DOS ain't dead

AHCICD.SYS alternatives? (Users)

posted by RayeR , CZ, 23.01.2021, 20:28

> There's no port address available in AHCI, so you can talk to the HBA in
> "DMA terms" only.

What you means by "DMA terms" only? Is there involved some programming of legacy DMA controller? This part of PC HW I don't understand much.
My bare imagine was it works similar to e.g. NVidia GPU control that I played with NVclock - you simply have a bunch of MMIO registers, some memory buffer for data, so you fill the data, write some registers in memory and last you write some control reigister that triggers whole action...

> about 125 MB/sec int 13h read speed (using a seagate HD, dated 2013).

Nice, this is pretty decent speed in DOS. My MB reach ~90MB/s on SSD in IDE mode.

---
DOS gives me freedom to unlimited HW access.

Complete thread:

• AHCICD.SYS alternatives? - Japheth, 12.01.2021, 14:57
  • AHCICD.SYS alternatives? - mceric, 12.01.2021, 17:21
    • AHCICD.SYS alternatives? - tom, 12.01.2021, 19:22
      • AHCICD.SYS alternatives? - Khusraw, 13.01.2021, 09:32
        • AHCICD.SYS alternatives? - RayeR, 13.01.2021, 13:36
        • AHCICD.SYS alternatives? - tom, 13.01.2021, 23:22
        • AHCICD.SYS alternatives? - Japheth, 15.01.2021, 08:47
    • AHCICD.SYS alternatives? - Japheth, 12.01.2021, 20:31
  • AHCICD.SYS alternatives? - RayeR, 13.01.2021, 02:45
    • AHCICD.SYS alternatives? - Japheth, 13.01.2021, 04:52
      • AHCICD.SYS alternatives? - RayeR, 13.01.2021, 05:56
        • AHCICD.SYS alternatives? - RayeR, 13.01.2021, 13:44
      • AHCICD.SYS alternatives? - rr, 13.01.2021, 11:14
        • AHCICD.SYS alternatives? - Japheth, 13.01.2021, 13:43
          • AHCICD.SYS alternatives? - Laaca, 13.01.2021, 23:16
            • AHCICD.SYS alternatives? - Japheth, 14.01.2021, 04:54
  • AHCICD.SYS alternatives? - RayeR, 14.01.2021, 01:31
    • AHCICD.SYS alternatives? - Japheth, 14.01.2021, 04:48
      • AHCICD.SYS alternatives? - RayeR, 14.01.2021, 08:12
        • AHCICD.SYS alternatives? - Japheth, 14.01.2021, 10:08
          • AHCICD.SYS alternatives? - Japheth, 14.01.2021, 13:27
            • AHCICD.SYS alternatives? - Laaca, 14.01.2021, 17:05
              • AHCICD.SYS alternatives? - Japheth, 15.01.2021, 08:39
            • AHCICD.SYS alternatives? - RayeR, 16.01.2021, 02:51
              • AHCICD.SYS alternatives? - Japheth, 16.01.2021, 06:15
                • AHCICD.SYS alternatives? - RayeR, 20.01.2021, 15:40
                  • AHCICD.SYS alternatives? - Japheth, 20.01.2021, 20:45
                    • AHCICD.SYS alternatives? - RayeR, 21.01.2021, 02:13
                      • AHCICD.SYS alternatives? - Japheth, 21.01.2021, 02:55
                        • AHCICD.SYS alternatives? - Khusraw, 22.01.2021, 21:49
                          • AHCICD.SYS alternatives? - Japheth, 23.01.2021, 08:54
                        • AHCICD.SYS alternatives? - RayeR, 23.01.2021, 20:28
                          • AHCICD.SYS alternatives? - Japheth, 23.01.2021, 22:30
      • AHCICD.SYS alternatives? - rr, 14.01.2021, 14:41
        • AHCICD.SYS alternatives? - mceric, 14.01.2021, 17:30
          • AHCICD.SYS alternatives? - rr, 14.01.2021, 18:54
            • AHCICD.SYS alternatives? - RayeR, 14.01.2021, 21:31