Is Thumb to ARM mode overhead

Hi all, Consider high priority routines are executing in ARM mode and low priority in Thumb mode. There could be constant switching between ARM and THUMB mode. In this inter-working model is there any...
ARMv7 Vs ARMv8 AArch32 Performance improvement

Hello, I'm using an ARMv8 processor in 32 bit ARMv7 compatibility mode. I would like to know if there is any difference (performance gain) in ARMv8 running in AArch32 mode Vs running the same on an...
GICv3 and aarch32

Hi, I just started to port our secure OS on an armv8 board, with a GIC-v3. The EL1 non secure OS will be the vendor Linux OS, which runs in aarch64. The EL1 secure OS will be our secure OS, which runs...
Difference between thumb machine directives

Hi Experts, What is the key difference between the following directives .thumb .thumb_func .force_thumb .thumb_set What is the exact use case where the above things can to be applied ? Regards, Techguyz...
Is ARMv7-M3 thumb instructions compatible to ARMv7-A thumb?

Hello guys, I am trying to verify some features of ARMv7-M3 in a software simulator platform for ARM. But this simulator only support ARMv7-A ISA. Is ARMv7-M3 instructions compatible to ARMv7-A, especially...