&xor ("eax","eax");
&bt ("ecx",21);
&jnc (&label("nocpuid"));
+ &mov ("esi",&wparam(0));
+ &mov (&DWP(8,"esi"),"eax"); # clear 3rd word
&cpuid ();
&mov ("edi","eax"); # max value for standard query level
&inc ("esi"); # number of cores
&mov ("eax",1);
+ &xor ("ecx","ecx");
&cpuid ();
&bt ("edx",28);
&jnc (&label("generic"));
&jmp (&label("generic"));
&set_label("intel");
+ &cmp ("edi",7);
+ &jb (&label("cacheinfo"));
+
+ &mov ("esi",&wparam(0));
+ &mov ("eax",7);
+ &xor ("ecx","ecx");
+ &cpuid ();
+ &mov (&DWP(8,"esi"),"ebx");
+
+&set_label("cacheinfo");
&cmp ("edi",4);
&mov ("edi",-1);
&jb (&label("nocacheinfo"));
&set_label("nocacheinfo");
&mov ("eax",1);
+ &xor ("ecx","ecx");
&cpuid ();
&and ("edx",0xbfefffff); # force reserved bits #20, #30 to 0
&cmp ("ebp",0);
&and ("esi",0xfeffffff); # clear FXSR
&set_label("clear_avx");
&and ("ebp",0xefffe7ff); # clear AVX, FMA and AMD XOP bits
+ &mov ("edi",&wparam(0));
+ &and (&DWP(8,"edi"),0xffffffdf); # clear AVX2
&set_label("done");
&mov ("eax","esi");
&mov ("edx","ebp");
&jnz (&label("nohalt")); # not enough privileges
&pushf ();
- &pop ("eax")
+ &pop ("eax");
&bt ("eax",9);
&jnc (&label("nohalt")); # interrupts are disabled
&function_begin_B("OPENSSL_far_spin");
&pushf ();
- &pop ("eax")
+ &pop ("eax");
&bt ("eax",9);
&jnc (&label("nospin")); # interrupts are disabled
# arguments is 1 or 2!
&function_begin_B("OPENSSL_indirect_call");
{
- my $i,$max=7; # $max has to be chosen as 4*n-1
+ my ($max,$i)=(7,); # $max has to be chosen as 4*n-1
# in order to preserve eventual
# stack alignment
&push ("ebp");
&ret ();
&function_end_B("OPENSSL_ia32_rdrand");
+&function_begin_B("OPENSSL_ia32_rdseed");
+ &mov ("ecx",8);
+&set_label("loop");
+ &rdseed ("eax");
+ &jc (&label("break"));
+ &loop (&label("loop"));
+&set_label("break");
+ &cmp ("eax",0);
+ &cmove ("eax","ecx");
+ &ret ();
+&function_end_B("OPENSSL_ia32_rdseed");
+
&initseg("OPENSSL_cpuid_setup");
+&hidden("OPENSSL_cpuid_setup");
+&hidden("OPENSSL_ia32cap_P");
+
&asm_finish();