NVIDIA ISA Viewer

I2F

Integer To Floating Point Conversion

3 variants on SM100 (B200)

I2F

R,R

distilled: @P0 I2F.???0.U8 R0, R0 ;

key: I2F_R_R

0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	1	1	0	0	0	0	0	1	1	0	0	pred				operand 0								0	0	0	0	0	0	0	0	operand 1								0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	modi		0	0
0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	0	0	0	0	0	0	0	0	0	modi 1	modi 2			modi 3		0	0	0	0	modi 4		0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	stall				y	r-bar			w-bar			b-mask						reuse				0	0

Modifier Group 1

Binary	Value
0	U8
1	S8

Modifier Group 2

Binary	Value
000	???0
001	F16
010	(default)
011	???3
100	BF16
101	???5
110	???6
111	???7

Modifier Group 3

Binary	Value
00	(default)
01	RM
10	RP
11	RZ

Modifier Group 4

Binary	Value
00	U8
01	U16
10	U32

Operand 1 Modifiers

Binary	Value
00	(default)
01	B1
10	B2
11	B3

I2F

R,UR

distilled: @P0 I2F.???0.U8 R0, UR0 ;

key: I2F_R_UR

0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	1	1	0	0	0	0	0	1	0	1	1	pred				operand 0								0	0	0	0	0	0	0	0	operand 1								0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	modi		0	0
0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	0	0	0	0	0	0	0	0	0	modi 1	modi 2			modi 3		0	0	0	0	modi 4		0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	stall				y	r-bar			w-bar			b-mask						reuse				0	0

Modifier Group 1

Binary	Value
0	U8
1	S8

Modifier Group 2

Binary	Value
000	???0
001	F16
010	(default)
011	???3
100	BF16
101	???5
110	???6
111	???7

Modifier Group 3

Binary	Value
00	(default)
01	RM
10	RP
11	RZ

Modifier Group 4

Binary	Value
00	U8
01	U16
10	U32

Operand 1 Modifiers

Binary	Value
00	(default)
01	B1
10	B2
11	B3

I2F.???0

R,I

distilled: @P0 I2F.???0.U32 R0, 0x0 ;

key: I2F_R_I

0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	1	1	0	0	0	0	0	1	0	0	1	pred				operand 0								0	0	0	0	0	0	0	0	operand 1
0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7	0	1	2	3	4	5	6	7
0	0	0	0	0	0	0	0	0	0	modi 1				modi 2		0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	stall				y	r-bar			w-bar			b-mask						reuse				0	0

Modifier Group 1

Binary	Value
0000	U32
0001	(default)
0010	F16.U32
0011	F16
0100	U32
0101	(default)
0110	???3.U32
0111	???3
1000	BF16.U32
1001	BF16
1010	???5.U32
1011	???5
1100	???6.U32
1101	???6
1110	???7.U32
1111	???7

Modifier Group 2

Binary	Value
00	(default)
01	RM
10	RP
11	RZ