History
- Released
- 6 December 1991
- Code
- Ecco
- Music
- Link (Klaus Groengaard), Markus Schneider, Jason Brooke, Scortia, Stein Pedersen, Jeff (Soeren Lund), Reyn Ouwehand
- Group
- X-Factor — Denmark, founded 28 May 1989
Released on 6 December 1991, this is the fourth numbered crack intro from X-Factor, a Danish group founded on 28 May 1989 with the motto "the future of today — the legend of tomorrow." Ecco handled the code — the same coder credited on Doc Snyder's Page for X-Factor's first intro. What sets this intro apart is its extraordinary music selection — CSDb lists eight SID tunes from seven different composers, including Link, Markus Schneider, Jason Brooke, Scortia, Stein Pedersen, Jeff, and Reyn Ouwehand. This multi-tune approach created a jukebox-style intro where listeners could cycle through tracks. The HVSC preserves all eight tunes, spanning compositions like "Visage," "Lingo," "Lawn Tennis," "CoverGirl Strip Poker," "Tjong," "Intro-Sucker," "Effe Snel," and "Bass-Spass." X-Factor maintained a website at xfactor.dk and was part of the Danish scene alongside groups like Dominators and Triad.
Sources: CSDb · Doc Snyder's Page
// ============================================ // output - Disassembled Source // ============================================ // KickAssembler syntax // Generated by Restore 64 v0.2.1 alpha build 298, 2026-04-11 21:37:03 // https://restore64.dev by datucker / Rabenauge // // Load address: $0800 End: $ffff (63488 bytes) // Crunched with Exomizer v2/v3 (with relocation) — depacked by emulation // Packer entry: $0810 (via BASIC SYS 2064) // Entry point: $2800 (10240) // IRQ handler: $ea31 (irq_ea31) // IRQ handler: $2860 (irq_2860) // IRQ handler: $2891 (irq_2891) // IRQ handler: $28c0 (irq_28c0) // IRQ handler: $290a (irq_290a) // IRQ handler: $2964 (irq_2964) // // Code: 3781 bytes, Data: 59707 bytes // Labels: 444, Subroutines: 14 // // Cross-references: all OK // ============================================ // --- Region $0820-$0824 --- .pc = $0820 "sub_0820" // Referenced by: jsr from $ffed sub_0820: .byte $80,$07 // nop #$07 // ILLEGAL .byte $07,$07 // slo $07 // ILLEGAL chr_0824: // === Charset data (1 bytes, $0824-$0824) === .byte $07 // char 0 (partial) // --- Region $0f04-$0f0b --- .pc = $0f04 "sub_0f04" // Referenced by: jsr from $ffe7 sub_0f04: .byte $ff,$ff,$ff // isc $ffff,x // ILLEGAL .byte $ff,$3f,$7f // isc $7f3f,x // ILLEGAL chr_0f0a: // === Charset data (2 bytes, $0f0a-$0f0b) === .byte $ff,$7f // char 0 (partial) // --- Region $1000-$1006 --- .pc = $1000 "sub_1000" // Referenced by: jsr from $29eb sub_1000: jmp loc_1020 // Referenced by: jsr from $2954, $f7ce sub_1003: jmp loc_108d scr_1006: // === Screen RAM (1 bytes, $1006-$1006) === .encoding "screencode_mixed" .text "a" .encoding "petscii_upper" // --- Region $1020-$1251 --- .pc = $1020 "loc_1020" loc_1020: asl asl asl tay ldx #$00 loc_1026: lda $16bb,y sta $1627,x sta $162d,x lda $16bc,y sta $162a,x sta $1630,x iny iny inx cpx #$03 bne loc_1026 lda $16bb,y sta $16b6 sta $16b7 lda $1011 beq loc_1078 ldx #$02 loc_104f: lda $16bc,y sta $1633 and $1634,x sta scr_1006,x dex bpl loc_104f bit $1633 bpl loc_1078 ldx #$00 loc_1065: lda $16bd,y sta $162d,x lda $16be,y sta $1630,x iny iny inx cpx #$03 bne loc_1065 loc_1078: ldy #$00 tya loc_107b: sta $d400,y sta $1643,y iny cpy #$1b bne loc_107b lda $1009 sta $d418 rts loc_108d: lda $fb pha lda $fc pha ldx #$02 dec $16b6 bpl loc_10a0 lda $16b7 sta $16b6 loc_10a0: lda scr_1006,x bne loc_10a8 jmp loc_155a loc_10a8: lda $16b6 bne loc_10b5