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URL https://opencores.org/ocsvn/tiny64/tiny64/trunk

Subversion Repositories tiny64

[/] [tiny64/] [trunk/] [irBits.txt] - Blame information for rev 4

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Line No. Rev Author Line
1 2 riedelx 
cctest:  31..28
2 
  0000 ever true         always
3 
  0001 carry clear       CC
4 
  0010 carry set         CS
5 
  0011 zero set          EQ
6 
  0100 greater equal     GE
7 
  0101 greater than      GT
8 
  0110 higher            HI
9 
  0111 less equal        LE
10 
  1000 less              LS
11 
  1001 less than         LT
12 
  1010 minus             MI
13 
  1011 zero clear        NE
14 
  1100 plus              PL
15 
  1101 overflow clear    VC
16 
  1110 overflow set      VS
17 
  1111 ever false        never
18 
 
19 
alumode:  27..24
20 
  0000 mov
21 
  0001 and
22 
  0010 or
23 
  0011 xor
24 
  0100 add
25 
  0101 sub
26 
  0110 ror
27 
  0111 lsr
28 
  1000 lsra
29 
  1001 swap
30 
  1010 swapb
31 
  1011 inc
32 
  1100 dec
33 
  1101 rorb
34 
 
35 
memmux: 23
36 
 
37 
  1 use memory
38 
 
39 
clkmux: 22..20
40 
  000 R0
41 
  001 R1
42 
  010 R2
43 
  011 R3
44 
  100 R4
45 
  101 R5
46 
  110 R6
47 
  111 R7
48 
 
49 
drive data bus: 19
50 
 
51 
  1 drive databus from opamux
52 
 
53 
opamux: 18..16
54 
  000 R0
55 
  001 R1
56 
  010 R2
57 
  011 R3
58 
  100 R4
59 
  101 R5
60 
  110 R6
61 
  111 R7
62 
 
63 
valmux: 15
64 
 
65 
  1 use immediate
66 
 
67 
opbmux: 14..12
68 
  000 R0
69 
  001 R1
70 
  010 R2
71 
  011 R3
72 
  100 R4
73 
  101 R5
74 
  110 R6
75 
  111 R7
76 
 
77 
flagupdate: 11
78 
 
79 
  1 change flag
80 
 
81 
carry use: 10
82 
 
83 
  1 use carry

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