diff options
Diffstat (limited to 'disas/riscv.c')
-rw-r--r-- | disas/riscv.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/disas/riscv.c b/disas/riscv.c index b6789ab..dc3bfb0 100644 --- a/disas/riscv.c +++ b/disas/riscv.c @@ -4700,9 +4700,33 @@ disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst, rv_decode dec = { 0 }; dec.pc = pc; dec.inst = inst; - dec.opcode_data = rvi_opcode_data; dec.cfg = cfg; - decode_inst_opcode(&dec, isa); + + static const struct { + bool (*guard_func)(const RISCVCPUConfig *); + const rv_opcode_data *opcode_data; + void (*decode_func)(rv_decode *, rv_isa); + } decoders[] = { + { always_true_p, rvi_opcode_data, decode_inst_opcode }, + }; + + for (size_t i = 0; i < ARRAY_SIZE(decoders); i++) { + bool (*guard_func)(const RISCVCPUConfig *) = decoders[i].guard_func; + const rv_opcode_data *opcode_data = decoders[i].opcode_data; + void (*decode_func)(rv_decode *, rv_isa) = decoders[i].decode_func; + + if (guard_func(cfg)) { + dec.opcode_data = opcode_data; + decode_func(&dec, isa); + if (dec.op != rv_op_illegal) + break; + } + } + + if (dec.op == rv_op_illegal) { + dec.opcode_data = rvi_opcode_data; + } + decode_inst_operands(&dec, isa); decode_inst_decompress(&dec, isa); decode_inst_lift_pseudo(&dec); |