[Issue 19276] New: Document accurately calling conventions and demo them in inline asm

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19276

          Issue ID: 19276
           Summary: Document accurately calling conventions and demo them
                    in inline asm
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dlang.org
          Assignee: nobody at puremagic.com
          Reporter: b2.temp at gmx.com

https://dlang.org/spec/abi.html or https://dlang.org/spec/iasm.html should
contain the specification for extern(C) and extern(D) register convention for 

- linux and windows, 
- x86 and x86_64
- simple types incl floats
- value types that don't fit
- array

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