readme.ksr

spice中支持多层次元件模型仿真的可单独运行的插件源码

Building TCGMSG on the KSR1
---------------------------

To compile TCGMSG for the KSR1 just do the following:

        1) cd tcgmsg
        2) make all MACHINE=KSR

Integer Parameters to TCGMSG library routines
---------------------------------------------

The TCGMSG library routines that take integer arguments passed by
reference all expect 8 byte integers.  This means that C programs
should always pass longs and Fortran programs should always pass
INTEGER*8s.  Unpredictable behavior can result if 4 byte integers are
passed to the TCGMSG routines.  The internal type indicator MSGINT also
refers to INTEGER*8 or long data, but users should be aware that the 
external representation (i.e. XDR format) is 4 byte, thus large values
can lose precision.

Problems with Shared Memory
---------------------------

If you get an error message that looks like this:

  0: CreateSharedRegion: failed to create shared region -1 (0xffffffffffffffff).
system error message: Invalid argument

when running a TCGMSG program, this means that you could not allocate
enough shared memory for the buffer space that TCGMSG uses to pass
messages.  TCGMSG allocates the buffer space using the System V shared
memory routines.  Older versions of the KSR OS limit the amount of
shared memory that can be allocated this way to 4 Mbytes.  This limit
has been increased to 512 Mbytes in the newest version of the OS.

If you have this problem, you can still use TCGMSG.  You'll need to
change one file that controls how much buffer space is allocated by
TCGMSG and recompile the entire library.  The file that needs to be
changed is "ipcv4.0/ksr.h".  Find the #define for KSR_NUM_SLOTS.
Change the value specified from 256 to 8.  Now, recompile the library,
and your TCGMSG programs.