On 7 June 2011 13:15, Paul Gilmartin <[email protected]> wrote: > On Jun 7, 2011, at 10:27, Martin Trübner wrote: > >>>> Which one is correct? >> >> And Johns answer: The PoP is correct. >> >> Of course- the question itself is heresy >> > What would happen if, for example, the hardware designers > invented some new stack manipulations and named them PUSH > and POP?
When the XA architecture came out, the designers added a TRACE instruction, and its addition to ASMH made it impossible to assemble much of VM/HPO. IBM's response at the time was WAD: ASM XF was the only supported assembler. It was easy to work around, but of course PUSH and POP are now so entrenched in the larger assembler world that even the hardware designers would presumably have trouble, uh, pushing that one through. Tony H.
