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BLTBDAT

Offset: $072 Access: write Chipset: OCS/ECS/AGA

Holds the source B word used by the blitter.

Bitfields

A write immediately runs the B barrel shifter using the current BLTCON1 BSH and DESC values. Area blits with USEB clear consume this shifted hold word; changing BSH before starting the blit does not shift it again. Line mode uses BLTBDAT as its texture and applies the live BSH value.