ETHTOOL_PHYS_ID                             = 0x1c
	ETHTOOL_PHY_EDPD_DFLT_TX_MSECS              = 0xffff
	ETHTOOL_PHY_EDPD_DISABLE                    = 0x0
	ETHTOOL_PHY_EDPD_NO_TX                      = 0xfffe
	ETHTOOL_PHY_FAST_LINK_DOWN_OFF              = 0xff
	ETHTOOL_PHY_FAST_LINK_DOWN_ON               = 0x0
	ETHTOOL_PHY_GTUNABLE                        = 0x4e

		return 0, 0, fmt.Errorf("%d is not a 24 bit unsigned immediate", v)
	}
	if v > 0xfff000+0xfff<<shift {
		return 0, 0, fmt.Errorf("%d is too large for a scaled 24 bit unsigned immediate", v)
	}
	if v&((1<<shift)-1) != 0 {
		return 0, 0, fmt.Errorf("%d is not a multiple of %d", v, 1<<shift)
	}
	lo := (v >> shift) & 0xfff
	hi := v - (lo << shift)
	if hi > 0xfff000 {
		hi = 0xfff000
		lo = (v - hi) >> shift

	SYS_PTHREAD_GETSPECIFIC             = 0x1FC // 508
	SYS_PTHREAD_JOIN                    = 0x1FD // 509
	SYS_PTHREAD_KEY_CREATE              = 0x1FE // 510
	SYS_PTHREAD_MUTEXATTR_INIT          = 0x1FF // 511
	SYS_PTHREAD_MUTEXATTR_DESTROY       = 0x200 // 512
	SYS_PTHREAD_MUTEXATTR_SETKIND_NP    = 0x201 // 513
	SYS_PTHREAD_MUTEXATTR_GETKIND_NP    = 0x202 // 514
	SYS_PTHREAD_MUTEX_INIT              = 0x203 // 515

		default:
			return C_GOK
		}

		if c.instoffset == 0 {
			return C_ZCON
		}
		if c.instoffset >= 0 {
			if c.instoffset <= 0x7fff {
				return C_SCON
			}
			if c.instoffset <= 0xffff {
				return C_ANDCON
			}
			if c.instoffset&0xffff == 0 && isuint32(uint64(c.instoffset)) { /* && ((instoffset & (1<<31)) == 0) */
				return C_UCON
			}