There is no official instruction manual available for reference. The translation of the instructions is based on guesses and lacks testing, so the accuracy of the translation is not guaranteed.
- Provided support for Hi3863V100 (ws63), Hi2821, and other customized RISCV32 from HiSilicon in Ghidra.
- Supported custom instructions:
riscv_push_pop_extension
+----+----+----+----+----+----+---+---+---+---+---+---+---+---+---+---+-----------+
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | name |
+----+----+----+----+----+----+---+---+---+---+---+---+---+---+---+---+-----------+
| 1 | 0 | 0 | sp16imm | rcount | 0 | 0 | 0 | 0 | C.POP |
+----+----+----+----+----+----+---+---+--+---+----+---+---+---+---+---+-----------+
| 1 | 0 | 0 | sp16imm | rcount | 0 | 1 | 0 | 0 | C.POPRET |
+----+----+----+----+----+----+---+---+--+---+----+---+---+---+---+---+-----------+
| 1 | 0 | 0 | sp16imm | rcount | 1 | 0 | 0 | 0 | C.PUSH |
+----+----+----+----+----+----+---+---+--+---+----+---+---+---+---+---+-----------+
riscv_LLI_extension
+-----+-----+-----+-------+-----+----+-------+----+----+---+---+------------------------+
|47:43|42:38| 37:32 |31:17|16 | 15:12 | 11 :7 | 6 : 0 | instruction |
+-----+-----+-----+-------+-----+----+-------+----+----+---+---+------------------------+
|imm[31:0] | 0000 | rd |0011111| L.LI |
+-----+-----+-----+-------+-----+----+-------+----+----+---+---+------------------------+
riscv_ldst_bh_extension
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |instruction |
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
| 1 | 0 | 1 | uimm[0,4:3] | rs1’ |uimm[2:1]| rs2’ | 0 | 0 | C.SB (behind C.FSD) |
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
| 0 | 0 | 1 | uimm[0,4:3] | rs1’ |uimm[2:1]| rd’ | 0 | 0 | C.LBU (behind C.FLD) |
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
| 1 | 0 | 1 | uimm[5:3] | rs1’ |uimm[2:1]| rs2’ | 1 | 0 | C.SH (behind C.FSDSP) |
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
| 0 | 0 | 1 | uimm[5:3] | rs1’ |uimm[2:1]| rd’ | 1 | 0 | C.LHU (behind C.FLDSP)|
+----+----+----+----+----+----+---+---+---+----+----+---+---+---+---+---+-----------------------+
riscv_muladd_extension
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| 31 | 30 | 29:27 | 26:25 |24:23| 22:20| 19:15 | 14:12 | 11:9 | 8 | 7 | 6 : 0 | instruction |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| uimm[7:1]\ :sup:`uimm[0]=1` | rs2 | rs1 | 101 | rd |1011011| MULIADD |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| uimm[7:1]\ :sup:`uimm[0]=0` | rs2 | rs1 | 001 | rd |1011011| MULIADD |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
riscv_preshifted_arithmetic
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| 31 | 30 | 29 | 28 | 27 | 26 | 25 |24:23| 22:20| 19:15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 : 0 | instruction |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| **custom-1 encoding group** |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| shtype | shamt | rs2 | rs1 | 000 | rd |0011011| ADDSHF |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| shtype | shamt | rs2 | rs1 | 001 | rd |0011011| SUBSHF |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| shtype | shamt | rs2 | rs1 | 010 | rd |0011011| ORSHF |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| shtype | shamt | rs2 | rs1 | 011 | rd |0011011| XORSHF |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| shtype | shamt | rs2 | rs1 | 100 | rd |0011011| ANDSHF |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
riscv_longjump_extension
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| 31 | 30 | 29:27 | 26:25 |24:23| 22:20| 19:15 | 14:12 | 11:9 | 8 | 7 | 6 : 0 | instruction |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| imm[20,10:1,11,19:12] | imm[24:21] | 0 |1111011| JAL16 |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
| imm[20,10:1,11,19:12] | imm[24:21] | 1 |1111011| J16 |
+----+----+----+----+----+----+----+-----+----+----+-------+----+----+----+----+----+---+---+---+---+---+------------------------+
riscv_condbr_imm_extension
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+-------+--------------+
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |23:22 21:20| 19:15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 : 0 | instruction |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+-------+--------------+
| **custom-0 encoding group** | | |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 000 | offset[5:1] |0111011| BEQI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 001 | offset[5:1] |0111011| BNEI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 100 | offset[5:1] |0111011| BLTI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 101 | offset[5:1] |0111011| BGEI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 110 | offset[5:1] |0111011| BLTUI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
| cmpimm[7:0] | offset[9:6] | rs1 | 111 | offset[5:1] |0111011| BGEUI |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---+---+---+---+---+--------------+
uxth & uxtb
+----+----+----+----+----+----+---+---+---+---+---+---+---+---+---+---+-----------+
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | name |
+----+----+----+----+----+----+---+---+---+---+---+---+---+---+---+---+-----------+
| 1 | 0 | 0 | 1 | 1 | rd | 0 | 1 | 0 | 0 | 0 | 0 | 1 | UXTH |
+----+----+----+----+----+----+---+---+--+---+----+---+---+---+---+---+-----------+
| 1 | 0 | 0 | 1 | 1 | rd | 0 | 0 | 0 | 0 | 0 | 0 | 1 | UXTB |
+----+----+----+----+----+----+---+---+--+---+----+---+---+---+---+---+-----------+
stmia & ldmia
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 : 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 : 0 | instruction |
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
| 0 |s11 |s10 | s9 | s8 | s7 | s6 | s5 | s4 | s3 | s2 | a1 | rs1 | 001 | a0 | s1 |s0 |sp |ra |0001011| STMIA |
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
| 1 |t6 |t5 | t4 | t3 | a7 | a6 | a5 | a4 | a3 | a2 | a1 | rs1 | 001 | a0 | t2 |t1 |t0 |ra |0001011| STMIA |
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
| 0 |s11 |s10 | s9 | s8 | s7 | s6 | s5 | s4 | s3 | s2 | a1 | rs1 | 000 | a0 | s1 |s0 |sp |ra |0001011| LDMIA |
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
| 1 |t6 |t5 | t4 | t3 | a7 | a6 | a5 | a4 | a3 | a2 | a1 | rs1 | 000 | a0 | t2 |t1 |t0 |ra |0001011| LDMIA |
+----+----+----+----+----+----+----+----+----+----+----+----+---------+----+----+----+----+----+---+---+---+-------+----------------+
- Copy this project to the
\Ghidra\Processors\directory.