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shop maybe fix

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This commit is contained in:
Kat
2020-07-09 02:04:00 -04:00
parent 7955a37cd9
commit af7cce9ae5
2 changed files with 43 additions and 42 deletions
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48
framehook.asm
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@@ -53,28 +53,28 @@ NMIHookAction:
JML.l NMIHookReturn
;--------------------------------------------------------------------------------
;!NMI_AUX = "$7F5044"
;PostNMIHookAction:
; LDA !NMI_AUX+2 : BEQ +
; LDA $00 : PHA ; preserve DP ram
; LDA $01 : PHA
; LDA $02 : PHA
;
; LDA !NMI_AUX+2 : STA $02 ; set up jump pointer
; LDA !NMI_AUX+1 : STA $01
; LDA !NMI_AUX+0 : STA $00
;
; PHK : PER .return-1 ; push stack for RTL return
; JMP [$0000]
;
; .return
; LDA.b #$00 : STA !NMI_AUX+2 ; zero bank byte of NMI hook pointer
;
; PLA : STA $02
; PLA : STA $01
; PLA : STA $00
; +
;
; LDA $13 : STA $2100 ; thing we wrote over, turn screen back on
;JML.l PostNMIHookReturn
!NMI_AUX = "$7F5044"
PostNMIHookAction:
LDA !NMI_AUX : BEQ +
LDA $00 : PHA ; preserve DP ram
LDA $01 : PHA
LDA $02 : PHA
LDA !NMI_AUX+2 : STA $02 ; set up jump pointer
LDA !NMI_AUX+1 : STA $01
LDA !NMI_AUX+0 : STA $00
PHK : PER .return-1 ; push stack for RTL return
JMP [$0000]
.return
LDA.b #$00 : STA !NMI_AUX ; zero bank byte of NMI hook pointer
PLA : STA $02
PLA : STA $01
PLA : STA $00
+
LDA $13 : STA $2100 ; thing we wrote over, turn screen back on
JML.l PostNMIHookReturn
;--------------------------------------------------------------------------------