HP 3000 Manuals HP 3000 Manuals
HP_DESTINATION
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HP_DESTINATION is a System-Dependent HP-UX Option.
Syntax
$HP_DESTINATION '{ARCHITECTURE PAmodel}'$
{SCHEDULER PAmodel }
Where:
ARCHITECTURE Specifies the desired destination architecture.
PAmodel Can be a model number, such as 750 or 870, or
one of the following architecture
specifications:
1.0 Generates object code suitable for all
implementations of PA-RISC 1.0 or
higher. This is the default for the
Series 800 models.
1.1 Generates object code suitable for all
implementations of PA-RISC 1.1. This is
the default for all Series 700 models.
SCHEDULER Specifies the desired instruction scheduling algorithm.
PAmodel Can be a model number, such as 750 or 870, or
one of the following architecture
specifications:
1.0 Performs generic scheduling tuned to a
model representative of PA-RISC 1.0
implementations.
1.1 Performs generic scheduling tuned to a
model representative of PA-RISC 1.1
implementations.
Default The native architecture of the machine the program is
being compiled on.
Location The beginning of the source file.
HP_DESTINATION 'ARCHITECTURE' Option
The HP_DESTINATION 'ARCHITECTURE' option specifies your intended
destination architecture so you can cross-compile a program to run on a
different PA-RISC architecture without having to purchase that machine.
Specifying a destination architecture ensures that the compiler generates
appropriate object code for that destination architecture.
The first occurrence of the HP_DESTINATION 'ARCHITECTURE' option takes
precedence over later occurrences of the same option. For more
information on HP_DESTINATION 'ARCHITECTURE', refer to the HP Pascal/iX
Programmer's Guide or the HP Pascal/HP-UX Programmer's Guide, depending
on your implementation.[REV END]
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NOTE If you specify an architecture other than the native architecture
of your machine, your compiled program may not run on your machine.
Specifically, code compiled with HP_DESTINATION 'ARCHITECTURE
PA1.1' may not run on a PA-RISC 1.0 machine.
NOTE A program containing the HP_DESTINATION 'ARCHITECTURE' compiler
option must be linked with the pc command line option +DAmodel.
This is because +DAmodel does more than specify the destination
architecture. It also specifies which math libraries the program
is to be linked with: PA-RISC 1.0 or PA-RISC 1.1. See the HP-UX
Floating Point Guide for more information about using math
libraries.
HP_DESTINATION 'SCHEDULER' Option
The HP_DESTINATION 'SCHEDULER' option specifies an instruction scheduling
algorithm that is not native to your architecture; it optimizes your
program for a PA-RISC architecture other than the one you are compiling
on.
The first occurrence of the HP_DESTINATION 'SCHEDULER' option takes
precedence over later occurrences of the same option. For more
information on HP_DESTINATION 'SCHEDULER', refer to the HP Pascal/iX
Programmer's Guide or the HP Pascal/HP-UX Programmer's Guide, depending
on your implementation.
Note that the command line option +DSmodel also specifies this option.
This option can be used with the HP_DESTINATION 'ARCHITECTURE' option.
For example, if you want your program to run on both a PA-RISC 1.0
architecture machine and a PA-RISC 1.1 architecture machine, you can use
HP_DESTINATION 'ARCHITECTURE PA1.0' to specify PA-RISC 1.0 architecture.
Because the PA-RISC 1.1 instruction set is a superset of the PA-RISC 1.0
instruction set, the code will run on both machines. If you use
HP_DESTINATION 'SCHEDULER PA1.1', your program will run on both
architectures, but will run as fast as possible on PA-RISC 1.1
architecture machines.[REV END]