FANJIX

FANJIX computer is a new kind of processor instruction codes, for esoteric programming. It was designed by User:Zzo38 in 2010.

Each byte is 40 bits long. An address is 40 bits long. Each register is 40 bits long. An instruction is 80 bits long, which must be aligned.

Registers
Reg. no.	Meaning
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
rA	Address register
rC	Copy register
rD	Data register (read/write memory at address rA)
rI	Instruction register (address of current instruction)
rP	All bits of rX turned backwards
rQ	(!(rX&rY))<<1
rS	Shift register
rX	X operand register
rY	Y operand register
r+	(rX&rY)<<1
r|	(rX|rY)
r&	~(rX&rY)
r?	(rX&~rY)<<1

Instruction bits (left half)
Bit no.	Meaning
0	Read r0
1	Read r1
2	Read r2
3	Read r3
4	Read r4
5	Read r5
6	Read r6
7	Read r7
8	Read r8
9	Read r9
10	Write r0
11	Write r1
12	Write r2
13	Write r3
14	Write r4
15	Write r5
16	Write r6
17	Write r7
18	Write r8
19	Write r9
20	Read rD
21	Write rD
22	Read r?
23	Copy rI to rC
24	Write rX
25	Write rY
26	Read r+
27	Read r|
28	Read rX
29	Read r&
30	Read rY
31	Read rS
32	Write rS
33	Read rA
34	Write rA
35	Next instruction address XORed by rC
36	Next instruction address XORed by rQ
37	Next instruction address XORed by rD
38	Read rC
39	Read rP
Instruction bits (right half)
Bit no.	Meaning
39…1	Next instruction address
0	This bit shifted into rS register

Order of operations:

1. Read registers according to instruction bits, XOR together the results
2. Bit0 of right half shifted into rS (rS=(rS<<1)|(1&*(rI|1));)
3. Write XORed result to all registers according to instruction bits
4. Next instruction is selected, by setting rI (rC and rQ is reading at first step, if necessary)
5. Repeat!