diff options
Diffstat (limited to 'opcodes/riscv-opc.c')
| -rw-r--r-- | opcodes/riscv-opc.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c index daa888d..38a4624 100644 --- a/opcodes/riscv-opc.c +++ b/opcodes/riscv-opc.c @@ -143,6 +143,20 @@ const float riscv_fli_numval[32] = 0x1p+3, 0x1p+4, 0x1p+7, 0x1p+8, 0x1p+15, 0x1p+16, 0x0p+0, 0x0p+0 }; +/* Get sp base adjustment. */ + +unsigned int +riscv_get_sp_base (insn_t opcode, unsigned int xlen) +{ + unsigned reg_size = xlen / 8; + unsigned reg_list = EXTRACT_BITS (opcode, OP_MASK_REG_LIST, OP_SH_REG_LIST); + unsigned min_sp_adj = (reg_list - 3) * reg_size + + (reg_list == 15 ? reg_size : 0); + return (((min_sp_adj / ZCMP_SP_ALIGNMENT) + + (min_sp_adj % ZCMP_SP_ALIGNMENT != 0)) + * ZCMP_SP_ALIGNMENT); +} + #define MASK_RS1 (OP_MASK_RS1 << OP_SH_RS1) #define MASK_RS2 (OP_MASK_RS2 << OP_SH_RS2) #define MASK_RD (OP_MASK_RD << OP_SH_RD) @@ -2068,6 +2082,12 @@ const struct riscv_opcode riscv_opcodes[] = {"c.zext.b", 0, INSN_CLASS_ZCB, "Cs", MATCH_C_ZEXT_B, MASK_C_ZEXT_B, match_opcode, 0 }, {"c.sext.w", 64, INSN_CLASS_ZCB, "d", MATCH_C_ADDIW, MASK_C_ADDIW|MASK_RVC_IMM, match_rd_nonzero, INSN_ALIAS }, +/* Zcmp instructions. */ +{"cm.push", 0, INSN_CLASS_ZCMP, "{Wcr},Wcp", MATCH_CM_PUSH, MASK_CM_PUSH, match_opcode, 0 }, +{"cm.pop", 0, INSN_CLASS_ZCMP, "{Wcr},Wcp", MATCH_CM_POP, MASK_CM_POP, match_opcode, 0 }, +{"cm.popret", 0, INSN_CLASS_ZCMP, "{Wcr},Wcp", MATCH_CM_POPRET, MASK_CM_POPRET, match_opcode, 0 }, +{"cm.popretz", 0, INSN_CLASS_ZCMP, "{Wcr},Wcp", MATCH_CM_POPRETZ, MASK_CM_POPRETZ, match_opcode, 0 }, + /* Supervisor instructions. */ {"csrr", 0, INSN_CLASS_ZICSR, "d,E", MATCH_CSRRS, MASK_CSRRS|MASK_RS1, match_opcode, INSN_ALIAS }, {"csrwi", 0, INSN_CLASS_ZICSR, "E,Z", MATCH_CSRRWI, MASK_CSRRWI|MASK_RD, match_opcode, INSN_ALIAS }, |