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[/] [xgate/] [trunk/] [README.txt] - Diff between revs 77 and 84

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Rev 77 Rev 84
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// SVN tag: None
// SVN tag: None
 
 
 
August 11,2010
 
RTL - No Change
 
 
 
Applications - Added the "application" directory to the "sw" directory. The
 
    first application code added is the SKIPJACK encrypt/decrypt function. This
 
    algorithm works on a 64 bit block of data and uses an 80 bit key. See the
 
    "sw/applications/skipjack/README.txt" file for more information.
 
 
 
Testbench - To aid in software development a simple debug module was added to
 
    the testbench. The debugger loads watchpoint addresses stored in RAM after
 
    the first RAM initialization. The debugger generates trigger signals that
 
    can be watched in the waveform viewer and captures a copy of the CPU
 
    registers at each trigger event. The watch point addresses are captured by
 
    the assembler and stored in RAM addresses reserved for the test bench.
 
    There are enable registers in the testbench that can enable or disable any
 
    of the eight individual watchpoints under testbench control.
 
 
 
Doc - Made corrections to some of the example code in the detailed instruction
 
    descriptions.
 
 
 
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// SVN tag: None
 
 
June 10,2010
June 10,2010
RTL - No Change
RTL - No Change
 
 
Testbench - No Change.
Testbench - No Change.
 
 
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// SVN tag: None
// SVN tag: None
 
 
Jan 11,2010
Jan 11,2010
RTL - 85% done -- Fix error in Zero Flag calculation for ADC and SBC instructions
RTL - 85% done -- Fix error in Zero Flag calculation for ADC and SBC instructions
  Fix Error in loading R2 durning cpu_state == BOOT_3.
  Fix Error in loading R2 durning cpu_state == BOOT_3.
  THere is a bug in DEBUG mode that is sensitive to number of preceding
  There is a bug in DEBUG mode that is sensitive to number of preceding
   instructions and wait states that needs to be resolved.
   instructions and wait states that needs to be resolved.
 
 
Updates to testbench --
Updates to testbench --
 
 
Updates to User Guide -- First pass with instruction set details. Needs more
Updates to User Guide -- First pass with instruction set details. Needs more

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