|Looking for the information about U code! email@example.com (1994-11-02)|
|Re: Looking for the information about U code! firstname.lastname@example.org (1994-11-07)|
|Organization:||America Online, Inc. (1-800-827-6364)|
|Date:||Mon, 7 Nov 1994 05:21:50 GMT|
email@example.com (Guan-Joe) writes:
>>>We are looking for the data sheets or specification about U code.
Could anyone please help us to find them? or tell us where to get
If my memory were better I would be able to give you all sorts of info,
but alas my mind is leakier than a screen door in a hurricane. System/38
Pascal, which I cowrote with Dick Bains, was based on the original U code
Pascal compiler. I can't remember any references (though I know there was
a spate of articles about 5 years ago in a couple of the journals like
U code is derived from P code, but, unlike P code, is not an "assembler"
language -- it is non-symbolic in nature and is implemented as a sequence
of variant records. Like P code, it is a "stack" notation, with a simple
add being represented as LOD/LOD/ADD/STR, for example. Addresses are
given with bit offsets, adding slightly to its fairly good platform
independence but being the source of many, many bugs.
Return to the
Search the comp.compilers archives again.