1*0Sstevel@tonic-gate#!/usr/local/bin/perl 2*0Sstevel@tonic-gate# x86 assember 3*0Sstevel@tonic-gate 4*0Sstevel@tonic-gatesub bn_mul_words 5*0Sstevel@tonic-gate { 6*0Sstevel@tonic-gate local($name)=@_; 7*0Sstevel@tonic-gate 8*0Sstevel@tonic-gate &function_begin($name,""); 9*0Sstevel@tonic-gate 10*0Sstevel@tonic-gate &comment(""); 11*0Sstevel@tonic-gate $Low="eax"; 12*0Sstevel@tonic-gate $High="edx"; 13*0Sstevel@tonic-gate $a="ebx"; 14*0Sstevel@tonic-gate $w="ecx"; 15*0Sstevel@tonic-gate $r="edi"; 16*0Sstevel@tonic-gate $c="esi"; 17*0Sstevel@tonic-gate $num="ebp"; 18*0Sstevel@tonic-gate 19*0Sstevel@tonic-gate &xor($c,$c); # clear carry 20*0Sstevel@tonic-gate &mov($r,&wparam(0)); # 21*0Sstevel@tonic-gate &mov($a,&wparam(1)); # 22*0Sstevel@tonic-gate &mov($num,&wparam(2)); # 23*0Sstevel@tonic-gate &mov($w,&wparam(3)); # 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate &and($num,0xfffffff8); # num / 8 26*0Sstevel@tonic-gate &jz(&label("mw_finish")); 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate &set_label("mw_loop",0); 29*0Sstevel@tonic-gate for ($i=0; $i<32; $i+=4) 30*0Sstevel@tonic-gate { 31*0Sstevel@tonic-gate &comment("Round $i"); 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate &mov("eax",&DWP($i,$a,"",0)); # *a 34*0Sstevel@tonic-gate &mul($w); # *a * w 35*0Sstevel@tonic-gate &add("eax",$c); # L(t)+=c 36*0Sstevel@tonic-gate # XXX 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate &adc("edx",0); # H(t)+=carry 39*0Sstevel@tonic-gate &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t); 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate &mov($c,"edx"); # c= H(t); 42*0Sstevel@tonic-gate } 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate &comment(""); 45*0Sstevel@tonic-gate &add($a,32); 46*0Sstevel@tonic-gate &add($r,32); 47*0Sstevel@tonic-gate &sub($num,8); 48*0Sstevel@tonic-gate &jz(&label("mw_finish")); 49*0Sstevel@tonic-gate &jmp(&label("mw_loop")); 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate &set_label("mw_finish",0); 52*0Sstevel@tonic-gate &mov($num,&wparam(2)); # get num 53*0Sstevel@tonic-gate &and($num,7); 54*0Sstevel@tonic-gate &jnz(&label("mw_finish2")); 55*0Sstevel@tonic-gate &jmp(&label("mw_end")); 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate &set_label("mw_finish2",1); 58*0Sstevel@tonic-gate for ($i=0; $i<7; $i++) 59*0Sstevel@tonic-gate { 60*0Sstevel@tonic-gate &comment("Tail Round $i"); 61*0Sstevel@tonic-gate &mov("eax",&DWP($i*4,$a,"",0));# *a 62*0Sstevel@tonic-gate &mul($w); # *a * w 63*0Sstevel@tonic-gate &add("eax",$c); # L(t)+=c 64*0Sstevel@tonic-gate # XXX 65*0Sstevel@tonic-gate &adc("edx",0); # H(t)+=carry 66*0Sstevel@tonic-gate &mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t); 67*0Sstevel@tonic-gate &mov($c,"edx"); # c= H(t); 68*0Sstevel@tonic-gate &dec($num) if ($i != 7-1); 69*0Sstevel@tonic-gate &jz(&label("mw_end")) if ($i != 7-1); 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate &set_label("mw_end",0); 72*0Sstevel@tonic-gate &mov("eax",$c); 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate &function_end($name); 75*0Sstevel@tonic-gate } 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate1; 78