Alsys Ada

Description

A 16 bit Ada compiler targeting DOS and OS/2 1.x and later ported to 32 bit OS/2 2.x and higher and 32 bit extended DOS using VCPI, because the VCPI version had been validated the company was unwilling to bear the cost of validating a DPMI version and thus the 32 bit code output by the DOS compiler will not work in OS/2 or Windows.

Versions

• Accounts differ on what was the last OS/2 version, a large number of version 5.5 are out there branded Alsys, but some claim that a bug fixed version 5.6 existed as well that was branded Thomson.

Publications

• Product reviews: Alsys OS/2 Ada compiler version 4.2 - From the Journal of Pascal, Ada & Modula-2 - March/April 1989 pages 62 to 66.