| A | B |
|---|---|
| Version | ARMv6, ARMv5, ARMv4T, ARMv3, ARMv2 |
| Encoding | 32-bit, except Thumb extension uses mixed 16- and 32-bit instructions. |
| Endianness | Bi (little as default) in ARMv3 and above |
| Extensions | Thumb, Jazelle |
| Registers | … |
| General-purpose | 15 × 32-bit integer registers, including R14 (link register), but not R15 (PC, 26-bit addressing in older) |
| Floating-point |
ARM 32-bit (legacy)
(echo:: @ ᯤ)