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DOSBox is a free and open-source emulator which runs software for MS-DOS compatible disk operating systems—primarily video games. [5] It was first released in 2002, when DOS technology was becoming obsolete. Its adoption for running DOS games is widespread, with it being used in commercial re-releases of those games as well.
IBM computers had BASIC 1.1 in ROM, and IBM's versions of BASIC used code in this ROM-BASIC, which allowed for extra memory in the code area. BASICA last appeared in IBM PC DOS 5.02, and in OS/2 (2.0 and later), the version had ROM-BASIC moved into the program code. Microsoft released GW-BASIC for machines with no ROM-BASIC. Some OEM releases ...
The first DPMI specification drafts were published in 1989 by Microsoft's Ralph Lipe. [4] [1] While based on a prototypical version of DPMI for Windows 3.0 in 386 enhanced mode, several features of this implementation were removed from the official specification, including a feature named MS-DOS Extensions [5] or DOS API translation that had been proposed by Ralph Lipe in the original drafts. [6]
It was released as an extension to LibreOffice before code was merged into LibreOffice 4.2.3.3 main code in 2014. [ 3 ] The lightweight implementation (1,400 lines in Python-PyUNO) uses the embedded Python to give a simplified programming interface to the vector graphics of LibreOffice for graphic design and education (including teaching of ...
The game makes use of the Super FX powered GSU-2 chip (often referred to as the Super FX 2 chip), and was one of the few SNES games to feature a colored cartridge; the game was a red cartridge in the United States. The game was released as a standard gray cartridge in Europe, Australia, and Japan.
The cross-platform game releases of the popular Humble Indie Bundles for Linux, Mac and Android are often SDL-based. SDL is also often used for later ports on new platforms with legacy code. For instance, the PC game Homeworld was ported to the Pandora handheld [68] and Jagged Alliance 2 for Android [69] via SDL.
It uses a combination of hardware-assisted virtualization features and high-level emulation.It can thus achieve nearly native speed for 8086-compatible DOS operating systems and applications on x86 compatible processors, and for DOS Protected Mode Interface (DPMI) applications on x86 compatible processors as well as on x86-64 processors.
The original DOS API in 86-DOS and MS-DOS 1.0 was designed to be functionally compatible with CP/M.Files were accessed using file control blocks (FCBs). The DOS API was greatly extended in MS-DOS 2.0 with several Unix concepts, including file access using file handles, hierarchical directories and device I/O control. [1]