Is assembly code and machine code specified by the architecture? I know that how you implement the architecutre is uo to you(it is up the microarchitecture can implement the architecture). But I don't understand if the assembly or machine code is specified by the architecture?
Is machine code and assembly code part of the architecture?
134 Views Asked by user394334 At
1
There are 1 best solutions below
Related Questions in ASSEMBLY
- Is there some way to use printf to print a horizontal list of decrementing hex digits in NASM assembly on Linux
- How to call a C language function from x86 assembly code?
- Binary Bomb Phase 2 - Decoding Assembly
- AVR Assembly Clock Cycle
- Understanding the differences between mov and lea instructions in x86 assembly
- ARM Assembly code is not executing in Vitis IDE
- Which version of ARM does the M1 chip run on?
- Why would %rbp not be equal to the value of %rsp, which is 0x28?
- Move immediate 8-bit value into RSI, RDI, RSP or RBP
- Unable to run get .exe file from assembly NASM
- DOSbox automatically freezes and crashes without any prompt warnings
- Load function written in amd64 assembly into memory and call it
- link.exe unresolved external symbol _mainCRTStartup
- x86 Wrote a boot loader that prints a message to the screen but the characters are completely different to what I expected
- running an imf file using dosbox in parallel to a game
Related Questions in CPU-ARCHITECTURE
- What is causing the store latency in this program?
- what's the difference between "nn layout" and "nt layout"
- Will a processor with such a defect work?
- How do i find number of Cycles of a processor?
- Why does LLVM-MCA measure an execution stall?
- Can out-of-order execution of CPU affect the order of new operator in C++?
- running SPEC in gem5 using the SimPoint methodology
- Why don't x86-64 (or other architectures) implement division by 10?
- warn: MOVNTDQ: Ignoring non-temporal hint, modeling as cacheable!, While simulating x86 with spec2006 benchamrks I am getting stuck in warn message
- arithmetic intensity of zgemv versus dgemv/sgemv?
- What is the microcode scoreboard?
- Why don't x86/ARM CPU just stop speculation for indirect branches when hardware prediction is not available?
- Question about the behaviour of registers
- How to increase throughput of random memory reads/writes on multi-GB buffers?
- RISVC Single Cycle Processor Data Path and Testbench
Related Questions in MACHINE-CODE
- C++ optimization comparing inline classes and functions doesn't seem good enough
- CMP ESI, -20. This part of code makes no sense to me. How does this magic work?
- What version of ARM does the given machine code correspond to?
- Not seeing my input(NOPs) inside the stack
- Not getting the expected output when running a shell code in a buffer overflow
- How to test J and B type RISCV instructions with random operands jumping to random memory locations?
- Not getting the same result from running a python script to generate a certain input string as i get when typing it myself
- Buffer overflow attack not going as intended
- EIP doesn't get overwritten when perfoming a buffer overflow attack
- How to compile hexadecimally encoded instructions into an ELF for RISCV simulation?
- The value in CS is 1FD0h what is the location of next instruction from 00000h if Instruction pointer is 3CD4h
- Is there a way to make GDB disassemble all memory in a specific range, without regard for instruction boundaries?
- Does exe file after linking consist of machine language only?
- How can I call a Windows .DLL (API) function from machine code?
- GNU Assembler: Set fixed displacement size
Related Questions in INSTRUCTION-SET
- Set value of register to 64-bit integer in RISC-V
- ARMv7A instruction
- Find common minimum CPU features to expect when targeting a certain macOS deployment target
- Why can't we do arithmetic on an operand in x86 asm?
- Arm cortex m0 LDR instruction
- Why is the "mov" with complex addressing faster than the corresponding "lea"?
- Jump (jmp) in microcode with fetch, decode, execute and writeback
- How to decide minimum pmp region for an architecture?
- Does RISCV SBI refers a hardware implementation or a software standard?
- In 6502 assembler, trying to output integers after log statement
- How to compile for riscv zicond extension in gcc?
- Why there is different register address for sstatus an mstatus although they are different view of same register?
- How data dependency handled at cpu instructions pipeline parallelism
- How does RESW in SIC machine works
- VM detection mechanisms for ARM
Related Questions in MICRO-ARCHITECTURE
- What is causing the store latency in this program?
- How to load a microapp dynamically in angular 16
- How instructions are fetched into modern CPUs(2023)?
- Are any instructions affected by IA32_UARCH_MISC_CTL[DOITM] in existing CPUs?
- Verilator does not seem to recognize casez statement, any idea of how to solve this?
- intel alderlake performance degradation after spin wait
- Is port blocked when data is fetching from cache or memory in CPU microarchitecture?
- Is machine code and assembly code part of the architecture?
- How does the Program read 32 bit from the memory in a single clock cycle?
- Does storing false bool values cost less electrical energy?
- Memory loads experience different latency on the same core
- Do memory instructions pass through the load-store queue and issue queue in the microarchitecture
- Does L1 cache accept new incoming requests while its Line Fill Buffers (LFBs) are fully exhausted?
- vtune memory-access report showing incorrect output
- how do conditional branches and instructions which update conditional flags operate in an out of order arm architecture?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Machine code is decoded by the CPU; its format, and the behaviour of each instruction, are part of the instruction-set architecture implemented by the CPU.
Assembly source code is arbitrary, only dealt with by software (assemblers and disassemblers). As @old_timer likes to say, assembly is defined by the software tool, not the CPu.
Often the vendor will define an asm syntax so they can use it in their manual when documenting how the ISA works, like register names and instruction names. So it gets used in the ISA documentation, but primarily as a way to describe it to humans. (Or also as a specification for an assembly language recommended by the vendor.)
For many real-world ISAs, nobody felt the need to invent a different text syntax for the same machine-code format. (Except maybe Go and the Plan 9 ecosystem it's derived from.)
But some ISAs, most notoriously x86, have many different text syntaxes. x86 machine code has some redundancy in how the same instruction can be encoded, and some syntaxes allow overrides to specify the details. But that wasn't the reason for people inventing different syntaxes.
There are multiple flavours of Intel syntax (https://stackoverflow.com/tags/intel-syntax/info), the syntax used in Intel and AMD's manuals. MASM/TASM are very similar, vs. NASM/FASM having some different interpretations. And that's just for the instruction syntax; directives also differ between assemblers that mostly agree on the syntax for instructions, operands, and addressing modes.
AT&T was designed to look more like PDP-11 syntax, with destination operand on the right, and with
%decorations on register names to make parsing simpler. https://stackoverflow.com/tags/att/info