561 	r1 = sp;  define
563 	r1 = r1 & r0;  define
654 	r1 = [sp + PT_R1];  define
755 	r1 = [sp + PT_R1];  define
859 	r1 = (EVT_IVG14 | EVT_IVG15) (z);  define
955 	r1 = LO(~0x8000) (Z);  define
956 	r1 = r0 & r1;  define
1039 	r1 = 0x17(Z);  define
1043 	r1 = 1;  define
1044 	r1 = r0 - r1;  define
1144 	r1 = FIXED_CODE_END;  define
1275 	r1 = RETX;  define