[stella] horizontal timing issues

Subject: [stella] horizontal timing issues
From: gentlben@xxxxxxxxxxxx
Date: Sat, 03 Jul 1999 11:14:42 -0700
yeah, its me again...im beginning to really experiment with the 2600
stuff now, and
ive a few questions related to horizontal stuff:

1. ive noticed that theres a conflict (well, sort of) between
the stella document and nick bensema's guide to cycle counting...
nick's document says that the TIA registers are read only ever 5 cycles,

while the stella document it merely takes 5 cycles to write to them...
i mused with the idea of working with the DEY-BNE loop but i noticed
that if the branch is not taken, it only takes 4 cycles...would the TIA
round
this to a multiple of 15 automatically, or would this throw timing off
by 3
color clocks?

2. does it matter whether i use the RESXX registers first or the
horizontal movement
registers?

dee


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