ARM first & default LDC

[Iain Buclaw]

On Wednesday, 16 December 2020 at 05:20:21 UTC, Max Haughton 
wrote:
>
> Ultimately in this discussion of arm and RISC-V making the 
> frontend asm {} blocks understand them would probably do more 
> than changing compilers. It's a relatively simple thing to have 
> but I don't think any other language can do it.

asm {} blocks are cross platform without needing special support.


uint result = void;
version (ARM)
{
     asm nothrow @nogc
     {
         "vmrs %0, FPSCR;
          and %0, %0, #0x1F;" : "=r" (result);
     }
}
else version (RISCV32)
{
     asm nothrow @nogc
     {
         "frflags %0" : "=r" (result);
     }
}
return result;