terminology - "Assembly" vs. "Assembler" - Stack Overflow
Assembly Language. This refers to a specific machine code language such as x86 assembly. Assembler. This is a tool like MASM\FASM used for compiling source code into machine code. Assembler Language. This is the language used by any given assembler.
x86 - How Do You Make An Assembler? - Stack Overflow
The assembler understands only three different assembler codes "mov eax,immed32", "add eax,immed32", "and eax,immed32" and no data nor labels. It will produce a tiny Windows PE executable which outputs eax in hex at the end. Attention: In my case avira free antivirus doesn't like the output. It's a false positive.
What does the 'and' instruction do to the operands in assembly …
2018年12月4日 · This should be described in the documentation for any assembler that has an and instruction. It does a bit-wise Boolean "and" between two operands. In other words, corresponding bits (bit n in each operand) are anded, in the Boolean operation sense, giving bit n of the result. In Boolean logic, 1 and 1 = 1, but 0 and x (anything else) = 0.
While, Do While, For loops in Assembly Language (emu8086)
2015年2月23日 · The same loop in 8086 assembler: xor cx,cx ; cx-register is the counter, set to 0 loop1 nop ; Whatever you wanna do goes here, should not change cx inc cx ; Increment cmp cx,3 ; Compare cx to the limit jle loop1 ; Loop while less or equal That is the loop if you need to access your index (cx).
architecture - What's the relationship between assembly language …
2019年7月26日 · Assembly language is a more human readable view of machine language. Instead of representing the machine language as numbers, the instructions and registers are given names (typically abbreviated words, or mnemonics, eg ld means "load"). Unlike a high level language, assembler is very close to the machine language.
x86 - What does ORG Assembly Instruction do? - Stack Overflow
2020年6月11日 · ORG is used to set the assembler location counter. This may or may not translate to a load address at link time. It can be used to define absolute addresses, e.g. when defining something like interrupt vectors which may need to be at a fixed address, or it can be used to introduce padding or generate a specific alignment for the following code.
if statement - How to write if-else in assembly? - Stack Overflow
2016年11月15日 · There's not only one assembly language. Assembly for ARM obviously must be different from Sparc, MIPS or x86. They all have different instructions for comparison. You must specify the architecture. About else if, the latter if is just another block of code in else. –
Assembly code vs Machine code vs Object code? - Stack Overflow
"Machine code or machine language is a system of instructions and data executed directly by a computer's central processing unit." Basically, assembler code is the language and it is translated to object code (the native code that the CPU runs) by an assembler (analogous to a compiler).
What is the function of the push / pop instructions used on …
2011年1月3日 · Via assembler instructions we can store to stack: CPU registers and also constants. Return addresses for functions or procedures; Functions/procedures in/out variables; Functions/procedures local variables.
How is Assembly used in the modern day (with C/C++ for example)?
2010年10月5日 · "Assembly language" is a kind of misnomer, at least in the way you are using it. Assemblers are less of a language (CS graduates may object) and more of a converter tool which takes textual representation and generates a binary image from it, with a close to 1:1 relationship between text elements (memnonics, labels and numbers) and binary elements.