Replace bn_sub_part_words() with bn_sub().

Now that bn_sub() handles word arrays with potentially different lengths,
we no longer need bn_sub_part_words() - call bn_sub() instead. This allows
us to entirely remove the unnecessarily complex bn_sub_part_words() code.

ok tb@

1 files changed, 0 insertions, 210 deletions

diff --git a/src/lib/libcrypto/bn/asm/bn-586.pl b/src/lib/libcrypto/bn/asm/bn-586.pl
index b502fe60ee..71b775af8d 100644
--- a/src/lib/libcrypto/bn/asm/bn-586.pl
+++ b/src/lib/libcrypto/bn/asm/bn-586.pl
@@ -17,7 +17,6 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
 &bn_div_words("bn_div_words");
 &bn_add_words("bn_add_words");
 &bn_sub_words("bn_sub_words");
-&bn_sub_part_words("bn_sub_part_words");
 
 &asm_finish();
 
@@ -566,212 +565,3 @@ sub bn_sub_words
 
         &function_end($name);
         }
-
-sub bn_sub_part_words
-        {
-        local($name)=@_;
-
-        &function_begin($name,"");
-
-        &comment("");
-        $a="esi";
-        $b="edi";
-        $c="eax";
-        $r="ebx";
-        $tmp1="ecx";
-        $tmp2="edx";
-        $num="ebp";
-
-        &mov($r,&wparam(0));    # get r
-         &mov($a,&wparam(1));   # get a
-        &mov($b,&wparam(2));    # get b
-         &mov($num,&wparam(3)); # get num
-        &xor($c,$c);            # clear carry
-         &and($num,0xfffffff8); # num / 8
-
-        &jz(&label("aw_finish"));
-
-        &set_label("aw_loop",0);
-        for ($i=0; $i<8; $i++)
-                {
-                &comment("Round $i");
-
-                &mov($tmp1,&DWP($i*4,$a,"",0));         # *a
-                 &mov($tmp2,&DWP($i*4,$b,"",0));        # *b
-                &sub($tmp1,$c);
-                 &mov($c,0);
-                &adc($c,$c);
-                 &sub($tmp1,$tmp2);
-                &adc($c,0);
-                 &mov(&DWP($i*4,$r,"",0),$tmp1);        # *r
-                }
-
-        &comment("");
-        &add($a,32);
-         &add($b,32);
-        &add($r,32);
-         &sub($num,8);
-        &jnz(&label("aw_loop"));
-
-        &set_label("aw_finish",0);
-        &mov($num,&wparam(3));  # get num
-        &and($num,7);
-         &jz(&label("aw_end"));
-
-        for ($i=0; $i<7; $i++)
-                {
-                &comment("Tail Round $i");
-                &mov($tmp1,&DWP(0,$a,"",0));    # *a
-                 &mov($tmp2,&DWP(0,$b,"",0));# *b
-                &sub($tmp1,$c);
-                 &mov($c,0);
-                &adc($c,$c);
-                 &sub($tmp1,$tmp2);
-                &adc($c,0);
-                &mov(&DWP(0,$r,"",0),$tmp1);    # *r
-                &add($a, 4);
-                &add($b, 4);
-                &add($r, 4);
-                 &dec($num) if ($i != 6);
-                 &jz(&label("aw_end")) if ($i != 6);
-                }
-        &set_label("aw_end",0);
-
-        &cmp(&wparam(4),0);
-        &je(&label("pw_end"));
-
-        &mov($num,&wparam(4));  # get dl
-        &cmp($num,0);
-        &je(&label("pw_end"));
-        &jge(&label("pw_pos"));
-
-        &comment("pw_neg");
-        &mov($tmp2,0);
-        &sub($tmp2,$num);
-        &mov($num,$tmp2);
-        &and($num,0xfffffff8);  # num / 8
-        &jz(&label("pw_neg_finish"));
-
-        &set_label("pw_neg_loop",0);
-        for ($i=0; $i<8; $i++)
-        {
-            &comment("dl<0 Round $i");
-
-            &mov($tmp1,0);
-            &mov($tmp2,&DWP($i*4,$b,"",0));     # *b
-            &sub($tmp1,$c);
-            &mov($c,0);
-            &adc($c,$c);
-            &sub($tmp1,$tmp2);
-            &adc($c,0);
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-        }
-            
-        &comment("");
-        &add($b,32);
-        &add($r,32);
-        &sub($num,8);
-        &jnz(&label("pw_neg_loop"));
-            
-        &set_label("pw_neg_finish",0);
-        &mov($tmp2,&wparam(4)); # get dl
-        &mov($num,0);
-        &sub($num,$tmp2);
-        &and($num,7);
-        &jz(&label("pw_end"));
-            
-        for ($i=0; $i<7; $i++)
-        {
-            &comment("dl<0 Tail Round $i");
-            &mov($tmp1,0);
-            &mov($tmp2,&DWP($i*4,$b,"",0));# *b
-            &sub($tmp1,$c);
-            &mov($c,0);
-            &adc($c,$c);
-            &sub($tmp1,$tmp2);
-            &adc($c,0);
-            &dec($num) if ($i != 6);
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-            &jz(&label("pw_end")) if ($i != 6);
-        }
-
-        &jmp(&label("pw_end"));
-        
-        &set_label("pw_pos",0);
-        
-        &and($num,0xfffffff8);  # num / 8
-        &jz(&label("pw_pos_finish"));
-
-        &set_label("pw_pos_loop",0);
-
-        for ($i=0; $i<8; $i++)
-        {
-            &comment("dl>0 Round $i");
-
-            &mov($tmp1,&DWP($i*4,$a,"",0));     # *a
-            &sub($tmp1,$c);
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-            &jnc(&label("pw_nc".$i));
-        }
-            
-        &comment("");
-        &add($a,32);
-        &add($r,32);
-        &sub($num,8);
-        &jnz(&label("pw_pos_loop"));
-            
-        &set_label("pw_pos_finish",0);
-        &mov($num,&wparam(4));  # get dl
-        &and($num,7);
-        &jz(&label("pw_end"));
-            
-        for ($i=0; $i<7; $i++)
-        {
-            &comment("dl>0 Tail Round $i");
-            &mov($tmp1,&DWP($i*4,$a,"",0));     # *a
-            &sub($tmp1,$c);
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-            &jnc(&label("pw_tail_nc".$i));
-            &dec($num) if ($i != 6);
-            &jz(&label("pw_end")) if ($i != 6);
-        }
-        &mov($c,1);
-        &jmp(&label("pw_end"));
-
-        &set_label("pw_nc_loop",0);
-        for ($i=0; $i<8; $i++)
-        {
-            &mov($tmp1,&DWP($i*4,$a,"",0));     # *a
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-            &set_label("pw_nc".$i,0);
-        }
-            
-        &comment("");
-        &add($a,32);
-        &add($r,32);
-        &sub($num,8);
-        &jnz(&label("pw_nc_loop"));
-            
-        &mov($num,&wparam(4));  # get dl
-        &and($num,7);
-        &jz(&label("pw_nc_end"));
-            
-        for ($i=0; $i<7; $i++)
-        {
-            &mov($tmp1,&DWP($i*4,$a,"",0));     # *a
-            &mov(&DWP($i*4,$r,"",0),$tmp1);     # *r
-            &set_label("pw_tail_nc".$i,0);
-            &dec($num) if ($i != 6);
-            &jz(&label("pw_nc_end")) if ($i != 6);
-        }
-
-        &set_label("pw_nc_end",0);
-        &mov($c,0);
-
-        &set_label("pw_end",0);
-
-#       &mov("eax",$c);         # $c is "eax"
-
-        &function_end($name);
-        }
-