pub static RENDER_BUFFER_DOT_DELAY: AtomicU32Expand description
Tunable PPU-dot countdown: $2007 read-during-rendering to reload.
The PPUDATA state machine reloads data_buffer from the fetch cadence
(TriCNES PPU_DATA_StateMachine latch cascade: read-end -> ALE +2 ->
reload +4 dots; with R1’s fixed CPU<->PPU mod-4 phase the landing is a
constant offset from the register-read sample point). 0 = immediate.
Default 5 = the empirical winner (W2 sweep 0-12: 5 -> 170/170 stable
reads on the $2007 Stress answer key; 6/7 -> 169; everything else
far below). Env knob RUSTYNES_2007_DELAY (wired in the diag bins).