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BLOCK_SIZE="1k"
# By default (no expansion enabled), the vga ROM is mapped at 0xc0000 (768kB)
ROM_OFFSET=768
# 128kB ROM
ROM_SIZE=128

# Path to store the ROM image
ROM_PATH="ROM.bin"

echo "Running: dd if=/dev/mem of=$ROM_PATH bs=$BLOCK_SIZE skip=$ROM_OFFSET count=$ROM_SIZE"
dd if=/dev/mem of=$ROM_PATH bs=$BLOCK_SIZE skip=$ROM_OFFSET count=$ROM_SIZE