Bug: File access broken on Cray VSMP/UNICOS 10

[johnsonjh]

Need to figure out what's wrong here, and, hopefully, a fix will increase compatibility generally.

• Cray (VSMP)
  • UNICOS (SV1) 10.0.1.2, Cray Standard C Version 6.6.0.3
  • UNICOS (J98) 10.0.0.2, Cray Standard C Version 6.4.0.0

Good news, all the 8080 and CP/M functionality otherwise checks out.

(A fix is likely trivial once I decide to figure out TotalView.)

[johnsonjh]

As it seems there is at least one more remaining SV1, this issue may soon be revisited!