core vdp, avoid rendering if no changes to RAMs/registers
authorkub <derkub@gmail.com>
Thu, 27 Apr 2023 20:18:55 +0000 (22:18 +0200)
committerkub <derkub@gmail.com>
Thu, 27 Apr 2023 20:18:55 +0000 (22:18 +0200)
commitf9ed944604effd3122052e3ae3d7712e5aabdd89
treefac33a85459f469ad50ffddc656ba6def4c90b62
parent0c9c8e479698fa8a2790fa6ab1221a2b198d1bac
core vdp, avoid rendering if no changes to RAMs/registers

mainly benefits 32X in faster/fastest rendering mode, 0-5% saved
pico/32x/32x.c
pico/draw.c
pico/pico.h
pico/pico_cmn.c
pico/pico_int.h
pico/videoport.c