MFD_HUGE_16MB                               = 0x60000000
	MFD_HUGE_1GB                                = 0x78000000
	MFD_HUGE_1MB                                = 0x50000000
	MFD_HUGE_256MB                              = 0x70000000
	MFD_HUGE_2GB                                = 0x7c000000
	MFD_HUGE_2MB                                = 0x54000000
	MFD_HUGE_32MB                               = 0x64000000

	{0xffe00c00, 0x78800c00, LDRSH, instArgs{arg_Xt, arg_Xns_mem_wb_imm9_1_signed}, nil},
	// LDRSH <Wt>, [<Xn|SP>{, #<pimm>}]
	{0xffc00000, 0x79c00000, LDRSH, instArgs{arg_Wt, arg_Xns_mem_optional_imm12_2_unsigned}, nil},
	// LDRSH <Xt>, [<Xn|SP>{, #<pimm>}]
	{0xffc00000, 0x79800000, LDRSH, instArgs{arg_Xt, arg_Xns_mem_optional_imm12_2_unsigned}, nil},
	// LDRSH <Wt>, [<Xn|SP>, (<Wm>|<Xm>) {, <extend> {<amount>}}]

	PT_HIOS ProgType = 0x6fffffff /* Last OS-specific. */

	PT_LOPROC ProgType = 0x70000000 /* First processor-specific type. */

	PT_ARM_ARCHEXT ProgType = 0x70000000 /* Architecture compatibility */
	PT_ARM_EXIDX   ProgType = 0x70000001 /* Exception unwind tables */

	PT_AARCH64_ARCHEXT ProgType = 0x70000000 /* Architecture compatibility */
	PT_AARCH64_UNWIND  ProgType = 0x70000001 /* Exception unwind tables */

func (c *ctxt7) chipfloat7(e float64) int {
	ei := math.Float64bits(e)
	l := uint32(int32(ei))
	h := uint32(int32(ei >> 32))

	if l != 0 || h&0xffff != 0 {
		return -1
	}
	h1 := h & 0x7fc00000
	if h1 != 0x40000000 && h1 != 0x3fc00000 {
		return -1
	}
	n := 0

	// sign bit (a)
	if h&0x80000000 != 0 {
		n |= 1 << 7
	}

	// exp sign bit (b)
	if h1 == 0x3fc00000 {