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| Rev 33 |
Rev 34 |
| Line 114... |
Line 114... |
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-- The high attribute points to the highes bit position
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-- The high attribute points to the highes bit position
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case opcodeIR is
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case opcodeIR is
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when mov_reg | mov_val | add_reg | sub_reg | and_reg | or_reg | xor_reg | ld_reg | ld_val | stom_reg | stom_val =>
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when mov_reg | mov_val | add_reg | sub_reg | and_reg | or_reg | xor_reg | ld_reg | ld_val | stom_reg | stom_val =>
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nextCpuState <= execute;
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nextCpuState <= execute;
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cyclesExecute := 3; -- Wait 3 cycles for mov operation
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cyclesExecute := 1; -- Wait 1 cycles
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currInstruction <= IR;
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currInstruction <= IR;
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when jmp_val | jmpr_val =>
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when jmp_val | jmpr_val =>
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nextCpuState <= execute;
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nextCpuState <= execute;
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cyclesExecute := 1;
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cyclesExecute := 0; -- No Wait cycle
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-- Invalid instruction (Now will be ignored, but latter should raise a trap
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-- Invalid instruction (Now will be ignored, but latter should raise a trap
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when others =>
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when others =>
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null;
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null;
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end case;
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end case;
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