bochs

Open source IA-32 (x86) PC emulator written in C++

brewmacoslinux

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Open source IA-32 (x86) PC emulator written in C++

bochsbximage

Start bochs emulator with interactive debugger$ bochs -q

Run bochs with a specific configuration file$ bochs -f bochsrc.txt

Create a virtual disk image (1GB)$ bximage -func create -type flat -size=1024 disk.img