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https://opencores.org/ocsvn/zipcpu/zipcpu/trunk
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[/] [zipcpu/] [trunk/] - Rev 138
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Last modification
- Rev 138 2016-05-06 14:54:30 GMT
- Author: dgisselq
- Log message:
- This updates the CPU multiply instruction into a set of three instructions.
MPY is a 32x32-bit multiply instruction, returning the low 32-bit result,
MPYUHI returns the upper 32-bits assuming the result was unsigned and MPYSHI
returns the upper 32-bits assuming the result was signed.