Turbo Assembler

Turbo Assembler (sometimes shortened to the name of the executable, TASM) is an assembler for software development published by Borland in 1989. It runs on and produces code for 16- or 32-bit x86 MS-DOS and compatible on 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 and is interoperable with Turbo Debugger.

"TASM" redirects here. For other uses, see Tasm (disambiguation).
Turbo Assembler
Developer(s)Borland
Initial release1989 (1989)
Stable release
5.4
Operating systemMS-DOS, Windows
TypeAssembler
LicenseProprietary
WebsiteOfficial webpage at the Wayback Machine (archived October 23, 2010)

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 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.

Example

A Turbo Assembler program that prints 'Merry Christmas!':

.model small
.stack	100h
.data
msg	db "Merry Christmas!"     ,'$'
.code
main	proc
    mov ax, SEG msg
	mov	ds, ax
	mov	dx, offset msg
	mov	ah, 9
	int	21h
	mov	ax, 4c00h
	int	21h
main	endp
end	main

See also

References
    Notes
    • Swan, Tom (1989). Mastering Turbo Assembler. Carmel, Indiana: Howard W. Sams & Company, Hayden Books division of Macmillan Computer Publishing. ISBN 0-672-48435-8. 2nd Edition, 1995 ISBN 0-672-30526-7.
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