Binary Design tape ------------------ Info by Luigi DI Fraia The elder (original) loader should be called "Hi-Tec tape" used in some Hi-Tec releases (eg. "Chevy Chase", "Top Cat starring in Beverly Hills"), but also in "Turbo the Tortoise" and "Crystal Kingdom Dizzy". Threshold value is $017E (Tap value: $2F) CBM filelame ALWAYS contains a "Turn to BLUE" ($1F) char followed by some ASM data (6C,FD,00,etc.). Nothing seems to appear at the FOUND message on a C64 screen if background color is BLUE. Border flash is performed with: INC $D020/DEC $D020. CBM Header CRC32 is ALWAYS: $858D1EB4. CBM Data ($02A7-$0303) CRC32 is ALWAYS: $FADDF41C The clone could be called back "Virgin tape" (Double Dragon 2, E-Swat, Line of Fire). Threshold value is $015E (Tap value: $2B) CBM filelame is not used for ASM data. Border flash is performed with: LDA $D020/EOR #$05/STA $D020 (as Cyberload). CBM Data (same range: $02A7-$0303) CRC32 is ALWAYS: $895DCF44 Endianess : MSbF Pilot : $AA (*256) Sync : $A0 1 byte : Block Number (they start at 0) 1 byte : VIC screen hide/show, value is $00 or $10, ($10 = show) 2 bytes : Load Address (low,high) 2 bytes : End Address (low,high). 2 bytes : Execution Address (if $0000 then no action taken) n bytes : Data. 1 byte : Checksum (0 xor all n data bytes)