diff options
Diffstat (limited to 'src/emu/xtal.cpp')
-rw-r--r-- | src/emu/xtal.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/emu/xtal.cpp b/src/emu/xtal.cpp index aa58705baf2..2679feaae80 100644 --- a/src/emu/xtal.cpp +++ b/src/emu/xtal.cpp @@ -31,9 +31,11 @@ tolerance so be sure to reference existing parts only and not just accept direct readings as 100% true. - MAME doesn't yet support fractions in crystal frequencies. For example, - XTAL(3'579'545) should actually be 3579545.454545...Hz (39375000/11). - This is no problem though: see above note about tolerance. + MAME supports fractions in crystal frequencies, but for historical + and readability reasons we tend to write the closest integer + value. For example, XTAL(3'579'545) should actually be + 3579545.454545...Hz (39375000/11). This is no problem though: see + above note about tolerance. In the "Examples" column, please don't add 1000 examples, this is just for interest, so two or three examples is enough. |