nsd_main_se

Function Reference: nsd_main_se()

Define

    void    __fastcall__    nsd_main_se(void );

---

Inputs

No inputs

---

Outputs

No outputs

---

Contents

This is main routine of sound driver for SE.
This function will play the SE.

---

Notes

• User application can call this function nsd_main_se() as the alternative function of nsd_main().
• If the se data is in another bank outside real memory area, User MUST allocate the se data to the real memory area with the bank change before call this function.
• By using this nsd_main_se() and nsd_main_bgm() functions, you can place BGM and SE data in different banks.

        .import         _nsd_main_se
        .import         _nsd_main_bgm
.segment        "CODE"
NMI_Start:
        pha
        txa
        pha
        tya
        pha

        ; PPU Control code.
        ; 
        ; to do SHOULD write to VRAM during the vertical blanking period.
        ;       Usually, in first phase of NMI, screen controling are done.

        ; Bank change for SE. (Allocate the SE data to the real memory area.)
        lda     #SE_bank
        jsr     _bank_change            ;   bank_change(SE_bank);

        ; Play BGM & SE.
        jsr     _nsd_main_se            ;   nsd_main_se();

        ; Bank change for BGM. (Allocate the BGM data to the real memory area.)
        lda     #BGM_bank
        jsr     _bank_change            ;   bank_change(BGM_bank);

        ; Play BGM. 
        jsr     _nsd_main_bgm           ;   nsd_main_bgm();

        ; Restore the bank number.
        lda     #prog_bank
        jsr     _bank_change            ;   bank_change(prog_bank);

        pla
        tay
        pla
        tax
        pla
        rti