ack/plat/msdos386/libsys/unlink.s
tkchia cba54b205b plat/msdos386: refactor, firm up, and optimize
- 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
2022-08-26 17:31:28 +00:00

24 lines
267 B
ArmAsm

#
! $Source$
! $State$
! $Revision$
#include "libsysasm.h"
! Remove a file.
.define _unlink
_unlink:
! Copy filename to transfer buffer.
mov eax, 4(esp)
call .sys_scpyout
! Make the DOS call.
xchg edx, eax
movb ah, 0x41
call .sys_dpmidos
jmp .sys_zret