[Issue 21182] New: asm code is missing `int ptr` and so defaults to byte op

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21182

          Issue ID: 21182
           Summary: asm code is missing `int ptr` and so defaults to byte
                    op
           Product: D
           Version: D2
          Hardware: x86
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: bugzilla at digitalmars.com

The error message:

std/internal/math/biguintx86.d(1172): Error: operand size for opcode `dec` is
ambiguous, add `ptr byte/short/int/long` prefix

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