diff options
Diffstat (limited to 'cpu-supplement')
| -rw-r--r-- | cpu-supplement/arm.rst | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/cpu-supplement/arm.rst b/cpu-supplement/arm.rst index ac4681b..63aa532 100644 --- a/cpu-supplement/arm.rst +++ b/cpu-supplement/arm.rst @@ -77,11 +77,15 @@ The following multilibs are available: #. ``thumb/armv7-r/vfpv3-d16/hard``: ARMv7-R, Thumb-2 instruction set with hard-float ABI VFP-D16 support -#. ``thumb/armv7-m``: ARMv7-M, Thumb-2 instruction set with hardware - integer division (SDIV/UDIV) +#. ``thumb/cortex-m3``: Cortex-M3, Thumb-2 instruction set with hardware + integer division (SDIV/UDIV) and a fix for Cortex-M3 Errata 602117. -#. ``thumb/armv7-m/fpv4-sp-d16``: ARMv7-M, Thumb-2 instruction set with - hardware integer division (SDIV/UDIV) and hard-float ABI FPv4-SP support +#. ``thumb/cortex-m4``: Cortex-M4, Thumb-2 instruction set with hardware + integer division (SDIV/UDIV) and DSP instructions + +#. ``thumb/cortex-m4/fpv4-sp-d16``: Cortex-M4, Thumb-2 instruction set with + hardware integer division (SDIV/UDIV), DSP instructions and hard-float ABI + FPv4-SP support #. ``thumb/cortex-m7/fpv5-d16``: Cortex-M7, Thumb-2 instruction set with hard-float ABI and FPv5-D16 support @@ -91,21 +95,13 @@ The following multilibs are available: #. ``eb/thumb/armv7-r/vfpv3-d16/hard``: ARMv7-R, Big-endian Thumb-2 instruction set with hard-float ABI VFP-D16 support -Multilib 1., 2. and 3. support the standard ARM7TDMI and ARM926EJ-S processors. +Multilib 1., 2. and 3. support the legacy ARM7TDMI and ARM926EJ-S processors. Multilib 4. supports the Cortex-M0 and Cortex-M1 cores. -Multilib 9. supports the Cortex-M3 and Cortex-M4 cores, which have a special -hardware integer division instruction (this is not present in the A and R -profiles). - -Multilib 10. supports the Cortex-M4 cores with a floating point unit. - -Multilib 11. supports the Cortex-M7 cores with a floating point unit. - Multilib 5. and 6. support the Cortex-A processors. -Multilib 7., 8., 12. and 13. support the Cortex-R processors. Here also +Multilib 7., 8., 13. and 14. support the Cortex-R processors. Here also big-endian variants are available. Use for example the following GCC options: |