Windows 7 task scheduler keeps returning operational code 2
The question and the top answer are confusing the notion of a "return code", which shows up in Task Scheduler as the "Last Run Result" with the "OpCode"/"Operational Code" that shows up in the …
How to tell the length of an x86 instruction? - Stack Overflow
Terminology: "opcode" is the part of the instruction that selects the operation, not including operands, or non-mandatory prefixes that modify the operation (e.g. operand-size). Using "opcode" to refer to the …
How do I decode a machine instruction to assembly in LEGv8?
I am having trouble figuring out how a LEGv8 machine instruction is decoded. Assume the following binary: 1000 1011 0000 1111 0000 0000 0001 0011 I have the following chart that is supposed to he...
assembly - JMP to absolute address (op codes) - Stack Overflow
Jumps are usually relative. There's an opcode EA for a jump to an absolute far address, and opcodes for jumps to an indirect address (where the operand specifies the memory location wich contains the …
How encode a relative short jmp in x86 - Stack Overflow
Suppose I want to do a short jump using the EB opcode, jmp rel8 short jump Intel manual entry for it: EB CB or JMP rel8 "Jump short, RIP = RIP + 8-bit displacement sign extended to 64-bits&...
assembly - x86 function call types - Stack Overflow
The types of CALL instruction are: Near, relative (opcode E8) (call func) Far, absolute (opcode 9A) (call 0x12:0x12345678) Near, absolute, indirect (opcode FF /2) (call [edi]) Far, absolute, indirect (opcode …
c - Is syscall an instruction on x86_64? - Stack Overflow
syscall is an instruction in x86-64, and is used as part of the ABI for making system calls. (The 32-bit ABI uses int 80h or sysenter, and is also available in 64-bit mode, but using the 32-bit ABI from 64-bit …
riscv - RISC-V ADDI instruction - Stack Overflow
Since the mv alias is resolved by the assembler mv doesn't have its own opcode and thus isn't a real instruction. Hence it's called a pseudo-instruction. Using the mv pseudo-instruction arguably …
How to use PHP OPCache? - Stack Overflow
Because OPcache is designed to replace the APC module, it is not possible to run them in parallel in PHP. This is fine for caching PHP opcode as neither affects how you write code. However it means …
Decoding and matching Chip 8 opcodes in C/C++ - Stack Overflow
I'm using this opcode table and I'm basically lost in regards to matching the hex opcodes I read to the opcode identifiers in that table. Also, I realize that many of the opcodes I'm reading also contain …