16 Dec
2010
16 Dec
'10
2:15 p.m.
On 16 Dec 2010 at 20:28, Tony Duell wrote:
It says :
'Note that the letter O (Oh) is written as 0 to distinguish it clearly
from the digit O (sero). We follow this convention in the description
of any statement or card that is fed to the computer'
So in that book (and presumably in other related
manuals/documentation), the letter gets the slash.
Okay, let's look at IBM publication SC20-1646-6, "A Programmer's
Introduction to IBM System/360 Assembler Language" (August 1970) on
bitsavers as:
http://bit.ly/fYgJTZ
Note that, starting on PDF page 10, and on all subsequent coding
forms, the zero is slashed, not the letter O.
Even more curious, is the reference in the title to "Assembler
Language" rather than "Assembly Language", as the purists would hav
it.
If your book is an IBM publication, it shows only that IBM was
consistent in its inconsistency.
It'd be interesting if someone could come up with a corporate
directive that specifies what the "official" convention was.
--Chuck