Step-by-step upgrading to YFNZ-3B (pdf)

Automatically Enabling Turbo Mode (pdf)

Programming 41CL hardware (pdf)

CLUTILS Manual (pdf, -2E version, courtesy 'Angel Martin)

CLUTILS Manual (pdf, -2F version, courtesy 'Angel Martin)

CLUTILS Manual (pdf, -2G version, courtesy 'Angel Martin)

CLUTILS Manual (pdf, -2H version, courtesy 'Angel Martin)

HHC2011: 41CL Beta Test Results (pdf)

HHC2010: Making the 41CL User-friendly (pdf)

HHC2006: Inside the Nut CPU (pdf)

HHC2005: NEWT Microprocessor and 41CL Progress Report (pdf)