Reichman Joseph wrote: >The doc says bytes 0 - 3 is cylinders bytes 0 -3 is FFF00000 and bytes 4 - 7 >000FF000 is tracks per cyl ? am I misreading misunderstanding the >documentation
What docs? Could you be kind to give us the URL of that source of above info and docs? > I was looking for the capability on a dasd device > DEVTYPE (R6),(AREA,L'AREA),INFOLIST=ILIST2 > ILIST2 DEVTYPE INFO=DASD > AREA DS XL16 Hmmm, interesting application of that useful macro. I must try out this little gem next week on my z/OS v2.1 sandbox when I'm returning to my bread and butter work... ;-) > This was the data returned in area R15 = 0 > FFF00000 000FF000 00000100 08000000 On what z/OS level were you trying to try out that Assembler snippet? How did you obtained the contents of that R15? Via a dump or a MVC or something else? >Mike Schwab wrote: >> FFF00000 000FF000 00000100 08000000 >x'FFF0' would be 65520 cylinders. x'000F' would be 15 tracks per cylinder. >Reasonable for a 3390-54. Indeed. Groete / Greetings Elardus Engelbrecht ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
