diff options
Diffstat (limited to 'ci-tests/test-customext.cc')
-rw-r--r-- | ci-tests/test-customext.cc | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/ci-tests/test-customext.cc b/ci-tests/test-customext.cc new file mode 100644 index 0000000..5ef6c4f --- /dev/null +++ b/ci-tests/test-customext.cc @@ -0,0 +1,90 @@ +#include <riscv/extension.h> +#include <riscv/sim.h> + +struct : public arg_t { + std::string to_string(insn_t insn) const { return xpr_name[insn.rd()]; } +} xrd; + +struct : public arg_t { + std::string to_string(insn_t insn) const { return xpr_name[insn.rs1()]; } +} xrs1; + +struct : public arg_t { + std::string to_string(insn_t insn) const { return xpr_name[insn.rs2()]; } +} xrs2; + +struct : public arg_t { + std::string to_string(insn_t insn) const { + return std::to_string((int)insn.shamt()); + } +} shamt; + +static reg_t do_nop4([[maybe_unused]] processor_t *p, + [[maybe_unused]] insn_t insn, reg_t pc) { + return pc + 4; +} + +// dummy extension that uses the same prefix as standard zba extension +struct xslliuw_dummy_t : public extension_t { + const char *name() { return "dummyslliuw"; } + + xslliuw_dummy_t() {} + + std::vector<insn_desc_t> get_instructions() { + std::vector<insn_desc_t> insns; + insns.push_back(insn_desc_t{MATCH_SLLI_UW, MASK_SLLI_UW, do_nop4, do_nop4, + do_nop4, do_nop4, do_nop4, do_nop4, do_nop4, + do_nop4}); + return insns; + } + + std::vector<disasm_insn_t *> get_disasms() { + std::vector<disasm_insn_t *> insns; + insns.push_back(new disasm_insn_t("dummy_slliuw", MATCH_SLLI_UW, + MASK_SLLI_UW, {&xrd, &xrs1, &shamt})); + return insns; + } +}; + +REGISTER_EXTENSION(dummyslliuw, []() { return new xslliuw_dummy_t; }) + +// Copied from spike main. +// TODO: This should really be provided in libriscv +static std::vector<std::pair<reg_t, abstract_mem_t *>> +make_mems(const std::vector<mem_cfg_t> &layout) { + std::vector<std::pair<reg_t, abstract_mem_t *>> mems; + mems.reserve(layout.size()); + for (const auto &cfg : layout) { + mems.push_back(std::make_pair(cfg.get_base(), new mem_t(cfg.get_size()))); + } + return mems; +} + +int main(int argc, char **argv) { + cfg_t cfg; + cfg.isa = "RV64IMAFDCV_xdummyslliuw"; + std::vector<device_factory_t *> plugin_devices; + if (argc != 3) { + std::cerr << "Error: invalid arguments\n"; + exit(1); + } + std::vector<std::string> htif_args{argv[1] /* pk */, argv[2] /* executable */}; + debug_module_config_t dm_config = {.progbufsize = 2, + .max_sba_data_width = 0, + .require_authentication = false, + .abstract_rti = 0, + .support_hasel = true, + .support_abstract_csr_access = true, + .support_abstract_fpr_access = true, + .support_haltgroups = true, + .support_impebreak = true}; + std::vector<std::pair<reg_t, abstract_mem_t *>> mems = + make_mems(cfg.mem_layout); + sim_t sim(&cfg, false, mems, plugin_devices, htif_args, dm_config, + nullptr, // log_path + true, // dtb_enabled + nullptr, // dtb_file + false, // socket_enabled + nullptr); // cmd_file + sim.run(); +} |