src/hardware/snd_pc98/cbus/board118.c

#include        "compiler.h"
#include        "pccore.h"
#include        "iocore.h"
#include        "cbuscore.h"
#include        "board118.h"
#include        "cs4231io.h"
#include        "sound.h"
#include        "fmboard.h"
#include        "s98.h"


static void IOOUTCALL ymf_o188(UINT port, REG8 dat) {

        opn.addr = dat;
        opn.data = dat;
        (void)port;
}

static void IOOUTCALL ymf_o18a(UINT port, REG8 dat) {

        UINT    addr;

        opn.data = dat;
        addr = opn.addr;
        if (addr >= 0x100) {
                return;
        }
        S98_put(NORMAL2608, addr, dat);
        if (addr < 0x10) {
                if (addr != 0x0e) {
                        psggen_setreg(&psg1, addr, dat);
                }
        }
        else {
                if (addr < 0x20) {
                        rhythm_setreg(&rhythm, addr, dat);
                }
                else if (addr < 0x30) {
                        if (addr == 0x28) {
                                if ((dat & 0x0f) < 3) {
                                        opngen_keyon(dat & 0x0f, dat);
                                }
                                else if (((dat & 0x0f) != 3) &&
                                                ((dat & 0x0f) < 7)) {
                                        opngen_keyon((dat & 0x07) - 1, dat);
                                }
                        }
                        else {
                                fmtimer_setreg(addr, dat);
                        }
                }
                else if (addr < 0xc0) {
                        opngen_setreg(0, addr, dat);
                }
                opn.reg[addr] = dat;
        }
        (void)port;
}

static void IOOUTCALL ymf_o18c(UINT port, REG8 dat) {

        if (opn.extend) {
                opn.addr = dat + 0x100;
                opn.data = dat;
        }
        (void)port;
}

static void IOOUTCALL ymf_o18e(UINT port, REG8 dat) {

        UINT    addr;

        if (!opn.extend) {
                return;
        }
        opn.data = dat;
        addr = opn.addr - 0x100;
        if (addr >= 0x100) {
                return;
        }
        S98_put(EXTEND2608, addr, dat);
        opn.reg[addr + 0x100] = dat;
        if (addr >= 0x30) {
                opngen_setreg(3, addr, dat);
        }
        else {
                if (addr == 0x10) {
                        if (!(dat & 0x80)) {
                                opn.adpcmmask = ~(dat & 0x1c);
                        }
                }
        }
        (void)port;
}

static REG8 IOINPCALL ymf_i188(UINT port) {

        (void)port;
        return(fmtimer.status);
}

static REG8 IOINPCALL ymf_i18a(UINT port) {

        UINT    addr;

        addr = opn.addr;
        if (addr == 0x0e) {
                return(fmboard_getjoy(&psg1));
        }
        else if (addr < 0x10) {
                return(psggen_getreg(&psg1, addr));
        }
        else if (addr == 0xff) {
                return(1);
        }
        else {
                (void)port;
                return(opn.data);
        }
}

static REG8 IOINPCALL ymf_i18c(UINT port) {

        if (opn.extend) {
                return(fmtimer.status & 3);
        }
        (void)port;
        return(0xff);
}

static void extendchannel(REG8 enable) {

        opn.extend = enable;
        if (enable) {
                opn.channels = 6;
                opngen_setcfg(6, OPN_STEREO | 0x007);
        }
        else {
                opn.channels = 3;
                opngen_setcfg(3, OPN_MONORAL | 0x007);
                rhythm_setreg(&rhythm, 0x10, 0xff);
        }
}

static void IOOUTCALL ymf_oa460(UINT port, REG8 dat) {

        cs4231.extfunc = dat;
        extendchannel((REG8)(dat & 1));
        (void)port;
}

static REG8 IOINPCALL ymf_ia460(UINT port) {

        (void)port;
        return(0x80 | (cs4231.extfunc & 1));
}


// ----

static const IOOUT ymf_o[4] = {
                        ymf_o188,       ymf_o18a,       ymf_o18c,       ymf_o18e};

static const IOINP ymf_i[4] = {
                        ymf_i188,       ymf_i18a,       ymf_i18c,       NULL};


void board118_reset(const NP2CFG *pConfig) {

        fmtimer_reset(0xc0);
        opngen_setcfg(3, OPN_STEREO | 0x038);
        cs4231io_reset();
        soundrom_load(0xcc000, OEMTEXT("118"));
        fmboard_extreg(extendchannel);

        (void)pConfig;
}

void board118_bind(void) {

        fmboard_fmrestore(0, 0);
        fmboard_fmrestore(3, 1);
        psggen_restore(&psg1);
        fmboard_rhyrestore(&rhythm, 0);
        sound_streamregist(&opngen, (SOUNDCB)opngen_getpcm);
        sound_streamregist(&psg1, (SOUNDCB)psggen_getpcm);
        rhythm_bind(&rhythm);
        cs4231io_bind();
        cbuscore_attachsndex(0x188, ymf_o, ymf_i);
        iocore_attachout(0xa460, ymf_oa460);
        iocore_attachinp(0xa460, ymf_ia460);
}