Current status:

Operating Systems:
BOS/360:   Works.

TOS/360:   Works.

DOS/360:   Works.

OS/360:    MVT can be generated. Fortran, Algol working.

TSS/370:   Works.

VM/370:    Works.

OS/VS1:    Sysgen works.

MVS:       Errors during install of SMP.

MTS D2.0&D4.0:  Works.