#define PH V31 #define CAR1 V6 #define SEL V8 #define ZER V9 // func p256NegCond(val *p256Point, cond int) TEXT ·p256NegCond(SB), NOSPLIT, $0-16 MOVD val+0(FP), P1ptr MOVD $16, R16 // Copy cond into SEL (cond is R1 + 8 (cond offset) + 32) MOVD $40, R17 LXVDSX (R1)(R17), SEL // Zeroize ZER VSPLTISB $0, ZER // SEL controls whether to return the original value (Y1H/Y1L) // or the negated value (T1H/T1L). VCMPEQUD SEL, ZER, SEL MOVD $p256mul<>+0x00(SB), CPOOL LXVD2X (P1ptr)(R0), Y1L LXVD2X (P1ptr)(R16), Y1H...