// amd64:"NEGL","SBBQ","NEGQ"
	// arm64:"NEGS","SBCS","NGC","NEG",-"ADD",-"SUB",-"CMP"
	// loong64:"SUBV","SGTU"
	// ppc64x:"SUBC", "SUBE", "SUBZE", "NEG"
	// s390x:"SUBE"
	// mips64:"SUBV","SGTU"
	// riscv64: "SUB","SLTU"
	return bits.Sub(x, y, ci)
}

func SubC(x, ci uint) (r, co uint) {
	// amd64:"NEGL","SBBQ","NEGQ"
	// arm64:"NEGS","SBCS","NGC","NEG",-"ADD",-"SUB",-"CMP"
	// loong64:"SUBV","SGTU"

	"MOVPQ",
	"MOVPS",
	"MOVPSW",
	"MOVPW",
	"MOVW",
	"MOVWU",
	"MOVZ",
	"MOVZW",
	"MRS",
	"MSR",
	"MSUB",
	"MSUBW",
	"MUL",
	"MULW",
	"MVN",
	"MVNW",
	"NEG",
	"NEGS",
	"NEGSW",
	"NEGW",
	"NGC",
	"NGCS",
	"NGCSW",
	"NGCW",
	"NOOP",
	"ORN",
	"ORNW",
	"ORR",
	"ORRW",
	"PRFM",
	"PRFUM",
	"RBIT",
	"RBITW",
	"REM",
	"REMW",

	MOVN:      "MOVN",
	MOVZ:      "MOVZ",
	MRS:       "MRS",
	MSR:       "MSR",
	MSUB:      "MSUB",
	MUL:       "MUL",
	MVN:       "MVN",
	MVNI:      "MVNI",
	NEG:       "NEG",
	NEGS:      "NEGS",
	NGC:       "NGC",
	NGCS:      "NGCS",
	NOP:       "NOP",
	NOT:       "NOT",
	ORN:       "ORN",
	ORR:       "ORR",
	PMUL:      "PMUL",
	PMULL:     "PMULL",
	PMULL2:    "PMULL2",

	NEG	R7@>2, R5                                        // ERROR "unsupported shift operator"
	NEGW	R7@>2, R5                                        // ERROR "unsupported shift operator"
	NEGS	R7@>2, R5                                        // ERROR "unsupported shift operator"
	NEGSW	R7@>2, R5                                        // ERROR "unsupported shift operator"

	MUL R4, R3, R0                             // 607c049b
	MVNW R3@>13, R8                            // e837e32a
	MVN R13>>31, R9                            // e97f6daa
	NEGSW R23<<1, R30                          // fe07176b
	NEGS R20>>35, R22                          // f68f54eb
	NGCW R13, R8                               // e8030d5a
	NGC R2, R7                                 // e70302da
	NGCSW R10, R5                              // e5030a7a

{"Name":"NEGS","Bits":"0|1|1|0|1|0|1|1|shift:2|0|Rm:5|imm6:6|1|1|1|1|1|Rd:5","Arch":"32-bit variant","Syntax":"NEGS <Wd>, <Wm>{, <shift> #<amount>}","Code":"","Alias":"This instruction is an alias of the SUBS (shifted register) instruction."},

		{name: "NEG", argLength: 1, reg: gp11, asm: "NEG"},                                    // -arg0
		{name: "NEGSflags", argLength: 1, reg: gp11flags, typ: "(UInt64,Flags)", asm: "NEGS"}, // -arg0, set flags.
		{name: "NGCzerocarry", argLength: 1, reg: gp0flags1, typ: "UInt64", asm: "NGC"},       // -1 if borrowing, 0 otherwise.