Re: LDC asm for int128
On Tuesday, 10 September 2019 at 06:18:05 UTC, Newbie2019 wrote:
I want to translate this c code into d (build with ldc), so I
can use -flto and inline with other code.
uint64_t _wymum(uint64_t A, uint64_t B){
__uint128_t r = A ;
r *= B;
return (r>>64)^r;
}
Do i need ASM or is there a easy way to implement it ?
Easiest way is to use GFM's[1] 128bit integers.
[1]:http://code.dlang.org/packages/gfm
Re: LDC asm for int128
On Tuesday, 10 September 2019 at 06:18:05 UTC, Newbie2019 wrote:
I want to translate this c code into d (build with ldc), so I
can use -flto and inline with other code.
uint64_t _wymum(uint64_t A, uint64_t B){
__uint128_t r = A ;
r *= B;
return (r>>64)^r;
}
Do i need ASM or is there a easy way to implement it ?
https://forum.dlang.org/post/ighiwexofvdqbuqeq...@forum.dlang.org
LDC asm for int128
I want to translate this c code into d (build with ldc), so I can
use -flto and inline with other code.
uint64_t _wymum(uint64_t A, uint64_t B){
__uint128_t r = A ;
r *= B;
return (r>>64)^r;
}
Do i need ASM or is there a easy way to implement it ?
