Git stats 16 commits. Failed to load latest commit information. View code. Download and install DosBox Open configuration file i.
INC This is base include file that has been distributed by Quarterback. Copyright ACP Releases No releases published. Packages 0 No packages published. You signed in with another tab or window. Reload to refresh your session. On Sunday September 23, nonhocapito said:. On Monday October 24, maraakate said:. Works great for getting the memory just right on older DOS games. It has a MB window. Returns true is a memory region is non-volatile memory. Returns a file descriptor backing a file-based RAM memory region, or -1 if the region is not a file-based RAM memory region.
Use with care; by the time this function returns, the returned pointer is not protected by RCU anymore. Turns dirty logging on or off for a specified client display, migration.
Only meaningful for RAM regions. This function is called when the caller wants to clear the remote dirty bitmap of a memory range within the memory region. This can be used by e. Creates a snapshot of the dirty bitmap, clears the dirty bitmap and returns the snapshot.
Snapshotting allows querying the same page multiple times, which is especially useful for display updates where the scanlines often are not page aligned. The dirty bitmap region which gets copyed into the snapshot and cleared afterwards can be larger than requested.
Should other use cases for this function emerge we might have to revisit this implementation detail. Allows a memory region to be marked as read-only turning it into a ROM. When it is in ROMD mode, the device is mapped to guest memory and satisfies read access directly.
Writes are always handled by the MemoryRegion. Enabled writes to a region to be queued for later processing. Only useful for IO regions.
Roughly similar to write-combining hardware. Multiple calls can be issued coalesced disjoint ranges. Roughly equivalent to uncacheble memory hardware. Ensure that pending coalesced MMIO request are flushed before the memory region is accessed. Note that this service has no effect on memory regions that have MMIO coalescing enabled for themselves.
For them, automatic flushing will stop once coalescing is disabled. Adds a subregion at offset. The subregion may not overlap with other subregions except for those explicitly marked as overlapping. The subregion may overlap with other subregions. Conflicts are resolved by having a higher priority hide a lower priority. Subregions without priority are taken as priority 0. Answer whether a MemoryRegion within container covers the address addr. The RamDiscardManager cannot change while a memory region is mapped.
Locates the first MemoryRegion within mr that overlaps the range given by addr and size. Returns a MemoryRegionSection that describes a contiguous overlap. Similarly, the. Conventional memory or base memory is the memory range between 0 kb and kb. Programs are loaded to this memory range. The available free memory can be lower as some drivers have to leave a part of their code in memory to handle e.
By default such drivers are placed in conventional memory. The upper memory area UMA is memory in the range between kb and 1 Mb. By default there is no RAM in this range as it is reserved for use with hardware that is able to map own memory to this range.
Additional hardware like mass storage controllers, network adapters It has to be loaded in config. If no contiguous free Upper Memory Block is available the driver will be loaded to Conventional Memory. Since UMA memory is managed in blocks the amount of free Upper Memory is usually larger than the largest contiguous free block. SYS in config. Directly after an XMS driver is loaded in config. Expanded Memory can be either memory on an memory expansion card or a part of the main memory.
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