I understand haven’t program that much in amode 64 Thanks
Joe Reichman 170-10 73 rd ave Fresh meadows NY 11366 > On Nov 22, 2019, at 5:50 AM, Jonathan Scott <jonathan_sc...@vnet.ibm.com> > wrote: > > Ref: Your note of Thu, 21 Nov 2019 22:26:07 -0500 > > BASR doesn't switch AMODE. If you want to switch AMODE you need > to use BASSM (and return using BSM, as the return address will > be odd for AMODE 64). > > If you BASR staying in AMODE 64, the high word of the register > needs to be zero. If you're not clearing it, the effect will > depend on what the caller had in it, which may well be different > in the TEST environment. > >> I have a amode 64 rmode 31 program I would like to do I/O So I have to have >> the DCB below 16mb So I have LOAD a module amode 64 rmode 24 >> >> After loading I turn the 1 bit to the right off now I have a clean half >> address when I BASR to it bombs and the PSW has the one bit on >> >> A funny thing under TEST making a breaking point at the basr it doesn't >> happen > > Jonathan Scott, HLASM > IBM UK, Hursley
