i960 Processor Compiler User's Guide
3-8
3
ic960 and Environment Variables
Environment variables specify default directories for input files,
temporary files, libraries, the assembler, and the linker. In addition, the
I960ARCH environment variable specifies the default architecture. The
compilation system uses the following environment variables to set
defaults:
I960ARCH specifies an architecture other than the i960 KB
processor for code generation. The possible
definitions for
I960ARCH are CA, CF, HA, HD, HT,
KA, KB, RP, SA, SB, JA, JD, or JF. The A
(Architecture) option overrides the architecture
specified in
I960ARCH. In the absence of
I960ARCH and the Architecture option, the
compiler selects the i960 KB processor
architecture.
I960BASE contains the pathname of the top-level directory
containing the files and directories needed by the
compiler. This environment variable is
necessary for every phase of compilation. The
driver uses
I960BASE to find the preprocessor,
compiler, assembler, linker, and include files.
To invoke the preprocessor and compiler, the
ic960 driver looks in the
lib directory under
I960BASE.
To invoke the assembler and linker, the driver
looks in the
bin directory under the directory
specified by
I960BASE.
To find include files, the driver looks in the
include directory under the directory specified
by
I960BASE.
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