22  *	Optimized for IP headers, which always checksum on 4 octet boundaries.
33 "	ldws,ma		4(%1), %0\n"  in ip_fast_csum()
34 "	addib,<=	-4, %2, 2f\n"  in ip_fast_csum()
36 "	ldws		4(%1), %4\n"  in ip_fast_csum()
38 "	add		%0, %4, %0\n"  in ip_fast_csum()
39 "	ldws,ma		12(%1), %3\n"  in ip_fast_csum()
42 "1:	ldws,ma		4(%1), %3\n"  in ip_fast_csum()
46 "	extru		%0, 31, 16, %4\n"  in ip_fast_csum()
48 "	addc		%4, %5, %0\n"  in ip_fast_csum()
126 	** Try to keep 4 registers with "live" values ahead of the ALU.  in csum_ipv6_magic()
130 "	ldd,ma		8(%1), %4\n"	/* get 1st saddr word */  in csum_ipv6_magic()
131 "	ldd,ma		8(%2), %5\n"	/* get 1st daddr word */  in csum_ipv6_magic()
132 "	add		%4, %0, %0\n"  in csum_ipv6_magic()
133 "	ldd,ma		8(%1), %6\n"	/* 2nd saddr */  in csum_ipv6_magic()
134 "	ldd,ma		8(%2), %7\n"	/* 2nd daddr */  in csum_ipv6_magic()
139 "	extrd,u		%0, 31, 32, %4\n"/* copy upper half down */  in csum_ipv6_magic()
141 "	add,dc		%4, %0, %0\n"	/* fold into 32-bits, plus carry */  in csum_ipv6_magic()
151 "	ldw,ma		4(%1), %4\n"	/* get 1st saddr word */  in csum_ipv6_magic()
152 "	ldw,ma		4(%2), %5\n"	/* get 1st daddr word */  in csum_ipv6_magic()
153 "	add		%4, %0, %0\n"  in csum_ipv6_magic()
154 "	ldw,ma		4(%1), %6\n"	/* 2nd saddr */  in csum_ipv6_magic()
156 "	ldw,ma		4(%2), %7\n"	/* 2nd daddr */  in csum_ipv6_magic()
158 "	ldw,ma		4(%1), %4\n"	/* 3rd saddr */  in csum_ipv6_magic()
160 "	ldw,ma		4(%2), %5\n"	/* 3rd daddr */  in csum_ipv6_magic()
161 "	addc		%4, %0, %0\n"  in csum_ipv6_magic()
162 "	ldw,ma		4(%1), %6\n"	/* 4th saddr */  in csum_ipv6_magic()
164 "	ldw,ma		4(%2), %7\n"	/* 4th daddr */  in csum_ipv6_magic()