• \u2603 (8/8) Jun 13 2015 pclmulqdq is an assembly instruction on Intel CPUs that has been
• nhk8 (13/22) Jun 13 2015 waiting for its support as inline asm opcode you can still use
• Etienne Cimon (3/12) Jun 13 2015 You mean like this?
• \u2603 (1/1) Jun 14 2015 Thanks! Directly using opcodes does the trick.
• Brian Schott (1/1) Jun 14 2015 https://issues.dlang.org/show_bug.cgi?id=14697

"\u2603" <snowman nomail.com> writes:

pclmulqdq is an assembly instruction on Intel CPUs that has been
introduced together with the AES instructions. pclmulqdq provides
multiplication on binary fields and is very usefull for
implementing fast and timing attack resistant cryptographic
algorithms (e.g. GCM). The D asm supports all AES instructions
but not pclmulqdq. How can I add support for this instruction?
Could I write a patch myself? Compiler development is unknown
land to me and I'd be very glad to get some help!

"nhk8" <nhk8 sdfsdf.pl> writes:

On Saturday, 13 June 2015 at 19:48:07 UTC, \u2603 wrote:
 pclmulqdq is an assembly instruction on Intel CPUs that has been
 introduced together with the AES instructions. pclmulqdq 
 provides
 multiplication on binary fields and is very usefull for
 implementing fast and timing attack resistant cryptographic
 algorithms (e.g. GCM). The D asm supports all AES instructions
 but not pclmulqdq. How can I add support for this instruction?
 Could I write a patch myself? Compiler development is unknown
 land to me and I'd be very glad to get some help!

waiting for its support as inline asm opcode you can still use 
the instruction by writing it directly as bytecode:

---
asm{
  db 0x66;
  db 0x0f;
  db 0x3a;
  db 0x44;
}
---

expect that the regs arguments might be a somehow tricky to 
write...but still faisable.

"Etienne Cimon" <etcimon gmail.com> writes:

On Saturday, 13 June 2015 at 19:48:07 UTC, \u2603 wrote:
 pclmulqdq is an assembly instruction on Intel CPUs that has been
 introduced together with the AES instructions. pclmulqdq 
 provides
 multiplication on binary fields and is very usefull for
 implementing fast and timing attack resistant cryptographic
 algorithms (e.g. GCM). The D asm supports all AES instructions
 but not pclmulqdq. How can I add support for this instruction?
 Could I write a patch myself? Compiler development is unknown
 land to me and I'd be very glad to get some help!

You mean like this?

https://github.com/etcimon/botan/blob/master/source/botan/modes/aead/gcm.d#L437

"\u2603" <snowman nomail.org> writes:

Thanks! Directly using opcodes does the trick.

"Brian Schott" <briancschott gmail.com> writes:

https://issues.dlang.org/show_bug.cgi?id=14697