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framehook.asm
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;================================================================================
; Frame Hook
;--------------------------------------------------------------------------------
; $7EF42Ew[2] - loop frame counter (low)
!LOOP_FRAMES_LOW = "$7EF42E"
;--------------------------------------------------------------------------------
; $7EF430w[2] - loop frame counter (high)
!LOOP_FRAMES_HIGH = "$7EF430"
;--------------------------------------------------------------------------------
; $7EF43Ew[2] - nmi frame counter (low)
!NMI_FRAMES_LOW = "$7EF43E"
;--------------------------------------------------------------------------------
; $7EF440w[2] - nmi frame counter (high)
!NMI_FRAMES_HIGH = "$7EF440"
;--------------------------------------------------------------------------------
; $7EF444w[2] - item menu frame counter (low)
!ITEM_FRAMES_LOW = "$7EF444"
;--------------------------------------------------------------------------------
; $7EF446w[2] - item menu frame counter (high)
!ITEM_FRAMES_HIGH = "$7EF446"
;--------------------------------------------------------------------------------
!LOCK_STATS = "$7EF443"
FrameHookAction:
JSL $0080B5 ; Module_MainRouting
PHA : PHP
;LDA EnableSRAMTrace : AND.l TournamentSeedInverse : BEQ +
; LDA $1A : BNE ++ : JSL.l WriteStatusPreview : ++ ; write every 256 frames
;+
LDA !LOCK_STATS : BNE ++
REP #$20 ; set 16-bit accumulator
LDA !LOOP_FRAMES_LOW : INC : STA !LOOP_FRAMES_LOW : BNE +
LDA !LOOP_FRAMES_HIGH : INC : STA !LOOP_FRAMES_HIGH
+
LDA $10 : CMP.w #$010E : BNE + ; move this to nmi hook?
LDA !ITEM_FRAMES_LOW : INC : STA !ITEM_FRAMES_LOW : BNE +
LDA !ITEM_FRAMES_HIGH : INC : STA !ITEM_FRAMES_HIGH
+
SEP #$20 ; set 8-bit accumulator ?? check this
++
PLP : PLA
RTL
;--------------------------------------------------------------------------------
NMIHookAction:
PHA : PHX : PHY : PHD ; thing we wrote over, push stuff
LDA !LOCK_STATS : AND.w #$00FF : BNE ++
LDA !NMI_FRAMES_LOW : INC : STA !NMI_FRAMES_LOW : BNE +
LDA !NMI_FRAMES_HIGH : INC : STA !NMI_FRAMES_HIGH
+
++
JML.l NMIHookReturn
;--------------------------------------------------------------------------------