DOS Protected Mode Services
http://dbpedia.org/resource/DOS_Protected_Mode_Services an entity of type: WikicatDOSFiles
DOS Protected Mode Services (abgekürzt DPMS) ist eine Gruppe von Diensten des DOS-Speichermanagers, über die geringfügig modifizierte DOS-Gerätetreiber, -TSR-Programme und -Anwendungen entweder wie gehabt im konventionellen Speicher ausgeführt werden können oder aber in den erweiterten Speicher verschoben und dort im 16-Bit- oder 32-Bit-Protected-Mode von x86-Prozessoren ausgeführt werden können. Zur Kommunikation mit der konventionellen DOS-Umgebung verbleibt ein kleiner Teil des Programmcodes im Real-Mode-Adressraum.
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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 memory and protected mode. Not being a DOS extender by itself, DPMS is a minimal set of extended DOS memory management services to allow slightly modified DOS resident system extensions (RSX) such as device drivers or TSRs (as so called DPMS clients) to relocate themselves into extended memory and run in 16-bit or 32-bit protected mode while leaving only a tiny stub in conventional memory as an interface to communicate with the conventional DOS environment. The DPMS clients do so through DPMS services provided by a previously loaded DPMS server.The necessary size of the remaining stub depends on the type of driver, but often can be reduced
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DOS Protected Mode Services
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DOS Protected Mode Services
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32990374
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April 2019
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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 memory and protected mode. Not being a DOS extender by itself, DPMS is a minimal set of extended DOS memory management services to allow slightly modified DOS resident system extensions (RSX) such as device drivers or TSRs (as so called DPMS clients) to relocate themselves into extended memory and run in 16-bit or 32-bit protected mode while leaving only a tiny stub in conventional memory as an interface to communicate with the conventional DOS environment. The DPMS clients do so through DPMS services provided by a previously loaded DPMS server.The necessary size of the remaining stub depends on the type of driver, but often can be reduced to a few hundred bytes for just the header even for complex drivers. By executing the driver in extended memory and freeing up conventional memory, DPMS not only allows very large drivers to load and take advantage of the available memory, but also to leave more memory available for normal DOS drivers to load or non-extended DOS applications to execute within the space constraints of the conventional memory area. This will also help increase the amount of free system resources under Windows. Providing unified interfaces for the software to allocate and use memory in protected mode without having to tunnel all requests through real mode DOS, DPMS at the same time can help improve system performance as well.
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DOS Protected Mode Services (abgekürzt DPMS) ist eine Gruppe von Diensten des DOS-Speichermanagers, über die geringfügig modifizierte DOS-Gerätetreiber, -TSR-Programme und -Anwendungen entweder wie gehabt im konventionellen Speicher ausgeführt werden können oder aber in den erweiterten Speicher verschoben und dort im 16-Bit- oder 32-Bit-Protected-Mode von x86-Prozessoren ausgeführt werden können. Zur Kommunikation mit der konventionellen DOS-Umgebung verbleibt ein kleiner Teil des Programmcodes im Real-Mode-Adressraum.
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39754