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NASM有一定兼容Borland的TASM彙編器語法的能力。如果使用了-t，會有以下影響：
- local labels1 的前綴由
.變成@@ - 在括號中支持操作數大小轉換。在TASM兼容模式下，支持在中括號內轉換操作數大小，而不是像NASM語法那樣，通過操作數地址來轉換其大小。如：
mov eax,[DWORD val]在TASM兼容模式下是合法代碼。注意：使用-t後，NASM將不再支持轉換指令地址大小的能力。 - 支持沒有前綴的預編譯指令的格式,包括：
arg，elif，else，endif，if，ifdef，ifdifi，ifndef，include，local。
現在還不知道是什麼意思。 ↩︎