cba54b205b
- refactor code for transfer buffer reads/writes, real mode int 0x21 calls, and assembler segment declarations - define transfer buffer size in one place - beef up error checking for transfer buffer operations (prevent buffer overflows) - also optimize such operations to transfer dword by dword where feasible
23 lines
317 B
ArmAsm
23 lines
317 B
ArmAsm
#
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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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! Say whether a file descriptor is ready for input, i.e. reading from the
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! fd will immediately return something.
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.define __sys_isreadyr
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__sys_isreadyr:
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mov ebx, esp
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mov eax, 0x4406
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mov ebx, 4(ebx)
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int 0x21
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jnc ok
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movb al, 0
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ok:
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o16 cbw
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cwde
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ret
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