vrintm

Vector Round Floating-Point (Minus Infinity)

VRINTM<c>.F32 <Sd>, <Sm>

Rounds float towards Minus Infinity (Floor).

Pseudocode Operation

Sd ← RoundTowardMinusInfinity(Sm)

Example

VRINTM.F32 s0, s2

Encoding

Binary Layout

111111101

31:23

D

22

111

21:19

0

18

11

17:16

Vd

15:12

10

11:10

10

9:8

0

7

1

6

M

5

0

4

Vm

3:0

 

Format VFP Unary

Opcode 0xFEBB0A40

Extension VFP (Float)

Operands

• Sd
  Destination 32-bit floating-point register
• Sm
  Second source 32-bit floating-point register

Related

Other forms of vrintm

• vrintm Vector Round Floating-Point Double (Minus…

More in VFP (Float)

Reference

View in Arm A64 ISA Reference ↗ Arm AArch32 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0xF3B20680	VRINTM{<q>}.<dt> <Dd>, <Dm>		A32		111100111 | D | 11 | size | 10 | Vd | 0 | 1 | 101 | 0 | M | 0 | Vm
0xF3B206C0	VRINTM{<q>}.<dt> <Qd>, <Qm>		A32		111100111 | D | 11 | size | 10 | Vd | 0 | 1 | 101 | 1 | M | 0 | Vm
0xFFB20680	VRINTM{<q>}.<dt> <Dd>, <Dm>		T32		111111111 | D | 11 | size | 10 | Vd | 0 | 1 | 101 | 0 | M | 0 | Vm
0xFFB206C0	VRINTM{<q>}.<dt> <Qd>, <Qm>		T32		111111111 | D | 11 | size | 10 | Vd | 0 | 1 | 101 | 1 | M | 0 | Vm
0xFEBB0940	VRINTM{<q>}.F16 <Sd>, <Sm>		A32		111111101 | D | 111 | 0 | 11 | Vd | 10 | 01 | 0 | 1 | M | 0 | Vm
0xFEBB0A40	VRINTM{<q>}.F32 <Sd>, <Sm>		A32		111111101 | D | 111 | 0 | 11 | Vd | 10 | 10 | 0 | 1 | M | 0 | Vm
0xFEBB0B40	VRINTM{<q>}.F64 <Dd>, <Dm>		A32		111111101 | D | 111 | 0 | 11 | Vd | 10 | 11 | 0 | 1 | M | 0 | Vm

Description

Round floating-point to integer towards -Infinity rounds a floating-point value to an integral floating-point value of the same size using the Round towards -Infinity rounding mode. A zero input gives a zero result with the same sign, an infinite input gives an infinite result with the same sign, and a NaN is propagated as for normal arithmetic.

Operation

EncodingSpecificOperations(); CheckVFPEnabled(TRUE);
case esize of
    when 16
        S[d] = Zeros(16) : FPRoundInt(S[m]<15:0>, FPSCR[], rounding, exact);
    when 32
        S[d] = FPRoundInt(S[m], FPSCR[], rounding, exact);
    when 64
        D[d] = FPRoundInt(D[m], FPSCR[], rounding, exact);