Table 3-3 The -Xarch Values - Sun Microsystems SunSoft Pascal 4.0 User Manual

v7, v8, and v8a are all binary compatible. v8plus and v8plusa are binary
compatible with each other and forward, but not backward. For any particular
choice, the generated executable can run much more slowly on earlier
architectures (to the left in the above list).
Table 3-3 The -xarch Values
Value Meaning
Get good performance on most SPARCs, and major degradation on none.
generic
This is the default. This option uses the best instruction set for good
performance on most SPARC processors without major performance
degradation on any of them. With each new release, this best instruction
set will be adjusted, if appropriate.
Limit the instruction set to V7 architecture.
v7
This option uses the best instruction set for good performance on the V7
architecture, but without the quad-precision floating-point instructions.
This is equivalent to using the best instruction set for good performance
on the V8 architecture, but without the following instructions:
The quad-precision floating-point instructions
The integer mul and div instructions
The fsmuld instruction
Examples: SPARCstation 1, SPARCstation 2
Limit the instruction set to the V8a version of the V8 architecture.
v8a
This option uses the best instruction set for good performance on the V8
architecture, but without:
The quad-precision floating-point instructions
The fsmuld instruction
Example: Any machine based on MicroSPARC I chip architecture
The Pascal Compiler
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