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DOS Protected Mode Interface information


DOS Protected Mode Interface
AbbreviationDPMI
StatusPublished
Year started1989; 35 years ago (1989)
OrganizationDPMI Committee
DomainApplication programming interfaces

In computing, the DOS Protected Mode Interface (DPMI) is a specification introduced in 1989 which allows a DOS program to run in protected mode, giving access to many features of the new PC processors of the time not available in real mode. It was initially developed by Microsoft for Windows 3.0, although Microsoft later turned control of the specification over to an industry committee with open membership.[1][2] Almost all modern DOS extenders are based on DPMI and allow DOS programs to address all memory available in the PC and to run in protected mode (mostly in ring 3, least privileged).[3]

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DOS Protected Mode Interface

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computing, the DOS Protected Mode Interface (DPMI) is a specification introduced in 1989 which allows a DOS program to run in protected mode, giving access...

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DOS Protected Mode Services

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DOS Protected Mode Services (DPMS) is a set of extended DOS memory management services to allow DPMS-enabled DOS drivers to load and execute in extended...

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Virtual Control Program Interface

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Control Program Interface (VCPI) is a specification published in 1989 by Phar Lap Software that allows a DOS program to run in protected mode, granting access...

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DOS extender

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of DOS. A DOS extender is a program that "extends" DOS so that programs running in protected mode can transparently interface with the underlying DOS API...

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DOS API

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late 1980s, DOS extenders along with the DOS Protected Mode Interface (DPMI) allow the programs to run in either 16-bit or 32-bit protected mode and still...

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Virtual DOS machine

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software (DOS extenders), which has to conform to the DOS Protected Mode Interface (DPMI). When a DOS program running inside a VDM needs to access a peripheral...

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DJGPP

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utilities such as Bash, find, tar, ls, GAWK, sed, and ld to DOS Protected Mode Interface (DPMI). Supported languages include C, C++, Objective-C/C++,...

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Phar Lap Software

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12-firm committee that designed the DOS Protected Mode Interface (DPMI). VCPI and DPMI are industry standards allowing DOS extenders to co-exist with expanded...

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List of computing and IT abbreviations

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Inch DPMI—DOS Protected Mode Interface DPMS—Display Power Management Signaling DR—Disaster Recovery DRAM—Dynamic Random-Access Memory DR-DOS—Digital Research...

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DPMI

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DPMI may refer to: DOS Protected Mode Interface Cashmeran (6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone), a synthetic musk This disambiguation page...

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Extended memory

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provide expanded memory to them. The DOS Protected Mode Interface (DPMI) is Microsoft's prescribed method for a DOS program to access extended memory under...

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DOSEMU

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speed for 8086-compatible DOS operating systems and applications on x86 compatible processors, and for DOS Protected Mode Interface (DPMI) applications on...

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QEMM

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Memory Specification (XMS), Virtual Control Program Interface (VCPI) and DOS Protected Mode Interface (DPMI). Quickboot: It allows a form of warm reboot...

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DOS memory management

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(VCPI) Extended Virtual Control Program Interface (XVCPI) DOS Protected Mode Interface (DPMI) DOS Protected Mode Services (DPMS) Helix Cloaking Mueller...

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INT 13H

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interrupt call Cylinder-head-sector INT (x86 instruction) DPMI (DOS Protected Mode Interface) Ralf Brown's Interrupt List BIOS Enhanced Disk Drive Specification...

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Timeline of DOS operating systems

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Developer's Tool Employs DOS For Mainframe-Size Applications, InfoWorld, November 10, 1986 286/DOS-Extender: Build Protected Mode Apps for DOS, PC Magazine, May...

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Virtual 8086 mode

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created in real mode, but are subject to protected mode's memory paging mechanism. The virtual 8086 mode is a mode for a protected-mode task. Consequently...

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Upper memory area

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above) didn't work in Windows 95. Only the DOS Protected Mode Interface (DPMI) API for switching to protected mode was supported. Upper memory blocks can...

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VESA BIOS Extensions

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VBE provide only a real mode interface, which cannot be used without a significant performance penalty from within protected mode operating systems. Consequently...

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Thunk

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knowledge of where they are located in memory. DOS Protected Mode Interface (DPMI) DOS Protected Mode Services (DPMS) J/Direct Microsoft Layer for Unicode...

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Expanded memory

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and DOS extenders ended up being regulated by the XMS, Virtual Control Program Interface (VCPI), DOS Protected Mode Interface (DPMI) and DOS Protected Mode...

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Windows 9x

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and switch into protected mode. Once in protected mode, the virtual device drivers (VxDs) transferred all state information from MS-DOS to the 32-bit file...

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