192 R1 = USP;
193 P2 = USP;
194 SP = USP;
195 FP = USP;
196 A0.X = USP;
197 A1.W = USP;
200 USP = R2;  define
201 USP = P4;  define
202 USP = SP;  define
203 USP = FP;  define
204 USP = A0.X;  define
205 USP = A1.W;  define