51 lines
1.0 KiB
Go
51 lines
1.0 KiB
Go
package main
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import (
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"io/ioutil"
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"github.com/gonuts/commander"
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"github.com/zellyn/goapple2/videoscan"
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)
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var cmdCharROM = &commander.Command{
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Run: runCharROM,
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UsageLine: "charrom infile outfile",
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Short: "convert apple II character ROMs to text and back",
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Long: `
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CharROM is a simple character ROM conversion utility.
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`,
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}
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var decompile bool
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var reverse bool
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func init() {
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cmdCharROM.Flag.BoolVar(&decompile, "d", false, "decompile: convert from ROM to text.")
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cmdCharROM.Flag.BoolVar(&reverse, "r", false, "reverse: put bits in opposite order.")
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}
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func runCharROM(cmd *commander.Command, args []string) error {
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if len(args) != 2 {
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cmd.Usage()
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return nil
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}
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in, err := ioutil.ReadFile(args[0])
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if err != nil {
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panic("Cannot read file: " + args[0])
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}
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if decompile {
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out := videoscan.BytesToText(in, reverse)
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err := ioutil.WriteFile(args[1], out, 0644)
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return err
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}
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out, err := videoscan.TextToBytes(in, reverse)
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if err != nil {
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return err
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}
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err = ioutil.WriteFile(args[1], out, 0644)
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return err
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}
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