ShootFireball: A2 09 LDX.B #$09 ; \ Find a free fireball slot (08-09) CODE_00FEAA: BD 0B 17 LDA.W RAM_ExSpriteNum,X ; | CODE_00FEAD: F0 06 BEQ CODE_00FEB5 ; | CODE_00FEAF: CA DEX ; | CODE_00FEB0: E0 07 CPX.B #$07 ; | CODE_00FEB2: D0 F6 BNE CODE_00FEAA ; | Return00FEB4: 60 RTS ; / Return if no free slots CODE_00FEB5: A9 06 LDA.B #$06 CODE_00FEB7: 8D FC 1D STA.W $1DFC ; / Play sound effect CODE_00FEBA: A9 0A LDA.B #$0A CODE_00FEBC: 8D 9C 14 STA.W RAM_FireballImgTimer CODE_00FEBF: A9 05 LDA.B #$05 ; \ Extended sprite = Mario fireball CODE_00FEC1: 9D 0B 17 STA.W RAM_ExSpriteNum,X ; / CODE_00FEC4: A9 30 LDA.B #$30 CODE_00FEC6: 9D 3D 17 STA.W RAM_ExSprSpeedY,X CODE_00FEC9: A4 76 LDY RAM_MarioDirection CODE_00FECB: B9 94 FE LDA.W DATA_00FE94,Y CODE_00FECE: 9D 47 17 STA.W RAM_ExSprSpeedX,X CODE_00FED1: AD 7A 18 LDA.W RAM_OnYoshi CODE_00FED4: F0 09 BEQ CODE_00FEDF ADDR_00FED6: C8 INY ADDR_00FED7: C8 INY ADDR_00FED8: AD DC 18 LDA.W $18DC ADDR_00FEDB: F0 02 BEQ CODE_00FEDF ADDR_00FEDD: C8 INY ADDR_00FEDE: C8 INY CODE_00FEDF: A5 94 LDA RAM_MarioXPos CODE_00FEE1: 18 CLC CODE_00FEE2: 79 96 FE ADC.W DATA_00FE96,Y CODE_00FEE5: 9D 1F 17 STA.W RAM_ExSpriteXLo,X CODE_00FEE8: A5 95 LDA RAM_MarioXPosHi CODE_00FEEA: 79 9C FE ADC.W DATA_00FE9C,Y CODE_00FEED: 9D 33 17 STA.W RAM_ExSpriteXHi,X CODE_00FEF0: A5 96 LDA RAM_MarioYPos CODE_00FEF2: 18 CLC CODE_00FEF3: 79 A2 FE ADC.W DATA_00FEA2,Y CODE_00FEF6: 9D 15 17 STA.W RAM_ExSpriteYLo,X CODE_00FEF9: A5 97 LDA RAM_MarioYPosHi CODE_00FEFB: 69 00 ADC.B #$00 CODE_00FEFD: 9D 29 17 STA.W RAM_ExSpriteYHi,X CODE_00FF00: AD F9 13 LDA.W RAM_IsBehindScenery CODE_00FF03: 9D 79 17 STA.W $1779,X Return00FF06: 60 RTS ; Return ADDR_00FF07: C2 20 REP #$20 ; Accum (16 bit) ADDR_00FF09: AD BC 17 LDA.W $17BC ADDR_00FF0C: 29 00 FF AND.W #$FF00 ADDR_00FF0F: 10 03 BPL ADDR_00FF14 ADDR_00FF11: 09 FF 00 ORA.W #$00FF ADDR_00FF14: EB XBA ADDR_00FF15: 18 CLC ADDR_00FF16: 65 94 ADC RAM_MarioXPos ADDR_00FF18: 85 94 STA RAM_MarioXPos ADDR_00FF1A: AD BB 17 LDA.W $17BB ADDR_00FF1D: 29 00 FF AND.W #$FF00 ADDR_00FF20: 10 03 BPL ADDR_00FF25 ADDR_00FF22: 09 FF 00 ORA.W #$00FF ADDR_00FF25: EB XBA ADDR_00FF26: 49 FF FF EOR.W #$FFFF ADDR_00FF29: 1A INC A ADDR_00FF2A: 18 CLC ADDR_00FF2B: 65 96 ADC RAM_MarioYPos ADDR_00FF2D: 85 96 STA RAM_MarioYPos ADDR_00FF2F: E2 20 SEP #$20 ; Accum (8 bit) Return00FF31: 6B RTL ; Return ADDR_00FF32: BD E0 14 LDA.W RAM_SpriteXHi,X ADDR_00FF35: EB XBA ADDR_00FF36: B5 E4 LDA RAM_SpriteXLo,X ADDR_00FF38: C2 20 REP #$20 ; Accum (16 bit) ADDR_00FF3A: 38 SEC ADDR_00FF3B: E5 1A SBC RAM_ScreenBndryXLo ADDR_00FF3D: 85 00 STA $00 ADDR_00FF3F: A9 30 00 LDA.W #$0030 ADDR_00FF42: 38 SEC ADDR_00FF43: E5 00 SBC $00 ADDR_00FF45: 85 22 STA $22 ADDR_00FF47: E2 20 SEP #$20 ; Accum (8 bit) ADDR_00FF49: BD D4 14 LDA.W RAM_SpriteYHi,X ADDR_00FF4C: EB XBA ADDR_00FF4D: B5 D8 LDA RAM_SpriteYLo,X ADDR_00FF4F: C2 20 REP #$20 ; Accum (16 bit) ADDR_00FF51: 38 SEC ADDR_00FF52: E5 1C SBC RAM_ScreenBndryYLo ADDR_00FF54: 85 00 STA $00 ADDR_00FF56: A9 00 01 LDA.W #$0100 ADDR_00FF59: 38 SEC ADDR_00FF5A: E5 00 SBC $00 ADDR_00FF5C: 85 24 STA $24 ADDR_00FF5E: E2 20 SEP #$20 ; Accum (8 bit) Return00FF60: 6B RTL ; Return CODE_00FF61: BD E0 14 LDA.W RAM_SpriteXHi,X CODE_00FF64: EB XBA CODE_00FF65: B5 E4 LDA RAM_SpriteXLo,X CODE_00FF67: C2 20 REP #$20 ; Accum (16 bit) CODE_00FF69: C9 00 FF CMP.W #$FF00 CODE_00FF6C: 30 05 BMI CODE_00FF73 CODE_00FF6E: C9 00 01 CMP.W #$0100 CODE_00FF71: 30 03 BMI CODE_00FF76 CODE_00FF73: A9 00 01 LDA.W #$0100 CODE_00FF76: 85 22 STA $22 CODE_00FF78: E2 20 SEP #$20 ; Accum (8 bit) CODE_00FF7A: BD D4 14 LDA.W RAM_SpriteYHi,X CODE_00FF7D: EB XBA CODE_00FF7E: B5 D8 LDA RAM_SpriteYLo,X CODE_00FF80: C2 20 REP #$20 ; Accum (16 bit) CODE_00FF82: 85 00 STA $00 CODE_00FF84: A9 A0 00 LDA.W #$00A0 CODE_00FF87: 38 SEC CODE_00FF88: E5 00 SBC $00 CODE_00FF8A: 18 CLC CODE_00FF8B: 6D 88 18 ADC.W RAM_Layer1DispYLo CODE_00FF8E: 85 24 STA $24 CODE_00FF90: E2 20 SEP #$20 ; Accum (8 bit) Return00FF92: 6B RTL ; Return

LDX.B #$09 ; \ Find a free fireball slot (08-09) LDA.W RAM_ExSpriteNum,X ; | BEQ CODE_00FEB5 ; | DEX ; | CPX.B #$07 ; | BNE CODE_00FEAA ; | RTS ; / Return if no free slots

JMP wherever wherever: LDX.B #$09 ; \ Find a free fireball slot (08-09) LDA.W RAM_ExSpriteNum,X ; | BEQ CODE_00FEB5 ; | DEX ; | CPX.B #$07 ; | BNE CODE_00FEAA ; | ;your code to check for two more places here ;all the code for two fireballs goes here, but modified for two separate fireballs.