mirror of https://github.com/mgcaret/rom4x.git
65 lines
1.5 KiB
Ruby
65 lines
1.5 KiB
Ruby
source_rom = "iic_rom4.bin"
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dest_rom = "iic_rom4x.bin"
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rom_base = 0xc000
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source_files = Rake::FileList.new('*.s')
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desc "Default: clean and build it"
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task :default => [:clean, :assemble, :build_rom] do
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sh "ls -l #{dest_rom}"
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end
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desc "Clean object files"
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task :clean do
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sh "rm -f #{dest_rom}"
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sh "rm -f sf512_#{dest_rom}"
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sh "rm -f *.o"
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sh "rm -f *.lst"
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sh "rm -f *.b"
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end
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desc "Assemble all source files"
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task :assemble => source_files.ext('.b')
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rule ".o" => ".s" do |t|
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sh "ca65 -l #{t.name}.lst #{t.source}"
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end
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rule ".b" => ".o" do |t|
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sh "ld65 -t none -o #{t.name} #{t.source}"
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end
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desc "Build ROM"
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task :build_rom => [:assemble] do
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puts "Building ROM image..."
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obj_files = Rake::FileList.new('*.b')
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rom = File.read(source_rom)
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obj_files.each do |t|
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if t =~ /B(\h)_(\h{4})/
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bnum = $1.to_i(16)
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badd = $2.to_i(16)
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addr = bnum * 16384 + badd - rom_base
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fc = File.read(t)
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fl = fc.bytes.count
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puts "Loading #{t} into bank #{bnum} @ #{badd.to_s(16)}, file addr $#{addr.to_s(16)}, len $#{fl.to_s(16)} (#{fl})"
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nzc = 0
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fc.each_byte do |b|
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nzc += 1 if rom.getbyte(addr) != 0 && rom.getbyte(addr) != b
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rom.setbyte(addr, b)
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addr += 1
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end
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puts "\tNote: patched pver #{nzc} nonzero bytes!" if nzc > 0
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else
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puts "I dont know where to load #{t}"
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end
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end
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File.write(dest_rom, rom)
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puts "ROM image done: #{dest_rom}"
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end
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desc "Build SST27SF512 Image"
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task :sf512 => [:build_rom] do
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sh "cat #{dest_rom} #{dest_rom} > sf512_#{dest_rom}"
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end
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