You have a 64-bit number 0xCCCCCCCCAAAAAAAA. Write an assembly program to implement 64-bit Logic Shift Right. Shift this 64-bit number right by 4 [closed] solved You have a 64-bit number 0xCCCCCCCCAAAAAAAA. Write an assembly program to implement 64-bit Logic Shift Right. Shift this 64-bit number right by 4 [closed]
Nothing trivial and time consuming. You need to study e.MMC standard from JEDEC to understand how host and card side works. You can get the documents free from their site for a registration. You then also need to understand how the connection is made to that eMMC host interface. That would be probably lead you … Read more
No, the “high-end” feature that matters on those ARM CPUs is out-of-order execution, with branch-prediction + speculative execution. In-order CPUs with NEON (like Cortex A-53) aren’t on the list of affected CPUs, because Spectre depends on speculative execution. Spectre primes the branch predictors so an indirect branch in privileged code is mispredicted to go somewhere … Read more
Intrinsic functions Are functions which the compiler implements directly when possible instead of calling an actual function in a library. For example they can be used for optimization or to reach specific hardware functionality. For ARM their exist an intrinsic function (and many others) called “__nop()” which inserts a single NOP (No Operation) instruction. See … Read more
As mentioned by the commenters LDR r3,#0xaabbccdd is not a valid instruction. Immediates in ARM opcodes are on the form ZeroExtend(imm8) ROR (imm4*2), which would allow you to represent e.g. 0xaa000000, 0x00bb0000 and even 0xd000000d – but not e.g. 0xaabb0000 or 0xaabbccdd. Assemblers typically provide a pseudo-instruction for loading 32-bit immediates, e.g. in GAS you … Read more
No, its no. The ARM instruction set may be more limited compared to the x86 instruction set but this has nothing to do with the architecture of the processors. The ARM instruction set is not a subset of x86 instructions. They are encoded differently and the processor executes them in a different way. The registers … Read more
Just download and install the free and prebuilt Codesourcery/Mentor Arm cross-compiler and toolchain from here. 2 solved How to compile the cross-compiler arm-linux-eabi-gcc? [closed]
sprintf will ony fail during an interrupt if it is called again during that interrupt (assuming it uses global variables that are re-used; would it use only stack variables, then it is re-entrant). So if your interrupt handler is calling sprintf and during that call a new, same or higher priority interrupt occurs then it … Read more
For what it’s worth, before installing Homebrew you will need to install Rosetta2 emulator for the new ARM silicon (M1 chip). I just installed Rosetta2 via terminal using: /usr/sbin/softwareupdate –install-rosetta –agree-to-license This will install rosetta2 with no extra button clicks. After installing Rosetta2 above you can then use the Homebrew cmd and install Homebrew for … Read more