[hatari-devel] some videl emulation news

Laurent Sallafranque laurent.sallafranque at free.fr
Sun Jun 5 23:46:29 CEST 2011


Hi,

A little point about videl emulation :

I've coded half the stuff (I think).

I encounter major problems for now :
   - I've changed a lot of code in video.c, mfp.c, ... (timer_b and hbl 
are called from mfp "in hard".
   - mouse doesn't move anymore
   - it's really slow
   - I don't understand well how to code the timer_b
   - I don't know how to simulate the 19 waitstates that are taken by 
the videl when he loads datas from stRam
   - Sometimes, the same line is copied twice, which means that the 
videl's got an internal memory, but how much ?
   - When and how is it filled ?

A lot of questions and a lot of work before getting something working 
for now.

Regards

Laurent




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