Summary

AIX 1.3 PTF0024 update adds support for Adaptec SCSI adapter on the ISA bus, but doesn't work with emulated Adaptec AHA-154xC SCSI adapters in 86Box. This PR fixes ADAP signature and status flag reporting on Adaptec AHA-154xC adapters based on findings by rakslice and is verified with AIX 1.3 PTF0024 update installation.

Checklist

• Closes IBM AIX #4938
• I have tested my changes locally and validated that the functionality works as intended
• I have discussed this with core contributors already
• This pull request requires changes to the ROM set
  • I have opened a roms pull request - https://github.com/86Box/roms/pull/changeme/
• This pull request requires changes to the asset set
  • I have opened an assets pull request - https://github.com/86Box/assets/pull/changeme/

References

Findings of AHA-154xC with AIX 1.3 PTF0024 by rakslice: #4938 (comment)