2 * R4000 user level lock code
5 #define LL(base, rt) WORD $((060<<26)|((base)<<21)|((rt)<<16))
6 #define SC(base, rt) WORD $((070<<26)|((base)<<21)|((rt)<<16))
7 #define NOOP WORD $0x27
12 MOVW R1, R2 /* address of counter */
13 loop: MOVW n+4(FP), R3 /* increment */
25 MOVW R1, R2 /* address of counter */
37 MOVW R1, R2 /* address of counter */