MAME Git Changelog:
* Left a comment in AY8910.c about io ports A and B. (nw)
The io ports are designed as open collector outputs. Bits 7 and 8 of
AY_ENABLE only enable (low) or disable (high) the pull up resistors.
The YM2149 datasheet specifies those pull up resistors as 60k to 600k
(min / max). We do need a callback for those two flags. Kid Niki (Irem
m62) is one such case were it makes a difference in comparison to a
standard TTL output.
* just some whitespace cleanup, no functional change
* Analog drums and filtering for Kid Niki et al. [Andrew Gardner,
Couriersud]
In addition:
- Generalized the device family concept.
- Truthtable device can now define their own device family model.
* small cleanup
Download:MAME Git (2015/06/22) x86
Download:MAME Git (2015/06/22) x64
Source: Here
0 Comments
Post a Comment