26 Nov
2017
26 Nov
'17
3:55 a.m.
On CDC machines, the return jump (RJ) instruction generally used to call subroutines
deposited a jump instruction (EQ B0,B0,caller+1) in the called routine and jumped to the
word after it. Clearly, languages like Pascal didn’t use that.
I seem to recall that the CDC SORT routine built and executed sort computations in memory,
a la bitblt, which came a few years later. Of course, CDC had no concept of I and D space.
We aren’t talkin’ Burroughs here….
ches