---: |
Opcode - |
Function - |
Graphic |
---: |
00 |
Do Nothing |
Yes |
---: |
11 |
Stop the program running |
Yes |
---: |
21 |
Set The Sterling Position register |
Yes |
---: |
22 |
Set the Decimal point register |
Yes |
---: |
30 |
Set the row binary register |
Yes |
---: |
31 |
Row Binarise the 1 stream in reg B |
Yes |
---: |
32 |
Row Binarise the 2 stream in reg B |
Yes |
---: |
33 |
Row Binarise the 4 stream in reg B |
Yes |
---: |
34 |
Row Binarise the 8 stream in reg B |
Yes |
---: |
35 |
Logical AND Register B and IAS |
Yes |
---: |
36 |
Logical OR Register B and IAS |
Yes |
---: |
37 |
Transfer from IAS to Register B |
Yes |
---: |
38 |
Send an input-output command |
No |
Double Length |
39 |
Send Mag Tape control command |
No |
---: |
40 |
Zeroise IAS Location |
Yes |
---: |
41 |
Store Register A in IAS |
Yes |
---: |
42 |
Store Register B in IAS |
Yes |
---: |
43 |
Store Register C in IAS |
Yes |
---: |
44 |
Transfer Register C to Register B |
Yes |
---: |
45 |
Block Move In IAS |
Yes |
---: |
54 |
Circulate left in Register B |
Yes |
---: |
55 |
Left Shift Reg B entering Zero's |
Yes |
---: |
56 |
Right Shift Reg B (Propogating Sign) |
Yes |
---: |
57 |
Shift Register B Right |
Yes |
---: |
60 |
Clear Add IAS and Reg B |
Yes |
---: |
61 |
Clear Sub IAS and Reg B |
Yes |
---: |
62 |
Add Register Reg B and IAS |
Yes |
---: |
63 |
Sub Register Reg B and IAS |
Yes |
---: |
64 |
Add Register Reg B to IAS |
Yes |
---: |
65 |
Subtract Register Reg B from IAS |
Yes |
---: |
66 |
Increment IAS Location |
Yes |
---: |
67 |
Decrement IAS Location |
Yes |
---: |
68 |
Compare IAS Location and Ragister B |
Yes |
---: |
69 |
Multiply IAS and Register B |
Yes |
---: |
70 |
Sterling Clear Add IAS and Reg B |
Yes |
---: |
71 |
Sterling Clear Sub IAS and Reg B |
Yes |
---: |
72 |
Sterling Add Register Reg B and IAS |
Yes |
---: |
73 |
Sterling Sub Register Reg B and IAS |
Yes |
---: |
74 |
Sterling Add Register Reg B to IAS |
Yes |
---: |
75 |
Sterling Subtract Register Reg B from IAS |
Yes |
---: |
76 |
Sterling Increment IAS Location |
Yes |
---: |
77 |
Sterling Decrement IAS Location |
Yes |
---: |
78 |
Sterling Compare IAS Location and Ragister B |
Yes |
---: |
79 |
Sterling Multiply IAS and Register B |
Yes |
Double Length |
80 |
Transfer IAS to Drum |
Yes |
Double Length |
81 |
Transfer Drum to IAS |
Yes |
Double Length |
82 |
Transfer IAS to Drum (whole channel) |
Yes |
Double Length |
83 |
Transfer Drum to IAS (whole channel) |
Yes |
Double Length |
84 |
Transfer IAS to Drum (Reserved Decade) |
Yes |
Double Length |
85 |
Transfer Drum to IAS (Reserved Decade) |
Yes |
Double Length |
86 |
Transfer IAS to Drum (Reserved Channel) |
Yes |
Double Length |
87 |
Transfer Drum to IAS (Reserved Channel) |
Yes |
Unique to Flossie |
28 |
Instruction premodifier |
No |