Column meaning

Dataset

Data row number	Meaning
1	2 x − 1 {displaystyle 2^{x}-1}
2	Absolute value
3	Add
4	Add and pop
5	Load BCD
6	Store BCD and pop
7	Change sign
8	Clear exceptions
9	Compare
10	Compare and pop
11	Compare and pop twice
12	Decrement floating point stack pointer
13	Disable interrupts
14	Divide
15	Divide and pop
16	Divide reversed
17	Divide reversed and pop
18	Enable interrupts
19	Free register
20	Integer add
21	Integer compare
22	Integer compare and pop
23	Integer divide
24	Integer divide reversed
25	Load integer
26	Integer multiply
27	Increment floating point stack pointer
28	Initialize floating point processor
29	Store integer
30	Store integer and pop
31	Integer subtract
32	Integer subtract reversed
33	Floating point load
34	Load 1.0 onto stack
35	Load control word
36	Load environment state
37	Load environment state, 16-bit
38	Load log2(e) onto stack
39	Load log2(10) onto stack
40	Load log10(2) onto stack
41	Load ln(2) onto stack
42	Load π onto stack
43	Load 0.0 onto stack
44	Multiply
45	Multiply and pop
46	Clear exceptions, no wait
47	Disable interrupts, no wait
48	Enable interrupts, no wait
49	Initialize floating point processor, no wait
50	No operation
51	Save FPU state, no wait, 8-bit
52	Save FPU state, no wait, 16-bit
53	Store control word, no wait
54	Store FPU environment, no wait
55	Store FPU environment, no wait, 16-bit
56	Store status word, no wait
57	Partial arctangent
58	Partial remainder
59	Partial tangent
60	Round to integer
61	Restore saved state
62	Restore saved state
63	Save FPU state
64	Save FPU state, 16-bit
65	Scale by factor of 2
66	Square root
67	Floating point store
68	Store control word
69	Store FPU environment
70	Store FPU environment, 16-bit
71	Store and pop
72	Store status word
73	Subtract
74	Subtract and pop
75	Reverse subtract
76	Reverse subtract and pop
77	Test for zero
78	Wait while FPU is executing
79	Examine condition flags
80	Exchange registers
81	Extract exponent and significand
82	y · log2 x
83	y · log2 (x+1)