missing HexString documentation

[Walter Bright]

On 2/8/2018 10:49 AM, Steven Schveighoffer wrote:
> On 2/8/18 1:42 PM, Ralph Doncaster wrote:
>> On Thursday, 8 February 2018 at 18:31:06 UTC, Walter Bright wrote:
>>>     db    0ffffffdeh,0ffffffadh,0ffffffbeh,0ffffffefh    ;....
>> But it looks like they are all dchar, so 4x the space vs x"deadbeef"?

The 'db' means 'define byte'. dw for words, dd for 32 bit words.

> I was looking at that too when I was testing the differences, but actually, it's 
> the same when you use x"deadbeef".

Yes.


> I wonder if it's an issue with how obj2asm prints it out? Surely, that data 
> array must be contiguous, and they must be bytes. Otherwise the resulting code 
> would be wrong.

Yes. I just never bothered to fix it.