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NBA Jam Tournament Edition (SNES)/ROM map/JAM/END initials code
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This is a sub-page of NBA Jam Tournament Edition (SNES)/ROM map/JAM.
 | Note: This checks if the titlescreen code has been entered, then checks for the initials JAM or END, if correct: loads 28 or 27 (decimal) teams defeated, then sets the carry flag. |
Commented JAM/END initials input check
=============================================== check for title screen code entered, end if not =============================================== $8A/DB75 AD FF 16 LDA $16FF [$00:16FF] A:00C0 X:0000 $8A/DB78 F0 48 BEQ $48 [$DBC2] A:0001 X:0000 $8A/DB7A DA PHX A:0001 X:0000 $8A/DB7B BD 5E 15 LDA $155E,x[$00:155E] A:0001 X:0000 $8A/DB7E AA TAX A:00C0 X:0000 $8A/DB7F E2 20 SEP #$20 A:00C0 X:00C0 set 8 bit A ------------------------------------------- compare first initial to E, branch if equal ------------------------------------------- $8A/DB81 BD 00 1A LDA $1A00,x[$00:1AC0] A:00C0 X:00C0 $8A/DB84 C9 04 CMP #$04 A:0009 X:00C0 $8A/DB86 F0 16 BEQ $16 [$DB9E] A:0009 X:00C0 -------------------------- compare first initial to J -------------------------- $8A/DB88 C9 09 CMP #$09 A:0009 X:00C0 $8A/DB8A D0 36 BNE $36 [$DBC2] A:0009 X:00C0 ------------------------- compare next initial to A ------------------------- $8A/DB8C BD 01 1A LDA $1A01,x[$00:1AC1] A:0009 X:00C0 $8A/DB8F C9 00 CMP #$00 A:0000 X:00C0 $8A/DB91 D0 2F BNE $2F [$DBC2] A:0000 X:00C0 ------------------------- compare next initial to M ------------------------- $8A/DB93 BD 02 1A LDA $1A02,x[$00:1AC2] A:0000 X:00C0 $8A/DB96 C9 0C CMP #$0C A:000C X:00C0 $8A/DB98 D0 28 BNE $28 [$DBC2] A:000C X:00C0 ------------------------------------- load amount of teams defeated for JAM ------------------------------------- $8A/DB9A A9 1B LDA #$1B A:000C X:00C0 $8A/DB9C 80 10 BRA $10 [$DBAE] A:001B X:00C0 =================== first initial was E =================== ------------------------- compare next initial to N ------------------------- $8A/DB9E BD 01 1A LDA $1A01,x[$00:1AC1] A:0004 X:00C0 $8A/DBA1 C9 0D CMP #$0D A:000D X:00C0 $8A/DBA3 D0 1D BNE $1D [$DBC2] A:000D X:00C0 ------------------------- compare next initial to D ------------------------- $8A/DBA5 BD 02 1A LDA $1A02,x[$00:1AC2] A:000D X:00C0 $8A/DBA8 C9 03 CMP #$03 A:0003 X:00C0 $8A/DBAA D0 16 BNE $16 [$DBC2] A:0003 X:00C0 ------------------------------------- load amount of teams defeated for END ------------------------------------- $8A/DBAC A9 1A LDA #$1A A:0003 X:00C0 $8A/DBAE C2 20 REP #$20 A:001B X:00C0 set 16 bit A $8A/DBB0 29 1F 00 AND #$001F A:001B X:00C0 $8A/DBB3 9D 00 1C STA $1C00,x[$00:1CC0] A:001B X:00C0 $8A/DBB6 E2 20 SEP #$20 A:001B X:00C0 set 8 bit A $8A/DBB8 9D 00 1B STA $1B00,x[$00:1BC0] A:001B X:00C0 $8A/DBBB 3A DEC A A:001B X:00C0 $8A/DBBC 9D 00 1D STA $1D00,x[$00:1DC0] A:001A X:00C0 --------------------------------------------- set carry, carry means initials were entered? --------------------------------------------- $8A/DBBF 38 SEC A:001A X:00C0 $8A/DBC0 80 01 BRA $01 [$DBC3] A:001A X:00C0 -------------------------------- wrong initials/quit, clear carry -------------------------------- $8A/DBC2 18 CLC A:0000 X:00C0 $8A/DBC3 C2 20 REP #$20 A:001A X:00C0 $8A/DBC5 FA PLX A:001A X:00C0 $8A/DBC6 60 RTS A:001A X:0000