[TUHS] Bryan Cantrill on bfs & ta

John Cowan cowan at mercury.ccil.org
Sat Oct 20 06:54:28 AEST 2012


Clem Cole scripsit:

> the 68000 and 68010 were 16 bit internals. ie a 16 bit barrel shifter
> and it took 2 ticks to perform 32 bit ops.    a natural int was indeed
> 16 bits in the base registers although they also could be used as
> 32 bit registers (2 ticks ) so some 68k compilers defined int as 16
> others as 32 (more in a minute). it technically was LP32 not ILP32

Sounds like the 8088, which used an 8-bit bus but 16-bit registers
and operations.

-- 
John Cowan <cowan at ccil.org>             http://www.ccil.org/~cowan
Sir, I quite agree with you, but what are we two against so many?
    --George Bernard Shaw,
         to a man booing at the opening of _Arms and the Man_



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