Martin, Let me try again.
Paraphrased only a little, see page 7-337, the current z/Architecture PROP says: o RC = 0, all function bytes [examined] are zero, o RC = 1, non-zero function byte found, input IS NOT exhausted, o RC = 2, non-zero function byte found, input IS exhausted. For both RC=1 and RC=2 a non-zero function byte has been found. The difference is that for RC=1 the input string has not been exhausted, i.e., execution of the TRT[R]E must [usually] be repeated after the non-zero function byte found has been processed, while for RC=2 only the non-zero function byte need be processed, EOS has been reached. These conventions slightly simplify the coding. You need only |VERIFY TRTE R10, | JZ DONE --non-zero | <handle found case here> | <branch back to VERIFY for RC=1 case only> |DONE . . . Is this now clear? If not, I can try again in your choice of Swiss languages (excluding Romans[c]h). I do not, however, think your problem is a linguistic one. Your English has always struck me as more than adequate. John Gilmore, Ashland, MA 01721 - USA
