On May 10, 2022, at 11:58:40, David Cole wrote: > > At 5/8/2022 07:14 AM, Jonathan Scott wrote: >> >LFI for IILF, LLGFI for LLILF >> >SLLHH, SLLHL, SLLLH, SRLHH, SRLHL, SRLLH >> > >> >As they are all extended mnemonics, they are not normally used >> >by debugging tools. They are not used by the HLASM disassembler. >> > What product normally uses them?
> When disassembling a BRC 8,--- for example, > z/XDC will actually go to the trouble > to show either JE or JZ > depending upon what the prior instruction is. > How does it decode a BC after AL/SL? What if there are multiple code paths to the BC? (I had one co-worker perverse enough to rely on the CC after a subroutine return. He reset the program Mask before the BR 14 and I had to support it on a 370.) -- gil
