Editing Turbo Assembler (section)

{{Short description|Computer assembler developed by Borland}}
{{Redirect|TASM||Tasm (disambiguation)}}

{{Infobox Software
| name                   = Turbo Assembler
| developer              = [[Borland]]
| released               = {{Start date and age|1989}}
| latest_release_version = 5.4
| latest_release_date    = 
| operating_system       = [[MS-DOS]], [[Microsoft Windows|Windows]]
| genre                  = [[Assembly language#Assembler|Assembler]]
| license                = [[Proprietary software|Proprietary]]
| website                = {{webarchive |url=https://web.archive.org/web/20101023185143/http://info.borland.com/borlandcpp/cppcomp/tasmfact.html |date=October 23, 2010 |title=Official webpage }}
}}

'''Turbo Assembler''' ('''TASM''')  is an [[assembly language#Assembler|assembler]] for software development published by [[Borland]] in 1989. It runs on and produces code for 16- or 32-bit [[x86]] [[MS-DOS]] and compatibles for [[Microsoft Windows]]. It can be used with Borland's other language products: [[Turbo Pascal]], [[Turbo Basic]], [[Turbo C]], and [[Turbo C++]]. The Turbo Assembler package is bundled with Turbo [[linker (computing)|Linker]] and is interoperable with [[Turbo Debugger]].

Borland advertised Turbo Assembler as being 2-3 times faster than its primary competitor, [[Microsoft Macro Assembler]] (MASM). TASM can assemble source in a MASM-compatible mode or an ''ideal mode'' with a few enhancements. [[Object-oriented programming]] was added in version 3. The last version of Turbo Assembler is 5.4, with files dated 1996 and patches up to 2010; it is still included with [[Embarcadero Delphi|Delphi]] and [[C++Builder]].

TASM itself is a 16-bit program. It will run on 16- and 32-bit versions of Windows, and produce code for the same versions, but it does not generate 64-bit x86 code. Turbo Assembler 5.0 (at least) also contains a 32-bit PE version of tasm called TASM32.EXE.