User guide

~PPENDIX A. List of Common CP/M Extensions ............ 45
~PPENDIX B. Corvus Disk Error Codes .................... 47
~PPENDIX C. Description of CDIAGNOS Program .......... 49
~PPENDI~ D. Description of Corvus Utilities Programs ...... 53
~PPENDIX E. Supplemental VCR Information ............... 57
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