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nuttx/arch
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Jinliang Li d5db7d1cee libc/arm: optimize crc32/crc32c for arm 
Optimize crc32 standard(poly:0x04C11DB7) and crc32
castagnoli(poly:0x1EDC6F41) with arm crc32 extension instructions.

For example, crc32 standard caculates(lookup crc32 table) 1812 bytes data,
reduced the time from 118 us to 14 us through optimization.

Performance improved ~700%

Signed-off-by: Jinliang Li <lijinliang1@lixiang.com>
2025-04-04 09:51:50 -03:00
..
arm arch/armv8-r: Enable fpu before arm_el_init 2025-04-02 21:07:54 +08:00
arm64 arch/arm64: Increase the timer accuracy with the lower USEC_PER_TICK. 2025-03-26 19:26:37 +08:00
avr Revert "Use small lock to protect usbdev and endpoint in AVR." 2025-02-13 14:15:43 +08:00
ceva arch: set (*running_task)->xcp.regs to NULL when exit from irq/exception 2025-01-22 23:52:17 +08:00
dummy
hc Revert "Use small lock to protect resources related to irq in arch avr, hc, mips and or1k." 2025-02-13 14:15:43 +08:00
mips Revert "Use small lock to protect usbdev and endpoint in arch mips" 2025-02-13 14:15:43 +08:00
misoc arch: up_getusrsp change to inline and implement in irq.h 2025-01-06 23:03:05 +08:00
or1k nuttx/compiler: fix build warning on GCC14 2025-02-18 09:04:54 -05:00
renesas Revert "Use small lock to protect usbdev and endpoint in arch renesas." 2025-02-13 14:15:43 +08:00
risc-v mpfs/mpfs_entrypoints.c: Change atomic_load > atomic_read 2025-04-03 18:34:11 +08:00
sim Revert "Use small lock to protect usbdev and endpoint in sim." 2025-02-13 14:15:43 +08:00
sparc Revert "Use small lock to protect resources related to irq in arch avr, hc, mips and or1k." 2025-02-13 14:15:43 +08:00
tricore [nxstyle] fix Relative files path 2025-02-21 15:36:05 +01:00
x86 x86/Toolchain.defs: Add LLVM target definitions 2025-01-27 02:28:29 +08:00
x86_64 arch/x86_64: Fix strict-prototype warning. 2025-04-02 12:01:46 +08:00
xtensa arch/xtensa/src/esp32: remove espnow 2025-04-04 06:49:50 +08:00
z16 arch: up_getusrsp change to inline and implement in irq.h 2025-01-06 23:03:05 +08:00
z80 arch: up_getusrsp change to inline and implement in irq.h 2025-01-06 23:03:05 +08:00
CMakeLists.txt arch/z80: migrate to SPDX identifier 2024-12-02 17:23:25 +08:00
Kconfig libc/arm: optimize crc32/crc32c for arm 2025-04-04 09:51:50 -03:00