Target Modes

Every mode Block’Ed draws in, as the Mode menu names it.

Mode	Machines	Full screen	Size step	Pixel	Colours	Cells
ULA	Spectrum, Timex, Next	256 × 192	8 × 8	square	8, each normal or BRIGHT; 64 with ULA+	8 × 8 attributes
Hi-Colour	Timex, Next	256 × 192	8 × 1	square	8, each normal or BRIGHT; 64 with ULA+	8 × 1 attributes
Hi-Res	Timex, Next	512 × 192	1 × 1	half width	2: an ink and its complement	none
Layer 2 256 colours	Next	320 × 256	1 × 1	square	256-entry palette	none
Layer 2 16 colours	Next	640 × 256	1 × 1	half width, or square	16-entry palette	none
LoRes 256 colours	Next	128 × 96	1 × 1	square	256-entry palette	none
LoRes 16 colours	Next	128 × 96	1 × 1	square	one bank of 16 in a 256-entry palette	none
4-bit sprites	Next	16 × 16	16 × 16	square	one bank of 16 per pattern, in a 256-entry palette	16 × 16 patterns
8-bit sprites	Next	16 × 16	16 × 16	square	256-entry palette	16 × 16 patterns
4-bit tiles	Next	8 × 8	8 × 8	square	one bank of 16 per tile, in a 256-entry palette	8 × 8 tiles

A canvas is any whole number of size steps up to 4096 pixels in each direction. The full screen is the size a new document starts at.

Palettes

The palette modes start with the Next’s hardware default palette, and Layer 2 16 colours with a 16-colour default. Every palette entry is one of the Next’s 512 colours: 8 levels each of red, green and blue.

ULA, Hi-Colour and Hi-Res have fixed colours. With ULA+, ULA and Hi-Colour have 64 registers whose blue takes 4 levels: 0, 3, 5 and 7 of 7.

Transparency

Mode	Transparent value
4-bit sprites	3
8-bit sprites	227 (`$E3`)
4-bit tiles	15 (`$F`)

The transparent value is a stored value: in the 4-bit modes it is the same value in every bank. It can be changed in the foreground picker; see Colours and Palettes.

The Layer 2 and LoRes modes have a transparent palette index instead, which starts unset.

Write switches

Mode	Toolbar switches
ULA, Hi-Colour	INK, PAPER, BRIGHT, FLASH
4-bit sprites, 4-bit tiles	PIXEL, BANK
every other mode	none

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