Changes between Version 91 and Version 92 of Developer/OpenProjects


Ignore:
Timestamp:
Jan 23, 2009, 10:08:24 PM (11 years ago)
Author:
JoelSherrill
Comment:

/* SPARC V8 Bit Scan Instruction */ Delete. Instruction only on SPARClite. Investigation showed no better way to scan

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  • Developer/OpenProjects

    v91 v92  
    230230
    231231This project is very likely beyond the scope of a [wiki:GSoC  Google Summer of Code] project unless the student is familiar with the FreeBSD code base.
    232 = SPARC V8 Bit Scan Instruction =
    233 
    234 
    235 RTEMS currently does not take advantage of the SPARC V8 bit scan instruction.  The LEON CPUs should have these instructions and will benefit from them being supported by score/cpu/sparc.  It appears that using the generic bitfield code does not impact performance as much as it does memory usage since the generic code includes a 256-byte array.
     232
     233
    236234= Page based memory management system =
    237235