35 lines
557 B
ArmAsm
35 lines
557 B
ArmAsm
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#
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! $Source$
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! $State$
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! $Revision$
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#include "libsysasm.h"
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! .sys_cpyout: copy ecx bytes starting from ds:eax to the transfer
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! buffer. Return eax := offset of transfer buffer in the real mode data
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! segment. Preserve all other registers, except the flags.
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.extern .sys_cpyout
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.sys_cpyout:
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push ecx
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push edx
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push esi
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push edi
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xchg esi, eax
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movzx edi, (transfer_buffer_ptr)
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mov eax, edi
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mov es, (pmode_ds)
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mov edx, ecx
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shr ecx, 2
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rep movs
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movb cl, dl
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andb cl, 3
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rep movsb
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mov ecx, ss
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mov es, ecx
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pop edi
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pop esi
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pop edx
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pop ecx
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ret
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