Assembly help

[Sirrius]

I am taking a course in Assembly right now and would like to understand an issue a little better that deals with the stack. Question: If register ESP contains the decimal value 12345 and the a "PUSH AX" instruction is executed, what value will be left in register ESP? a. 12341 b. 12343 c. 12347 d. 12349 My pick is c. Am I correct in thinkin that the decimal number 12345 is just an address of where the ESP is located on the stack segment and when "PUSH AX" is executed it pushes the ESP down a byte so that it will read 12343? I'm not sure if I'm getting the whole picture or not. Thanks.

[Michael Dunn]

12343. ESP holds the address of the byte currently at the top of the stack. When you PUSH AX, that puts 2 bytes on the stack, so ESP is moved two bytes. Since the stack grows from higher addresses downwards, you subtract 2 from ESP, giving 12343. --Mike-- Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber