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Add pioasm c++ constexpr output target

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This commit is contained in:
audiobird 2025-04-06 13:41:04 -07:00
parent 93ea261677
commit 8464e5eeb7
2 changed files with 63 additions and 0 deletions
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1
tools/pioasm/CMakeLists.txt
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@ -27,6 +27,7 @@ add_executable(pioasm
target_sources(pioasm PRIVATE c_sdk_output.cpp)
target_sources(pioasm PRIVATE python_output.cpp)
target_sources(pioasm PRIVATE hex_output.cpp)
target_sources(pioasm PRIVATE constexpr_output.cpp)
target_sources(pioasm PRIVATE json_output.cpp)
target_sources(pioasm PRIVATE ada_output.cpp)
target_sources(pioasm PRIVATE go_output.cpp)

62
tools/pioasm/constexpr_output.cpp Normal file
View File

@ -0,0 +1,62 @@
/*
* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "output_format.h"
#include "pio_disassembler.h"
struct constexpr_output : public output_format {
struct factory {
factory() { output_format::add(new constexpr_output()); }
};
constexpr_output() : output_format("constexpr") {}
std::string get_description() {
return "c++ constexpr array output (only raw program are output) ";
}
virtual int output(std::string destination,
std::vector<std::string> output_options,
const compiled_source &source) {
FILE *out = open_single_output(destination);
if (!out)
return 1;
fprintf(out, "#pragma once\n\n");
fprintf(out, "#include <array>\n");
fprintf(out, "#include <cstdint>\n\n");
fprintf(out, "namespace Pioasm {\n\n");
for (auto &p : source.programs) {
fprintf(out, "inline constexpr std::array<uint16_t, %lu> %s = {\n",
p.instructions.size(), p.name.c_str());
for (auto i = 0u; i < p.instructions.size(); ++i) {
const auto &inst = p.instructions[i];
if (i == p.wrap_target) {
fprintf(out, " // .wrap_target\n");
}
fprintf(out, " 0x%04x, // %2d: %s\n", inst, i,
disassemble(inst, p.sideset_bits_including_opt.get(),
p.sideset_opt)
.c_str());
if (i == p.wrap) {
fprintf(out, " // .wrap\n");
}
}
fprintf(out, "};\n\n");
}
fprintf(out, "}");
if (out != stdout) {
fclose(out);
}
return 0;
}
};
static constexpr_output::factory creator;