Re: Equivalent in D for .p2align 4,,15 ?

[anonymous via Digitalmars-d-learn]

On Wednesday, 29 October 2014 at 17:16:23 UTC, Etienne wrote:
I'm looking for the D inline assembler equivalent of the 
.p2align 4,,15 directive to optimize a loop.


Here's more information:
http://stackoverflow.com/questions/21546946/what-p2align-does-in-asm-code

I tried searching through a turbo assembler tutorial (because 
D's is based on it) and found nothing except a few hints here: 
http://www.csn.ul.ie/~darkstar/assembler/manual/a10.txt


There might be a way through segments, directives, but I'm not 
sure at all if D supports it.


Does anyone have any idea if/how I can align my code this way 
or if the compiler handles it?


As far as I understand, `.p2align 4,,15` aligns to a 16 byte
boundary, and the third argument could be left out, because more
than 15 bytes wouldn't ever be skipped anyway.

D inline assembler has an 'align' directive [1]. Aligning to a 16
byte boundary in D: `align 16;`.

[1] http://dlang.org/iasm.html -- align IntegerExpression, near
the top

Re: Equivalent in D for .p2align 4,,15 ?

[Etienne via Digitalmars-d-learn]

On 2014-10-29 1:44 PM, anonymous wrote:


D inline assembler has an 'align' directive [1]. Aligning to a 16
byte boundary in D: `align 16;`.

[1] http://dlang.org/iasm.html -- align IntegerExpression, near
the top


Of course, align directive works on instructions in asm. Thanks 
anonymous, that was a very simple explanation.