MouseRightDeset9th:
    LDA OAM_HighTable_00.w
    EOR #$01.b
    STA OAM_HighTable_00.w
    INC OAM_Update.w
    BRA MRReturn

UpdateCursor:
    LDA mouse_sp1.w
    TAY

    LDA mouse_x1.w
    BMI MouseMinusX
    BEQ MouseY

    ; MOUSE MOVE RIGHT
    LDA OAM_LowTable_00X.w
    JMP MRS_Start

    MouseRightSpeed:
    CLC
    ADC mouse_x1.w
    MRS_Start:          ; Speed = 0/1/2 --> Move 1/3/5 Pixel
    CLC
    ADC mouse_x1.w
    DEY
    BPL MouseRightSpeed

    PHA
    PHA

    LDA OAM_HighTable_00.w
    ORA #%00000001.b
    BNE MR_No9thXBit        ; Is the 9th X-bit set?

    PLA
    CMP OAM_LowTable_00X.w  ; Store new X value if new X isn't lower than old X
    BCC MouseRightDeset9th      ; (This happens if it rounds beyound the screen)
    MRReturn:
    PLA
    STA OAM_LowTable_00X.w
    INC OAM_Update.w
    BRA MouseY


    MR_No9thXBit:           ; 9th X-bit not set
    PLA
    CMP #$F8.b
    BCS MouseRightReplace       ; Replace new X value if it's beyond the boarder
    CMP OAM_LowTable_00X.w  ; Store new X value if new X isn't lower than old X
    BCS MouseRightStore     ; (This happens if it rounds beyound the screen)

    MouseRightReplace:
    PLA
    LDA #$F8.b
    PHA

    MouseRightStore:
    PLA

    STA OAM_LowTable_00X.w
    INC OAM_Update.w
    BRA MouseY

    ; MOUSE MOVE LEFT
    MouseMinusX:
    AND #%01111111.b
    BEQ MouseY
    STA TEMP3.b
    LDA OAM_LowTable_00X.w
    JMP MLS_Start

    MouseLeftSpeed:
    SEC
    SBC TEMP3.b
    MLS_Start:          ; Speed = 0/1/2 --> Move 1/3/5 Pixel
    SEC
    SBC TEMP3.b
    DEY
    BPL MouseLeftSpeed

    ; UNTESTED
    PHA

;   CMP #$F8.b
;   BCS MouseLeftReplace        ; Replace new X value if it's beyond the boarder
    CMP OAM_LowTable_00X.w  ; Store new X value if new X isn't lower than old X
    BCS MouseLeft9th        ; (This happens if it rounds beyound the screen)
    BRA MouseLeftStore

;   MouseLeftReplace:
;   PLA
;   LDA #$00.b
;   PHA

    MouseLeft9th:
    LDA OAM_HighTable_00.w
    ORA #%00000001.b
    BEQ MouseLeftStore
    LDA OAM_HighTable_00.w
    EOR #$01.b
    STA OAM_HighTable_00.w
    INC OAM_Update.w

    MouseLeftStore:
    PLA
    ; /UNTESTED

    STA OAM_LowTable_00X.w
    INC OAM_Update.w

    ; MOUSE VERTICAL MOVE
    MouseY:
    LDA mouse_y1.w
    BEQ MouseExit
    BMI MouseMinusY

    ; MOUSE MOVE DOWN
    LDA OAM_LowTable_00Y.w
    JMP MDS_Start

    MouseDownSpeed:
    CLC
    ADC mouse_y1.w
    MDS_Start:          ; Speed = 0/1/2 --> Move 1/3/5 Pixel
    CLC
    ADC mouse_y1.w
    DEY
    BPL MouseDownSpeed
    STA OAM_LowTable_00Y.w
    INC OAM_Update.w
    RTS

    ; MOUSE MOVE UP
    MouseMinusY:
    AND #%01111111.b
    BEQ MouseExit
    STA TEMP3.b
    LDA OAM_LowTable_00Y.w
    JMP MUS_Start

    MouseUpSpeed:
    SEC
    SBC TEMP3.b
    MUS_Start:          ; Speed = 0/1/2 --> Move 1/3/5 Pixel
    SEC
    SBC TEMP3.b
    DEY
    BPL MouseUpSpeed
    STA OAM_LowTable_00Y.w
    INC OAM_Update.w

    MouseExit:
    RTS