// 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"

	"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",
	"REV",
	"REV16",
	"REV16W",

	{0xff200000, 0xcb000000, SUB, instArgs{arg_Xd, arg_Xn, arg_Xm_shift__LSL_0__LSR_1__ASR_2__0_63}, nil},
	// NGC <Wd>, <Wm>
	{0xffe0ffe0, 0x5a0003e0, NGC, instArgs{arg_Wd, arg_Wm}, nil},
	// SBC <Wd>, <Wn>, <Wm>
	{0xffe0fc00, 0x5a000000, SBC, instArgs{arg_Wd, arg_Wn, arg_Wm}, nil},
	// NGC <Xd>, <Xm>
	{0xffe0ffe0, 0xda0003e0, NGC, instArgs{arg_Xd, arg_Xm}, nil},
	// SBC <Xd>, <Xn>, <Xm>

	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
	NGCS R24, R16                              // f00318fa
	NOOP                                        // 1f2003d5

{"Name":"NGC","Bits":"0|1|0|1|1|0|1|0|0|0|0|Rm:5|0|0|0|0|0|0|1|1|1|1|1|Rd:5","Arch":"32-bit variant","Syntax":"NGC <Wd>, <Wm>","Code":"","Alias":"This instruction is an alias of the SBC instruction."},
{"Name":"NGC","Bits":"1|1|0|1|1|0|1|0|0|0|0|Rm:5|0|0|0|0|0|0|1|1|1|1|1|Rd:5","Arch":"64-bit variant","Syntax":"NGC <Xd>, <Xm>","Code":"","Alias":"This instruction is an alias of the SBC instruction."},

		{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.
		{name: "FABSD", argLength: 1, reg: fp11, asm: "FABSD"},                                // abs(arg0), float64