On 20 December 2011 15:53, Paul Gilmartin <[email protected]> wrote:
> Didn't I hear that IBM had to arbitrate a collision between one of > its own macro names and one of its own opcodes lately? I don't know about lately, but 25 or so years ago they broke use of the then state-of-the-art ASMH on VM/SP by adding a TRACE instruction to the XA architecture, when VM already had a widely used TRACE macro. IBM's response to complaints was to point out that Asm XF was the only supported assembler for building VM, and reject the APAR. Tony H.
