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The DEC Alpha machines can use addresses up to 64 bits long, but where
FORTRAN INTEGERs are used to hold an address, only 32 bits
can be held. However, the linker has flags -T and -D which can be
used to ensure that allocated memory addresses will fit into 32
bits. The user generally does not have to worry about these, as they
are inserted automatically if the relevant Starlink library link
script (e.g. hds_link) is used.
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CNF and F77 Mixed Language Programming -- FORTRAN and C
Starlink User Note 209
P.M. Allan
A.J. Chipperfield
R.F. Warren-Smith
19 January 2000
E-mail:ussc@star.rl.ac.uk