HP SunSoft Pascal 4.0 Manuale Utente Scaricare il pdf (Pagina 78)

54 Pascal 4.0 User’s Guide

Example: -xcache=16/32/4:1024/32/1 speciﬁes the following:

-xchip=c

(Solaris 2.x only) The -xchip=c option speciﬁes the target processor for use by

the optimizer.

c must be one of: generic, old, super, super2, micro, micro2, hyper,

hyper2, powerup, ultra

Although this option can be used alone, it is part of the expansion of the -

target option; its primary use is to provide a value supplied by the -target

option.

This option speciﬁes timing properties by specifying the target processor.

Some effects are:

• The ordering of instructions, that is, scheduling

• The way the compiler uses branches

• The instructions to use in cases where semantically equivalent

alternatives are available

Level 1 cache has:

16K bytes

32 bytes line size

4-way associativity

Level 2 cache has:

1024K bytes

32 bytes line size

Direct mapping associativity

Table 3-5 The -xchip Values

Value Meaning

generic Use timing properties for good performance on most SPARCs.

This is the default value that directs the compiler to use the best timing

properties for good performance on most SPARC processors, without

major performance degradation on any of them.

old Use timing properties of pre-SuperSPARC™ processors.

super Use timing properties of the SuperSPARC chip.

super2 Use timing properties of the SuperSPARC II chip.

micro Use timing properties of the MicroSPARC™ chip.

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 332 333

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HP SunSoft Pascal 4.0 Manuale Utente Pagina 78