1[
2    {
3        "EventCode": "0xC1",
4        "Counter": "0,1,2,3",
5        "UMask": "0x8",
6        "Errata": "HSD56, HSM57",
7        "EventName": "OTHER_ASSISTS.AVX_TO_SSE",
8        "SampleAfterValue": "100003",
9        "BriefDescription": "Number of transitions from AVX-256 to legacy SSE when penalty applicable.",
10        "CounterHTOff": "0,1,2,3,4,5,6,7"
11    },
12    {
13        "EventCode": "0xC1",
14        "Counter": "0,1,2,3",
15        "UMask": "0x10",
16        "Errata": "HSD56, HSM57",
17        "EventName": "OTHER_ASSISTS.SSE_TO_AVX",
18        "SampleAfterValue": "100003",
19        "BriefDescription": "Number of transitions from SSE to AVX-256 when penalty applicable.",
20        "CounterHTOff": "0,1,2,3,4,5,6,7"
21    },
22    {
23        "PublicDescription": "Number of X87 FP assists due to output values.",
24        "EventCode": "0xCA",
25        "Counter": "0,1,2,3",
26        "UMask": "0x2",
27        "EventName": "FP_ASSIST.X87_OUTPUT",
28        "SampleAfterValue": "100003",
29        "BriefDescription": "Number of X87 assists due to output value.",
30        "CounterHTOff": "0,1,2,3,4,5,6,7"
31    },
32    {
33        "PublicDescription": "Number of X87 FP assists due to input values.",
34        "EventCode": "0xCA",
35        "Counter": "0,1,2,3",
36        "UMask": "0x4",
37        "EventName": "FP_ASSIST.X87_INPUT",
38        "SampleAfterValue": "100003",
39        "BriefDescription": "Number of X87 assists due to input value.",
40        "CounterHTOff": "0,1,2,3,4,5,6,7"
41    },
42    {
43        "PublicDescription": "Number of SIMD FP assists due to output values.",
44        "EventCode": "0xCA",
45        "Counter": "0,1,2,3",
46        "UMask": "0x8",
47        "EventName": "FP_ASSIST.SIMD_OUTPUT",
48        "SampleAfterValue": "100003",
49        "BriefDescription": "Number of SIMD FP assists due to Output values",
50        "CounterHTOff": "0,1,2,3,4,5,6,7"
51    },
52    {
53        "PublicDescription": "Number of SIMD FP assists due to input values.",
54        "EventCode": "0xCA",
55        "Counter": "0,1,2,3",
56        "UMask": "0x10",
57        "EventName": "FP_ASSIST.SIMD_INPUT",
58        "SampleAfterValue": "100003",
59        "BriefDescription": "Number of SIMD FP assists due to input values",
60        "CounterHTOff": "0,1,2,3,4,5,6,7"
61    },
62    {
63        "PublicDescription": "Cycles with any input/output SSE* or FP assists.",
64        "EventCode": "0xCA",
65        "Counter": "0,1,2,3",
66        "UMask": "0x1e",
67        "EventName": "FP_ASSIST.ANY",
68        "SampleAfterValue": "100003",
69        "BriefDescription": "Cycles with any input/output SSE or FP assist",
70        "CounterMask": "1",
71        "CounterHTOff": "0,1,2,3"
72    },
73    {
74        "PublicDescription": "Note that a whole rep string only counts AVX_INST.ALL once.",
75        "EventCode": "0xC6",
76        "Counter": "0,1,2,3",
77        "UMask": "0x7",
78        "EventName": "AVX_INSTS.ALL",
79        "SampleAfterValue": "2000003",
80        "BriefDescription": "Approximate counts of AVX & AVX2 256-bit instructions, including non-arithmetic instructions, loads, and stores.  May count non-AVX instructions that employ 256-bit operations, including (but not necessarily limited to) rep string instructions that use 256-bit loads and stores for optimized performance, XSAVE* and XRSTOR*, and operations that transition the x87 FPU data registers between x87 and MMX.",
81        "CounterHTOff": "0,1,2,3,4,5,6,7"
82    }
83]