Interface select code 32 has a special usage and cannot be changed. It allows some system attributes associated with the computer processor to be set or read. CONTROL and STATUS are the only operations allowed on this interface. To ease porting of HP BASIC programs, CONTROL operations are supported, but are ignored except as noted. The following STATUS registers are supported in this version.
STATUS 0 - Parity Checking.
Always 1 (enabled), regardless of the presence or absence of and state of parity checking.
STATUS 1 - External Cache.
Always 0 (disabled), regardless of the presence or absence and state of an external cache.
STATUS 2 - Floating-Point Math Hardware.
Returns 1 if a math coprocessor is present or 0 if not present.
STATUS 3 - Internal (Inside the Processor) Cache.
Always 0 (disabled).
STATUS 4 - Battery-Backed-Up Clock Type.
Presently, always 1.
STATUS 5 - Reports faster timing resolution.
1 = indicates the faster timing resolution is in effect.
0 = indicates the faster timing resolution is not effect.
