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comparison cdd_mcu.c @ 2100:539450d905b3

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Fix CDD PLAY command and CDD fader sample alignment
author Michael Pavone <pavone@retrodev.com>
date Wed, 09 Feb 2022 23:39:03 -0800
parents 460c93c19146
children e93ced356a21
comparison
equal deleted inserted replaced
2099:b92c998c6742 2100:539450d905b3
483 context->error_status = DS_CMD_ERROR; 483 context->error_status = DS_CMD_ERROR;
484 break; 484 break;
485 } 485 }
486 if (context->status == DS_STOP || context->status == DS_TOC_READ) { 486 if (context->status == DS_STOP || context->status == DS_TOC_READ) {
487 context->seeking = 1; 487 context->seeking = 1;
488 context->seek_pba = LEADIN_SECTORS + context->media->tracks[0].fake_pregap + context->media->tracks[0].start_lba; 488 context->seek_pba = LEADIN_SECTORS + context->media->tracks[0].fake_pregap + context->media->tracks[0].start_lba - 4;
489 printf("CDD CMD: PAUSE, seeking to %u\n", context->seek_pba); 489 printf("CDD CMD: PLAY, seeking to %u\n", context->seek_pba);
490 } else { 490 } else {
491 puts("CDD CMD: PAUSE"); 491 puts("CDD CMD: PLAY");
492 } 492 }
493 context->status = DS_PLAY;
493 break; 494 break;
494 //TODO: CMD_FFWD, CMD_RWD 495 //TODO: CMD_FFWD, CMD_RWD
495 case CMD_TRACK_SKIP: 496 case CMD_TRACK_SKIP:
496 if (context->status != DS_PLAY && context->status != DS_PAUSE && context->status != DS_DISC_LEADOUT) { 497 if (context->status != DS_PLAY && context->status != DS_PAUSE && context->status != DS_DISC_LEADOUT) {
497 context->error_status = DS_CMD_ERROR; 498 context->error_status = DS_CMD_ERROR;
598 context->last_nibble_cycle = context->cycle; 599 context->last_nibble_cycle = context->cycle;
599 next_cmd_nibble = context->cycle + NIBBLE_CLOCKS; 600 next_cmd_nibble = context->cycle + NIBBLE_CLOCKS;
600 } 601 }
601 } 602 }
602 if (context->cycle >= context->next_byte_cycle) { 603 if (context->cycle >= context->next_byte_cycle) {
603 if (context->current_sector_byte >= 0) { 604 if (context->current_sector_byte >= 0 && (!fader->byte_counter || context->current_sector_byte)) {
604 uint8_t byte = context->media->read(context->media, context->current_sector_byte); 605 uint8_t byte = context->media->read(context->media, context->current_sector_byte);
605 lc8951_write_byte(cdc, cd_block_to_mclks(context->cycle), context->current_sector_byte++, byte); 606 lc8951_write_byte(cdc, cd_block_to_mclks(context->cycle), context->current_sector_byte++, byte);
606 cdd_fader_data(fader, gate_array[GAO_CDD_CTRL] & BIT_MUTE ? 0 : byte); 607 cdd_fader_data(fader, gate_array[GAO_CDD_CTRL] & BIT_MUTE ? 0 : byte);
607 } else { 608 } else {
608 cdd_fader_data(fader, 0); 609 cdd_fader_data(fader, 0);
610 if (context->current_sector_byte >= 0) {
611 next_subcode += BYTE_CLOCKS;
612 context->last_subcode_cycle += BYTE_CLOCKS;
613 }
609 } 614 }
610 if (context->current_sector_byte == 2352) { 615 if (context->current_sector_byte == 2352) {
611 context->current_sector_byte = -1; 616 context->current_sector_byte = -1;
612 } 617 }
613 context->next_byte_cycle += BYTE_CLOCKS; 618 context->next_byte_cycle += BYTE_CLOCKS;