Miroirs/mame
1
0
Fork 0
mirror of https://github.com/mamedev/mame.git synced 2024-11-16 07:48:32 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Changes LFO Frequency table entry 232 from 13.35547 to 14.35547 as per discussions of the list. Adds notes about it and the other error in the manual. IE entry 201 & 202 were the same 3.74490 and 202 has been changed to 3.92 which is "about right"

Browse source
This commit is contained in:
Brian Troha 2007-12-23 15:21:00 +00:00
parent 28e5db00d5
commit 975f32f1cc
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/emu/sound/ymf271.c
View file

@ -158,6 +158,14 @@ static const double DCTime[] =
11.41, 9.12, 7.60, 6.51, 5.69, 5.69, 5.69, 5.69
};
/* Notes about the LFO Frequency Table below;
There appears to be at least 2 errors in the table from the original manual.
Both 201 & 202 where listed as 3.74490. 202 has be changed to 3.92000 which is "about right"
232 was listed as 13.35547. We use 14.35547 as it apears to be the correct value
*/
static const double LFO_frequency_table[256] =
{
0.00066, 0.00068, 0.00070, 0.00073, 0.00075, 0.00078, 0.00081, 0.00084,
@ -189,7 +197,7 @@ static const double LFO_frequency_table[256] =
5.38330, 5.55696, 5.74219, 5.94019, 6.15234, 6.38021, 6.62560, 6.89062,
7.17773, 7.48981, 7.83026, 8.20312, 8.61328, 9.06661, 9.57031, 10.13327,
10.76660, 11.11391, 11.48438, 11.88039, 12.30469, 12.76042, 13.25120, 13.78125,
13.35547, 14.97962, 15.66051, 16.40625, 17.22656, 18.13322, 19.14062, 20.26654,
14.35547, 14.97962, 15.66051, 16.40625, 17.22656, 18.13322, 19.14062, 20.26654,
21.53320, 22.96875, 24.60938, 26.50240, 28.71094, 31.32102, 34.45312, 38.28125,
43.06641, 49.21875, 57.42188, 68.90625, 86.13281, 114.84375, 172.26562, 344.53125
};