25 lines
561 B
ArmAsm
25 lines
561 B
ArmAsm
! htonX(), ntohX() - Host to network byte order conversion
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! Author: Kees J. Bot
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! 7 Jan 1997
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!
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! This is a little endian 8086, so we swap bytes to/from the big endian network
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! order. The normal <net/hton.h> macros are not used, they give lousy code.
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.text
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.define _htons, _ntohs
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_htons:
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_ntohs:
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mov bx, sp
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movb ah, 2(bx) ! Load bytes into ax in reverse order
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movb al, 3(bx)
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ret
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.define _htonl, _ntohl
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_htonl:
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_ntohl:
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mov bx, sp
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movb dh, 2(bx) ! Load bytes into dx:ax in reverse order
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movb dl, 3(bx)
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movb ah, 4(bx)
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movb al, 5(bx)
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ret
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