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https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-09 03:41:10 +08:00
retab MIDI
This commit is contained in:
Jonathan Campbell
parent
7ffb6b1a1f
commit
b200fb49c4
@ -121,8 +121,8 @@ static void ClrQueue(void) {
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}
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static Bitu MPU401_ReadStatus(Bitu port,Bitu iolen) {
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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uint8_t ret=0x3f; /* Bits 6 and 7 clear */
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if (mpu.state.cmd_pending) ret|=0x40;
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if (!mpu.queue_used) ret|=0x80;
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@ -130,18 +130,18 @@ static Bitu MPU401_ReadStatus(Bitu port,Bitu iolen) {
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}
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static void MPU401_WriteCommand(Bitu port,Bitu val,Bitu iolen) {
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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if (mpu.mode==M_UART && val!=0xff) return;
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if (mpu.state.reset) {
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/* THIS CODE IN DISPUTE [https://github.com/joncampbell123/dosbox-x/issues/917#issuecomment-538717798] */
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if (mpu.state.cmd_pending || val!=0xff) {
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mpu.state.cmd_pending=val+1;
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return;
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}
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PIC_RemoveEvents(MPU401_ResetDone);
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mpu.state.reset=false;
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}
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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if (mpu.mode==M_UART && val!=0xff) return;
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if (mpu.state.reset) {
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/* THIS CODE IN DISPUTE [https://github.com/joncampbell123/dosbox-x/issues/917#issuecomment-538717798] */
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if (mpu.state.cmd_pending || val!=0xff) {
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mpu.state.cmd_pending=val+1;
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return;
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}
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PIC_RemoveEvents(MPU401_ResetDone);
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mpu.state.reset=false;
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}
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if (val<=0x2f) {
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switch (val&3) { /* MIDI stop, start, continue */
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case 1: {MIDI_RawOutByte(0xfc);mpu.clock.cth_savecount=mpu.clock.cth_counter;break;}
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@ -179,116 +179,118 @@ static void MPU401_WriteCommand(Bitu port,Bitu val,Bitu iolen) {
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mpu.state.wsm=false;
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mpu.state.wsd_start=true;
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}
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else
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switch (val) {
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case 0xdf: /* Send system message */
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mpu.state.wsd=false;
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mpu.state.wsm=true;
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mpu.state.wsd_start=true;
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break;
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case 0x8e: /* Conductor */
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mpu.state.cond_set=false;
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break;
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case 0x8f:
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mpu.state.cond_set=true;
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break;
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case 0x94: /* Clock to host */
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if (mpu.clock.clock_to_host && !mpu.state.playing)
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PIC_RemoveEvents(MPU401_Event);
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mpu.clock.clock_to_host=false;
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break;
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case 0x95:
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if (!mpu.clock.clock_to_host && !mpu.state.playing)
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PIC_AddEvent(MPU401_Event,MPU401_TIMECONSTANT/((mpu.clock.tempo*mpu.clock.timebase*mpu.clock.tempo_rel)/0x40));
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mpu.clock.clock_to_host=true;
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break;
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case 0xc2: /* Internal timebase */
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mpu.clock.timebase=48;
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break;
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case 0xc3:
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mpu.clock.timebase=72;
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break;
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case 0xc4:
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mpu.clock.timebase=96;
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break;
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case 0xc5:
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mpu.clock.timebase=120;
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break;
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case 0xc6:
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mpu.clock.timebase=144;
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break;
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case 0xc7:
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mpu.clock.timebase=168;
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break;
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case 0xc8:
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mpu.clock.timebase=192;
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break;
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/* Commands with data byte */
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case 0xe0: case 0xe1: case 0xe2: case 0xe4: case 0xe6:
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case 0xe7: case 0xec: case 0xed: case 0xee: case 0xef:
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mpu.state.command_byte=val;
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break;
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/* Commands 0xa# returning data */
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case 0xab: /* Request and clear recording counter */
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QueueByte(MSG_MPU_ACK);
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QueueByte(0);
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return;
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case 0xac: /* Request version */
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QueueByte(MSG_MPU_ACK);
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QueueByte(MPU401_VERSION);
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return;
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case 0xad: /* Request revision */
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QueueByte(MSG_MPU_ACK);
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QueueByte(MPU401_REVISION);
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return;
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case 0xaf: /* Request tempo */
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QueueByte(MSG_MPU_ACK);
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QueueByte(mpu.clock.tempo);
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return;
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case 0xb1: /* Reset relative tempo */
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mpu.clock.tempo_rel=0x40;
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break;
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case 0xb9: /* Clear play map */
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case 0xb8: /* Clear play counters */
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for (uint8_t i=0xb0;i<0xbf;i++) { /* All notes off */
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MIDI_RawOutByte(i);
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MIDI_RawOutByte(0x7b);
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MIDI_RawOutByte(0);
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}
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for (Bitu i=0;i<8;i++) {
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mpu.playbuf[i].counter=0;
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mpu.playbuf[i].type=T_OVERFLOW;
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}
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mpu.condbuf.counter=0;
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mpu.condbuf.type=T_OVERFLOW;
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if (!(mpu.state.conductor=mpu.state.cond_set)) mpu.state.cond_req=0;
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mpu.state.amask=mpu.state.tmask;
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mpu.state.req_mask=0;
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mpu.state.irq_pending=true;
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break;
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case 0xff: /* Reset MPU-401 */
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LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Reset %X",(int)val);
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PIC_AddEvent(MPU401_ResetDone,MPU401_RESETBUSY);
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mpu.state.reset=true;
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if (mpu.mode==M_UART) {
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else {
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switch (val) {
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case 0xdf: /* Send system message */
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mpu.state.wsd=false;
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mpu.state.wsm=true;
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mpu.state.wsd_start=true;
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break;
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case 0x8e: /* Conductor */
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mpu.state.cond_set=false;
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break;
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case 0x8f:
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mpu.state.cond_set=true;
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break;
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case 0x94: /* Clock to host */
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if (mpu.clock.clock_to_host && !mpu.state.playing)
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PIC_RemoveEvents(MPU401_Event);
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mpu.clock.clock_to_host=false;
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break;
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case 0x95:
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if (!mpu.clock.clock_to_host && !mpu.state.playing)
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PIC_AddEvent(MPU401_Event,MPU401_TIMECONSTANT/((mpu.clock.tempo*mpu.clock.timebase*mpu.clock.tempo_rel)/0x40));
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mpu.clock.clock_to_host=true;
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break;
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case 0xc2: /* Internal timebase */
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mpu.clock.timebase=48;
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break;
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case 0xc3:
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mpu.clock.timebase=72;
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break;
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case 0xc4:
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mpu.clock.timebase=96;
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break;
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case 0xc5:
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mpu.clock.timebase=120;
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break;
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case 0xc6:
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mpu.clock.timebase=144;
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break;
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case 0xc7:
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mpu.clock.timebase=168;
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break;
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case 0xc8:
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mpu.clock.timebase=192;
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break;
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/* Commands with data byte */
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case 0xe0: case 0xe1: case 0xe2: case 0xe4: case 0xe6:
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case 0xe7: case 0xec: case 0xed: case 0xee: case 0xef:
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mpu.state.command_byte=val;
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break;
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/* Commands 0xa# returning data */
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case 0xab: /* Request and clear recording counter */
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QueueByte(MSG_MPU_ACK);
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QueueByte(0);
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return;
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case 0xac: /* Request version */
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QueueByte(MSG_MPU_ACK);
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QueueByte(MPU401_VERSION);
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return;
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case 0xad: /* Request revision */
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QueueByte(MSG_MPU_ACK);
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QueueByte(MPU401_REVISION);
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return;
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case 0xaf: /* Request tempo */
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QueueByte(MSG_MPU_ACK);
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QueueByte(mpu.clock.tempo);
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return;
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case 0xb1: /* Reset relative tempo */
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mpu.clock.tempo_rel=0x40;
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break;
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case 0xb9: /* Clear play map */
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case 0xb8: /* Clear play counters */
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for (uint8_t i=0xb0;i<0xbf;i++) { /* All notes off */
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MIDI_RawOutByte(i);
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MIDI_RawOutByte(0x7b);
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MIDI_RawOutByte(0);
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}
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for (Bitu i=0;i<8;i++) {
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mpu.playbuf[i].counter=0;
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mpu.playbuf[i].type=T_OVERFLOW;
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}
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mpu.condbuf.counter=0;
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mpu.condbuf.type=T_OVERFLOW;
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if (!(mpu.state.conductor=mpu.state.cond_set)) mpu.state.cond_req=0;
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mpu.state.amask=mpu.state.tmask;
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mpu.state.req_mask=0;
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mpu.state.irq_pending=true;
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break;
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case 0xff: /* Reset MPU-401 */
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LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Reset %X",(int)val);
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PIC_AddEvent(MPU401_ResetDone,MPU401_RESETBUSY);
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mpu.state.reset=true;
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if (mpu.mode==M_UART) {
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MPU401_Reset();
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return; //do not send ack in UART mode
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}
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MPU401_Reset();
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return; //do not send ack in UART mode
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}
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MPU401_Reset();
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break;
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case 0x3f: /* UART mode */
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LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Set UART mode %X",(int)val);
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mpu.mode=M_UART;
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break;
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default:;
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//LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Unhandled command %X",val);
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break;
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case 0x3f: /* UART mode */
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LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Set UART mode %X",(int)val);
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mpu.mode=M_UART;
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break;
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default:
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//LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Unhandled command %X",val);
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break;
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}
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}
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QueueByte(MSG_MPU_ACK);
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}
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static Bitu MPU401_ReadData(Bitu port,Bitu iolen) {
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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uint8_t ret=MSG_MPU_ACK;
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if (mpu.queue_used) {
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if (mpu.queue_pos>=MPU401_QUEUE) mpu.queue_pos-=MPU401_QUEUE;
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@ -312,7 +314,7 @@ static Bitu MPU401_ReadData(Bitu port,Bitu iolen) {
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MPU401_WriteCommand(0x331,mpu.condbuf.value[0],1);
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if (mpu.state.command_byte) MPU401_WriteData(0x330,mpu.condbuf.value[1],1);
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}
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mpu.condbuf.type=T_OVERFLOW;
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mpu.condbuf.type=T_OVERFLOW;
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}
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if (ret==MSG_MPU_END || ret==MSG_MPU_CLOCK || ret==MSG_MPU_ACK) {
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mpu.state.data_onoff=-1;
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@ -322,8 +324,8 @@ static Bitu MPU401_ReadData(Bitu port,Bitu iolen) {
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}
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static void MPU401_WriteData(Bitu port,Bitu val,Bitu iolen) {
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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(void)iolen;//UNUSED
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(void)port;//UNUSED
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if (mpu.mode==M_UART) {MIDI_RawOutByte((uint8_t)val);return;}
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switch (mpu.state.command_byte) { /* 0xe# command data */
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case 0x00:
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@ -336,8 +338,8 @@ static void MPU401_WriteData(Bitu port,Bitu val,Bitu iolen) {
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return;
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case 0xe1: /* Set relative tempo */
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mpu.state.command_byte=0;
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mpu.clock.tempo_rel=(uint8_t)val;
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if (val != 0x40) LOG(LOG_MISC,LOG_ERROR)("MPU-401:Relative tempo change value 0x%x (%.3f)",(unsigned int)val,(double)val / 0x40);
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mpu.clock.tempo_rel=(uint8_t)val;
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if (val != 0x40) LOG(LOG_MISC,LOG_ERROR)("MPU-401:Relative tempo change value 0x%x (%.3f)",(unsigned int)val,(double)val / 0x40);
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return;
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case 0xe7: /* Set internal clock to host interval */
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mpu.state.command_byte=0;
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@ -373,24 +375,24 @@ static void MPU401_WriteData(Bitu port,Bitu val,Bitu iolen) {
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if (mpu.state.wsd_start) {
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mpu.state.wsd_start=0;
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cnt=0;
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switch (val&0xf0) {
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case 0xc0:case 0xd0:
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mpu.playbuf[mpu.state.channel].value[0]=(uint8_t)val;
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length=2;
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break;
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case 0x80:case 0x90:case 0xa0:case 0xb0:case 0xe0:
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mpu.playbuf[mpu.state.channel].value[0]=(uint8_t)val;
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length=3;
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break;
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case 0xf0:
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LOG(LOG_MISC,LOG_ERROR)("MPU-401:Illegal WSD byte");
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mpu.state.wsd=0;
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mpu.state.channel=mpu.state.old_chan;
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return;
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default: /* MIDI with running status */
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cnt++;
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MIDI_RawOutByte(mpu.playbuf[mpu.state.channel].value[0]);
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}
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switch (val&0xf0) {
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case 0xc0:case 0xd0:
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mpu.playbuf[mpu.state.channel].value[0]=(uint8_t)val;
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length=2;
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break;
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case 0x80:case 0x90:case 0xa0:case 0xb0:case 0xe0:
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mpu.playbuf[mpu.state.channel].value[0]=(uint8_t)val;
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length=3;
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break;
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case 0xf0:
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LOG(LOG_MISC,LOG_ERROR)("MPU-401:Illegal WSD byte");
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mpu.state.wsd=0;
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mpu.state.channel=mpu.state.old_chan;
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return;
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default: /* MIDI with running status */
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cnt++;
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MIDI_RawOutByte(mpu.playbuf[mpu.state.channel].value[0]);
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}
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}
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if (cnt<length) {MIDI_RawOutByte((uint8_t)val);cnt++;}
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if (cnt==length) {
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