Viewing Issue Advanced Details
|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)|
|Version||0.197||Fixed in Version||0.198||Build||64-bit|
|Summary||06982: Other Coco related drivers: 1bit audio DAC issue|
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."
|Steps To Reproduce||
... or ...or
You will not hear any audio. You will on a real Coco.
|Additional Information||Thanks for any help you can provide!|
|Affected Sets / Systems||Other Coco related drivers|
1bit-bug.zip (9,628 bytes) May 24, 2018, 15:06 Uploaded by MrGW
|There are no relationship linked to this issue.|
May 27, 2018, 15:28
|Mea culpa. I've fixed this in 9b27fcb332a195a41a5b8caaf89af98486069748.|
May 27, 2018, 21:53
|AJR - thank you!|