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Motorola DSP56000 Family Optimizing C Compiler User’s Manual
For More Information On This Product,
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Motorola
Installation On An MS-DOS Machine (80386 or 80486)
h. DSPLOC need only be set if the default output drive or the default location is
not chosen. If DSPLOC is set, it must be set to the location of the dsp directory
tree. For example, if the user installed the compiler’s directory tree DSP in the
directory D:\usr\mydir, then DSPLOC would need to be set as D:\usr\mydir:
SET DSPLOC=<compiler’s dsp directory tree>
if the directory <compiler’s dsp directory tree> is d:\usr\mydir, then
SET DSPLOC=D:\USR\MYDIR
5. Make sure that <compiler’s dsp directory tree>\dsp\bin is included in the path
instruction. This is needed by
command.com
if it is to find G56k. If the default
drive and path were chosen, then the path C:\dsp\bin would need to be added as
follows:
PATH ...;C:\DSP\BIN;...
If, for example the compiler’s dsp directory tree was installed in C:\usr\mydir, then
C:\usr\mydir\dsp\bin would need to be added as follows:
PATH ...;C:\USR\MYDIR\DSP\BIN;...
6. Make sure that other DOS memory managers do not interfere with the DOS
extended memory manager for G56k. The compiler uses its own DOS extended
memory manager called
dos4gw.exe
, and this memory manager may not work if
a different memory manager is already installed. Although this DOS extender is
DPMI 0.9 compliant, It is recommended that initially all other DOS extended
memory managers be removed, in order to test the installation. The DOS extended
memory manager dos4gw.exe is called during the compiler’s execution, and
requires at least 2M bytes of RAM. This memory manager uses hard drives for the
swap space for the memory management. By default, the swap space location is the
C drive and the size of the swap space is 16 Mbytes.
7. The DOS environment DOS4GVM controls the configuration of the DOS extended
memory management, and the environment DOS4GVM has the following format.
[option[#value]] [option[#value]]
The possible parameters for the option are:
MINMEM
The minimum amount of RAM
managed by the memory manager.
Default value is 512KB.
MAXMEM
The maximum amount of RAM
managed by the memory manager.
Default value is 4MB.
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