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Refactor supported instructions to improve code reuse #1

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dsleung merged 84 commits from feature/refactor-insns into master 2020-08-06 09:47:30 +08:00
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# RV32IM Instruction Types
| Instruction type | Instructions |
| --- | --- |
| U-type | lui, auipc |
| UJ-type | jal |
| I-type | jalr, lb, lh, lw, lbu, lhu, addi, slti, sltiu, xori, ori, andi |
| SB-type | beq, bne, blt, bge, bltu, bgeu |
| S-type | sb, sh, sw |
| I-type (shift variation) | slli, srli, srai |
| R-type | add, sub, sll, slt, sltu, xor, srl, sra, or, and, mul, mulh, mulhsu, mulhu, div, divu, rem, remu |