Exporting

The File menu writes a document out in the forms the hardware loads. Each command asks where to save the file. A command the document has no such form for is unavailable.

Screens, tiles and sprite patterns are written from the current asset’s current frame.

PNG

Export PNG… writes the document as a Block’Ed PNG: the same file as the document, with the extension .png. Other programs show the artwork; Block’Ed opens it as a document. The format is specified on File Formats.

Screen

Export Screen (.scr)… writes the screen in the layout the display reads from memory. With ULA+, the 64 registers follow the attributes, one byte each.

If a ULA document has its top-left pixel set and no ULA+, its screen file is 6912 bytes and the first byte is $80. A ULA or Hi-Colour canvas of any other size has no screen file.

Tiles

Export Tiles (.til)… writes every whole 8 × 8 tile, left to right and then top to bottom. Each tile is 32 bytes: eight rows of four bytes, two pixels to a byte with the left pixel in the upper four bits. Palette offsets are not written.

If a tiles document is 16 × 8, the file is 64 bytes: two tiles.

Sprite patterns

Export Sprite Patterns (.spr)… writes every whole 16 × 16 pattern, left to right and then top to bottom. A 4-bit sprite document writes 128 bytes a pattern, packed as tiles are. An 8-bit sprite document writes 256 bytes a pattern, one byte a pixel. Palette offsets are not written.

If a 4-bit sprite document is 32 × 16, the file is 256 bytes: two patterns.

Palettes

Palettes are exported from the Palettes panel; see Colours and Palettes.

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