On 07/01/2012 02:28, H. S. Teoh wrote:
On Sat, Jan 07, 2012 at 02:15:39AM +0000, Robert Clipsham wrote:
On 07/01/2012 00:31, H. S. Teoh wrote:
I admit I've no idea how the D compiler implements compile-time
evaluation, but is it possible for the compiler to actually emit code
for compile-time functions containing asm blocks and, say, execute it
in a sandbox, and read the values out from the machine registers? Or
does this create more problems than it solves?
Doing this would mean you can't do cross-compilation, eg using x86 to
compile for ARM. Which means you'd need to use a virtual machine for
it, which is almost certainly more effort than it's worth.
[...]
But doesn't the use of asm{} already prevent cross-compilation in the
first place? Or does the D compiler actually translate the instructions
into the target platform? In which case, doesn't it already know enough
to be able to interpret it?
I'm pretty sure I'm missing something obvious.
T
version(X86) asm
{
// X86 ASM
}
else version(ARM) asm
{
// ARM ASM
}
// etc
--
Robert
http://octarineparrot.com/
