!Number = F ;which trigger to use. Valid numbers are 0-1F

db $42
JMP Code : JMP Code : JMP Code : JMP Skip : JMP Skip : JMP Skip : JMP Skip
JMP Code : JMP Code : JMP Code

!Add #= ($!Number&$18)>>$3
!Number #= $!Number-($!Number&$18)

Code:
    LDA.b #SNES_Code
    STA $0183
    LDA.b #SNES_Code>>8
    STA $0184
    LDA.b #SNES_Code>>16
    STA $0185
    LDA #$D0
    STA $2209
.Wait
    LDA $018A
    BEQ .Wait
    STZ $018A
    BRA Skip
SNES_Code:
    LDA $7FC0FC+!Add
    AND #($01<<$!Number)^$FF
    STA $7FC0FC+!Add
Skip:
    RTL