srctree

Robin Linden parent 59ea1cb8 86f124d8
azm/example: Set up a binary for dumping the assembled code

azm/BUILD added: 35, removed: 3, total 32

@@ -1,4 +1,4 @@

load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")

load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")

load("//bzl:copts.bzl", "HASTUR_COPTS")

cc_library(

@@ -20,3 +20,12 @@ cc_library(

) for src in glob(

include = ["*_test.cpp"],

)]

cc_binary(

name = "azm_example",

srcs = ["azm_example.cpp"],

copts = HASTUR_COPTS,

deps = [

":azm",

)

filename was Deleted added: 35, removed: 3, total 32

@@ -0,0 +1,23 @@

// SPDX-FileCopyrightText: 2023 Robin Lindén <dev@robinlinden.eu>

// SPDX-License-Identifier: BSD-2-Clause

#include "azm/assembler.h"

#include <algorithm>

#include <iostream>

#include <iterator>

int main() {

using namespace azm;

Amd64Assembler assembler;

assembler.mov(Reg32::Eax, Imm32{0xdeadbeef});

assembler.mov(Reg32::Ecx, Imm32{0x4321});

assembler.mov(Reg32::Edx, Imm32{0x12345678});

assembler.mov(Reg32::Ebx, Imm32{0x1234});

assembler.ret();

auto code = assembler.take_assembled();

// Print the machine code in a format usable for something like

// `objdump -D -b binary -mi386:x86-64 -Mintel <file>`.

std::ranges::copy(code, std::ostreambuf_iterator<char>(std::cout));

}