3 ms·
It was definitely among the very best, but more than 15 years ago I found an error in the E500/Book E reference manual that repeated itself for more than 200 pa
by puzzle 8y ago
It was definitely among the very best, but more than 15 years ago I found an error in the E500/Book E reference manual that repeated itself for more than 200 pages. It only was relevant to you if you cared about the actual bit encoding of SPE instructions. Plus there was a random reference to someone named Gary that, obviously, wasn't meant to be there.
Motorola's PowerPC support hotline acknowledged the problem on the same day and published a new version of the manual by the end of the week or the next one. Of course they did, because that's how great they were.
- SmellyGeekBoy 8y agoBut what became of Gary?
- puzzle 8y agoThey never acknowledged Gary, but removed him anyway. The original said "Scalar floating-point instructions operate on single 32-bit operands that reside in the lower 32-bits of the GPRs. These instructions are considered a proper subset of the SPE APU; this subset is referred to as the SPFPU now called the EFPU Gary cares only that it have embedded in it somewhere." (more recent e500 chips considered the scalar instructions to be in a separate APU)