System ROM tables

All (?) system ROMs provide lookup tables for games to use. Red lines represent zero.

=METRIC_DATA ($C02000)=

Actually two 64, 64-entry byte tables at $C02000 and $C03000 which might be used for animation easing/smoothing.

$C02000
Goes from 64~0 to 64~32.



$C03000
Goes from 0~63 to 63~89.



=SIN_DATA ($C04000)=

Two identical glitchy half-sine tables of 128 signed 16-bit words. The value overflows for one entry (at the top of the curve). There's also a glitch with two very close values in the 3rd quarter of each table.



=RND_DATA ($C04200)=

256 "random" bytes. Do all values appear once ?