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Update README.md

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Donald Sebastian Leung 2020-08-13 14:28:42 +08:00
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@ -87,16 +87,16 @@ Below is a list of instructions currently supported by this port of the riscv-fo
### ISAs
TODO
- `IsaRV32I`: RV32I Base ISA
## Core-specific constants
The following core-specific constants are currently supported:
| Constant | Description | Valid value(s) | Supported by instruction(s) |
| --- | --- | --- | --- |
| `RISCV_FORMAL_ILEN` | Max length of instruction retired by core | `32` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND |
| `RISCV_FORMAL_XLEN` | Width of integer registers | `32` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND |
| `RISCV_FORMAL_CSR_MISA` | Support for MISA CSRs enabled | `True`, `False` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND |
| `RISCV_FORMAL_COMPRESSED` | Support for compressed instructions | `True`, `False` | JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU |
| `RISCV_FORMAL_ALIGNED_MEM` | Require aligned memory accesses | `True`, `False` | LB, LH, LW, LBU, LHU, SB, SH, SW |
| Constant | Description | Valid value(s) | Supported by instruction(s) | Supported by ISA(s) |
| --- | --- | --- | --- | --- |
| `RISCV_FORMAL_ILEN` | Max length of instruction retired by core | `32` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND | RV32I |
| `RISCV_FORMAL_XLEN` | Width of integer registers | `32` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND | RV32I |
| `RISCV_FORMAL_CSR_MISA` | Support for MISA CSRs enabled | `True`, `False` | LUI, AUIPC, JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU, LB, LH, LW, LBU, LHU, SB, SH, SW, ADDI, SLTI, SLTIU, XORI, ORI, ANDI, SLLI, SRLI, SRAI, ADD, SUB, SLL, SLT, SLTU, XOR, SRL, SRA, OR, AND | RV32I |
| `RISCV_FORMAL_COMPRESSED` | Support for compressed instructions | `True`, `False` | JAL, JALR, BEQ, BNE, BLT, BGE, BLTU, BGEU | RV32I |
| `RISCV_FORMAL_ALIGNED_MEM` | Require aligned memory accesses | `True`, `False` | LB, LH, LW, LBU, LHU, SB, SH, SW | RV32I |