Calling opcode string discussion

[Charles Pegge]

To push all the registers, except for the stack pointer itself esp, add these bytes to the start of your string:

in hexadecimal:
9c 50 51 52 53 55 56 57

Then add this to the end of your string to pop them all back again

5f 5e 5d 5b 5a 59 58 9d

This should be safe for all integer arithmetic, and possibly floats. You might be able to do Windows API calls as well.