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PCECD: returns READSUBQ data and status at the end of the frame. end.

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This commit is contained in:
Sergiy Dvodnenko
2025-04-18 15:48:21 +03:00
parent e8b11f49b9
commit 8b5187ef2c
2 changed files with 54 additions and 30 deletions
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3
support/pcecd/pcecd.h
View File

@@ -98,7 +98,8 @@ private:
int CDDAStart;
int CDDAEnd;
int CDDAFirst;
int int_pend;
bool subq_pend;
bool int_pend;
uint8_t CDDAMode;
sense_t sense;
uint8_t region;

81
support/pcecd/pcecdd.cpp
View File

@@ -11,6 +11,7 @@
#include "pcecd.h"
#define PCECD_DATA_IO_INDEX 2
#define PCECD_CDDA_IO_INDEX 3
float get_cd_seek_ms(int start_sector, int target_sector);
@@ -331,12 +332,34 @@ void pcecdd_t::Reset() {
CDDAEnd = 0;
CDDAMode = PCECD_CDDAMODE_SILENT;
int_pend = false;
subq_pend = false;
stat = 0x0000;
}
void pcecdd_t::Update() {
msf_t msf;
uint8_t buf[12];
buf[0] = 0x0A;
buf[1] = 0 | 0x80;
buf[2] = this->state == PCECD_STATE_PAUSE ? 2 : (this->state == PCECD_STATE_PLAY ? 0 : 3);
buf[3] = 0;
buf[4] = BCD(this->index + 1);
buf[5] = BCD(this->index);
int lba_rel = this->lba - this->toc.tracks[this->index].start;
LBAToMSF(lba_rel, &msf);
buf[6] = BCD(msf.m);
buf[7] = BCD(msf.s);
buf[8] = BCD(msf.f);
LBAToMSF(this->lba + 150, &msf);
buf[9] = BCD(msf.m);
buf[10] = BCD(msf.s);
buf[11] = BCD(msf.f);
bool subq_send = false;
if (this->state == PCECD_STATE_READ)
{
if (this->latency > 0)
@@ -408,13 +431,13 @@ void pcecdd_t::Update() {
if (this->latency > 0)
{
this->latency--;
return;
goto skip;
}
if (this->audiodelay > 0)
{
this->audiodelay--;
return;
goto skip;
}
this->index = GetTrackByLBA(this->lba, &this->toc);
@@ -434,7 +457,7 @@ void pcecdd_t::Update() {
ReadCDDA(sec_buf + 2);
if (SendData)
SendData(sec_buf, 2352 + 2, PCECD_DATA_IO_INDEX);
SendData(sec_buf, 2352 + 2, PCECD_CDDA_IO_INDEX);
//printf("\x1b[32mPCECD: Audio sector send = %i, track = %i, offset = %i\n\x1b[0m", this->lba, this->index, (this->lba * 2352) - this->toc.tracks[index].offset);
}
@@ -460,15 +483,37 @@ void pcecdd_t::Update() {
this->int_pend = false;
}
skip:
if (this->subq_pend) {
this->subq_pend = false;
subq_send = true;
}
}
else if (this->state == PCECD_STATE_PAUSE)
{
subq_send = this->subq_pend;
this->subq_pend = false;
if (this->latency > 0)
{
this->latency--;
return;
}
}
else
{
subq_send = this->subq_pend;
this->subq_pend = false;
}
if (subq_send) {
subq_send = false;
if (SendData)
SendData(buf, 10 + 2, PCECD_DATA_IO_INDEX);
SendStatus(MAKE_STATUS(PCECD_STATUS_GOOD, 0));
}
}
void pcecdd_t::CommandExec() {
@@ -752,31 +797,9 @@ void pcecdd_t::CommandExec() {
break;
case PCECD_COMM_READSUBQ: {
int lba_rel = this->lba - this->toc.tracks[this->index].start;
this->subq_pend = true;
buf[0] = 0x0A;
buf[1] = 0 | 0x80;
buf[2] = this->state == PCECD_STATE_PAUSE ? 2 : (this->state == PCECD_STATE_PLAY ? 0 : 3);
buf[3] = 0;
buf[4] = BCD(this->index + 1);
buf[5] = BCD(this->index);
LBAToMSF(lba_rel, &msf);
buf[6] = BCD(msf.m);
buf[7] = BCD(msf.s);
buf[8] = BCD(msf.f);
LBAToMSF(this->lba+150, &msf);
buf[9] = BCD(msf.m);
buf[10] = BCD(msf.s);
buf[11] = BCD(msf.f);
if (SendData)
SendData(buf, 10 + 2, PCECD_DATA_IO_INDEX);
//printf("\x1b[32mPCECD: Command READSUBQ, [1] = %02X, track = %i, index = %i, lba_rel = %i, lba_abs = %i\n\x1b[0m", comm[1], this->index + 1, this->index, lba_rel, this->lba);
SendStatus(MAKE_STATUS(PCECD_STATUS_GOOD, 0));
printf("\x1b[32mPCECD: Command READSUBQ, [1] = %02X, track = %i, index = %i, lba_abs = %i\n\x1b[0m", comm[1], this->index + 1, this->index, this->lba);
}
break;