29 Jul
2014
29 Jul
'14
1:47 p.m.
On Jul 29, 2014, at 2:48 PM, Ken Seefried <seefriek at gmail.com> wrote:
The MC68060 shed a number of integer mul/div, FP
transendentals, and some
variants of conditional MOVE instructions that the MC68040 implemented, as
well as some privileged mode instructions like PTEST. I'm sure there are
others I've forgotten. Motorola provided exception handling software that
would emulate (many) of the unimplemented instructions.
Perhaps my memory is faulty, but do I recall that the 68040 FPU
eschewed a lot of the transcendental functions as well due to die
space constraints?
- Dave