armv8r-none-eabihf
- Tier: 3
- Library Support: core and alloc (bare-metal,
#![no_std])
Bare-metal target for CPUs in the Armv8-R architecture family, supporting dual ARM/Thumb mode, with ARM mode as the default.
Processors in this family include the Arm Cortex-R52 and Cortex-R52+.
See arm-none-eabi for information applicable to all
arm-none-eabi targets.
Target maintainers
@chrisnc Rust Embedded Devices Working Group Arm Team
Requirements
The Cortex-R52 family always includes a floating-point unit, so there is no
non-hf version of this target. The floating-point features assumed by this
target are those of the single-precision-only config of the Cortex-R52, which
has 16 double-precision registers, accessible as 32 single-precision registers.
The other variant of Cortex-R52 includes double-precision, 32 double-precision
registers, and Advanced SIMD (Neon).
The manual refers to this as the "Full Advanced SIMD config". To compile code
for this variant, use: -C target-feature=+fp64,+d32,+neon. See the Advanced
SIMD and floating-point support section of the Cortex-R52 Processor
Technical Reference Manual for more details.
Table of supported CPUs for armv8r-none-eabihf
| CPU | FPU | Neon | Target CPU | Target Features |
|---|---|---|---|---|
| Any | SP | No | None | None |
| Cortex-R52 | SP | No | cortex-r52 | -fp64,-d32,-neon |
| Cortex-R52 | DP | No | cortex-r52 | -neon |
| Cortex-R52 | DP | Yes | cortex-r52 | None |
| Cortex-R52+ | SP | No | cortex-r52plus | -fp64,-d32,-neon |
| Cortex-R52+ | DP | No | cortex-r52plus | -neon |
| Cortex-R52+ | DP | Yes | cortex-r52plus | None |