25 SP = SP;  define
39 R5 = SP;
49 SP = R5;  define
98 SP = M2;  define
107 SP = L2;  define
134 I2 = SP;
143 M2 = SP;
152 B2 = SP;
161 L2 = SP;
194 SP = USP;  define
202 USP = SP;
249 RETN = SP;
257 LB1 = SP;
258 CYCLES = SP;