diff options
Diffstat (limited to 'crypto/bn/asm/alpha.works/add.pl')
| -rw-r--r-- | crypto/bn/asm/alpha.works/add.pl | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/crypto/bn/asm/alpha.works/add.pl b/crypto/bn/asm/alpha.works/add.pl new file mode 100644 index 0000000000..4dc76e6b69 --- /dev/null +++ b/crypto/bn/asm/alpha.works/add.pl @@ -0,0 +1,119 @@ +#!/usr/local/bin/perl +# alpha assember + +sub bn_add_words + { + local($name)=@_; + local($cc,$a,$b,$r); + + &init_pool(4); + ($cc)=GR("r0"); + + $rp=&wparam(0); + $ap=&wparam(1); + $bp=&wparam(2); + $count=&wparam(3); + + &function_begin($name,""); + + &comment(""); + &sub($count,4,$count); + &mov("zero",$cc); + &br(&label("finish")); + &blt($count,&label("finish")); + + ($a0,$b0)=&NR(2); + &ld($a0,&QWPw(0,$ap)); + &ld($b0,&QWPw(0,$bp)); + +########################################################## + &set_label("loop"); + + ($a1)=&NR(1); &ld($a1,&QWPw(1,$ap)); + ($b1)=&NR(1); &ld($b1,&QWPw(1,$bp)); + ($a2)=&NR(1); &ld($a2,&QWPw(2,$ap)); + ($b2)=&NR(1); &ld($b2,&QWPw(2,$bp)); + ($a3)=&NR(1); &ld($a3,&QWPw(3,$ap)); + ($b3)=&NR(1); &ld($b3,&QWPw(3,$bp)); + + ($o0,$t0)=&NR(2); + &add($a0,$b0,$o0); + &cmpult($o0,$b0,$t0); + &add($o0,$cc,$o0); + &cmpult($o0,$cc,$cc); + &add($cc,$t0,$cc); &FR($t0); + + ($t1,$o1)=&NR(2); + + &add($a1,$b1,$o1); &FR($a1); + &cmpult($o1,$b1,$t1); &FR($b1); + &add($o1,$cc,$o1); + &cmpult($o1,$cc,$cc); + &add($cc,$t1,$cc); &FR($t1); + + ($t2,$o2)=&NR(2); + + &add($a2,$b2,$o2); &FR($a2); + &cmpult($o2,$b2,$t2); &FR($b2); + &add($o2,$cc,$o2); + &cmpult($o2,$cc,$cc); + &add($cc,$t2,$cc); &FR($t2); + + ($t3,$o3)=&NR(2); + + &add($a3,$b3,$o3); &FR($a3); + &cmpult($o3,$b3,$t3); &FR($b3); + &add($o3,$cc,$o3); + &cmpult($o3,$cc,$cc); + &add($cc,$t3,$cc); &FR($t3); + + &st($o0,&QWPw(0,$rp)); &FR($o0); + &st($o1,&QWPw(0,$rp)); &FR($o1); + &st($o2,&QWPw(0,$rp)); &FR($o2); + &st($o3,&QWPw(0,$rp)); &FR($o3); + + &sub($count,4,$count); # count-=4 + &add($ap,4*$QWS,$ap); # count+=4 + &add($bp,4*$QWS,$bp); # count+=4 + &add($rp,4*$QWS,$rp); # count+=4 + + &blt($count,&label("finish")); + &ld($a0,&QWPw(0,$ap)); + &ld($b0,&QWPw(0,$bp)); + &br(&label("loop")); +################################################## + # Do the last 0..3 words + + ($t0,$o0)=&NR(2); + &set_label("last_loop"); + + &ld($a0,&QWPw(0,$ap)); # get a + &ld($b0,&QWPw(0,$bp)); # get b + + &add($a0,$b0,$o0); + &cmpult($o0,$b0,$t0); # will we borrow? + &add($o0,$cc,$o0); # will we borrow? + &cmpult($o0,$cc,$cc); # will we borrow? + &add($cc,$t0,$cc); # add the borrows + &st($o0,&QWPw(0,$rp)); # save + + &add($ap,$QWS,$ap); + &add($bp,$QWS,$bp); + &add($rp,$QWS,$rp); + &sub($count,1,$count); + &bgt($count,&label("last_loop")); + &function_end_A($name); + +###################################################### + &set_label("finish"); + &add($count,4,$count); + &bgt($count,&label("last_loop")); + + &FR($o0,$t0,$a0,$b0); + &set_label("end"); + &function_end($name); + + &fin_pool; + } + +1; |