Find all needed information about Arm7 Floating Point Support. Below you can see links where you can find everything you want to know about Arm7 Floating Point Support.
https://developer.arm.com/docs/100073/0608/floating-point-support/about-floating-point-support
About floating-point support. The ARM ® floating-point environment is an implementation of the IEEE 754-1985 standard for binary floating-point arithmetic. Note In ARMv8, floating-point hardware is integral to the architecture. Software floating-point is supported for AArch32 state, but is not supported for AArch64 state.
https://developer.arm.com/docs/dui0475/k/floating-point-support/about-floating-point-support
ARM Compiler ARM C and C++ Libraries and Floating-Point Support User Guide Version 5.05. Preface; The ARM C and C++ Libraries; The ARM C Micro-library; Floating-point Support. About floating-point support; The software floating-point library, fplib; Calling fplib routines; fplib arithmetic on numbers in a particular format
https://developer.arm.com/architectures/instruction-sets/floating-point
The Arm architecture provides high-performance and high-efficiency hardware support for floating-point operations in half-, single-, and double-precision arithmetic. It is fully IEEE-754 compliant with full software library support. This page describes floating-support relative to Cortex-A and Cortex-R processors. For information relative to Cortex-M, please refer to our DSP for Cortex-M page.
http://www.keil.com/support/man/docs/armlib/
Libraries and Floating Point Support Guide. Preface The ARM C and C++ Libraries The ARM C Micro-library Floating-point Support The C and C++ Library Functions reference Floating-point Support Functions Reference
https://stackoverflow.com/questions/10585208/gnu-arm-toolchain-with-hardware-floating-point-support
I just wrote an article about using ARM's free GCC toolchain (GNU Tools for ARM Embedded Processors) and STLINK on Linux/Ubuntu to write/program/debug code for an STM32F4 Discovery Board (the F4 is a Cortex M4) - that may help you, the compiler does have hardware floating point support and I'm using it in my examples...
https://developer.arm.com/docs/dui0646/latest/cortex-m7-peripherals/floating-point-unit
This section describes the optional Floating-Point Unit (FPU) in a Cortex-M7 device. The FPU implements the FPv5 floating-point extensions. Depending on your implementation, the FPU fully supports either single-precision, or double-precision, or both for add, subtract, multiply, divide, multiply and accumulate, and square root operations.
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