OpenRISC 1000
l.mulu not implemented in OR1200 #147
Closed subhasis256 opened this issue over 13 years ago
subhasis256 commented over 13 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 over 13 years ago
julius commented about 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 about 13 years ago
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