29 Apr
2016
29 Apr
'16
7:16 a.m.
> And you do know what Apple MacOS was originally
written in, don't you?
On Thu, 28 Apr 2016, Chris Hanson wrote:
The original Macintosh System Software was almost
entirely M68000
assembly language.
There were a couple parts of the original System Software that were
written in Pascal, but by and large the space constraints of the 64KB
ROMs and the 400KB floppy and the desire to eke every last cycle of
performance out of the 8MHz CPU led to pervasive use of assembly.
The APIs were defined in terms of both Pascal and assembly, which is
what leads people to think that it was written in Pascal.
How much was based on Lisa? What was THAT written in?