30 Nov
2015
30 Nov
'15
6:17 p.m.
On Mon, Nov 30, 2015 at 3:13 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 11/30/2015 02:09 PM, Mike Stein wrote:
One of the drum computers had the address of the next instruction as an
operand of the instruction; the programmer would scatter the instructions
according to the execution time of the instructions; IIRC "assembler"
referred to the process of converting the sequential source to the
scattered arrangement.
-- Charles
Nothing wrong with what you wrote that I can see;
excellent tutorial
IMO.
The issue of "floppy interleave" pretty much went away when memory got
cheap enough to buffer an entire track, provided the controller is capable
of 1:1 interleave transfers.
An A-B comparison with interleaved vs. track buffering is quite
enlightening.
I don't think that any modern hard drives use interleaved transfer, but
I'm not certain.
Interleaving core accesses goes *way* back, as does using extra-wide
multi-word-at-a-time transfers.
Did the IBM 650 interleave drum sectors?