Offset: $106 Access: write Chipset: ECS/AGA
Controls ECS/AGA borders, sprite resolution, and AGA palette addressing.
Bitfields¶
Bits 15-13: BANK, AGA palette bank (0-7).
Bits 12-10: PF2OF, AGA playfield 2 palette offset.
Bit 9: LOCT, AGA low colour-nibble selection.
Bits 7-6: SPRES, sprite resolution (default/lores/hires/superhires).
Bit 5: BRDRBLNK, blank border.
Bit 4: BRDNTRAN, opaque border for genlock.
Bit 2: ZDCLKEN, genlock clock output.
Bit 1: BRDRSPRT, sprites in the border.
Bit 0: EXTBLKEN, external blanking control.
Bits 8 and 3 are unused. ECS implements only the extended Denise subset; AGA adds the palette and sprite controls.