Dynrec - ARM 64-bit backend \ VOGONS

Dynrec - ARM 64-bit backend

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First post, by M-HT

Posted on 2018-06-09, 12:33

M-HT Offline

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Hi,

I created a backed in the dynrec for 64-bit ARM (ARMv8, little endian).

Detection in configure is included, but in case it doesn't work, following definitions should be set in config.h

1#define C_DYNREC 1
2#define C_TARGETCPU ARMV8LE
3#define C_UNALIGNED_MEMORY 1

Patch for revision 4112 is in the attachment.

Changed files:
src/cpu/core_dynrec.cpp
src/cpu/core_dynrec/Makefile.am
configure.ac

New file:
src/cpu/core_dynrec/risc_armv8le.h

Reply 1 of 6, by bruenor41

Posted on 2018-06-09, 12:51

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Tested last day on 6 different devices and 20+ games. No crashes or unusual behaviors. Most important : No performance regression against 32 bit backend! Good work! 😀

Reply 2 of 6, by krcroft

Posted on 2018-06-09, 14:19

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This excellent work just future-proofed dosbox on aarch64 when it will eventually displace the 32bit arm archs.
Excellent addition!

Reply 3 of 6, by Qbix

Posted on 2018-06-11, 15:39

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Thanks a lot!

Water flows down the stream
How to ask questions the smart way!

Reply 4 of 6, by Qbix

Posted on 2018-06-13, 09:24

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Added it.

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Reply 5 of 6, by M-HT

Posted on 2018-06-14, 19:59

M-HT Offline

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Thanks to more testing by bruenor41 a bug was found. The fix is in the attachment.

Reply 6 of 6, by Qbix

Posted on 2018-06-14, 21:07

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commited in 4119. Thanks!

Water flows down the stream
How to ask questions the smart way!

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