OpcodeConversion

Note: round brackets, instead of square brackets, are used to represent an optional component. This is to avoid confusion with memory operands which are surrounded by square brackets.

Also, immea and composite operand may be mentioned in the parts below. Please visit these two links for more information regarding their meaning.

Conversion Instructions

F2I

Instruction usage:

F2I(.FTZ)(.dtype)(.stype)(.rnd) reg0, (-)composite operand;

Template opcode

0010 000100 1110 000000 010010 0000000000000000000000 0000000000 101000
        mod        reg0   mod2                  immea       mod3

mod 1	meaning
0	default
1	-composite operand

mod 2	.dtype
0	.Uxx
1	.Sxx

mod 3	meaning
0	default
1

mod2 1:2	.stype
10	.F16
01	default(.F32)
11	.F64

mod2 4:5	.dtype
10	.x16
01	.x32
11	.x64

mod3 2	meaning
0	default
1	.FTZ

mod3 7:8	.rnd
10	.FLOOR
01	.CEIL
11	.TRUNC

---

F2F

Instruciton usage:

F2F(.FTZ).dtype.stype(.rop)(.SAT) reg0, (-/|)composite operand(|);

Template opcode

0010 000000 1110 000000 010010 0000000000000000000000 0000000000 001000
        mod        reg0   mod2                  immea       mod3

mod 1	meaning
0	default
1	-composte operand

mod 2 is effective only when both dtype and stype are F32

mod 2	meaning
0	.PASS
1	.ROUND

mod 3	meaning
0	default
1

mod 4	meaning
0	default
1	.SAT

mod 5	meaning
0	default
1	.S

mod2 1:2	.stype
10	.F16
01	.F32
11	.F64

mod2 4:5	.dtype
00	default
10	.F16
01	.F32
11	.F64

mod3 2	meaning
0	default
1	.FTZ

mod3 7:8	.rnd
00	default
10	.RM
01	.RP
11	.RZ

---

I2F

Instruction usage:

I2F(.dtype)(.stype)(.rnd) reg0, composite operand;

Template opcode

0010 000001 1110 000000 010010 0000000000000000000000 0000000000 011000
        mod        reg0   mod2                  immea       mod3

mod 0	.stype
0	.Uxx
1	.Sxx

mod 1	meaning
0	default
1	-composite operand

mod 3	meaning
0	default
1

mod2 1:2	.stype
10	.x16
01	.x32(default)
11	.x64

mod2 4:5	.dtype
10	.F16
01	default(.F32)
11	.F64

mod3 7:8	.rnd
10	.RM
01	.RP
11	.RZ

---

I2I

Instruction usage:

I2I.dtype.stype(.SAT) reg0, (-/|)composite operand(|);

Template opcode

0010 000000 1110 000000 010010 0000000000000000000000 0000000000 111000
        mod        reg0   mod2                  immea       mod3

mod 0	.stype
0	.Uxx
1	.Sxx

mod 1	meaning
0	default
1	-composite operand

mod 2	.dtype
0	.Uxx
1	.Sxx

mod 3	meaning
0	default
1

mod 4	meaning
0	default
1	.SAT

mod2 1:2	.stype
00	.X8
10	.X16
01	.X32
11	.X64

mod2 4:5	.dtype
00	.X8
10	.X16
01	.X32
11	.X64

mod3 1:2	meaning
00	default
10	.B1 on composite operand
01	.B2 on composite operand
11	.B3 on composite operand

mod3 9	meaning
0	default
1	.CC on reg0