diff options
Diffstat (limited to 'spike_main')
| -rw-r--r-- | spike_main/disasm.cc | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/spike_main/disasm.cc b/spike_main/disasm.cc index 975b5f7..eeeaff2 100644 --- a/spike_main/disasm.cc +++ b/spike_main/disasm.cc @@ -347,6 +347,18 @@ struct : public arg_t { } } v_vtype; +struct : public arg_t { + std::string to_string(insn_t insn) const { + return "x0"; + } +} x0; + +typedef struct { + reg_t match; + reg_t mask; + const char *fmt; + std::vector<const arg_t*>& arg; +} custom_fmt_t; std::string disassembler_t::disassemble(insn_t insn) const { @@ -366,6 +378,9 @@ disassembler_t::disassembler_t(int xlen) const uint32_t mask_rvc_rs2 = 0x1fUL << 2; const uint32_t mask_rvc_imm = mask_rvc_rs2 | 0x1000UL; const uint32_t mask_nf = 0x7Ul << 29; + const uint32_t mask_wd = 0x1Ul << 26; + const uint32_t mask_amoop = 0x1fUl << 27; + const uint32_t mask_width = 0x7Ul << 12; #define DECLARE_INSN(code, match, mask) \ const uint32_t match_##code = match; \ @@ -1111,6 +1126,41 @@ disassembler_t::disassembler_t(int xlen) #undef DISASM_OPIV_W__INSN #undef DISASM_VFUNARY0_INSN + // vector amo + std::vector<const arg_t *> v_fmt_amo_wd = {&vd, &v_address, &vs2, &vd, &opt, &vm}; + std::vector<const arg_t *> v_fmt_amo = {&x0, &v_address, &vs2, &vd, &opt, &vm}; + for (size_t elt = 0; elt <= 3; ++elt) { + const custom_fmt_t template_insn[] = { + {match_vamoswape8_v | mask_wd, mask_vamoswape8_v | mask_wd, + "%se%d.v", v_fmt_amo_wd}, + {match_vamoswape8_v, mask_vamoswape8_v | mask_wd, + "%se%d.v", v_fmt_amo}, + }; + std::pair<const char*, reg_t> amo_map[] = { + {"vamoswap", 0x01ul << 27}, + {"vamoadd", 0x00ul << 27}, + {"vamoxor", 0x04ul << 27}, + {"vamoor", 0x0cul << 27}, + {"vamomin", 0x10ul << 27}, + {"vamomax", 0x14ul << 27}, + {"vamominu", 0x18ul << 27}, + {"vamomaxu", 0x1cul << 27}}; + const reg_t elt_map[] = {0x0ul << 12, 0x4ul << 12, + 0x6ul <<12, 0x7ul << 12}; + + for (size_t idx = 0; idx < sizeof(amo_map) / sizeof(amo_map[0]); ++idx) { + for (auto item : template_insn) { + char buf[128]; + sprintf(buf, item.fmt, amo_map[idx].first, 8 << elt); + add_insn(new disasm_insn_t(buf, + (item.match & ~mask_width & ~mask_amoop) | + (amo_map[idx].second | elt_map[elt]), + item.mask, + item.arg)); + } + } + } + if (xlen == 32) { DISASM_INSN("c.flw", c_flw, 0, {&rvc_fp_rs2s, &rvc_lw_address}); DISASM_INSN("c.flwsp", c_flwsp, 0, {&frd, &rvc_lwsp_address}); |