On Wed, 20 Jul 2016 18:20:19 -0400, Don Poitras wrote: >I needed to know what bit represents a BAKR >call vs. a PC. This is all I could find: > >--- >Bytes 288-295 contain the entry >descriptor. EXTRACT STACKED STATE sets the >condition code to indicate whether the entry-type >code in the entry descriptor specifies a branch state >entry or a program-call state entry.
In the -10 edition of the POO, it is on page 5-80, under the heading "Entry Descriptors". <quote> Entry Type (ET): Bits 1-7 are a code that specifies the type of the linkage-stack entry containing the entry descriptor. The assigned codes are: Code (in Binary) Entry Type 0001001 Header entry 0001010 Trailer entry 0001100 Branch State entry 0001101 Program-call state entry Codes 0000000-0001000, 0001011, and 0001110 through 0111111 binary are reserved for possible future assignments. Codes 1000000 through 1111111 binary are available for use by programming. </quote> Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
