URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [rtl/] [core/] - Rev 138

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.

Path
/zipcpu/trunk/rtl/core/cpuops.v
/zipcpu/trunk/rtl/core/idecode.v
/zipcpu/trunk/rtl/cpudefs.v
/zipcpu/trunk/sw/binutils-2.25.patch
/zipcpu/trunk/sw/gcc-zippatch.patch