On Mon, 7 Sep 2020 at 11:05, Schweikhardt, Jens (TSPCE3-TL4) <jens.schweikha...@tesat.de> wrote: > > hello world\n > > > > I’m looking at > https://git.rtems.org/rtems/tree/bsps/riscv/shared/start/start.S which > contains near the end > > > > /* Wait for go issued by the boot processor (mhartid == 0) */ > > LADDR t0, .Lsecondary_processor_go > > > > .Lwait_for_go_again: > > > > lw t1, 0(t0) > > fence iorw, iorw > > bnez t1, .Lwait_for_go_again > > > > mv a0, s1 > > call bsp_start_on_secondary_processor > > > > #if __riscv_xlen == 32 > > .align 2 > > #elif __riscv_xlen == 64 > > .align 3 ß---------- Interesting. > > #endif > > > > .Lsecondary_processor_go: > > > > /* > > * These are ebreak instructions, just in case we end up here > executing > > * code. > > */ > > .word 0x00100073 > > #if __riscv_xlen == 64 > > .word 0x00100073 > > #endif > > > > I’ve never come across a situation where I would want alignment 3 on a 64bit > CPU. > > Is this alignment intended? Is it the base 2 log? > It's 2^3 = 8. We should probably use balign instead to avoid such confusion.
> > > Jens Schweikhardt > > ------------------------------------------------------- > Tesat-Spacecom GmbH & Co. KG > Gerberstraße 49 > D-71522 Backnang > Direct: +49 7191 930 2849 > > "This electronic message may contain highly confidential or privileged > information from Tesat-Spacecom GmbH & Co. KG. Any of the information is only > intended for the recipient and the use by any other party is not authorized. > If you are not the intended recipient, be aware, that any disclosure, > copying, distribution or use of the contents of this message is prohibited. > If you have received this message by error please notify us immediately by > telephone (+49 7191 930 2849) or by e-mail (jens.schweikha...@tesat.de). > Thank you." > > > > > ________________________________ > > Tesat-Spacecom GmbH & Co. KG > Sitz: Backnang; Registergericht: Amtsgericht Stuttgart HRA 270977 > Persoenlich haftender Gesellschafter: Tesat-Spacecom Geschaeftsfuehrungs GmbH; > Sitz: Backnang; Registergericht: Amtsgericht Stuttgart HRB 271658; > Geschaeftsfuehrung: Dr. Marc Steckling, Kerstin Basche, Ralf Zimmermann > > _______________________________________________ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users -- Hesham _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
