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Summary of floating-point instructions
A summary of the floating-point instructions. Not all of these instructions are available in all floating-point versions.
The following table shows a summary of floating-point instructions that are not available in Advanced SIMD.
Note
Floating-point vector mode is not supported in ARMv8. Use Advanced SIMD instructions for vector floating-point.Table 15-1 Summary of floating-point instructions
| Mnemonic | Brief description |
|---|---|
VABS |
Absolute value |
VADD |
Add |
VCMP, VCMPE |
Compare |
VCVT |
Convert between single-precision and double-precision |
| Convert between floating-point and integer | |
| Convert between floating-point and fixed-point | |
| Convert floating-point to integer with directed rounding modes | |
VCVTB, VCVTT |
Convert between half-precision and single-precision floating-point |
| Convert between half-precision and double-precision | |
VDIV |
Divide |
VFMA, VFMS |
Fused multiply accumulate, Fused multiply subtract |
VFNMA, VFNMS |
Fused multiply accumulate with negation, Fused multiply subtract with negation |
VJCVT |
Javascript Convert to signed fixed-point, rounding toward Zero |
VLDM |
Extension register load multiple |
VLDR |
Extension register load |
VLLDM |
Floating-point Lazy Load Multiple |
VLSTM |
Floating-point Lazy Store Multiple |
VMAXNM, VMINNM |
Maximum, Minimum, consistent with IEEE 754-2008 |
VMLA |
Multiply accumulate |
VMLS |
Multiply subtract |
VMOV |
Insert floating-point immediate in single-precision or double-precision register, or copy one FP register into another FP register of the same width |
VMRS |
Transfer contents from a floating-point system register to an ARM register |
VMSR |
Transfer contents from an ARM register to a floating-point system register |
VMUL |
Multiply |
VNEG |
Negate |
VNMLA |
Negated multiply accumulate |
VNMLS |
Negated multiply subtract |
VNMUL |
Negated multiply |
VPOP |
Extension register load multiple |
VPUSH |
Extension register store multiple |
VRINT |
Round to integer |
VSEL |
Select |
VSQRT |
Square Root |
VSTM |
Extension register store multiple |
VSTR |
Extension register store |
VSUB |
Subtract |