Or NILH Rx,X'00ff'
Or NILF, Rx,X'00ffffff'
For production code, I'm restricted to the opcode set required by the
oldest supported release of z/OS, and [LL|I|O|N|X]I[H|L][H|L]
instructions pass. NILF does not, but it isn't needed in this
particular case.
sas
On 8/5/2014 9:43, John Gilmore wrote:
Much sooner than I had expected, Steve Hobson and I have in fact found
something to agree about.
Hexadecimal representations can sometimes be more perspicuous than
decimal ones, and vice versa. Thus
| N Rx,X'00FFFFFF'
is certainly more perspicuous than
| N Rx,F'16777215'
albeit marginally so for the experienced.
In other cases it is not obvious to me that the choice matters much:
|&whatever seta BYTE(x'40')
and
|&whatever seta BYTE(+64)
seem to me to be interchangeable. An assembly-language programmer for
whom 4 x 16 = 64 is not immediate should find other work.
John Gilmore, Ashland, MA 01721 - USA
.
