Christophe Leroy <christophe.le...@csgroup.eu> writes: > Le 19/09/2022 à 16:01, Nicholas Piggin a écrit : >> Using a 16-bit constant for this marker allows it to be loaded with >> a single 'li' instruction. On 64-bit this avoids a TOC entry and a >> TOC load that depends on the r2 value that has just been loaded from >> the PACA. >> >> XXX: this probably should be 64-bit change and use 2 instruction >> sequence that 32-bit uses, to avoid false positives. > > Yes would probably be safer ? It is only one instruction more, would > likely be unnoticeable.
Yeah "regshere" has definitely saved me some time over the years starting at memory dumps. I'd settle for 0xffffffff + "regs". cheers
