The S3 86C805 was an update to the 86C801 processor allowing for 32bit data to pass through the VL-Bus to the 486 32bit architecture.
S3-805/801 Drivers for DOS Programs
File: S3-805V.VLB.zip
401caf7b6ff2f4cbdb53eb73e9f9ce7e07d3f1dc45e2ccba4c8ff9f7d77a1239
S3-805 16-bit Beta drivers
File: p86c805-os2.zip
10f083a266733fe92cbb25eb20a21373d3c12c674144c9fbbf5a0157e07d1405