Sadly, the hardware was underpowered. The same hardware was sold for InterLisp workstations but it was so slow as to be frustrating. Like all D machines they could also boot into the Smalltalk and Cedar/Mesa environments.
A problem was that the InterLisp, Smalltalk, and Mesa development was done on the beefier Dolphin and Dorado (an ECL barn-burner) machines and as far as I can tell never tuned for the wimpy machines. I only used them when I tested some custom microcode on them; I did all my work on the faster machines too.
A problem was that the InterLisp, Smalltalk, and Mesa development was done on the beefier Dolphin and Dorado (an ECL barn-burner) machines and as far as I can tell never tuned for the wimpy machines. I only used them when I tested some custom microcode on them; I did all my work on the faster machines too.