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path: root/openssl/crypto/bn/asm/bn-586.pl
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Diffstat (limited to 'openssl/crypto/bn/asm/bn-586.pl')
-rw-r--r--openssl/crypto/bn/asm/bn-586.pl203
1 files changed, 151 insertions, 52 deletions
diff --git a/openssl/crypto/bn/asm/bn-586.pl b/openssl/crypto/bn/asm/bn-586.pl
index 26c2685a7..332ef3e91 100644
--- a/openssl/crypto/bn/asm/bn-586.pl
+++ b/openssl/crypto/bn/asm/bn-586.pl
@@ -1,6 +1,7 @@
#!/usr/local/bin/perl
-push(@INC,"perlasm","../../perlasm");
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],$0);
@@ -24,38 +25,25 @@ sub bn_mul_add_words
{
local($name)=@_;
- &function_begin($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
+ &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
- &comment("");
- $Low="eax";
- $High="edx";
- $a="ebx";
- $w="ebp";
- $r="edi";
- $c="esi";
-
- &xor($c,$c); # clear carry
- &mov($r,&wparam(0)); #
-
- &mov("ecx",&wparam(2)); #
- &mov($a,&wparam(1)); #
-
- &and("ecx",0xfffffff8); # num / 8
- &mov($w,&wparam(3)); #
-
- &push("ecx"); # Up the stack for a tmp variable
-
- &jz(&label("maw_finish"));
+ $r="eax";
+ $a="edx";
+ $c="ecx";
if ($sse2) {
&picmeup("eax","OPENSSL_ia32cap_P");
&bt(&DWP(0,"eax"),26);
- &jnc(&label("maw_loop"));
+ &jnc(&label("maw_non_sse2"));
- &movd("mm0",$w); # mm0 = w
+ &mov($r,&wparam(0));
+ &mov($a,&wparam(1));
+ &mov($c,&wparam(2));
+ &movd("mm0",&wparam(3)); # mm0 = w
&pxor("mm1","mm1"); # mm1 = carry_in
-
- &set_label("maw_sse2_loop",0);
+ &jmp(&label("maw_sse2_entry"));
+
+ &set_label("maw_sse2_unrolled",16);
&movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0]
&paddq("mm1","mm3"); # mm1 = carry_in + r[0]
&movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0]
@@ -112,42 +100,82 @@ sub bn_mul_add_words
&psrlq("mm1",32); # mm1 = carry6
&paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7]
&movd(&DWP(28,$r,"",0),"mm1");
- &add($r,32);
+ &lea($r,&DWP(32,$r));
&psrlq("mm1",32); # mm1 = carry_out
- &sub("ecx",8);
+ &sub($c,8);
+ &jz(&label("maw_sse2_exit"));
+ &set_label("maw_sse2_entry");
+ &test($c,0xfffffff8);
+ &jnz(&label("maw_sse2_unrolled"));
+
+ &set_label("maw_sse2_loop",4);
+ &movd("mm2",&DWP(0,$a)); # mm2 = a[i]
+ &movd("mm3",&DWP(0,$r)); # mm3 = r[i]
+ &pmuludq("mm2","mm0"); # a[i] *= w
+ &lea($a,&DWP(4,$a));
+ &paddq("mm1","mm3"); # carry += r[i]
+ &paddq("mm1","mm2"); # carry += a[i]*w
+ &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
+ &sub($c,1);
+ &psrlq("mm1",32); # carry = carry_high
+ &lea($r,&DWP(4,$r));
&jnz(&label("maw_sse2_loop"));
-
- &movd($c,"mm1"); # c = carry_out
+ &set_label("maw_sse2_exit");
+ &movd("eax","mm1"); # c = carry_out
&emms();
+ &ret();
- &jmp(&label("maw_finish"));
+ &set_label("maw_non_sse2",16);
}
- &set_label("maw_loop",0);
+ # function_begin prologue
+ &push("ebp");
+ &push("ebx");
+ &push("esi");
+ &push("edi");
+
+ &comment("");
+ $Low="eax";
+ $High="edx";
+ $a="ebx";
+ $w="ebp";
+ $r="edi";
+ $c="esi";
+
+ &xor($c,$c); # clear carry
+ &mov($r,&wparam(0)); #
+
+ &mov("ecx",&wparam(2)); #
+ &mov($a,&wparam(1)); #
+
+ &and("ecx",0xfffffff8); # num / 8
+ &mov($w,&wparam(3)); #
- &mov(&swtmp(0),"ecx"); #
+ &push("ecx"); # Up the stack for a tmp variable
+
+ &jz(&label("maw_finish"));
+
+ &set_label("maw_loop",16);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
- &mov("eax",&DWP($i,$a,"",0)); # *a
+ &mov("eax",&DWP($i,$a)); # *a
&mul($w); # *a * w
- &add("eax",$c); # L(t)+= *r
- &mov($c,&DWP($i,$r,"",0)); # L(t)+= *r
+ &add("eax",$c); # L(t)+= c
&adc("edx",0); # H(t)+=carry
- &add("eax",$c); # L(t)+=c
+ &add("eax",&DWP($i,$r)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
- &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
+ &mov(&DWP($i,$r),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
}
&comment("");
- &mov("ecx",&swtmp(0)); #
- &add($a,32);
- &add($r,32);
&sub("ecx",8);
+ &lea($a,&DWP(32,$a));
+ &lea($r,&DWP(32,$r));
&jnz(&label("maw_loop"));
&set_label("maw_finish",0);
@@ -160,16 +188,15 @@ sub bn_mul_add_words
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
- &mov("eax",&DWP($i*4,$a,"",0));# *a
+ &mov("eax",&DWP($i*4,$a)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
- &mov($c,&DWP($i*4,$r,"",0)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
- &add("eax",$c);
+ &add("eax",&DWP($i*4,$r)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
&dec("ecx") if ($i != 7-1);
- &mov(&DWP($i*4,$r,"",0),"eax"); # *r= L(t);
- &mov($c,"edx"); # c= H(t);
+ &mov(&DWP($i*4,$r),"eax"); # *r= L(t);
+ &mov($c,"edx"); # c= H(t);
&jz(&label("maw_end")) if ($i != 7-1);
}
&set_label("maw_end",0);
@@ -184,7 +211,45 @@ sub bn_mul_words
{
local($name)=@_;
- &function_begin($name,"");
+ &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
+
+ $r="eax";
+ $a="edx";
+ $c="ecx";
+
+ if ($sse2) {
+ &picmeup("eax","OPENSSL_ia32cap_P");
+ &bt(&DWP(0,"eax"),26);
+ &jnc(&label("mw_non_sse2"));
+
+ &mov($r,&wparam(0));
+ &mov($a,&wparam(1));
+ &mov($c,&wparam(2));
+ &movd("mm0",&wparam(3)); # mm0 = w
+ &pxor("mm1","mm1"); # mm1 = carry = 0
+
+ &set_label("mw_sse2_loop",16);
+ &movd("mm2",&DWP(0,$a)); # mm2 = a[i]
+ &pmuludq("mm2","mm0"); # a[i] *= w
+ &lea($a,&DWP(4,$a));
+ &paddq("mm1","mm2"); # carry += a[i]*w
+ &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
+ &sub($c,1);
+ &psrlq("mm1",32); # carry = carry_high
+ &lea($r,&DWP(4,$r));
+ &jnz(&label("mw_sse2_loop"));
+
+ &movd("eax","mm1"); # return carry
+ &emms();
+ &ret();
+ &set_label("mw_non_sse2",16);
+ }
+
+ # function_begin prologue
+ &push("ebp");
+ &push("ebx");
+ &push("esi");
+ &push("edi");
&comment("");
$Low="eax";
@@ -257,7 +322,40 @@ sub bn_sqr_words
{
local($name)=@_;
- &function_begin($name,"");
+ &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
+
+ $r="eax";
+ $a="edx";
+ $c="ecx";
+
+ if ($sse2) {
+ &picmeup("eax","OPENSSL_ia32cap_P");
+ &bt(&DWP(0,"eax"),26);
+ &jnc(&label("sqr_non_sse2"));
+
+ &mov($r,&wparam(0));
+ &mov($a,&wparam(1));
+ &mov($c,&wparam(2));
+
+ &set_label("sqr_sse2_loop",16);
+ &movd("mm0",&DWP(0,$a)); # mm0 = a[i]
+ &pmuludq("mm0","mm0"); # a[i] *= a[i]
+ &lea($a,&DWP(4,$a)); # a++
+ &movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i]
+ &sub($c,1);
+ &lea($r,&DWP(8,$r)); # r += 2
+ &jnz(&label("sqr_sse2_loop"));
+
+ &emms();
+ &ret();
+ &set_label("sqr_non_sse2",16);
+ }
+
+ # function_begin prologue
+ &push("ebp");
+ &push("ebx");
+ &push("esi");
+ &push("edi");
&comment("");
$r="esi";
@@ -313,12 +411,13 @@ sub bn_div_words
{
local($name)=@_;
- &function_begin($name,"");
+ &function_begin_B($name,"");
&mov("edx",&wparam(0)); #
&mov("eax",&wparam(1)); #
- &mov("ebx",&wparam(2)); #
- &div("ebx");
- &function_end($name);
+ &mov("ecx",&wparam(2)); #
+ &div("ecx");
+ &ret();
+ &function_end_B($name);
}
sub bn_add_words
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 16:00:33 +0000