| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 06982 | Gameplay | Critical (emulation) | Always | May 24, 2018, 14:46 | May 27, 2018, 21:53 |
| Tester | MrGW | View Status | Public | Platform | MAME (Self-compiled) |
| Assigned To | AJR | Resolution | Fixed | OS | Linux (64-bit) |
| Status [?] | Resolved | Driver | |||
| Version | 0.197 | Fixed in Version | 0.198 | Build | 64-bit |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary |
 06982: Other Coco related drivers: 1bit audio DAC issue |
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| Description |
William Schaub reported this issue to me after discovering the issue doing some software development. William's comments: "There are two programs on the 1bit.dsk SLTON.BIN assembled from slton.asm with lwasm with a listing in slton.lst This program appears on page 278 of the Assembly Language Programming for the Color Computer (1985) (Laurence A Tepolt).pdf file. Block at $4000 (16384) of length $003A ( 58): end at $403A BIN file length: $0044 ( 68) Entry point : $4000 (16384) Content length : $003A ( 58) Overhead : 17.2 % Single continuous block goes from $4000 (16384) to $403A (16442) P25.BIN: assembled from P25.ASM with lwasm with a listing in P25.lst this program appears as program 25 in the 6809_ch14_15.pdf file. Block at $3E00 (15872) of length $0124 ( 292): end at $3F24 BIN file length: $012E ( 302) Entry point : $3E00 (15872) Content length : $0124 ( 292) Overhead : 3.4 % Single continuous block goes from $3E00 (15872) to $3F24 (16164) On MAME these two programs are totally silent. On XRoar and a real Coco 2 they both produce sound. I think somehow the 1bit dac is not being routed properly somehow." |
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| Steps To Reproduce |
Mount 1bitsound.dsk LOADM "SLTON.BIN" EXEC ... or ...or LOADM"P25.BIN" EXEC You will not hear any audio. You will on a real Coco. |
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| Additional Information | Thanks for any help you can provide! | ||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | |||||
| Affected Sets / Systems | Other Coco related drivers | ||||
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Attached Files
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 1bit-bug.zip (9,628 bytes) May 24, 2018, 15:06 Uploaded by MrGW | ||||
 No.15049
AJR Developer
May 27, 2018, 15:28
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Mea culpa. I've fixed this in 9b27fcb332a195a41a5b8caaf89af98486069748. |
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No.15050
MrGW Tester
May 27, 2018, 21:53
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AJR - thank you! |