I thought that vintage green (& other) cards had the actual card-punch rows listed, and it turns out that is true: http://weblog.ceicher.com/archives/IBM360greencard.pdf
sas On Wed, Jun 3, 2020 at 4:10 PM Tom Marchant < 0000000a2a8c2020-dmarc-requ...@listserv.ua.edu> wrote: > On Tue, 2 Jun 2020 16:58:03 -0500, Paul Gilmartin <paulgboul...@aim.com> > wrote: > > >I don't understand the table at: > > https://homepage.divms.uiowa.edu/~jones/cards/codes.html > > > >The column labels 12, 11, 10, (blank) appear redundantly on the > >second and fourth quadrants. > > You might find the chart on page 150.3 of > > http://www.bitsavers.org/pdf/ibm/360/princOps/A22-6821-7_360PrincOpsDec67.pdf > to be easier to understand. The prior page describes how to read it. > > -- > Tom Marchant > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
