Feature request: enumeratedValueDataType pattern should allow binary literals

[eperie]

A lot of ARM silicon vendors datasheets do contain enumerated values for register fields specified in binary. Forcing users of CMSIS-SVD to convert such binary literals prior to fill enumerated values in a .svd files is going against the very purpose of schemes such as CMSID-SVD or IP-XACT I guess:

<xs:simpleType name="enumeratedValueDataType"> <xs:restriction base="xs:string"> <xs:pattern value="[+]?(0x|0X|#)?[0-9a-fxA-FX]+"\> </xs:restriction> </xs:simpleType\>

Suggestions:

• augmenting/modifying xs:pattern used for enumeratedValueDataType element to allow binary literals such as accepted in C++ standard or GCC/LLVM C extensions.
• enumerated values would then be rendered by SVDConv in hexadecimal with a comment containing their original binary values in order to enforce traceability and maintain compatibility with target C compilers that do not support the use of binary literals in C.

This could likely be achieved at a very low cost in a very near future, and would be extremely useful.

[jkrech]

Are you aware that binary notation is already possible, however it uses a leading # instead of 0b?

[eperie]

I was obviously not, thank you. Did I miss something in CMSIS-SVD.xsd, or in the .svd examples, or in some other documentation ?

[jkrech]

http://arm-software.github.io/CMSIS_5/SVD/html/svd_xml_conventions_gr.html

Constants

Number constants shall be entered in hexadecimal, decimal, or binary format.

The Hexadecimal format is indicated by a leading 0x.
The Binary format is indicated by a leading #.
All other formats are interpreted as decimal numbers.
The element <enumeratedValue>.<value> can be used to define constants.

[eperie]

I see, my mistake then - I was expecting to see such an information in the schema file and did not look for it in the HTML documentation. Thank you.