On Wed, 24 Feb 2010 16:29:52 -0500, Shmuel Metz (Seymour J.) wrote: > >then BAR and MYVAR will have different contents. In really old PL/I >compilers IBM put the Q-cons in the offset fields of instructions, >limiting the PRV to 4096 bytes. > That's why there's a 12-bit (IIRC) RLD!
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