Sprite Attribute 0 (with INC) Register
From SpecNext Wiki
| Number | TBRegisterNumber::$75 |
|---|---|
| Readable | TBRegisterReadable::No |
| Writable | TBRegisterWritable::Yes |
| Short Description | [[ShortDesc::Same as {{#ask:
TBRegisterNumber::$35 }} ($35) (write first byte of sprite-attributes), plus increments {{#ask: TBRegisterNumber::$34 }} ($34)]] |
Eight low bits of X position. MSB of X-pos is in "byte 3".
After write into sprite-attribute "byte 1" ({{#ask: PortNumber::$xx57 }} ($xx57{{#ask: PortNumber::$xx57 |mainlabel=- |headers=hide |intro= / |?NumberDec#- }})), the {{#ask: TBRegisterNumber::$34 }} ($34) is incremented (with all consequences stemming from such action). If the sprite 63 was modified, the result of the increment is officially "undefined behaviour", and code should explicitly set valid 0..63 sprite index before next sprite-attribute manipulation.