diff options
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/riscv-dis.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c index 99cebf3..2594e81 100644 --- a/opcodes/riscv-dis.c +++ b/opcodes/riscv-dis.c @@ -562,7 +562,41 @@ print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info print (info->stream, dis_style_text, "%d", rs1); break; + case 'X': /* Integer immediate. */ + { + size_t n; + size_t s; + bool sign; + + switch (*++oparg) + { + case 's': /* 'XsN@S' ... N-bit signed immediate at bit S. */ + sign = true; + goto print_imm; + case 'u': /* 'XuN@S' ... N-bit unsigned immediate at bit S. */ + sign = false; + goto print_imm; + print_imm: + n = strtol (++oparg, (char **)&oparg, 10); + if (*oparg != '@') + goto undefined_modifier; + s = strtol (++oparg, (char **)&oparg, 10); + oparg--; + + if (!sign) + print (info->stream, dis_style_immediate, "%u", + (unsigned)EXTRACT_U_IMM (n, s, l)); + else + print (info->stream, dis_style_immediate, "%i", + (unsigned)EXTRACT_S_IMM (n, s, l)); + break; + default: + goto undefined_modifier; + } + } + break; default: + undefined_modifier: /* xgettext:c-format */ print (info->stream, dis_style_text, _("# internal error, undefined modifier (%c)"), |