Invoke Game Saving Screen Event Command

Don't know how much I can help you here, but your C0 does seem to be out of date.

Code:

Invoke game loading screen
(gen. act. AB)

C0/B91B:    A902        LDA #$02        
C0/B91D:    8D0002      STA $0200
C0/B920:    20CAC6      JSR $C6CA      (jump to C3/0000->C3/001B)
C0/B923:    AFF17F30    LDA $307FF1
C0/B927:    18          CLC
C0/B928:    690D        ADC #$0D
C0/B92A:    8FF17F30    STA $307FF1
C0/B92E:    8D6D1F      STA $1F6D      (RNG index)
C0/B931:    8DA11F      STA $1FA1      (index when overworld encounter will occur)
C0/B934:    8DA21F      STA $1FA2      (index when town/dungeon encounter will occur)
C0/B937:    8DA41F      STA $1FA4      (overworld addition for encounter rate)
C0/B93A:    8DA31F      STA $1FA3      (town/dungeon addition for encounter rate)
C0/B93D:    8DA51F      STA $1FA5      (Veldt pack #, obviously $1FA1-$1FA5 will be the same at load up)
C0/B940:    AD0502      LDA $0205
C0/B943:    2980        AND #$80
C0/B945:    851A        STA $1A
C0/B947:    ADDF1E      LDA $1EDF
C0/B94A:    297F        AND #$7F
C0/B94C:    051A        ORA $1A
C0/B94E:    8DDF1E      STA $1EDF
C0/B951:    6458        STZ $58
C0/B953:    20F36C      JSR $6CF3      (calls equipment check function)
C0/B956:    208603      JSR $0386
C0/B959:    A901        LDA #$01
C0/B95B:    4C5C9B      JMP $9B5C

This is what I found in the same spot of mine. Hope it helps.