67 lines
1010 B
Plaintext
67 lines
1010 B
Plaintext
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display_string:
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invoke GetStdHandle,[display_handle]
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mov edx,eax
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mov edi,esi
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or ecx,-1
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xor al,al
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repne scasb
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neg ecx
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sub ecx,2
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invoke WriteFile,edx,esi,ecx,bytes_count,0
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retn
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alloc:
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invoke VirtualAlloc,0,eax,MEM_COMMIT,PAGE_READWRITE
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or eax,eax
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jz allocation_error
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clc
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retn
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allocation_error:
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stc
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retn
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free:
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invoke VirtualFree,eax,0,MEM_RELEASE
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retn
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open:
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invoke CreateFile,edx,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,0,0
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cmp eax,-1
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je file_error
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mov ebx,eax
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clc
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retn
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file_error:
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stc
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retn
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create:
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invoke CreateFile,edx,GENERIC_WRITE,0,0,CREATE_ALWAYS,0,0
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cmp eax,-1
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je file_error
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mov ebx,eax
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clc
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retn
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write:
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invoke WriteFile,ebx,edx,ecx,bytes_count,0
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or eax,eax
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jz file_error
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clc
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retn
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read:
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push ecx
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invoke ReadFile,ebx,edx,ecx,bytes_count,0
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pop edx
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or eax,eax
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jz file_error
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cmp edx,[bytes_count]
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jne file_error
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clc
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retn
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close:
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invoke CloseHandle,ebx
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retn
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lseek:
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movzx eax,al
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invoke SetFilePointer,ebx,edx,0,eax
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cmp eax,-1
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je file_error
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retn
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