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BBC Micro Elite

Copy protection: PROT3 (Disc version)

Name: PROT3 [View in context] Type: Subroutine Category: Copy protection Summary: Part of the CHKSM copy protection checksum calculation
.PROT3 LDA CHKSM \ Update the checksum AND CHKSM+1 ORA #&0C ASL A STA CHKSM RTS \ Return from the subroutine JMP P% \ This would hang the computer, but we never get here as \ the checksum code has been disabled