17 &function_begin($name,"");
20 &sub($count,4,$count);
22 &blt($count,&label("finish"));
25 &ld($a0,&QWPw(0,$ap));
26 &ld($b0,&QWPw(0,$bp));
28 ##########################################################
31 ($a1,$tmp,$b1,$a2,$b2,$a3,$b3,$o0)=&NR(8);
32 &ld($a1,&QWPw(1,$ap));
33 &cmpult($a0,$b0,$tmp); # will we borrow?
34 &ld($b1,&QWPw(1,$bp));
35 &sub($a0,$b0,$a0); # do the subtract
36 &ld($a2,&QWPw(2,$ap));
37 &cmpult($a0,$cc,$b0); # will we borrow?
38 &ld($b2,&QWPw(2,$bp));
39 &sub($a0,$cc,$o0); # will we borrow?
40 &ld($a3,&QWPw(3,$ap));
41 &add($b0,$tmp,$cc); ($t1,$o1)=&NR(2); &FR($tmp);
43 &cmpult($a1,$b1,$t1); # will we borrow?
44 &sub($a1,$b1,$a1); # do the subtract
45 &ld($b3,&QWPw(3,$bp));
46 &cmpult($a1,$cc,$b1); # will we borrow?
47 &sub($a1,$cc,$o1); # will we borrow?
48 &add($b1,$t1,$cc); ($tmp,$o2)=&NR(2); &FR($t1,$a1,$b1);
50 &cmpult($a2,$b2,$tmp); # will we borrow?
51 &sub($a2,$b2,$a2); # do the subtract
52 &st($o0,&QWPw(0,$rp)); &FR($o0); # save
53 &cmpult($a2,$cc,$b2); # will we borrow?
54 &sub($a2,$cc,$o2); # will we borrow?
55 &add($b2,$tmp,$cc); ($t3,$o3)=&NR(2); &FR($tmp,$a2,$b2);
57 &cmpult($a3,$b3,$t3); # will we borrow?
58 &sub($a3,$b3,$a3); # do the subtract
59 &st($o1,&QWPw(1,$rp)); &FR($o1);
60 &cmpult($a3,$cc,$b3); # will we borrow?
61 &sub($a3,$cc,$o3); # will we borrow?
62 &add($b3,$t3,$cc); &FR($t3,$a3,$b3);
64 &st($o2,&QWPw(2,$rp)); &FR($o2);
65 &sub($count,4,$count); # count-=4
66 &st($o3,&QWPw(3,$rp)); &FR($o3);
67 &add($ap,4*$QWS,$ap); # count+=4
68 &add($bp,4*$QWS,$bp); # count+=4
69 &add($rp,4*$QWS,$rp); # count+=4
71 &blt($count,&label("finish"));
72 &ld($a0,&QWPw(0,$ap));
73 &ld($b0,&QWPw(0,$bp));
75 ##################################################
76 # Do the last 0..3 words
78 &set_label("last_loop");
80 &ld($a0,&QWPw(0,$ap)); # get a
81 &ld($b0,&QWPw(0,$bp)); # get b
82 &cmpult($a0,$b0,$tmp); # will we borrow?
83 &sub($a0,$b0,$a0); # do the subtract
84 &cmpult($a0,$cc,$b0); # will we borrow?
85 &sub($a0,$cc,$a0); # will we borrow?
86 &st($a0,&QWPw(0,$rp)); # save
87 &add($b0,$tmp,$cc); # add the borrows
92 &sub($count,1,$count);
93 &bgt($count,&label("last_loop"));
94 &function_end_A($name);
96 ######################################################
98 &add($count,4,$count);
99 &bgt($count,&label("last_loop"));
103 &function_end($name);