19 Jan
2002
19 Jan
'02
2:54 p.m.
Johnny Billquist <bqt(a)update.uu.se> writes:
DECUS C might be a better starting point.
DECUS C is kind-of a funny case. Whereas most C compilers are
traditionally maintained and distributed as C source code, DECUS C
is distributed and maintained in PDP-11 assembly language.
For other C compilers, a significant milestone was when they were
rewritten in C and compiled themselves. DECUS C is the odd guy out because
it never tried to reach this milestone. In some sense this is a good thing,
because it lets you build it on a machine without any access to any C compiler.
Tim.
19 Jan
19 Jan
3:12 p.m.
New subject: [pups] Re: GCC
On Sat, 19 Jan 2002 SHOPPA(a)TRAILING-EDGE.COM wrote:
Johnny Billquist <bqt(a)update.uu.se> writes:
True.
DECUS C might be a better starting point.
DECUS C is kind-of a funny case. Whereas most C compilers are
traditionally maintained and distributed as C source code, DECUS C
is distributed and maintained in PDP-11 assembly language. For other C compilers, a significant milestone was
when they were
rewritten in C and compiled themselves. DECUS C is the odd guy out because
it never tried to reach this milestone. In some sense this is a good thing,
because it lets you build it on a machine without any access to any C compiler.
Which definitely is a good thing in this case. Since most systems don't
have a C compiler anyway, the first compiler have to get down there
someway, and MACRO-11 is the only language you *know* exist.
I'm soon done with a cleanup of DECUS-C by the way. I've tried to collect
all the different versions I can find, and incorporated my own fixes as
well. This version will support I/D space correctly in RSX (which no other
version except my in-house hacks have done), will have a working profiler
again, and also supports RMS and DAP. Fun fun...
I'm testing it right now, and most things looks like they are working like
a charm.
However, if someone have plenty of time, and an RSTS/E or RT-11 system
around, I'd sure appreciate some help. I've tried to keep those parts
up-to-date as well, but I cannot test, or fix broken things.
This compiler have been a mess for many years now... About time it got
some cleanup.
Oh. And I don't know if Allan Baldwin (sp?) have some extra hacks in for
his IP-stack, and I haven't even investigated.
Anyone know?
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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