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Network I/O Error Codes
187Bug returns an error code if an attempted network operation is
unsuccessful.
Multiprocessor Support
The MVME187 dual-port RAM feature makes the shared RAM
available to remote processors as well as to the local processor. This
can be done by either of the following two methods:
Either method can be enabled/disabled by the ENV command as
its Remote Start Switch Method (refer to Appendix A).
Multiprocessor Control Register (MPCR) Method
A remote processor can initiate program execution in the local
MVME187 dual-port RAM by issuing a remote GO command
using the Multiprocessor Control Register (MPCR).
The MPCR, located at shared RAM location of $3000 offset from the
base address the debugger loads it at, contains one of two words
used to control communication between processors. The MPCR
contents are organized as follows:
Base Address + $3000
The Multiprocessor Control Register (MPCR) Method
The Global Control and Status Register (GCSR) Method
*
Multiprocessor Support
N/A N/A N/A (MPCR)
4
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