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Routines |
| Prev: A8A2 | Up: Map | Next: A8E7 |
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This plots the complete rightmost column of tiles.
Used by the routines at shunt_map_left and shunt_map_down_left.
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| plot_rightmost_tiles | A8CF | LD DE,$F10F | Point DE at the 24x17 visible tiles array ("tile_buf") rightmost column [+23] | |
| A8D2 | EXX | Bank | ||
| A8D3 | LD HL,$FF5E | Point HL' at the 7x5 supertile indices buffer ("map_buf") rightmost supertile [+6] | ||
| A8D6 | LD DE,$F2A7 | Point DE' at the 24x17x8 screen buffer ("window_buf") rightmost column [+23] | ||
| A8D9 | LD A,($81BB) | Compute the column offset by ANDing the map's X position with 3 | ||
| A8DC | AND $03 | |||
| A8DE | JR NZ,plot_rightmost_tiles_0 | If column offset is zero - use the previous supertile CHECK | ||
| A8E0 | DEC HL | |||
| plot_rightmost_tiles_0 | A8E1 | LD A,($81BB) | Get the map's X coordinate | |
| A8E4 | DEC A | Decrement it | ||
| A8E5 | JR plot_vertical_tiles_common | Jump to plot_vertical_tiles_common | ||
| Prev: A8A2 | Up: Map | Next: A8E7 |