Revision 6825b6c3
| ID | 6825b6c33c5668f0993b03937623d3e891aa540f |
target-xtensa: implement MAC16 option
See ISA, 4.3.7 for the details.
- add ACC and MR special registers;
- implement MAC16 and all inner MAC* opcode groups.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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