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[/] [riscv_vhdl/] [trunk/] [debugger/] [src/] [libdbg64g/] [services/] [exec/] [cmd/] [cmd_read.cpp] - Rev 5
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/** * @file * @copyright Copyright 2016 GNSS Sensor Ltd. All right reserved. * @author Sergey Khabarov - sergeykhbr@gmail.com * @brief Read/write memory. */ #include "cmd_read.h" namespace debugger { CmdRead::CmdRead(ITap *tap, ISocInfo *info) : ICommand ("read", tap, info) { briefDescr_.make_string("Read memory"); detailedDescr_.make_string( "Description:\n" " 32-bits aligned memory reading. Default bytes = 4 bytes.\n" "Usage:\n" " read <addr> <bytes>\n" "Example:\n" " read 0xfffff004 16\n" " read 0xfffff004\n"); rdData_.make_data(1024); } bool CmdRead::isValid(AttributeType *args) { if ((*args)[0u].is_equal(cmdName_.to_string()) && (args->size() == 2 || args->size() == 3)) { return CMD_VALID; } return CMD_INVALID; } void CmdRead::exec(AttributeType *args, AttributeType *res) { res->make_nil(); if (!isValid(args)) { generateError(res, "Wrong argument list"); return; } uint64_t addr = (*args)[1].to_uint64(); unsigned bytes = 4; if (args->size() == 3) { bytes = static_cast<unsigned>((*args)[2].to_uint64()); } /** Use 4 x Buffer size to store formatted output */ if (4 * bytes > rdData_.size()) { rdData_.make_data(4 * bytes); } if (tap_->read(addr, bytes, rdData_.data()) == TAP_ERROR) { res->make_nil(); return; } res->make_data(bytes, rdData_.data()); } void CmdRead::to_string(AttributeType *args, AttributeType *res, AttributeType *out) { uint64_t addr = (*args)[1].to_uint64(); int bytes = 4; if (args->size() == 3) { bytes = static_cast<int>((*args)[2].to_uint64()); } const uint64_t MSK64 = 0x7ull; uint64_t addr_start, addr_end, inv_i; addr_start = addr & ~MSK64; addr_end = (addr + bytes + 7) & ~MSK64; int strsz = 0; int rdBufSz = static_cast<int>(rdData_.size()); char *strbuf = reinterpret_cast<char *>(rdData_.data()); for (uint64_t i = addr_start; i < addr_end; i++) { if ((i & MSK64) == 0) { // Output address: strsz += RISCV_sprintf(&strbuf[strsz], rdBufSz - strsz, "[%016" RV_PRI64 "x]: ", i); } inv_i = (i & ~MSK64) | (MSK64 - (i & MSK64)); if ((addr <= inv_i) && (inv_i < (addr + bytes))) { strsz += RISCV_sprintf(&strbuf[strsz], rdBufSz - strsz, " %02x", res->data()[inv_i - addr]); } else { strsz += RISCV_sprintf(&strbuf[strsz], rdBufSz - strsz, " .."); } if ((i & MSK64) == MSK64) { strsz += RISCV_sprintf(&strbuf[strsz], rdBufSz - strsz, "\n"); } } out->make_string(strbuf); } } // namespace debugger
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