ARM has multiple instruction sets: A32 (32 bit long instructions) and mixed-length T32 (either 32 bit or 16 bit long instructions). T32 was called Thumb before ArmV8. While 16 bit instructions reduce ...

I can't tell how to determine the following: i, 10th bit on the left. imm3, what's the difference for this one with imm8?

I have the following instruction: mov r1, r7 in my assembly code but after looking into disassembly, I've found that actual generated code was adds r1, r7, #0 I checked with ARMv6-M Architecture Refer...

I'm trying to learn the basics of ARM assembly and wrote a fairly simple program to sort an array. I initially assembled it using the armv8-a option and ran the program under qemu while debugging wit...