Asm-declaration – Embed assembly language code within a C++ program (2017)

In a string literal?!?! We did better almost 40 years ago..., this is assembly in turbo pascal:<p><pre><code> procedure init; assembler; asm mov ax,13h int 10h end; </code></pre> You can even have only the asm block in a regular pascal function and make use of regular arguments in the asm block.

Lots of languages have inline assembly. Pascal does:<p>- Free Pascal: <a href="https:&#x2F;&#x2F;www.freepascal.org&#x2F;docs-html&#x2F;prog&#x2F;progch3.html#progse9.html" rel="nofollow">https:&#x2F;&#x2F;www.freepascal.org&#x2F;docs-html&#x2F;prog&#x2F;progch3.html#progs...</a><p>- Delphi: <a href="http:&#x2F;&#x2F;docwiki.embarcadero.com&#x2F;RADStudio&#x2F;Rio&#x2F;en&#x2F;Inline_Assembly_Code_Index" rel="nofollow">http:&#x2F;&#x2F;docwiki.embarcadero.com&#x2F;RADStudio&#x2F;Rio&#x2F;en&#x2F;Inline_Assem...</a><p>You can even do assembly in batch files via Debug if you really want to:<p><a href="https:&#x2F;&#x2F;thestarman.pcministry.com&#x2F;asm&#x2F;debug&#x2F;debug2.htm" rel="nofollow">https:&#x2F;&#x2F;thestarman.pcministry.com&#x2F;asm&#x2F;debug&#x2F;debug2.htm</a><p><a href="https:&#x2F;&#x2F;www.robvanderwoude.com&#x2F;debug.php" rel="nofollow">https:&#x2F;&#x2F;www.robvanderwoude.com&#x2F;debug.php</a>

Odd bit of news reporting on something that was part of a standard published in 1997. What&#x27;s next, breaking news on a standard 7-bit code used by Americans for information interchange?

I don&#x27;t see anything on that page referencing C++20. Am I missing something?<p>On a related note, I always find the official docs for GCC inline assembly are insufficient for figuring out what I am trying to do. I nearly always have to resort to dumb trial and error. I was just recently planning to write some docs of my own on the subject. Not tutorial docs, but reference docs.

Years ago, I started work on a library that does this in Java: <a href="https:&#x2F;&#x2F;github.com&#x2F;dvx&#x2F;jssembly" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dvx&#x2F;jssembly</a><p>The syntax looks like this:<p><pre><code> jsm.define(&quot;test&quot;, new Block(x64) {{ __asm( &quot;nop&quot;, &#x2F;&#x2F; no-op &quot;ret&quot; &#x2F;&#x2F; return ); }}).invoke();</code></pre>

Tangentially related but in gcc and clang you can jump to or call machine language embedded within string literals.<p><a href="https:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;48593734&#x2F;calling-goto-on-a-wide-char-string-in-c-gcc&#x2F;49063073#49063073" rel="nofollow">https:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;48593734&#x2F;calling-goto-on...</a><p><a href="https:&#x2F;&#x2F;codegolf.stackexchange.com&#x2F;questions&#x2F;2203&#x2F;tips-for-golfing-in-c&#x2F;104999#104999" rel="nofollow">https:&#x2F;&#x2F;codegolf.stackexchange.com&#x2F;questions&#x2F;2203&#x2F;tips-for-g...</a><p>This is <i>not</i> recommended for anything in production but is an amusing parlor trick.<p>Edit: Recent toolchains may require the -zexecstack flag to avoid a segfault.

Old, well-known feature of one of the most popular languages. I must be missing something, because I have no idea how this became a hacker &quot;news&quot; :)

The real question remains unanswered: why is this on the front page?

Maybe what&#x27;s new here is the suggestion of using a raw string literal for the assembly source? That does look neat (if minor).

I was a Forth dev a long time ago (on a planet far away...). Switching to &amp; from assembly seemed as natural as breathing. Oh for the days of 16bit cores and minuscule register banks.

did this in college over 10 years ago..