OpenRISC 1000
l.mulu not implemented in OR1200 #147
Closed subhasis256 opened this issue almost 14 years ago
subhasis256 commented almost 14 years ago
l.mulu is not implemented in the OR1200 core. The ALU opcode 0xb reserved for l.mulu in the specification document is actually implemented such that l.mulu rd,ra,rb results in rd <- rb. (Ref. line 198 in or1200_alu.v, line 468 in or1200_defines.v)
julius was assigned almost 14 years ago
julius commented over 13 years ago
All fixed now. ALU opcodes arranged correctly.
Software test implemented:
http://opencores.org/ocsvn/openrisc/openrisc/trunk/orpsocv2/sw/tests/or1200/sim/or1200-mul.c
julius closed this over 13 years ago
© copyright 1999-2018 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.