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| author | Pavel Pisa <pisa@cmp.felk.cvut.cz> | 2019-01-31 11:02:03 +0100 |
|---|---|---|
| committer | Pavel Pisa <pisa@cmp.felk.cvut.cz> | 2019-01-31 11:02:03 +0100 |
| commit | eab6cf4fc5720b330ba89c38e9e6119a8a6fabfa (patch) | |
| tree | e706c645c9ee51b1a9fcbf15fee6bda870d1cd54 /qtmips_machine/core.h | |
| parent | 6a6bd48da1f09be7dc7c53f13393b07889eea364 (diff) | |
| download | qtmips-eab6cf4fc5720b330ba89c38e9e6119a8a6fabfa.tar.gz qtmips-eab6cf4fc5720b330ba89c38e9e6119a8a6fabfa.tar.bz2 qtmips-eab6cf4fc5720b330ba89c38e9e6119a8a6fabfa.zip | |
Initial support for JAL.
The JR, BEQ, BNE are most probably incorrect still.
There is missing forwarding for pipelined execution.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Diffstat (limited to 'qtmips_machine/core.h')
| -rw-r--r-- | qtmips_machine/core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/qtmips_machine/core.h b/qtmips_machine/core.h index 625fe29..66eb1e6 100644 --- a/qtmips_machine/core.h +++ b/qtmips_machine/core.h @@ -49,6 +49,7 @@ signals: void decode_rs_num_value(std::uint32_t); void decode_rt_num_value(std::uint32_t); void decode_rd_num_value(std::uint32_t); + void decode_regd31_value(std::uint32_t); void execute_alu_value(std::uint32_t); void execute_reg1_value(std::uint32_t); void execute_reg2_value(std::uint32_t); @@ -83,6 +84,7 @@ protected: struct dtFetch { Instruction inst; // Loaded instruction + uint32_t inst_addr; // Address of instruction }; struct dtDecode { Instruction inst; @@ -90,6 +92,7 @@ protected: bool memwrite; // If memory should write input bool alusrc; // If second value to alu is immediate value (rt used otherwise) bool regd; // If rd is used (otherwise rt is used for write target) + bool regd31; // Use R31 as destionation for JAL bool regwrite; // If output should be written back to register (which one depends on regd) enum AluOp aluop; // Decoded ALU operation enum MemoryAccess::AccessControl memctl; // Decoded memory access type |