2017年11月11日 · I can't understand what cs:ip means. Given that cs means "code segment" and that ip means "instruction pointer" (this is not a general purpose register!) the combination cs:ip represents the location where the CPU is currently fetching instructions to execute.

The processor uses CS segment for all accesses to instructions referenced by instruction pointer (IP) register. CS register cannot be changed directly. The CS register is automatically updated during far jump, far call and far return instructions. and this for IP: Instruction Pointer (IP) is …

2012年9月18日 · How can you forcibly change CS and IP both in assembly language ? ORG directive can be used to change the number of the IP, but how do you change the CS? Basically I wan to implement multi-threading using assembly.

2016年12月21日 · (CS) = 1075H, (IP) = 0300H, before executing the following instruction: CALL 1000H To what address is program control passed? What is the new value of CS and IP after the instruction is executed?

cs is the code segment. cs:ip, which means cs together with ip (instruction pointer) points to the location of the next instruction. So any change to cs or ip, or to both changes the address from where the next instruction will be fetched and executed. Usually you change cs with a jmp (long jump), call (long call), retf, int3, int or iret.

2015年1月27日 · Is this referring to the value of the address (cs*16 + 65a4), or the actual contents of that memory location? The 32-bit word in the memory located at the address (cs*0x10 + 0x65a4) is compared to the value 0 - assuming the CPU runs in "real mode". However something appears very strange to me: You talk about "cs*0x10" which is the address calculation for "real mode". Since the 80286 there is a ...

I would like to store CS (code segment) and IP (instruction pointer) addresses to any of available registers AX, BX, CX or DX. Is it possible somehow to access current CS or IP values?

2018年9月25日 · Changing CS in protected mode is even less common than in real mode (mainstream OSes use a flat memory model), so there was definitely no need to start supporting mov to CS. jmp far works perfectly well, and better in fact because you don't need to ensure that the IP / EIP offset relative to the segment base is the same before/after. As Margaret points out, the low 2 bits of the CS selector is ...

2015年2月22日 · Can you please let me know how to get client IP address in ASP.NET when using MVC 6. Request.ServerVariables ["REMOTE_ADDR"] does not work.

2020年2月24日 · In 8086 microprocessor, suppose CS is FFFFH and IP is FAB0H Then the physical memory address would be computed by multiplying CS by 16 and adding IP. i.e. Add = FFFF0 + FAB0 This sum gives an overf...