gng --- part 1 : ED64: D6 72 LDB $72 ED66: 58 ASLB ED67: 8E ED 88 LDX #$ED88 ED6A: 30 85 LEAX B,X ED6C: DC 9C LDD $9C ED6E: 10 A3 84 CMPD ,X ED71: 23 14 BLS $ED87 part 2 : ED73: 8E 6E BB LDX #$6EBB ED76: D6 72 LDB $72 ED78: 58 ASLB ED79: EC 85 LDD B,X ED7B: DD AA STD $AA ED7D: C6 01 LDB #$01 ED7F: D7 81 STB $81 ED81: CC 0D 00 LDD #$0D00 ED84: 7E 69 09 JMP $6909 ED87: 39 RTS makaimur -------- part 1 : ECA4: D6 72 LDB $72 ECA6: 58 ASLB ECA7: 8E EC D8 LDX #$ECD8 ECAA: 30 85 LEAX B,X ECAC: DC 9C LDD $9C ECAE: 10 A3 84 CMPD ,X ECB1: 23 24 BLS $ECD7 extra code : ECB3: DC AA LDD $AA load timer ECB5: 10 83 00 0F CMPD #$000F compare timer with 15 (when "alarm" sound starts) ECB9: 22 08 BHI $ECC3 if greater, go to part 2 ECBB: BD 78 BD JSR $78BD play "blank" sound (0x3f) to stop the "alarm" sound ECBE: D6 BD LDB $BD load level sound (0x2b for level 1) ECC0: BD 77 61 JSR $7761 play this sound part 2 : ECC3: 8E 6E B7 LDX #$6EB7 ECC6: D6 72 LDB $72 ECC8: 58 ASLB ECC9: EC 85 LDD B,X ECCB: DD AA STD $AA ECCD: C6 01 LDB #$01 ECCF: D7 81 STB $81 ECD1: CC 0D 00 LDD #$0D00 ECD4: 7E 68 FD JMP $68FD