register["FS9"] = riscv.REG_FS9
	register["FS10"] = riscv.REG_FS10
	register["FS11"] = riscv.REG_FS11
	register["FT8"] = riscv.REG_FT8
	register["FT9"] = riscv.REG_FT9
	register["FT10"] = riscv.REG_FT10
	register["FT11"] = riscv.REG_FT11

	// Pseudo-registers.
	register["SB"] = RSB
	register["FP"] = RFP
	register["PC"] = RPC

	instructions := make(map[string]obj.As)
	for i, s := range obj.Anames {

	CDGBRA	R3, F12                // b3a500c3

	CELFBR	R0, F15                // b39000f0
	CDLFBR	R1, F14                // b39100e1
	CELGBR	R2, F13                // b3a000d2
	CDLGBR	R3, F12                // b3a100c3

	CFEBRA	F15, R1                // b398501f
	CFDBRA	F14, R2                // b399502e
	CGEBRA	F13, R3                // b3a8503d
	CGDBRA	F12, R4                // b3a9504c

	AMMINDBVU	R14, (R13), R12 // acb97138

	FMADDF	F2, F14, F9, F16	// 30391108
	FMADDD	F11, F20, F23, F12	// ecd22508
	FMSUBF	F3, F11, F31, F22	// f6af5108
	FMSUBD	F13, F30, F9, F15	// 2ff96608
	FNMADDF	F27, F11, F5, F21	// b5ac9d08
	FNMADDD	F29, F14, F27, F6	// 66bbae08
	FNMSUBF	F17, F8, F12, F8	// 88a1d808
	FNMSUBD	F29, F21, F3, F17	// 71d4ee08
	FMADDF	F2, F14, F9		// 29391108
	FMADDD	F11, F20, F23		// f7d22508