On 03/12/2014 11:56 AM, Stefan Weil wrote: > Am 12.03.2014 19:05, schrieb Peter Hanzel: >> Thanks. >> >> Now it makes sense. Also google now works and led me to >> https://github.com/bavison/arm-mem. >> And there is SETEND used. >> > > It might be possible to handle that special case in QEMU without > implementing setend: > > That instruction is only used in the implementation of function memcmp. > When TCG detects a setend instruction, it could check whether the > surrounding code has the signature of that memcmp implementation and add > code which calls a memcmp helper function. The setend instruction and > all the following code of memcmp would be handled as if it were a single > special multi byte machine instruction.
Ew. No. It would be easier to just implement setend, even if badly. > PS. Link to previous discussion on setend: > https://lists.gnu.org/archive/html/qemu-trivial/2013-08/msg00086.html > I cc Richard because he was / is involved, too. For my part, the endian-aware load/store opcodes I alluded to last August are now in. r~
