5 Dec
2014
5 Dec
'14
6:43 a.m.
On Thu, Dec 04, 2014 at 10:22:18PM -0500, Toby Thain wrote:
While the main focus is x86 and ARM, it does indeed scale down to 8 and 16 bit
CPUs. There is a port to Z80, for example. 6502 doesn't count as "sane
enough" (the ISA doesn't lend itself well to local variables on the stack) but
there are even people having a crack at that.
The real gotcha is that writing a backend involves a rather steep learning
curve. I've done the research required to create a m68k backend -- I want to
generate Amiga binaries using the native calling conventions -- and it's still
rather intimidating.
There are small versions of Java intended for tiny CPUs. No interesting Java
program would run on a PDP-11, but that's not really why one would do this :)
On 04/12/14 7:06 PM, Peter Corlett wrote:
[...]
The PDP-11 ISA
is sane enough that one could create a LLVM backend and
cross-compile to it using any of the LLVM-supported languages. It'd be
quite
Does LLVM actually scale down that far in practice? I know, from having
done
most of a PDP-11 back-end, that *lcc*, "a retargetable C compiler,"
doesn't,
really, without modification. Bonus points
for running Java on it :)
That isn't possible, the machine is far too small.
Heck, this thread began
with grave doubts that it can even run TeX.