64(%rsp), %r8
adcq 72(%rsp), %r9
adcq 80(%rsp), %r10
movq %xmm2, $inp
sbbq %rcx, %rcx
- call _rsaz_512_subtract
+ call __rsaz_512_subtract
movl %r8d, 64*0($inp) # scatter
shrq \$32, %r8
subq \$128+24, %rsp
.Lmul_by_one_body:
+___
+$code.=<<___ if ($addx);
+ movl OPENSSL_ia32cap_P+8(%rip),%eax
+___
+$code.=<<___;
movq $mod, %rbp # reassign argument
movq $n0, 128(%rsp)
movdqa %xmm0, 64(%rsp)
movdqa %xmm0, 80(%rsp)
movdqa %xmm0, 96(%rsp)
-
- call _rsaz_512_reduce
-
+___
+$code.=<<___ if ($addx);
+ andl \$0x80100,%eax
+ cmpl \$0x80100,%eax # check for MULX and ADO/CX
+ je .Lby_one_callx
+___
+$code.=<<___;
+ call __rsaz_512_reduce
+___
+$code.=<<___ if ($addx);
+ jmp .Lby_one_tail
+.align 32
+.Lby_one_callx:
+ movq 128(%rsp), %rdx # pull $n0
+ call __rsaz_512_reducex
+.Lby_one_tail:
+___
+$code.=<<___;
movq %r8, ($out)
movq %r9, 8($out)
movq %r10, 16($out)
.size rsaz_512_mul_by_one,.-rsaz_512_mul_by_one
___
}
-{ # _rsaz_512_reduce
+{ # __rsaz_512_reduce
#
# input: %r8-%r15, %rbp - mod, 128(%rsp) - n0
# output: %r8-%r15
# clobbers: everything except %rbp and %rdi
$code.=<<___;
-.type _rsaz_512_reduce,\@abi-omnipotent
+.type __rsaz_512_reduce,\@abi-omnipotent
.align 32
-_rsaz_512_reduce:
-___
-if (1) {
-$code.=<<___;
+__rsaz_512_reduce:
movq %r8, %rbx
imulq 128+8(%rsp), %rbx
movq 0(%rbp), %rax
adcq \$0, %rdx
addq %r11, %r10
movq 128+8(%rsp), %rsi
+ #movq %rdx, %r11
+ #adcq \$0, %r11
+ adcq \$0, %rdx
movq %rdx, %r11
- adcq \$0, %r11
mulq %rbx
addq %rax, %r12
decl %ecx
jne .Lreduction_loop
+
+ ret
+.size __rsaz_512_reduce,.-__rsaz_512_reduce
___
-} else {
+}
+if ($addx) {
+ # __rsaz_512_reducex
+ #
+ # input: %r8-%r15, %rbp - mod, 128(%rsp) - n0
+ # output: %r8-%r15
+ # clobbers: everything except %rbp and %rdi
$code.=<<___;
- movq 128+8(%rsp), %rdx # pull $n0
+.type __rsaz_512_reducex,\@abi-omnipotent
+.align 32
+__rsaz_512_reducex:
+ #movq 128+8(%rsp), %rdx # pull $n0
imulq %r8, %rdx
+ xorq %rsi, %rsi # cf=0,of=0
movl \$8, %ecx
- jmp .Lreduction_loop
+ jmp .Lreduction_loopx
.align 32
-.Lreduction_loop:
- neg %r8
+.Lreduction_loopx:
+ mov %r8, %rbx
mulx 0(%rbp), %rax, %r8
- adc %r9, %r8
+ adcx %rbx, %rax
+ adox %r9, %r8
mulx 8(%rbp), %rax, %r9
- adc \$0, %r9
- add %rax, %r8
- adc %r10, %r9
-
- mulx 16(%rbp), %rax, %r10
- adc \$0, %r10
- mov 128+8(%rsp), %rbx # pull $n0
- imul %r8, %rbx
- add %rax, %r9
- adc %r11, %r10
-
- mulx 24(%rbp), %rax, %r11
- adc \$0, %r11
- add %rax, %r10
- adc %r12, %r11
-
- mulx 32(%rbp), %rax, %r12
- adc \$0, %r12
- add %rax, %r11
- adc %r13, %r12
+ adcx %rax, %r8
+ adox %r10, %r9
+
+ mulx 16(%rbp), %rbx, %r10
+ adcx %rbx, %r9
+ adox %r11, %r10
+
+ mulx 24(%rbp), %rbx, %r11
+ adcx %rbx, %r10
+ adox %r12, %r11
+
+ .byte 0xc4,0x62,0xe3,0xf6,0xa5,0x20,0x00,0x00,0x00 # mulx 32(%rbp), %rbx, %r12
+ mov %rdx, %rax
+ mov %r8, %rdx
+ adcx %rbx, %r11
+ adox %r13, %r12
+
+ mulx 128+8(%rsp), %rbx, %rdx
+ mov %rax, %rdx
mulx 40(%rbp), %rax, %r13
- adc \$0, %r13
- add %rax, %r12
- adc %r14, %r13
+ adcx %rax, %r12
+ adox %r14, %r13
- mulx 48(%rbp), %rax, %r14
- adc \$0, %r14
- add %rax, %r13
- adc %r15, %r14
+ .byte 0xc4,0x62,0xfb,0xf6,0xb5,0x30,0x00,0x00,0x00 # mulx 48(%rbp), %rax, %r14
+ adcx %rax, %r13
+ adox %r15, %r14
mulx 56(%rbp), %rax, %r15
mov %rbx, %rdx
- adc \$0, %r15
- add %rax, %r14
- adc \$0, %r15
+ adcx %rax, %r14
+ adox %rsi, %r15 # %rsi is 0
+ adcx %rsi, %r15 # cf=0
+
+ decl %ecx # of=0
+ jne .Lreduction_loopx
- dec %ecx
- jne .Lreduction_loop
-___
-}
-$code.=<<___;
ret
-.size _rsaz_512_reduce,.-_rsaz_512_reduce
+.size __rsaz_512_reducex,.-__rsaz_512_reducex
___
}
-{ # _rsaz_512_subtract
+{ # __rsaz_512_subtract
# input: %r8-%r15, %rdi - $out, %rbp - $mod, %rcx - mask
# output:
# clobbers: everything but %rdi, %rsi and %rbp
$code.=<<___;
-.type _rsaz_512_subtract,\@abi-omnipotent
+.type __rsaz_512_subtract,\@abi-omnipotent
.align 32
-_rsaz_512_subtract:
+__rsaz_512_subtract:
movq %r8, ($out)
movq %r9, 8($out)
movq %r10, 16($out)
movq %r15, 56($out)
ret
-.size _rsaz_512_subtract,.-_rsaz_512_subtract
+.size __rsaz_512_subtract,.-__rsaz_512_subtract
___
}
{ # __rsaz_512_mul
__rsaz_512_mul:
leaq 8(%rsp), %rdi
- movq ($bp), %rbx
movq ($ap), %rax
mulq %rbx
movq %rax, (%rdi)
.size __rsaz_512_mul,.-__rsaz_512_mul
___
}
+if ($addx) {
+ # __rsaz_512_mulx
+ #
+ # input: %rsi - ap, %rbp - bp
+ # ouput:
+ # clobbers: everything
+my ($ap,$bp,$zero) = ("%rsi","%rbp","%rdi");
+$code.=<<___;
+.type __rsaz_512_mulx,\@abi-omnipotent
+.align 32
+__rsaz_512_mulx:
+ mulx ($ap), %rbx, %r8 # initial %rdx preloaded by caller
+ xor $zero, $zero # cf=0,of=0
+
+ mulx 8($ap), %rax, %r9
+ movq %rbx, 8(%rsp)
+
+ mulx 16($ap), %rbx, %r10
+ adcx %rax, %r8
+
+ mulx 24($ap), %rax, %r11
+ adcx %rbx, %r9
+
+ .byte 0xc4,0x62,0xe3,0xf6,0xa6,0x20,0x00,0x00,0x00 # mulx 32($ap), %rbx, %r12
+ adcx %rax, %r10
+
+ mulx 40($ap), %rax, %r13
+ adcx %rbx, %r11
+
+ mulx 48($ap), %rbx, %r14
+ adcx %rax, %r12
+
+ mulx 56($ap), %rax, %r15
+ mov 8($bp), %rdx
+ adcx %rbx, %r13
+ adcx %rax, %r14
+ adcx $zero, %r15 # cf=0
+
+ mov \$-6, %rcx
+ jmp .Loop_mulx
+
+.align 32
+.Loop_mulx:
+ movq %r8, %rbx
+ mulx ($ap), %rax, %r8
+ adcx %rax, %rbx
+ adox %r9, %r8
+
+ mulx 8($ap), %rax, %r9
+ adcx %rax, %r8
+ adox %r10, %r9
+
+ mulx 16($ap), %rax, %r10
+ adcx %rax, %r9
+ adox %r11, %r10
+
+ mulx 24($ap), %rax, %r11
+ adcx %rax, %r10
+ adox %r12, %r11
+
+ .byte 0x3e,0xc4,0x62,0xfb,0xf6,0xa6,0x20,0x00,0x00,0x00 # mulx 32($ap), %rax, %r12
+ adcx %rax, %r11
+ adox %r13, %r12
+
+ mulx 40($ap), %rax, %r13
+ adcx %rax, %r12
+ adox %r14, %r13
+
+ mulx 48($ap), %rax, %r14
+ adcx %rax, %r13
+ adox %r15, %r14
+
+ mulx 56($ap), %rax, %r15
+ movq 64($bp,%rcx,8), %rdx
+ movq %rbx, 8+64-8(%rsp,%rcx,8)
+ adcx %rax, %r14
+ adox $zero, %r15
+ adcx $zero, %r15 # cf=0
+
+ inc %rcx # of=0
+ jnz .Loop_mulx
+
+ movq %r8, %rbx
+ mulx ($ap), %rax, %r8
+ adcx %rax, %rbx
+ adox %r9, %r8
+
+ .byte 0xc4,0x62,0xfb,0xf6,0x8e,0x08,0x00,0x00,0x00 # mulx 8($ap), %rax, %r9
+ adcx %rax, %r8
+ adox %r10, %r9
+
+ .byte 0xc4,0x62,0xfb,0xf6,0x96,0x10,0x00,0x00,0x00 # mulx 16($ap), %rax, %r10
+ adcx %rax, %r9
+ adox %r11, %r10
+
+ mulx 24($ap), %rax, %r11
+ adcx %rax, %r10
+ adox %r12, %r11
+
+ mulx 32($ap), %rax, %r12
+ adcx %rax, %r11
+ adox %r13, %r12
+
+ mulx 40($ap), %rax, %r13
+ adcx %rax, %r12
+ adox %r14, %r13
+
+ .byte 0xc4,0x62,0xfb,0xf6,0xb6,0x30,0x00,0x00,0x00 # mulx 48($ap), %rax, %r14
+ adcx %rax, %r13
+ adox %r15, %r14
+
+ .byte 0xc4,0x62,0xfb,0xf6,0xbe,0x38,0x00,0x00,0x00 # mulx 56($ap), %rax, %r15
+ adcx %rax, %r14
+ adox $zero, %r15
+ adcx $zero, %r15
+
+ mov %rbx, 8+64-8(%rsp)
+ mov %r8, 8+64(%rsp)
+ mov %r9, 8+64+8(%rsp)
+ mov %r10, 8+64+16(%rsp)
+ mov %r11, 8+64+24(%rsp)
+ mov %r12, 8+64+32(%rsp)
+ mov %r13, 8+64+40(%rsp)
+ mov %r14, 8+64+48(%rsp)
+ mov %r15, 8+64+56(%rsp)
+
+ ret
+.size __rsaz_512_mulx,.-__rsaz_512_mulx
+___
+}
{
my ($out,$inp,$power)= $win64 ? ("%rcx","%rdx","%r8d") : ("%rdi","%rsi","%edx");
$code.=<<___;
projects / openssl / commitdiff