I was wondering if anyone has ever been able to build and use BSD 1 on Research Unix v7 (pdp-11)?
I've installed the Keith Bostic tape, and I've been fighting the floating point and some other weird stuff....
but I'm lost on the install guide, as it mentions for floating point...
Floating Point
UNIX only supports (and really expects to have) the
FP11-B/C floating point unit. For machines without this
hardware, there is a user subroutine available that will
catch illegal instruction traps and interpret floating point
operations. (See fptrap(3).) To install this subroutine in
the library, change to /usr/src/libfpsim and execute the
shell files
compall
mklib
The system as delivered does not have this code included in
any command, although the operating system adapts automati-
cally to the presence or absence of the FP11.
Next, a floating-point version of the C compiler in
/usr/src/cmd/c should be compiled using the commands:
cd /usr/src/cmd/c
make fc1
mv fc1 /lib/fc1
This allows programs with floating point constants to be
compiled. To compile floating point programs use the `-f'
flag to cc(1). This flag ensures that the floating point
interpreter is loaded with the program and that the floating
point version of `cc' is used.
The library doesn't actually build a libfpsim.a but rather it hooks into libc? And the fc1 command won't build as there is no libfpsim....
Any hint would be appreciated.