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| version 1.3, 2003/11/08 21:43:01 | version 1.14, 2004/06/22 04:33:49 |
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| Line 1 | Line 1 |
| #include "compiler.h" | #include "compiler.h" |
| #include <math.h> | |
| #include "pccore.h" | #include "pccore.h" |
| #include "iocore.h" | #include "iocore.h" |
| #include "cbuscore.h" | #include "cbuscore.h" |
| Line 7 | Line 8 |
| #include "fmboard.h" | #include "fmboard.h" |
| static void setamd98event(BOOL absolute) { | // ないよりあったほーが良い程度のリズム… |
| static struct { | |
| PMIXHDR hdr; | |
| PMIXTRK trk[4]; | |
| UINT rate; | |
| UINT enable; | |
| } amd98r; | |
| static void pcmmake1(PMIXDAT *dat, UINT rate, | |
| int vol, double hz, double env) { | |
| UINT i; | |
| double x; | |
| double y; | |
| double slast; | |
| double s; | |
| double v; | |
| UINT size; | |
| SINT16 *ptr; | |
| x = 44100.0 * 2.0 * PI / ((double)rate * hz); | |
| y = 44100.0 / 256.0 / (double)rate; | |
| slast = 0.0; | |
| for (i=0; i<rate; i++) { | |
| s = sin(x * (double)i); | |
| v = pow(env, (double)i * y) * (double)vol; | |
| if ((v < 128.0) && (slast < 0.0) && (s >= 0.0)) { | |
| break; | |
| } | |
| slast = s; | |
| } | |
| size = i; | |
| if (!size) { | |
| return; | |
| } | |
| ptr = (SINT16 *)_MALLOC(size * sizeof(SINT16), "AMD98"); | |
| if (ptr == NULL) { | |
| return; | |
| } | |
| for (i=0; i<size; i++) { | |
| s = sin(x * (double)i); | |
| v = pow(env, (double)i * y) * (double)vol; | |
| ptr[i] = (SINT16)(s * v); | |
| } | |
| dat->sample = ptr; | |
| dat->samples = size; | |
| } | |
| static void pcmmake2(PMIXDAT *dat, UINT rate, | |
| int vol, double hz, double env, double k) { | |
| UINT i; | |
| double x; | |
| double y; | |
| double p; | |
| double s; | |
| double slast; | |
| double v; | |
| UINT size; | |
| SINT16 *ptr; | |
| x = 2.0 * PI * hz / (double)rate; | |
| y = 44100.0 / 256.0 / (double)rate; | |
| p = 0.0; | |
| slast = 0.0; | |
| for (i=0; i<rate; i++) { | |
| p += x * pow(k, (double)i * y); | |
| s = sin(p); | |
| v = pow(env, (double)i * y) * (double)vol; | |
| if ((v < 128.0) && (slast < 0.0) && (s >= 0.0)) { | |
| break; | |
| } | |
| slast = s; | |
| } | |
| size = i; | |
| if (!size) { | |
| return; | |
| } | |
| ptr = (SINT16 *)_MALLOC(size * sizeof(SINT16), "AMD98"); | |
| if (ptr == NULL) { | |
| return; | |
| } | |
| p = 0.0; | |
| for (i=0; i<size; i++) { | |
| p += x * pow(k, (double)i * y); | |
| s = sin(p); | |
| v = pow(env, (double)i * y) * (double)vol; | |
| ptr[i] = (SINT16)(s * v); | |
| } | |
| dat->sample = ptr; | |
| dat->samples = size; | |
| } | |
| void amd98_initialize(UINT rate) { | |
| ZeroMemory(&amd98r, sizeof(amd98r)); | |
| amd98r.rate = rate; | |
| } | |
| void amd98_deinitialize(void) { | |
| int i; | |
| void *ptr; | |
| amd98r.hdr.enable = 0; | |
| for (i=0; i<4; i++) { | |
| ptr = amd98r.trk[i].data.sample; | |
| amd98r.trk[i].data.sample = NULL; | |
| if (ptr) { | |
| _MFREE(ptr); | |
| } | |
| } | |
| } | |
| static void amd98_rhythmload(void) { | |
| UINT i; | |
| if (!amd98r.hdr.enable) { | |
| TRACEOUT(("AMD98 Rhythm load")); | |
| amd98r.hdr.enable = 0x0f; | |
| // bd | |
| pcmmake1(&amd98r.trk[0].data, amd98r.rate, | |
| 24000, 889.0476190476, 0.9446717478); | |
| // lt | |
| pcmmake2(&amd98r.trk[1].data, amd98r.rate, | |
| 6400, 172.9411764706, 0.8665145391, 0.9960000000); | |
| // ht | |
| pcmmake2(&amd98r.trk[2].data, amd98r.rate, | |
| 9600, 213.0000000000, 0.8665145391, 0.9960000000); | |
| // sd | |
| pcmmake1(&amd98r.trk[3].data, amd98r.rate, | |
| 12000, 255.4400000000, 0.8538230481); | |
| for (i=0; i<4; i++) { | |
| amd98r.trk[i].flag = PMIXFLAG_L | PMIXFLAG_R; | |
| amd98r.trk[i].volume = 1 << 12; | |
| } | |
| } | |
| } | |
| // ---- | |
| static void amd98_rhythm(UINT map) { | |
| SINT32 cnt; | PMIXTRK *trk; |
| UINT bit; | |
| if (pit.value[3].w > 8) { // 根拠なし | map &= 0x0f; |
| cnt = pc.multiple * pit.value[3].w; | if (map == 0) { |
| return; | |
| } | |
| sound_sync(); | |
| trk = amd98r.trk; | |
| bit = 0x01; | |
| do { | |
| if ((map & bit) && (trk->data.sample)) { | |
| trk->pcm = trk->data.sample; | |
| trk->remain = trk->data.samples; | |
| amd98r.hdr.playing |= bit; | |
| } | |
| trk++; | |
| bit <<= 1; | |
| } while (bit < 0x10); | |
| } | |
| // ---- | |
| static void setamd98event(UINT32 cnt, BOOL absolute) { | |
| if (cnt > 8) { // 根拠なし | |
| cnt *= pccore.multiple; | |
| } | } |
| else { | else { |
| cnt = pc.multiple << 16; | cnt = pccore.multiple << 16; |
| } | } |
| if (pc.baseclock == PCBASECLOCK25) { | if (!(pccore.cpumode & CPUMODE_8MHZ)) { |
| cnt = cnt * 16 / 13; // cnt * 2457600 / 1996800 | cnt = cnt * 16 / 13; // cnt * 2457600 / 1996800 |
| } | } |
| nevent_set(NEVENT_MUSICGEN, cnt, amd98int, absolute); | nevent_set(NEVENT_MUSICGEN, cnt, amd98int, absolute); |
| Line 25 static void setamd98event(BOOL absolute) | Line 195 static void setamd98event(BOOL absolute) |
| void amd98int(NEVENTITEM item) { | void amd98int(NEVENTITEM item) { |
| PITCH pitch; | |
| if (item->flag & NEVENT_SETEVENT) { | if (item->flag & NEVENT_SETEVENT) { |
| if ((pit.mode[3] & 0x0c) == 0x04) { | pitch = pit.ch + 4; |
| if ((pitch->ctrl & 0x0c) == 0x04) { | |
| // レートジェネレータ | // レートジェネレータ |
| setamd98event(NEVENT_RELATIVE); | setamd98event(pitch->value, NEVENT_RELATIVE); |
| } | } |
| } | } |
| pic_setirq(0x0d); | pic_setirq(0x0d); |
| Line 38 void amd98int(NEVENTITEM item) { | Line 211 void amd98int(NEVENTITEM item) { |
| // ---- | // ---- |
| static void IOOUTCALL amd_od8(UINT port, BYTE dat) { | static void IOOUTCALL amd_od8(UINT port, REG8 dat) { |
| opn.opnreg = dat; | opn.opnreg = dat; |
| (void)port; | (void)port; |
| } | } |
| static void IOOUTCALL amd_od9(UINT port, BYTE dat) { | static void IOOUTCALL amd_od9(UINT port, REG8 dat) { |
| opn.extreg = dat; | opn.extreg = dat; |
| (void)port; | (void)port; |
| } | } |
| static void IOOUTCALL amd_oda(UINT port, BYTE dat) { | static void IOOUTCALL amd_oda(UINT port, REG8 dat) { |
| if (opn.opnreg < 0x0e) { | if (opn.opnreg < 0x0e) { |
| psggen_setreg(&psg1, opn.opnreg, dat); | psggen_setreg(&psg1, opn.opnreg, dat); |
| Line 61 static void IOOUTCALL amd_oda(UINT port, | Line 234 static void IOOUTCALL amd_oda(UINT port, |
| (void)port; | (void)port; |
| } | } |
| static void IOOUTCALL amd_odb(UINT port, BYTE dat) { | static void IOOUTCALL amd_odb(UINT port, REG8 dat) { |
| if (opn.extreg < 0x0e) { | if (opn.extreg < 0x0e) { |
| psggen_setreg(&psg2, opn.extreg, dat); | psggen_setreg(&psg2, opn.extreg, dat); |
| } | } |
| else if (opn.extreg == 0x0f) { | else if (opn.extreg == 0x0f) { |
| BYTE b; | REG8 b; |
| b = psg2.reg.io2; | b = psg2.reg.io2; |
| if ((b & 1) > (dat & 1)) { | if ((b & 1) > (dat & 1)) { |
| b &= 0xc2; | b &= 0xc2; |
| if (b == 0x42) { | if (b == 0x42) { |
| // TRACEOUT(0xfff0, psg_1.reg.io2); | |
| amd98.psg3reg = psg1.reg.io2; | amd98.psg3reg = psg1.reg.io2; |
| } | } |
| else if (b == 0x40) { | else if (b == 0x40) { |
| // TRACEOUT(0xfff1, psg_1.reg.io2); | |
| if (amd98.psg3reg < 0x0e) { | if (amd98.psg3reg < 0x0e) { |
| psggen_setreg(&psg3, amd98.psg3reg, | psggen_setreg(&psg3, amd98.psg3reg, psg1.reg.io2); |
| psg1.reg.io2); | |
| } | } |
| else if (amd98.psg3reg == 0x0f) { | else if (amd98.psg3reg == 0x0f) { |
| int r; | amd98_rhythm(psg1.reg.io2); |
| static const BYTE amdr[] = {0x01, 0x08, 0x10, 0x20, 0x06, 0x40}; | |
| sound_sync(); | |
| for (r=0; r<6; r++) { | |
| if (psg1.reg.io2 & amdr[r]) { | |
| // rhythm_play(&rhythm, r, 0); | |
| } | |
| } | |
| } | } |
| } | } |
| } | } |
| Line 98 static const BYTE amdr[] = {0x01, 0x08, | Line 261 static const BYTE amdr[] = {0x01, 0x08, |
| (void)port; | (void)port; |
| } | } |
| static void IOOUTCALL amd_odc(UINT port, BYTE dat) { | static void IOOUTCALL amd_odc(UINT port, REG8 dat) { |
| PITCH pitch; | |
| pitch = pit.ch + 4; | |
| if (pit_setcount(pitch, dat)) { | |
| return; | |
| } | |
| setamd98event(pitch->value, NEVENT_ABSOLUTE); | |
| (void)port; | |
| } | |
| static void IOOUTCALL amd_ode(UINT port, REG8 dat) { | |
| pit_setflag(pit.ch + 4, dat); | |
| (void)port; | |
| } | |
| static REG8 IOINPCALL amd_ida(UINT port) { | |
| itimer_setcount(3, dat); | if (opn.opnreg < 0x0e) { |
| setamd98event(NEVENT_ABSOLUTE); | return(psggen_getreg(&psg1, opn.opnreg)); |
| } | |
| else if (opn.opnreg == 0x0f) { | |
| return(psg1.reg.io2); | |
| } | |
| (void)port; | (void)port; |
| return(0xff); | |
| } | } |
| static void IOOUTCALL amd_ode(UINT port, BYTE dat) { | static REG8 IOINPCALL amd_idb(UINT port) { |
| itimer_setflag(3, dat); | if (opn.extreg < 0x0e) { |
| return(psggen_getreg(&psg2, opn.extreg)); | |
| } | |
| else if (opn.extreg == 0x0f) { | |
| return(psg2.reg.io2); | |
| } | |
| (void)port; | (void)port; |
| return(0xff); | |
| } | } |
| static REG8 IOINPCALL amd_inp(UINT port) { | |
| TRACEOUT(("amd inp - %.4x", port)); | |
| return(0xff); | |
| } | |
| // ---- | // ---- |
| static void psgpanset(PSGGEN psg) { | |
| psggen_setpan(psg, 0, 1); | |
| psggen_setpan(psg, 1, 0); | |
| psggen_setpan(psg, 2, 2); | |
| } | |
| void amd98_bind(void) { | void amd98_bind(void) { |
| amd98_rhythmload(); | |
| psgpanset(&psg1); | |
| psgpanset(&psg2); | |
| psgpanset(&psg3); | |
| psggen_restore(&psg1); | |
| psggen_restore(&psg2); | |
| psggen_restore(&psg3); | |
| sound_streamregist(&psg1, (SOUNDCB)psggen_getpcm); | sound_streamregist(&psg1, (SOUNDCB)psggen_getpcm); |
| sound_streamregist(&psg2, (SOUNDCB)psggen_getpcm); | sound_streamregist(&psg2, (SOUNDCB)psggen_getpcm); |
| sound_streamregist(&psg3, (SOUNDCB)psggen_getpcm); | sound_streamregist(&psg3, (SOUNDCB)psggen_getpcm); |
| // sound_streamregist(&rhythm, (SOUNDCB)rhythm_getpcm); | sound_streamregist(&amd98r, (SOUNDCB)pcmmix_getpcm); |
| iocore_attachout(0xd8, amd_od8); | iocore_attachout(0xd8, amd_od8); |
| iocore_attachout(0xd9, amd_od9); | iocore_attachout(0xd9, amd_od9); |
| iocore_attachout(0xda, amd_oda); | iocore_attachout(0xda, amd_oda); |
| iocore_attachout(0xdb, amd_odb); | iocore_attachout(0xdb, amd_odb); |
| iocore_attachout(0xdc, amd_odc); | iocore_attachout(0xdc, amd_odc); |
| iocore_attachout(0xde, amd_ode); | iocore_attachout(0xde, amd_ode); |
| iocore_attachinp(0xda, amd_ida); | |
| iocore_attachinp(0xdb, amd_idb); | |
| #if defined(TRACE) | |
| iocore_attachinp(0xd8, amd_inp); | |
| iocore_attachinp(0xd9, amd_inp); | |
| iocore_attachinp(0xdc, amd_inp); | |
| iocore_attachinp(0xde, amd_inp); | |
| #endif | |
| } | } |