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89 lines
3.4 KiB
89 lines
3.4 KiB
20 years ago
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#ifndef _LINUX_BYTEORDER_PDP_ENDIAN_H
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#define _LINUX_BYTEORDER_PDP_ENDIAN_H
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/*
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* Could have been named NUXI-endian, but we use the same name as in glibc.
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* hopefully only the PDP and its evolutions (old VAXen in compatibility mode)
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* should ever use this braindead byteorder.
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* This file *should* work, but has not been tested.
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*
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* little-endian is 1234; big-endian is 4321; nuxi/pdp-endian is 3412
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*
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* I thought vaxen were NUXI-endian, but was told they were correct-endian
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* (little-endian), though indeed there existed NUXI-endian machines
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* (DEC PDP-11 and old VAXen in compatibility mode).
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* This makes this file a bit useless, but as a proof-of-concept.
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*
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* But what does a __u64 look like: is it 34127856 or 78563412 ???
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* I don't dare imagine! Hence, no 64-bit byteorder support yet.
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* Hopefully, there 64-bit pdp-endian support shouldn't ever be required.
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*
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*/
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#ifndef __PDP_ENDIAN
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#define __PDP_ENDIAN 3412
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#endif
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#ifndef __PDP_ENDIAN_BITFIELD
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#define __PDP_ENDIAN_BITFIELD
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#endif
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#include <linux/byteorder/swab.h>
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#include <linux/byteorder/swabb.h>
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#define __constant_htonl(x) ___constant_swahb32((x))
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#define __constant_ntohl(x) ___constant_swahb32((x))
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#define __constant_htons(x) ___constant_swab16((x))
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#define __constant_ntohs(x) ___constant_swab16((x))
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#define __constant_cpu_to_le64(x) I DON'T KNOW
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#define __constant_le64_to_cpu(x) I DON'T KNOW
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#define __constant_cpu_to_le32(x) ___constant_swahw32((x))
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#define __constant_le32_to_cpu(x) ___constant_swahw32((x))
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#define __constant_cpu_to_le16(x) ((__u16)(x)
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#define __constant_le16_to_cpu(x) ((__u16)(x)
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#define __constant_cpu_to_be64(x) I DON'T KNOW
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#define __constant_be64_to_cpu(x) I DON'T KNOW
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#define __constant_cpu_to_be32(x) ___constant_swahb32((x))
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#define __constant_be32_to_cpu(x) ___constant_swahb32((x))
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#define __constant_cpu_to_be16(x) ___constant_swab16((x))
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#define __constant_be16_to_cpu(x) ___constant_swab16((x))
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#define __cpu_to_le64(x) I DON'T KNOW
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#define __le64_to_cpu(x) I DON'T KNOW
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#define __cpu_to_le32(x) ___swahw32((x))
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#define __le32_to_cpu(x) ___swahw32((x))
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#define __cpu_to_le16(x) ((__u16)(x)
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#define __le16_to_cpu(x) ((__u16)(x)
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#define __cpu_to_be64(x) I DON'T KNOW
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#define __be64_to_cpu(x) I DON'T KNOW
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#define __cpu_to_be32(x) __swahb32((x))
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#define __be32_to_cpu(x) __swahb32((x))
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#define __cpu_to_be16(x) __swab16((x))
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#define __be16_to_cpu(x) __swab16((x))
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#define __cpu_to_le64p(x) I DON'T KNOW
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#define __le64_to_cpup(x) I DON'T KNOW
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#define __cpu_to_le32p(x) ___swahw32p((x))
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#define __le32_to_cpup(x) ___swahw32p((x))
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#define __cpu_to_le16p(x) (*(__u16*)(x))
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#define __le16_to_cpup(x) (*(__u16*)(x))
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#define __cpu_to_be64p(x) I DON'T KNOW
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#define __be64_to_cpup(x) I DON'T KNOW
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#define __cpu_to_be32p(x) __swahb32p((x))
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#define __be32_to_cpup(x) __swahb32p((x))
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#define __cpu_to_be16p(x) __swab16p((x))
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#define __be16_to_cpup(x) __swab16p((x))
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#define __cpu_to_le64s(x) I DON'T KNOW
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#define __le64_to_cpus(x) I DON'T KNOW
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#define __cpu_to_le32s(x) ___swahw32s((x))
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#define __le32_to_cpus(x) ___swahw32s((x))
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#define __cpu_to_le16s(x) do {} while (0)
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#define __le16_to_cpus(x) do {} while (0)
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#define __cpu_to_be64s(x) I DON'T KNOW
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#define __be64_to_cpus(x) I DON'T KNOW
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#define __cpu_to_be32s(x) __swahb32s((x))
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#define __be32_to_cpus(x) __swahb32s((x))
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#define __cpu_to_be16s(x) __swab16s((x))
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#define __be16_to_cpus(x) __swab16s((x))
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#include <linux/byteorder/generic.h>
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#endif /* _LINUX_BYTEORDER_PDP_ENDIAN_H */
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