x86[_64]cpuid.pl: add function accessing rdrand instruction.

[openssl.git] / crypto / perlasm / x86asm.pl

diff --git a/crypto/perlasm/x86asm.pl b/crypto/perlasm/x86asm.pl
index 28080caaa60efbc07741573ca884a394873530f7..b7ddb8137f306011dfe327e3d431c3d213b437f4 100644 (file)
--- a/crypto/perlasm/x86asm.pl
+++ b/crypto/perlasm/x86asm.pl
@@ -80,6 +80,57 @@ sub ::movq
     {  &::generic("movq",@_);                  }
 }
 
+# SSE>2 instructions
+my %regrm = (  "eax"=>0, "ecx"=>1, "edx"=>2, "ebx"=>3,
+               "esp"=>4, "ebp"=>5, "esi"=>6, "edi"=>7  );
+sub ::pextrd
+{ my($dst,$src,$imm)=@_;
+    if ("$dst:$src" =~ /(e[a-dsd][ixp]):xmm([0-7])/)
+    {  &::data_byte(0x66,0x0f,0x3a,0x16,0xc0|($2<<3)|$regrm{$1},$imm); }
+    else
+    {  &::generic("pextrd",@_);                }
+}
+
+sub ::pinsrd
+{ my($dst,$src,$imm)=@_;
+    if ("$dst:$src" =~ /xmm([0-7]):(e[a-dsd][ixp])/)
+    {  &::data_byte(0x66,0x0f,0x3a,0x22,0xc0|($1<<3)|$regrm{$2},$imm); }
+    else
+    {  &::generic("pinsrd",@_);                }
+}
+
+sub ::pshufb
+{ my($dst,$src)=@_;
+    if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+    {  &data_byte(0x66,0x0f,0x38,0x00,0xc0|($1<<3)|$2);        }
+    else
+    {  &::generic("pshufb",@_);                }
+}
+
+sub ::palignr
+{ my($dst,$src,$imm)=@_;
+    if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+    {  &::data_byte(0x66,0x0f,0x3a,0x0f,0xc0|($1<<3)|$2,$imm); }
+    else
+    {  &::generic("palignr",@_);               }
+}
+
+sub ::pclmulqdq
+{ my($dst,$src,$imm)=@_;
+    if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+    {  &::data_byte(0x66,0x0f,0x3a,0x44,0xc0|($1<<3)|$2,$imm); }
+    else
+    {  &::generic("pclmulqdq",@_);             }
+}
+
+sub ::rdrand
+{ my ($dst)=@_;
+    if ($dst =~ /(e[a-dsd][ixp])/)
+    {  &::data_byte(0x0f,0xc7,0xf0|$regrm{$dst});      }
+    else
+    {  &::generic("rdrand",@_);        }
+}
+
 # label management
 $lbdecor="L";          # local label decoration, set by package
 $label="000";