minabeoki opened a new pull request #5678: URL: https://github.com/apache/incubator-nuttx/pull/5678
## Summary - imx6 fpu is vfpv3 - imx6 fpu has 32 registers (CONFIG_ARM_HAVE_FPU_D32=y) - With this fix, "getprime" now succeeds by gcc-10.3.1. In the following page, there is "VFPv3" in the block diagram. https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-6-processors/i-mx-6quad-processors-high-performance-3d-graphics-hd-video-arm-cortex-a9-core:i.MX6Q The following statements can be found in the data sheet. > NEON register file with 32x64-bit general-purpose registers ## Impact - imx6 ## Testing - getprime on sabre-6quad:knsh (QEMU) ``` % arm-none-eabi-gcc -v gcc version 10.3.1 20210824 (release) (GNU Arm Embedded Toolchain 10.3-2021.10) % qemu-system-arm -semihosting -M sabrelite -m 1024 -smp 4 -nographic -kernel ./nuttx ABDGHIJKNOPQ NuttShell (NSH) NuttX-10.2.0 nsh> /system/bin/hello Hello, World!! nsh> /system/bin/getprime Set thread priority to 10 Set thread policy to SCHED_RR Start thread #0 thread #0 started, looking for primes < 10000, doing 10 run(s) thread #0 finished, found 1230 primes, last one was 9973 Done /system/bin/getprime took 1310 msec nsh> ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
