SUB2r ISP

	B	C	D	F	G	H	I	J	K	O	P	Q
1
2	HSL->RGB
3	HSL->RGB
4	nominal input values			hardware values		HEX	coeff. to normalized	control	diff	division-free MOD(x, 91*2^14)
5	name	range	value	bits	value	HEX	coeff. to normalized	control	diff
6	H	-180°..+180°	240.00°	14s	10922	0x00002AAA	180/2^13	239.9854°	0.0041%
7	S	0..255	255	9	510	0x000001FE	1/2	255.000	0.0000%	formula: =MOD(G16, (2^14*273/3))
8	L	0..255	128	12	2042	0x000007F9	1/2^4	127.600	0.0000%	MOD(G16, 912^14) = G16 - (912^14) * INT(G16 * 90 / 2^27)
9	h	0°..360°	240.00°	14	10922	0x00002AAA	360/2^14	239.985	0.0041%	MOD(G16, 912^14) = G16 - (912^14) * INT(G16 * 90 / 2^27)
10	s	0..1	0.9961
11	l	0..1	0.4984							H'	2981706
12										m=91*2^14	1490944
13	floating-point "precise" math from wiki			integer arithmetics						int(G16/m)	1	1
14	L' = 1-\|2l-1\|	0..1	0.99688	12	4083.2	0x00000FF3	1/2^12	0.99688	0.0000%	G16 - m * int(G16/m)	1490762	1490762
15	C = L' * S	0..1	0.99298	21	2082432	0x001FC680	1/2^21	0.99298	0.0000%
16	H' = h / 60	0..5.9(9)	4.00000	23	2981706	0x002D7F4A	180/2^27	3.99878	0.0203%
17	H'₂ = H' mod 2	0..2	0.00000	21	1490762	0x0016BF4A	180/2^27	1.99927	99.9634%
18	H'₂₋₁ = H' mod 2 - 1	-1..+1	-1.00000	21s	745290	0x000B5F4A	180/2^27	0.99951	99.9756%
19	1-\|H' mod 2 - 1\|	0..1	0.00000	21	182	0x000000B6	180/2^27	0.00024	0.0244%
20	X = C * H'final	0..1	0.00000	21	508	0x000001FC	1/2^21	0.00024	0.0242%
21	R1	0..1	0.00000	21	0	0x00000000	1/2^21	0.00000	0.0000%
22	G1	0..1	0.00000	21	508	0x000001FC	1/2^21	0.00024	0.0242%
23	B1	0..1	0.99298	21	2082432	0x001FC680	1/2^21	0.99298	0.0000%
24	m	0..1	0.00195	12	7	0x00000007	1/2^12	0.00171	0.0238%
25	R	0..1023	1	10	1	0x00000001	1	1	0.0000%
26	G	0..1023	1	10	1	0x00000001	1	1	0.0000%
27	B	0..1023	1018	10	1018	0x000003FA	1	1018	0.0000%
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