DOS ain't dead

lDebug release 9 - Heatshrink compressed drives? (Announce)

posted by mceric, Germany, 21.12.2024, 22:55

> SHSUCDHD is a program that "Simulates a CD-ROM using an image file", right?
> Any particular reason you want it to support compression?

Yes. Because the image is read-only, it will be easier to support compressed static images of a CD (with a nice sector size of 2kb, too) than it will be to implement compressed writeable drives.

For ISO images, one could for example have a simple table of offsets where each compressed sector starts, as a header for the compressed image. With an algorithm like Heatshrink which uses very little RAM to decompress, the whole driver could have a very small RAM footprint

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FreeDOS / DOSEMU2 / ...

Complete thread:

• lDebug release 9 - ecm, 21.12.2024, 13:49 (Announce)
  • lDebug release 9 - Heatshrink compressed drives? - mceric, 21.12.2024, 16:00
    • lDebug release 9 - Heatshrink compressed drives? - ecm, 21.12.2024, 18:41
      • lDebug release 9 - Heatshrink compressed drives? - mceric, 21.12.2024, 22:55
    • lDebug release 9 - Heatshrink compressed drives? - DosWorld, 02.01.2025, 18:24