├── .gitignore ├── LICENSE.txt ├── README.md ├── docs ├── changelog.md ├── index.md ├── tzxcat.md ├── tzxcleanup.md ├── tzxcut.md ├── tzxls.md ├── tzxmerge.md ├── tzxplay.md ├── tzxsplit.md ├── tzxtap.md └── tzxwav.md ├── mkdocs.yml ├── setup.py ├── tzxlib ├── __init__.py ├── convert.py ├── loader.py ├── saver.py ├── tapfile.py ├── tzxblocks.py ├── tzxfile.py └── z80dis.py └── tzxtools ├── __init__.py ├── tzxcat.py ├── tzxcleanup.py ├── tzxcut.py ├── tzxls.py ├── tzxmerge.py ├── tzxplay.py ├── tzxsplit.py ├── tzxtap.py └── tzxwav.py /.gitignore: -------------------------------------------------------------------------------- 1 | /dist/ 2 | /site/ 3 | /*.egg 4 | /*.egg-info 5 | *.py[cod] 6 | *.tzx 7 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # tzxtools 2 | 3 | This is a collection of command line tools for processing TZX files. 4 | 5 | TZX is a common file format for preserving computer tapes of the ZX Spectrum, but also Amstrad CPC, C64 and MSX. `tzxtools` mainly supports ZX Spectrum TZX files, but raw file operations can be applied on any TZX file. It also supports TSX files, which are mainly used for MSX. 6 | 7 | ## Features 8 | 9 | * Convert your old ZX Spectrum tape recordings into TZX files. 10 | * List, split, merge, and divide the blocks inside TZX files. 11 | * Play back TZX files and load them into the real hardware. 12 | * Extract binary content from TZX blocks. 13 | * Read hex dumps, disassembled Z80 machine code, or ZX Spectrum BASIC code. 14 | * Convert ZX Spectrum screens to PNG files. 15 | * Generate TAP files for ZX Spectrum Next and some emulators. 16 | * Disassembler also supports all undocumented Z80 instructions and Z80N (ZX Spectrum Next) instructions. 17 | * Also supports TSX Kansas City Standard blocks. 18 | * All tools can also read TAP files. 19 | 20 | ## Installation 21 | 22 | All the _tzxtools_ are written in Python 3. 23 | 24 | ```sh 25 | pip install tzxtools 26 | ``` 27 | 28 | On MacOS X, [PortAudio](http://www.portaudio.com/) needs to be installed before: 29 | 30 | ```sh 31 | brew install portaudio 32 | pip3 install tzxtools 33 | ``` 34 | 35 | ## Tools 36 | 37 | * `tzxcat` - Extracts data from a TZX file. Optionally disassembles, hex dumps or converts blocks to PNG. 38 | * `tzxcleanup` - Removes all clutter blocks and leaves a clean TZX file. 39 | * `tzxcut` - Cuts blocks from a TZX file. 40 | * `tzxls` - Lists the contents of a TZX file. 41 | * `tzxmerge` - Concatenates multiple TZX files into one file. 42 | * `tzxplay` - Plays back a TZX file for loading into a real ZX Spectrum. 43 | * `tzxsplit` - Splits a TZX file into separate programs. 44 | * `tzxtap` - Converts a TZX file to TAP file format. 45 | * `tzxwav` - Converts WAV file ZX Spectrum tape recordings to TZX files. 46 | 47 | See the [documentation](https://shredzone.org/docs/tzxtools/index.html) for how the tools are used. 48 | 49 | ## File Format References 50 | 51 | The TZX File Format is specified at [World of Spectrum](https://worldofspectrum.net/features/TZXformat.html). 52 | 53 | The TSX "ID 4B - Kansas City Standard" block is not a part of the specification. A documentation can be found at the [makeTSX wiki](https://github.com/nataliapc/makeTSX/wiki/Tutorial-How-to-generate-TSX-files#14-the-new-4b-block). 54 | 55 | The TAP File Format is described at [Sinclair Wiki](https://sinclair.wiki.zxnet.co.uk/wiki/TAP_format). 56 | 57 | ## Contribute 58 | 59 | * Fork the [Source code at Codeberg](https://codeberg.org/shred/tzxtools). Feel free to send pull requests. 60 | * Found a bug? [File a bug report!](https://codeberg.org/shred/tzxtools/issues) 61 | 62 | ## License 63 | 64 | _tzxtools_ is open source software. The source code is distributed under the terms of [GNU General Public License (GPLv3)](https://www.gnu.org/licenses/gpl-3.0.en.html#content). 65 | 66 | ## Acknowledgements 67 | 68 | * I would like to thank all the people who keep the retro computing scene alive. 69 | -------------------------------------------------------------------------------- /docs/changelog.md: -------------------------------------------------------------------------------- 1 | # Changelog 2 | 3 | ## v1.9.4 (2025-04-17) 4 | 5 | * `tzxcat`: Bright colors were not properly converted, fixed (reported by @PedroFreire) 6 | * `tzxcat`: Use the color palette of Fuse emulator for PNG conversion 7 | 8 | ## v1.9.3 (2025-03-18) 9 | 10 | * `tzxcat`: Fix broken linebreaks on Windows (reported by @v-ein) 11 | 12 | ## v1.9.2 (2023-09-21) 13 | 14 | * `tzxplay`: Fix crash on zero length wavelets 15 | 16 | ## v1.9.1 (2022-08-03) 17 | 18 | * `tzxls`: Verbose option threw a Python error, fixed 19 | 20 | ## v1.9.0 (2022-06-03) 21 | 22 | * `tzxtap`: Skip comment blocks, as the TAP file can be read without them 23 | 24 | ## v1.8.0 (2022-03-20) 25 | 26 | * All tools can now also read TAP files 27 | * Use sounddevice instead of pyaudio (which is not maintained any more) 28 | 29 | ## v1.7.0 (2021-02-28) 30 | 31 | * Add new `tzxplay` tool for playing back TZX files 32 | * `tzxcleanup`: Add `--headermustmatch` option (by @oxidaan) 33 | * `tzxwav`: Verbose output shows tape time of each found block (idea by @oxidaan) 34 | 35 | ## v1.6.0 (2020-11-11) 36 | 37 | * Fix `stdin` and `stdout` usage on Windows installations 38 | * `tzxcat`: Also dump contents of deprecated C64 data blocks 39 | 40 | ## v1.5.0 (2020-05-29) 41 | 42 | * `tzxls`: Add `--verbose` option to get more details about TZX blocks 43 | * Add support for TSX Kansas City Standard blocks 44 | * `tzxcat`: Also dump contents of TZX text description blocks 45 | 46 | ## v1.4.0 (2020-05-02) 47 | 48 | * Add more Z80N and CSpect op codes to the disassembler 49 | * Enhance `tzxwav` debug output 50 | 51 | ## v1.3.0 (2019-11-14) 52 | 53 | * Fix broken raw binary output on `tzxcat` 54 | 55 | ## v1.2.0 (2019-01-13) 56 | 57 | * `tzxcat`: Add `--screen` option, to convert a standard ZX Spectrum `SCREEN$` block to a PNG file 58 | * `tzxcat`: Add `--org` option, to set the base address of dumps and disassembles. If not given, the base address of the previous `CODE` header is used 59 | * `tzxcat`: Add `--assembler` option, which disassembles the machine code of a block 60 | * `tzxcat`: Add `--dump` option, which creates a hex dump of the block content 61 | * `tzxcat`: Add `--skip` and `--length` option to extract only parts of a block 62 | 63 | ## v1.1.0 (2018-08-30) 64 | 65 | * Add `tzxtap` tool, it generates `tap` files from `tzx` files 66 | 67 | ## v1.0.1 (2018-08-23) 68 | 69 | * First release 70 | -------------------------------------------------------------------------------- /docs/index.md: -------------------------------------------------------------------------------- 1 | # tzxtools 2 | 3 | This is a collection of command line tools for processing TZX files. 4 | 5 | TZX is a common file format for preserving computer tapes of the ZX Spectrum, but also Amstrad CPC and C64. `tzxtools` mainly supports ZX Spectrum TZX files, but raw file operations can be applied on any TZX file. It also supports TSX files, which are mainly used for MSX. 6 | 7 | ## Features 8 | 9 | * Convert your old ZX Spectrum tape recordings into TZX files. 10 | * List, split, merge, and divide the blocks inside TZX files. 11 | * Extract binary content from TZX blocks. 12 | * Read hex dumps, disassembled Z80 machine code, or ZX Spectrum BASIC code. 13 | * Convert ZX Spectrum screens to PNG files. 14 | * Generate TAP files for ZX Spectrum Next and some emulators. 15 | * Disassembler also supports all undocumented Z80 instructions and Z80N (ZX Spectrum Next) instructions. 16 | * Also supports TSX Kansas City Standard blocks. 17 | * All tools can also read TAP files. 18 | 19 | ## Installation 20 | 21 | All the _tzxtools_ are written in Python 3. 22 | 23 | ```sh 24 | pip install tzxtools 25 | ``` 26 | 27 | On MacOS X, [PortAudio](http://www.portaudio.com/) needs to be installed before: 28 | 29 | ```sh 30 | brew install portaudio 31 | pip3 install tzxtools 32 | ``` 33 | 34 | ## The Tools 35 | 36 | * [`tzxcat`](tzxcat.md) - Extracts data from a TZX file. Optionally disassembles, hex dumps or converts blocks to PNG. 37 | * [`tzxcleanup`](tzxcleanup.md) - Removes all clutter and leaves a clean tape file. 38 | * [`tzxcut`](tzxcut.md) - Cuts blocks from a TZX file. 39 | * [`tzxls`](tzxls.md) - Lists the contents of a TZX file. 40 | * [`tzxmerge`](tzxmerge.md) - Concatenates multiple TZX files into one file. 41 | * [`tzxplay`](tzxplay.md) - Plays back a TZX file for loading into real hardware. 42 | * [`tzxsplit`](tzxsplit.md) - Splits a TZX file into separate programs. 43 | * [`tzxtap`](tzxtap.md) - Converts a TZX file to TAP file format. 44 | * [`tzxwav`](tzxwav.md) - Converts WAV file ZX Spectrum tape recordings to TZX files. 45 | 46 | ## TZX and TSX File Format References 47 | 48 | The TZX File Format is specified at [World of Spectrum](https://www.worldofspectrum.org/TZXformat.html). 49 | 50 | The TSX "ID 4B - Kansas City Standard" block is not a part of the specification. A documentation can be found at the [makeTSX wiki](https://github.com/nataliapc/makeTSX/wiki/Tutorial-How-to-generate-TSX-files#14-the-new-4b-block). 51 | 52 | ## Open Source 53 | 54 | _tzxtools_ is open source software. The source code is available [at Codeberg](https://codeberg.org/shred/tzxtools), and is distributed under the terms of [GNU General Public License (GPLv3)](https://www.gnu.org/licenses/gpl-3.0.en.html#content). 55 | -------------------------------------------------------------------------------- /docs/tzxcat.md: -------------------------------------------------------------------------------- 1 | # `tzxcat` 2 | 3 | Extracts the binary content of TZX data blocks to a file. 4 | 5 | This tool is useful to migrate tape computer files to modern computers. 6 | 7 | It also brings a set of converters to ZX Spectrum BASIC, assembler, ZX Spectrum screens, plain text and hex dump. 8 | 9 | This tool also accepts TAP files. They are converted to TZX format internally. 10 | 11 | ## Usage 12 | 13 | ``` 14 | tzxcat [-h] [-b NR] [-o TARGET] [-s BYTES] [-l BYTES] 15 | [-t] [-B] [-A] [-S] [-d] [-O BASE] [file] 16 | ``` 17 | 18 | * `file`: TZX file to read from, or `stdin` if not given. 19 | * `-o`, `--to`: Target file. If omitted, `stdout` is used. 20 | * `-b`, `--block`: Only extract the TZX block with the given block number. If omitted, all data blocks are concatenated to a single output stream. The selected block must be a data block. If the block has a bad CRC, a warning is printed, but the content is extracted nevertheless. If this is not a ZX Spectrum block, a false CRC error is always reported and can be ignored. 21 | * `-s`, `--skip`: Skip the given number of bytes before output. If omitted, nothing is skipped. If it exceeds the block length, an empty block is written. 22 | * `-l`, `--length`: Limit the output to the given number of bytes. The rest of the block is written if this parameter is omitted or if it exceeds the block length. 23 | * `-h`, `--help`: Show help message and exit. 24 | 25 | A converter can be applied to the output. If no converter is chosen, the output is just the binary content of the selected block. Available converters are: 26 | 27 | * `-t`, `--text`: Convert ZX Spectrum text to plain text. 28 | * `-B`, `--basic`: Convert ZX Spectrum BASIC to plain text. The result is what you would see on the screen after a `LIST` command. Inline attribute changes are ignored though. 29 | * `-A`, `--assembler`: Disassemble the block, using a simple Z80 disassembler. Undocumented Z80 op codes and Z80N (ZX Spectrum Next) op codes are supported. The disassembler also supports the `exit` and `break` pseudo op codes of the #CSpect emulator. 30 | * `-S`, `--screen`: Convert a ZX Spectrum SCREEN$ to PNG. It is recommended to select the SCREEN block using the `--block` option. 31 | * `-d`, `--dump`: Generate a hex dump of the block contents. 32 | 33 | Additional converter options: 34 | 35 | * `-O`, `--org`: Define the base address for hex dumps and disassembled code. If not given, the starting address given in the previous `Bytes` header is used automatically. If there is no such header, 0 is assumed as base address. 36 | 37 | Converters use your system's encoding as target encoding. If your system does not use Unicode, the presence of some special characters may lead to an error. 38 | 39 | ## Example 40 | 41 | ``` 42 | tzxcat --block 4 --to screen.scr game.tzx 43 | ``` 44 | 45 | Reads the `game.tzx` file and copies the binary contents of the 4th block to `screen.scr`. 46 | 47 | ``` 48 | tzxcat --block 4 --screen --to screen.png game.tzx 49 | ``` 50 | 51 | The same as above, but now the screen is converted to PNG. 52 | 53 | ``` 54 | tzxcat --block 4 --text sources.tzx 55 | ``` 56 | 57 | Dumps block 4 in a (more or less) readable plain text format to stdout. 58 | 59 | ``` 60 | tzxcat --block 4 --dump sources.tzx 61 | ``` 62 | 63 | The same as above, but dumps block 4 as hex dump to stdout. 64 | 65 | ``` 66 | tzxcat --block 2 --basic sources.tzx 67 | ``` 68 | 69 | Shows block 2 as BASIC listing. 70 | 71 | ``` 72 | tzxcat --block 6 --assembler sources.tzx 73 | ``` 74 | 75 | Shows block 6 as disassembled machine code. The starting address of the `Bytes` header in block 5 is used automatically as the base address. 76 | 77 | ``` 78 | tzxcat --block 6 --assembler --org 32768 sources.tzx 79 | ``` 80 | 81 | The same as above, but 32768 is used as fixed base address. 82 | 83 | ## Supported Block Types 84 | 85 | `tzxcat` can extract binary data from all block types containing actual data: 86 | 87 | - 10 - Standard Speed Data Block 88 | - 11 - Turbo Speed Data Block 89 | - 14 - Pure Data Block 90 | - 30 - Text description 91 | - 31 - Message 92 | - 35 - Custom info 93 | - 4B - Kansas City Standard 94 | -------------------------------------------------------------------------------- /docs/tzxcleanup.md: -------------------------------------------------------------------------------- 1 | # `tzxcleanup` 2 | 3 | The only purpose of this tool is to post-process and clean up TZX files **that have been just generated by a tape converter**. It will set idealized timings for ZX Spectrum blocks where applicable. It will remove all unnecessary blocks, like comment blocks or (optionally) blocks with a bad CRC. 4 | 5 | The result might not be loadable at all, so be careful and keep a backup of the original file. 6 | 7 | It is not necessary to use this tool on the output of [`tzxwav`](tzxwav.md), as it wouldn't change anything. 8 | 9 | Use [`tzxcut`](tzxcut.md) to manually clean up all kind of TZX files. 10 | 11 | This tool also accepts a TAP file. It is converted to TZX format internally. 12 | 13 | ## Usage 14 | 15 | ``` 16 | tzxcleanup [-h] [-o TARGET] [-c] [file] 17 | ``` 18 | 19 | * `file`: TZX file to read from, or `stdin` if not given. 20 | * `-o`, `--to`: Target file. If omitted, `stdout` is used. 21 | * `-c`, `--stripcrc`: Also remove all data blocks with a bad CRC. They would usually lead to a "tape loading error". 22 | * `-H`, `--headermustmatch`: Remove all blocks that are not preceeded by a matching header. 23 | * `-h`, `--help`: Show help message and exit. 24 | 25 | ## Example 26 | 27 | ``` 28 | tzxcleanup recording.tzx | tzxls -l 29 | ``` 30 | 31 | Shows the content of a cleaned-up `recording.tzx` file. 32 | 33 | ``` 34 | tzxcleanup -o game.tzx recording.tzx 35 | ``` 36 | 37 | Cleans up a raw `recording.tzx` file and writes it to `game.tzx`. 38 | -------------------------------------------------------------------------------- /docs/tzxcut.md: -------------------------------------------------------------------------------- 1 | # `tzxcut` 2 | 3 | Cuts out blocks from a TZX file into a new TZX file. 4 | 5 | This tool is useful to split the copy of a mixed tape into a separate TZX file for one of the programs. 6 | 7 | See also `tzxsplit`. 8 | 9 | This tool also accepts a TAP file. It is converted to TZX format internally. 10 | 11 | ## Usage 12 | 13 | ``` 14 | tzxcut [-h] [-i SOURCE] [-o TARGET] [-v] [blocks [blocks ...]] 15 | ``` 16 | 17 | * `blocks`: Block number, or range of block numbers, to keep in the output file. Use `tzxls` to find out the block numbers of a TZX file. 18 | * `-i`, `--from`: TZX file to read from, or `stdin` if not given. 19 | * `-o`, `--to`: Target file. If omitted, `stdout` is used. 20 | * `-v`, `--invert`: Invert block matches. The given block numbers are not kept, but removed. 21 | * `-h`, `--help`: Show help message and exit. 22 | 23 | Blocks can be addressed in a single number or in a range: 24 | 25 | * `13` - Keep block number 13. 26 | * `4:8` - Keep block numbers 4 to 8 (inclusive). 27 | * `3:` - Keep block numbers 3 and higher. 28 | * `:4` - Keep the first blocks up to block 4 (inclusive). 29 | 30 | Remember that blocks are counted starting from zero. 31 | 32 | Negative block numbers are counted backwards from the last block: 33 | 34 | * `-1` - Keep only the last block. 35 | * `4:-2` - Keep block numbers from 4 up to the second to last block. 36 | * `-4:` - Keep the last four blocks. 37 | * `:-3` - Keep all the blocks up the third to last block. 38 | 39 | If you use negative block numbers, it is wise to place a `--` at the command line before the block ranges, so negative block numbers are not interpreted as options (see example below). 40 | 41 | ## Example 42 | 43 | ``` 44 | tzxcut -i games.tzx -o first-game.tzx 0:5 7 45 | ``` 46 | 47 | Copies the blocks 0 to 5 (inclusive) and block 7 of `games.tzx` into a new file `first-game.tzx`. 48 | 49 | ``` 50 | tzxcut -i games.tzx -o first-game.tzx -- -5 -3: 51 | ``` 52 | 53 | Copies the fifth to last and the three last blocks of `games.tzx` into a new file `first-game.tzx`. 54 | -------------------------------------------------------------------------------- /docs/tzxls.md: -------------------------------------------------------------------------------- 1 | # `tzxls` 2 | 3 | Lists the contents of a TZX file. 4 | 5 | Ths tool shows the block numbers, block types and some block contents of a TZX file. 6 | 7 | For ZX Spectrum TZX files, it also shows header contents (like program names or data types). Note that CRC checks only apply for ZX Spectrum files. For other machines, this tool will always report false CRC errors. 8 | 9 | This tool also accepts TAP files. They are converted to TZX format internally. 10 | 11 | ## Usage 12 | 13 | ``` 14 | tzxls [-h] [-s] [-v] file [file ...] 15 | ``` 16 | 17 | * `file`: TZX file or files to read from, or `stdin` if not given. 18 | * `-s`, `--short`: Only shows the names found in ZX Spectrum file headers. 19 | * `-h`, `--help`: Show help message and exit. 20 | * `-v`, `--verbose`: Show more details about each block, if available. 21 | 22 | ## Example 23 | 24 | ``` 25 | tzxls tape.tzx 26 | ``` 27 | 28 | Lists all the TZX file blocks of `tape.tzx`. 29 | 30 | ``` 31 | tzxls -s tape.tzx 32 | ``` 33 | Lists the names of all the ZX Spectrum program and data files found on the `tape.tzx`. 34 | 35 | ``` 36 | tzxls -v tape.tzx 37 | ``` 38 | 39 | Lists all the TZX file blocks of `tape.tzx`, and shows details about each block. 40 | -------------------------------------------------------------------------------- /docs/tzxmerge.md: -------------------------------------------------------------------------------- 1 | # `tzxmerge` 2 | 3 | Merges multiple TZX files into a single TZX file. 4 | 5 | Multiple TZX files can also just be concatenated (e.g. `cat file1.tzx file2.tzx > files.tzx`), but this will add an unused "glue" block. `tzxmerge` merges TZX files without a "glue" block. It also fails if one of the files is not a TZX file. 6 | 7 | This tool also accepts TAP files. They are converted to TZX format internally. 8 | 9 | ## Usage 10 | 11 | ``` 12 | tzxmerge [-h] [--to TARGET] files [files ...] 13 | ``` 14 | 15 | * `files`: TZX files to merge. 16 | * `-o`, `--to`: Target file. If omitted, `stdout` is used. 17 | * `-h`, `--help`: Show help message and exit. 18 | 19 | ## Example 20 | 21 | ``` 22 | tzxmerge -o demo.tzx demo-loader.tzx demo-screen.tzx demo-binaries.tzx 23 | ``` 24 | 25 | Creates a `demo.tzx` file consisting of `demo-loader.tzx`, `demo-screen.tzx` and `demo-binaries.tzx`. 26 | 27 | ``` 28 | tzxmerge -o demo.tzx demo.tap 29 | ``` 30 | 31 | Converts the TAP file `demo.tap` to a TZX file `demo.tzx`. 32 | -------------------------------------------------------------------------------- /docs/tzxplay.md: -------------------------------------------------------------------------------- 1 | # `tzxplay` 2 | 3 | Plays back a TZX file. 4 | 5 | This tool is useful to feed a real ZX Spectrum with a TZX file. It is played back via your system's audio output. Usually you would connect your ZX Spectrum to your computer's headphone output, and then play back the TZX file. 6 | 7 | Optionally, a WAV file can be generated instead. You can store this WAV file on a portable media player, and then use the player to load files into your ZX Spectrum. 8 | 9 | Playback can always be aborted by pressing Ctrl-C. 10 | 11 | This tool also accepts a TAP file. It is converted to TZX format internally. 12 | 13 | ## Notes 14 | 15 | * **TURN DOWN THE SYSTEM VOLUME FIRST!** The output signal is very loud, and may damage your speakers with its rectangle pulses. Make sure to turn down your system volume before using `tzxplay` for the first time. 16 | 17 | * Do not compress the WAV file with a lossy format like mp3 or Ogg Vorbis. This may lead to tape loading errors. Remember that lossy compressors are optimized for human ears, not ZX Spectrum ears. Lossless formats like FLAC can be used, though. 18 | 19 | * `tzxplay` supports the most commonly used blocks at the moment, so classic recordings and even many speedloaders can be played back. However, some very special data blocks and control blocks will be ignored, or lead to an error. 20 | 21 | * The generated WAV file can become quite large, especially if the TZX file contains jumps or loops. Broken TZX files can even result in an endless loop. You can press Ctrl-C to abort `tzxplay`. 22 | 23 | * Playback of C64 or Kansas City Standard blocks is not supported at the moment. 24 | 25 | * You can use [`tzxcut`](tzxcut.md) to play only a subset of blocks from a TZX file (see example below). 26 | 27 | ## Usage 28 | 29 | ``` 30 | tzxplay [-h] [-o TARGET] [-v] [-s] [-K] [-r RATE] [-c CLOCK] [-S] [file] 31 | ``` 32 | 33 | * `file`: TZX file to read from, or `stdin` if not given. 34 | * `-o`, `--to`: Create a WAV file instead of playing audio. 35 | * `-v`, `--verbose`: Be verbose about what you are doing. 36 | * `-s`, `--stop`: Stop playback on Stop-The-Tape blocks. By default, playback only stops when the end of the TZX file is reached. 37 | * `-K`, `--48k`: Enable ZX Spectrum 48K mode. If set, playback stops on a 2A block ("Stop the tape if in 48K mode"). Use this option if you have a dual 48K/128K tape, and only want to load the ZX Spectrum 48K part. 38 | * `-r`, `--rate`: Output sampling rate, default is 44100 Hz. Please use only common sampling rates like 22050, 32000, 44100, 48000. While `tzxplay` will accept other rates, they may result in playback problems. 39 | * `-c`, `--clock`: Change reference Z80 CPU clock speed, in Hz. Default is 3500000. There is usually no need to change it. 40 | * `-S`, `--sine`: By default `tzxplay` generates perfect rectangle pulses. They are optimal for loading, but do not sound really Spectrum-ish. With this option, the sine pulses of a classic tape recording are simulated. 41 | * `-h`, `--help`: Show help message and exit. 42 | 43 | ## Example 44 | 45 | ``` 46 | tzxplay game.tzx 47 | ``` 48 | 49 | Read `game.tzx` and play it back via your computer's audio interface. 50 | 51 | ``` 52 | tzxplay -v game.tzx 53 | ``` 54 | 55 | Like above, but also shows what block is being processed. 56 | 57 | ``` 58 | tzxplay -o game.wav game.tzx 59 | ``` 60 | 61 | Generate a WAV file instead. 62 | 63 | ``` 64 | tzxcut -i games.tzx 0:5 | tzxplay 65 | ``` 66 | 67 | Only play back blocks 0 to 5 (inclusive). -------------------------------------------------------------------------------- /docs/tzxsplit.md: -------------------------------------------------------------------------------- 1 | # `tzxsplit` 2 | 3 | Splits a TZX file into its different programs. 4 | 5 | This tool is useful to automatically split up a single TZX file of a mixed tape with different programs. `tzxsplit` searches for a ZX Spectrum "Program" block, and then extracts the program itself and all subsequent blocks up to the next "Program" block. 6 | 7 | Each program and the subsequent blocks are written into a separate TZX file, which is named like the program itself. A number is added to the file name, in order to avoid file name collisions. 8 | 9 | If the tape file should not start with a "Program", all blocks up to the first Program are stored into a TZX file called "preamble.tzx". 10 | 11 | See also `tzxcut`. 12 | 13 | This tool also accepts a TAP file. It is converted to TZX format internally. 14 | 15 | ## Usage 16 | 17 | ``` 18 | tzxsplit [-h] [-d TARGET] [-s] [file] 19 | ``` 20 | 21 | * `file`: TZX file to read from, or `stdin` if not given. 22 | * `-d`, `--dir`: Target directory of the generated TZX files. If omitted, the current directory is used. 23 | * `-s`, `--skip`: Instead of writing a preamble file, just skip all blocks up to the first program. 24 | * `-1`, `--single`: Split at every loadable file instead of splitting at every program. 25 | * `-h`, `--help`: Show help message and exit. 26 | 27 | ## Example 28 | 29 | ``` 30 | tzxsplit tape.tzx 31 | ``` 32 | 33 | Read `tape.tzx` and generate TZX files for all the programs (and the subsequent data blocks) found in it. 34 | -------------------------------------------------------------------------------- /docs/tzxtap.md: -------------------------------------------------------------------------------- 1 | # `tzxtap` 2 | 3 | Converts a TZX file to a TAP file. 4 | 5 | This tool is useful to convert TZX files to the TAP file format. Some emulators or computers are unable to read TZX files, but accept TAP files. This tool converts a TZX file into this format. 6 | 7 | TAP files are much simpler than TZX files, as they only support Standard Speed Data Blocks. TZX comment blocks will be skipped with a warning. Other TZX blocks (like those used by speedloaders) will result in an error, because they cannot be converted to the TAP format. You can enforce conversion by using the `--ignore` option, but it is very unlikely that the resulting TAP file can be loaded successfully. 8 | 9 | This tool also accepts a TAP file, but will generate an identical TAP file from it. 10 | 11 | ## Usage 12 | 13 | ``` 14 | tzxtap [-h] [-o TARGET] [-i] [file] 15 | ``` 16 | 17 | * `file`: TZX file to read from, or `stdin` if not given. 18 | * `-o`, `--to`: Target TAP file to write. If omitted, `stdout` is used. 19 | * `-i`, `--ignore`: Ignore blocks that cannot be stored into a TAP file. 20 | * `-h`, `--help`: Show help message and exit. 21 | 22 | ## Example 23 | 24 | ``` 25 | tzxtap -o tape.tap tape.tzx 26 | ``` 27 | 28 | Read `tape.tzx` and generate a `tape.tap` file from its Standard Speed Data Blocks. 29 | 30 | ``` 31 | tzxtap --ignore -o tape.tap 32 | ``` 33 | 34 | Like above, but ignore all blocks that cannot be converted to TAP files. 35 | -------------------------------------------------------------------------------- /docs/tzxwav.md: -------------------------------------------------------------------------------- 1 | # `tzxwav` 2 | 3 | Reads ZX Spectum tapes from a WAV file and converts it to TZX. 4 | 5 | `tzxwav` is very slow and is only able to convert standard speed recordings. However, its main goal is to handle poor quality recordings. It is robust against tape speed flutter, different recording levels, inverted signals and other tape related problems. 6 | 7 | `tzxwav` is optimized for ZX Spectrum tape recordings with standard timing, and thus unable to properly convert non-standard files, like speedloaders. There are other tools for this purpose, for example `audio2tape` that comes with the [Fuse emulator](http://fuse-emulator.sourceforge.net/). 8 | 9 | ## Usage 10 | 11 | ``` 12 | tzxwav [-h] [-o TARGET] [-p] [-v] [-t {low,med,high}] 13 | [-T {low,med,high}] [-l {none,short,normal,long}] [-c CLOCK] 14 | [-s START] [-e END] [-S {left,mix,right}] [-D] file 15 | ``` 16 | 17 | * `file`: WAV file to read from. Supported is mono and stereo, 8 and 16 bit per channel, any sampling rate. Other file formats are not supported. 18 | * `-o`, `--to`: Target file. If omitted, `stdout` is used. 19 | * `-p`, `--progress`: Show a progress bar on `stderr`. 20 | * `-v`, `--verbose`: Be verbose, show blocks as they are found. It also shows the starting and ending frame number of each block. This can be used for manually repairing CRC errors at the ending frame, or for selecting individual blocks with the `--start` and `--end` option. 21 | * `-t`, `--treshold`: Change sound/noise ratio treshold. Default is `mid`. Try `low` if data blocks are missing or shorter than expected. Try `high` if data blocks are longer than expected. 22 | * `-T`, `--tolerance`: Change tape speed flutter tolerance. Default is `mid`. Try `low` if the TZX file contains many useless blocks. Try `high` if you miss headers or data blocks in the TZX file, or if data blocks are shorter than expected. 23 | * `-l`, `--leader`: Acceptable minimal leader signal length. Default is `normal`. If there are a lot of headerless blocks, or if there are blocks missing in the TZX file, it is worth a try to play with this parameter. `none` even accepts a single header pulse. 24 | * `-s`, `--start`: Set the first frame of the WAV file to be read. If not set, the start of file is used. 25 | * `-e`, `--end`: Set the last frame of the WAV file to be read. For technical reasons, this limit may be exceeded by a few frames. If not set, or if set out of range, the file will be read to the end. 26 | * `-c`, `--clock`: Change reference Z80 CPU clock speed, in Hz. Default is 3500000. It is also useful for correcting a wrong playback speed. For example, if your tape was played back 5% too fast, adjust the clock to 3500000 * 5% = 3675000 to improve the results. 27 | * `-S`, `--stereo`: Select channel of the stereo WAV file to be used. Default is `mix` of both channels. 28 | * `-D`, `--debug`: Show debugging output. Useful for finding out why `tzxwav` was unable to correctly read a file. Prints detected blocks and their position frame in the WAV file. If given two times, also prints detected bits and bytes. If given three times, prints detected pulse lengths (in T states) and their WAV file position. If given four times, also prints the reason why a sync or bit pulse was rejected. Attention, it will create a *lot* of useless output! 29 | * `-h`, `--help`: Show help message and exit. 30 | 31 | ## Sampling recommendation 32 | 33 | You will get best results if you use a sampling rate of at least 44100 Hz, 16 bit resolution per sample, and a single audio channel. I recommend to decide either on the left or right channel, depending on the quality. Avoid mixing down stereo to mono. 34 | 35 | Use a proper recording level, but try to avoid clipping. 36 | 37 | Do not apply any low pass or band pass digital filters, unless the audio quality is really bad and you get too many CRC errors. However for tape files that were generated by a tool or were compressed by a lossy compression, it may help to apply a low pass filter with a cut off frequency of 1600 Hz first. 38 | 39 | ## Example 40 | 41 | ``` 42 | tzxwav -o tape.tzx tape.wav 43 | ``` 44 | 45 | Reads the `tape.wav` file and converts it to a `tape.tzx` file. 46 | 47 | ``` 48 | tzxwav -tlow -Thigh -lshort -o tape.tzx tape.wav 49 | ``` 50 | 51 | Tries its best to read a poor quality audio file from `tape.wav`, but may also generate some useless blocks in the TZX file. 52 | -------------------------------------------------------------------------------- /mkdocs.yml: -------------------------------------------------------------------------------- 1 | site_name: tzxtools 2 | site_author: Richard Körber 3 | site_url: https://shredzone.org/docs/tzxtools/index.html 4 | theme: 5 | name: material 6 | font: false 7 | icon: 8 | logo: 'material/cassette' 9 | palette: 10 | primary: 'blue' 11 | accent: 'deep orange' 12 | nav: 13 | - 'Installation': 'index.md' 14 | - 'tzxcat': 'tzxcat.md' 15 | - 'tzxcleanup': 'tzxcleanup.md' 16 | - 'tzxcut': 'tzxcut.md' 17 | - 'tzxls': 'tzxls.md' 18 | - 'tzxmerge': 'tzxmerge.md' 19 | - 'tzxplay': 'tzxplay.md' 20 | - 'tzxsplit': 'tzxsplit.md' 21 | - 'tzxtap': 'tzxtap.md' 22 | - 'tzxwav': 'tzxwav.md' 23 | - 'Changelog': 'changelog.md' 24 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | # 2 | # tzxtools - a collection for processing tzx files 3 | # 4 | # Copyright (C) 2018 Richard "Shred" Körber 5 | # https://codeberg.org/shred/tzxtools 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, either version 3 of the License, or 10 | # (at your option) any later version. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | # GNU General Public License for more details. 16 | # 17 | # You should have received a copy of the GNU General Public License 18 | # along with this program. If not, see . 19 | # 20 | 21 | from setuptools import setup 22 | 23 | def readme(): 24 | with open('README.md') as f: 25 | return f.read() 26 | 27 | setup( 28 | name='tzxtools', 29 | version='1.9.4', 30 | description='A tool collection for processing tzx files', 31 | long_description=readme(), 32 | long_description_content_type='text/markdown', 33 | url='https://codeberg.org/shred/tzxtools', 34 | keywords='ZX-Spectrum tzx wav', 35 | license='GPLv3+', 36 | 37 | python_requires='>=3', 38 | 39 | author='Richard Körber', 40 | author_email='dev@shredzone.de', 41 | 42 | project_urls={ 43 | 'Source': 'https://codeberg.org/shred/tzxtools', 44 | 'Tracker': 'https://codeberg.org/shred/tzxtools/issues', 45 | }, 46 | 47 | classifiers=[ 48 | 'Development Status :: 5 - Production/Stable', 49 | 'Environment :: Console', 50 | 'Intended Audience :: Developers', 51 | 'Intended Audience :: End Users/Desktop', 52 | 'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)', 53 | 'Operating System :: OS Independent', 54 | 'Programming Language :: Python :: 3 :: Only', 55 | 'Topic :: System :: Archiving', 56 | 'Topic :: System :: Emulators', 57 | 'Topic :: Utilities' 58 | ], 59 | 60 | packages=['tzxtools', 'tzxlib'], 61 | 62 | install_requires=[ 63 | 'numpy >= 1.20.0', 64 | 'pypng >= 0.0.20', 65 | 'sounddevice >= 0.4.0', 66 | ], 67 | 68 | entry_points={ 69 | 'console_scripts': [ 70 | 'tzxcat=tzxtools.tzxcat:main', 71 | 'tzxcleanup=tzxtools.tzxcleanup:main', 72 | 'tzxcut=tzxtools.tzxcut:main', 73 | 'tzxls=tzxtools.tzxls:main', 74 | 'tzxmerge=tzxtools.tzxmerge:main', 75 | 'tzxplay=tzxtools.tzxplay:main', 76 | 'tzxsplit=tzxtools.tzxsplit:main', 77 | 'tzxtap=tzxtools.tzxtap:main', 78 | 'tzxwav=tzxtools.tzxwav:main', 79 | ], 80 | }, 81 | ) 82 | -------------------------------------------------------------------------------- /tzxlib/__init__.py: -------------------------------------------------------------------------------- 1 | name = "tzxlib" 2 | -------------------------------------------------------------------------------- /tzxlib/convert.py: -------------------------------------------------------------------------------- 1 | # coding=utf-8 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2018 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import os 23 | from sys import getdefaultencoding 24 | from struct import unpack 25 | from tzxlib.z80dis import disassemble 26 | 27 | UPPER = [ ' ', '▝', '▘', '▀', '▗', '▐', '▚', '▜', '▖', '▞', '▌', '▛', '▄', '▟', 28 | '▙', '█', 'Ⓐ', 'Ⓑ', 'Ⓒ', 'Ⓓ', 'Ⓔ', 'Ⓕ', 'Ⓖ', 'Ⓗ', 'Ⓘ', 'Ⓙ', 'Ⓚ', 29 | 'Ⓛ', 'Ⓜ', 'Ⓝ', 'Ⓞ', 'Ⓟ', 'Ⓠ', 'Ⓡ', 'Ⓢ', 'Ⓣ', 'Ⓤ', 'RND', 'INKEY$', 30 | 'PI', 'FN ', 'POINT ', 'SCREEN$ ', 'ATTR ', 'AT ', 'TAB ', 'VAL$ ', 31 | 'CODE ', 'VAL ', 'LEN ', 'SIN ', 'COS ', 'TAN ', 'ASN ', 'ACS ', 'ATN ', 32 | 'LN ', 'EXP ', 'INT ', 'SQR ', 'SGN ', 'ABS ', 'PEEK ', 'IN ', 'USR ', 33 | 'STR$ ', 'CHR$ ', 'NOT ', 'BIN ', ' OR ', ' AND ', '<=', '>=', '<>', 34 | ' LINE ', ' THEN ', ' TO ', ' STEP ', ' DEF FN ', ' CAT ', ' FORMAT ', 35 | ' MOVE ', ' ERASE ', ' OPEN #', ' CLOSE #', ' MERGE ', ' VERIFY ', 36 | ' BEEP ', ' CIRCLE ', ' INK ', ' PAPER ', ' FLASH ', ' BRIGHT ', 37 | ' INVERSE ', ' OVER ', ' OUT ', ' LPRINT ', ' LLIST ', ' STOP ', ' READ ', 38 | ' DATA ', ' RESTORE ', ' NEW ', ' BORDER ', ' CONTINUE ', ' DIM ', ' REM ', 39 | ' FOR ', ' GO TO ', ' GO SUB ', ' INPUT ', ' LOAD ', ' LIST ', ' LET ', 40 | ' PAUSE ', ' NEXT ', ' POKE ', ' PRINT ', ' PLOT ', ' RUN ', ' SAVE ', 41 | ' RANDOMIZE ', ' IF ', ' CLS ', ' DRAW ', ' CLEAR ', ' RETURN ', ' COPY ' ] 42 | 43 | def convChar(ch, noLeadingSpace=False): 44 | if ch == 0x0D: return '\n' 45 | elif ch >= 0x80: 46 | result = UPPER[ch - 0x80] 47 | if noLeadingSpace and ch >= 0xA5 and result[0] == ' ': 48 | return result[1:] 49 | else: 50 | return result 51 | elif ch == 0x5E: return '↑' 52 | elif ch == 0x60: return '£' 53 | elif ch == 0x7F: return '©' 54 | else: return chr(ch) 55 | 56 | def convert(data): 57 | result = '' 58 | for d in data: 59 | if d >= 0x20: 60 | result += convChar(d, result[-1:] == ' ') 61 | return result 62 | 63 | def convertCR(data): 64 | result = '' 65 | for d in data: 66 | if d >= 0x20 or d == 0x0D: 67 | result += convChar(d, result[-1:] == ' ') 68 | return result 69 | 70 | def decodeBasicLine(line): 71 | result = '' 72 | pos = 0 73 | while pos < len(line): 74 | ch = line[pos] 75 | pos += 1 76 | if 0x10 <= ch <= 0x15: 77 | pos += 1 78 | elif 0x16 <= ch <= 0x17: 79 | pos += 2 80 | elif ch == 0x0E: 81 | pos += 5 82 | else: 83 | result += convChar(ch, result[-1:] == ' ') 84 | return result 85 | 86 | def convertToText(data, out, org=0): 87 | out.write(convertCR(data).replace('\n', os.linesep).encode(getdefaultencoding())) 88 | 89 | def convertToBasic(data, out, org=0): 90 | pos = 0 91 | end = len(data) 92 | while pos + 4 < end: 93 | lineNum = unpack('>H', data[pos + 0 : pos + 2])[0] 94 | lineLen = unpack(' end: 96 | break 97 | line = '%4d%s' % (lineNum, decodeBasicLine(unpack('%dB' % (lineLen), data[pos + 4 : pos + 4 + lineLen]))) 98 | out.write(line.replace('\n', os.linesep).encode(getdefaultencoding())) 99 | pos += lineLen + 4 100 | 101 | def convertToDump(data, out, org=0, bytesPerRow=16): 102 | pos = 0 103 | end = len(data) 104 | while pos < end: 105 | line = '%04X | ' % (pos + org) 106 | text = '' 107 | for x in range(bytesPerRow): 108 | if pos + x < end: 109 | line += '%02X ' % (data[pos + x]) 110 | ch = data[pos + x] 111 | if ch < 32: 112 | text += '‧' 113 | else: 114 | ch = convChar(ch) 115 | if len(ch) == 1: 116 | text += ch 117 | else: 118 | text += '‧' 119 | else: 120 | line += ' ' 121 | line += '| ' 122 | line += text 123 | line += '\n' 124 | out.write(line.replace('\n', os.linesep).encode(getdefaultencoding())) 125 | pos += bytesPerRow 126 | 127 | def convertToAssembler(data, out, org=0): 128 | pos = 0 129 | end = len(data) 130 | while pos < end: 131 | try: 132 | (ins, length) = disassemble(data, pos, org) 133 | except: 134 | (ins, length) = ('???', 1) 135 | line = '%04X ' % (pos + org) 136 | for x in range(6): 137 | if x == 5 and length > 6: 138 | line += '...' 139 | elif x < length: 140 | line += '%02X ' % (data[pos + x]) 141 | else: 142 | line += ' ' 143 | line += ' ' 144 | line += ins 145 | line += '\n' 146 | out.write(line.replace('\n', os.linesep).encode(getdefaultencoding())) 147 | pos += length 148 | 149 | def convertToScreen(data, out, org=0): 150 | pixel = [] 151 | for y in range(192): 152 | pixrow = [] 153 | pixel.append(pixrow) 154 | for col in range(32): 155 | palette = readColor(data, y, col) 156 | bits = readBits(data, y, col) 157 | for b in range(8): 158 | if bits & (0b10000000 >> b): 159 | pixrow.append(palette[0]) 160 | else: 161 | pixrow.append(palette[1]) 162 | 163 | import png 164 | pngw = png.Writer(256, 192, palette=PALETTE) 165 | pngw.write(out, pixel) 166 | 167 | def readBits(data, y, col): 168 | block = int(y / 64) 169 | line = int((y % 64) / 8) 170 | row = y % 8 171 | offset = ((((block * 8) + row) * 8) + line) * 32 + col 172 | return data[offset] if offset < len(data) else 0 173 | 174 | def readColor(data, y, col): 175 | row = (int)(y / 8) 176 | offset = 6144 + row * 32 + col 177 | cols = data[offset] if offset < len(data) else 0b00111000 178 | if (cols & 0b01000000) != 0: 179 | return ((cols & 0x07) + 8, (cols >> 3 & 0x07) + 8) 180 | else: 181 | return ((cols & 0x07), (cols >> 3 & 0x07)) 182 | 183 | PALETTE = [ 184 | (0,0,0), (0,0,192), (192,0,0), (192,0,192), (0,192,0), (0,192,192), (192,192,0), (192,192,192), 185 | (0,0,0), (0,0,255), (255,0,0), (255,0,255), (0,255,0), (0,255,255), (255,255,0), (255,255,255), 186 | ] 187 | -------------------------------------------------------------------------------- /tzxlib/loader.py: -------------------------------------------------------------------------------- 1 | # 2 | # tzxtools - a collection for processing tzx files 3 | # 4 | # Copyright (C) 2016 Richard "Shred" Körber 5 | # https://codeberg.org/shred/tzxtools 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, either version 3 of the License, or 10 | # (at your option) any later version. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | # GNU General Public License for more details. 16 | # 17 | # You should have received a copy of the GNU General Public License 18 | # along with this program. If not, see . 19 | # 20 | 21 | from collections import deque 22 | from struct import unpack 23 | import sys 24 | import wave 25 | 26 | from tzxlib.tapfile import TapFile, TapHeader, TapData 27 | from tzxlib.tzxblocks import TzxbData 28 | from tzxlib.tzxfile import TzxFile 29 | 30 | def sgn(val): 31 | return 1 if val >= 0 else -1 32 | 33 | def unpackMono(data, size): 34 | return unpack('<' + size, data)[0] 35 | 36 | def unpackStereo(data, size, leftMix = 0.5): 37 | val = unpack('<' + size + size, data) 38 | return (val[0] * leftMix + val[1] * (1 - leftMix)) 39 | 40 | class TapeLoader(): 41 | 42 | # Actual ZX Spectrum pulse timings: 43 | # length of a half wave, in number of T-states 44 | leaderT = 2168 # leader pulse 45 | syncT = 701 # sync pulse (on: 667, off: 735) 46 | lowT = 855 # 0 bit pulse 47 | highT = 1710 # 1 bit pulse 48 | 49 | def __init__(self, progress=None, debug=None, verbose=False, treshold=3500, tolerance=1.2, leaderMin=20, cpufreq=3500000, leftChMix=0.5): 50 | maxlenT = self.leaderT * 2.2 * tolerance 51 | self.samples = TapeReader(progress=progress, cpufreq=cpufreq, maxlenT=maxlenT, leftChMix=leftChMix) 52 | self.debug = debug if debug is not None else 0 53 | self.verbose = verbose 54 | self.treshold = treshold 55 | self.tolerance = tolerance 56 | self.leaderMin = leaderMin 57 | 58 | def load(self, filename, startFrame=None, endFrame=None): 59 | try: 60 | self.samples.open(filename) 61 | self.samples.fileRange(startFrame, endFrame) 62 | tzx = TzxFile() 63 | while True: 64 | try: 65 | tzxbd = TzxbData() 66 | (tzxData, startPos, endPos) = self._loadBlock() 67 | tzxbd.setup(tzxData) 68 | tzx.blocks.append(tzxbd) 69 | if self.verbose: 70 | startMillis = self.samples.toMilliSeconds(startPos) 71 | startSecs = startMillis // 1000 72 | startMins = startSecs // 60 73 | print(('{:3d}:{:02d}.{:03d} {:9d} - {:9d}: {}').format( 74 | startMins, 75 | startSecs % 60, 76 | startMillis % 1000, 77 | startPos, 78 | endPos, 79 | str(tzxbd) 80 | ), file=sys.stderr) 81 | except BadBlock: 82 | continue # Try again with the next block 83 | except EOFError: 84 | break # we're done! 85 | finally: 86 | self.samples.close() 87 | return tzx 88 | 89 | def _loadBlock(self): 90 | tapCreator = TapCreator() 91 | if self.debug >= 2: 92 | tapCreator.callback = lambda val, crc, lng: \ 93 | print(' > {:5d}: {:02x} {:c} CRC={:02x}'.format( 94 | lng, 95 | val, 96 | val if 0x20 <= val < 0x80 else 0x20, 97 | crc), file=sys.stderr) 98 | self.samples.invert = False 99 | 100 | # Wait for leader 101 | self.samples.nextRaisingEdge() 102 | length = self._testLeaderPulse() 103 | while length is None: 104 | self.samples.advance(self.samples.toFrames(self.leaderT / self.tolerance)) 105 | self.samples.nextRaisingEdge() 106 | length = self._testLeaderPulse() 107 | leaderPos = self.lastPulse 108 | 109 | # Skip leader, wait for sync 110 | leaderLengths = deque([length], maxlen=max(self.leaderMin, 20)) 111 | while True: 112 | length = self._testLeaderPulse() 113 | if length is not None: 114 | leaderLengths.append(length) 115 | continue 116 | 117 | if len(leaderLengths) >= self.leaderMin: 118 | expectedSyncT = 1.1 * (sum(leaderLengths) * self.syncT) / (len(leaderLengths) * self.leaderT) 119 | length = self._testSyncPulse(expectedSyncT) 120 | if length is not None: 121 | # Sync was found 122 | syncPos = self.lastPulse 123 | break 124 | 125 | # Leader was lost 126 | raise BadBlock() 127 | 128 | # Read data block 129 | expectedLowT = (sum(leaderLengths) * self.lowT) / (len(leaderLengths) * self.leaderT) 130 | expectedHighT = (sum(leaderLengths) * self.highT) / (len(leaderLengths) * self.leaderT) 131 | letMeGuess = False 132 | 133 | while True: 134 | lowLen = self._testBitPulse(expectedLowT, '0') 135 | highLen = self._testBitPulse(expectedHighT, '1') 136 | 137 | # We detected a bit for sure? 138 | if lowLen is not None and lowLen[0]: 139 | letMeGuess = True 140 | self._advance(False, lowLen[1]) 141 | tapCreator.shift(False) 142 | continue 143 | 144 | if highLen is not None and highLen[0]: 145 | letMeGuess = True 146 | self._advance(True, highLen[1]) 147 | tapCreator.shift(True) 148 | continue 149 | 150 | # We're not sure, but maybe we're lucky... 151 | if lowLen is not None and highLen is None: 152 | self._advance(False, lowLen[1], tag='gap') 153 | tapCreator.shift(False) 154 | continue 155 | 156 | if highLen is not None and lowLen is None: 157 | self._advance(True, highLen[1], tag='gap') 158 | tapCreator.shift(True) 159 | continue 160 | 161 | # Hope for a broken Low bit, but not too often... 162 | if lowLen is not None and highLen is not None and letMeGuess: 163 | letMeGuess = False 164 | self._advance(False, lowLen[1], tag='noise') 165 | tapCreator.shift(False) 166 | continue 167 | 168 | # Seems we have lost the bit stream... 169 | if len(tapCreator) <= 2: 170 | raise BadBlock 171 | tap = tapCreator.createTap() 172 | if self.debug >= 1: 173 | self._showBlock(tap, leaderPos, syncPos, self.samples.position()) 174 | return (tap, leaderPos, self.samples.position()) 175 | 176 | def _testLeaderPulse(self): 177 | self.samples.ensure() 178 | self.lastPulse = self.samples.position() 179 | 180 | # Convert range to samples 181 | minRange = self.samples.toFrames(self.leaderT / ( 1.3 * self.tolerance)) 182 | maxRange = self.samples.toFrames(self.leaderT * ( 1.1 * self.tolerance)) 183 | 184 | # Find end of half pulse 185 | startSign = sgn(self.samples[0]) 186 | count = 1 187 | while sgn(self.samples[count]) == startSign: 188 | count += 1 189 | if count > maxRange: 190 | return None 191 | 192 | if not (minRange <= count <= maxRange): 193 | return None 194 | 195 | # Compute pulse duration in Z80 T-states 196 | length = self.samples.toTStates(count) 197 | if self.debug >= 3: 198 | print(' # {:5d} @{:n}~{:n}'.format(length, self.lastPulse, self.lastPulse + count), file=sys.stderr) 199 | self.samples.advance(count) 200 | return length 201 | 202 | def _testSyncPulse(self, tCycles): 203 | self.lastPulse = self.samples.position() 204 | self.samples.ensure() 205 | 206 | # Convert to samples 207 | frames = self.samples.toFrames(tCycles * 2) 208 | (minv, maxv, bias) = self.samples.minMaxAvg(frames) 209 | 210 | # Is amplitude above treshold? 211 | if abs(maxv - minv) < self.treshold: 212 | if self.debug >= 4: 213 | print(' ! - below treshold, {} < {}'.format( 214 | abs(maxv - minv), 215 | self.treshold), file=sys.stderr) 216 | return None 217 | 218 | # Find next zero crossing, normal signal 219 | self.samples.invert = False 220 | tag = '-' 221 | count = self._findZeroCrossing(frames, bias, tag) 222 | if not count: 223 | # Find next zero crossing, inverted signal 224 | self.samples.invert = True 225 | (minv, maxv, bias) = (-maxv, -minv, -bias) 226 | tag = '~' 227 | count = self._findZeroCrossing(frames, bias, tag) 228 | if not count: 229 | return None 230 | 231 | # Integrate both half waves 232 | countHalf = count // 2 233 | w1 = sum([self.samples[i] for i in range(0, countHalf)]) / countHalf 234 | w2 = sum([self.samples[i] for i in range(countHalf, count)]) / countHalf 235 | 236 | # Is it a full wave? 237 | if not (w1 < bias and w2 > bias and abs(w2 - w1) >= self.treshold / 2): 238 | if self.debug >= 4: 239 | print(' ! {} not a full wave, w1={} w2={} bias={}'.format(tag, w1, w2, bias), file=sys.stderr) 240 | return None 241 | 242 | # Success, this is a sync 243 | length = self.samples.toTStates(count / 2) 244 | if self.debug >= 3: 245 | print(' {} {:5d} @{:n}~{:n}'.format(tag, length, self.lastPulse, self.lastPulse + count), file=sys.stderr) 246 | self.samples.advance(count) 247 | return length 248 | 249 | def _testBitPulse(self, tCycles, tag): 250 | self.lastPulse = self.samples.position() 251 | self.samples.ensure() 252 | 253 | # Convert to samples 254 | frames = self.samples.toFrames(tCycles * 2) 255 | (minv, maxv, bias) = self.samples.minMaxAvg(frames) 256 | 257 | # Is amplitude above treshold? 258 | if abs(maxv - minv) < self.treshold: 259 | if self.debug >= 4: 260 | print(' ! {} below treshold, {} < {}'.format( 261 | tag, 262 | abs(maxv - minv), 263 | self.treshold), file=sys.stderr) 264 | return None 265 | 266 | # Find next zero crossing 267 | count = self._findZeroCrossing(frames, bias, tag) 268 | if not count: 269 | return None 270 | 271 | # Integrate both half waves 272 | countHalf = count // 2 273 | w1 = sum([self.samples[i] for i in range(0, countHalf)]) / countHalf 274 | w2 = sum([self.samples[i] for i in range(countHalf, count)]) / countHalf 275 | 276 | # Is it a full wave? 277 | if not (w1 < bias and w2 > bias and abs(w2 - w1) >= self.treshold): 278 | if self.debug >= 4: 279 | print(' ! {} not a full wave, w1={} w2={} bias={}'.format(tag, w1, w2, bias), file=sys.stderr) 280 | return (False, count) 281 | 282 | # Success, this is a bit 283 | return (True, count) 284 | 285 | def _advance(self, bit, count, tag=''): 286 | self.samples.advance(count) 287 | if self.debug >= 3: 288 | length = self.samples.toTStates(count / 2) 289 | print(' {} {:5d} @{:n}~{:n} {}'.format(1 if bit else 0, length, self.lastPulse, self.lastPulse + count, tag), file=sys.stderr) 290 | 291 | def _findZeroCrossing(self, frames, bias, tag): 292 | count = frames 293 | countL = int(frames / self.tolerance) 294 | countH = int(frames * self.tolerance) 295 | 296 | while self.samples[count] <= bias: 297 | count -= 1 298 | if count < countL: 299 | if self.debug >= 4: 300 | print(' ! {} no zero crossing detected, count={}, bias={}'.format(tag, count, bias), file=sys.stderr) 301 | return None 302 | 303 | while self.samples[count] > bias: 304 | count += 1 305 | if count > countH: 306 | if self.debug >= 4: 307 | print(' ! {} no wave end in range, count={}, bias={}'.format(tag, count, bias), file=sys.stderr) 308 | return None 309 | 310 | return count 311 | 312 | def _showBlock(self, tap, leaderPos, syncPos, endPos): 313 | if isinstance(tap, TapHeader): 314 | print('=== {}: {}'.format(tap.type(), tap.name()), file=sys.stderr) 315 | if tap.typeId() == 3: 316 | print(' Start: {}, Expected length: {}'.format(tap.param1(), tap.length()), file=sys.stderr) 317 | else: 318 | print(' Expected length: {}'.format(tap.length()), file=sys.stderr) 319 | else: 320 | print('--- data', file=sys.stderr) 321 | print(' Length: {}'.format(tap.length()), file=sys.stderr) 322 | 323 | if not tap.valid(): 324 | print(' CRC ERROR!', file=sys.stderr) 325 | 326 | print(' Leader: @{:n}, Sync: @{:n}, End: @{:n}'.format(leaderPos, syncPos, endPos), file=sys.stderr) 327 | 328 | 329 | 330 | class TapeReader(): 331 | def __init__(self, progress=None, cpufreq=3500000, maxlenT=6000, leftChMix=0.5): 332 | self.cpufreq = cpufreq 333 | self.progress = progress 334 | self.maxlenT = maxlenT 335 | self.invert = False 336 | self.startFrame = None 337 | self.endFrame = None 338 | self.leftChMix = leftChMix 339 | 340 | def open(self, filename): 341 | """ Opens the given WAV file name """ 342 | self.wav = wave.open(filename, 'r') 343 | self.frameCount = 0 344 | self.readFrame = self._createReader() 345 | self.bytesPerFrame = self.wav.getnchannels() * self.wav.getsampwidth() 346 | self.maxlen = self.toFrames(self.maxlenT) 347 | self.samples = deque(maxlen=self.maxlen) 348 | 349 | def fileRange(self, startFrame, endFrame): 350 | self.startFrame = startFrame 351 | self.endFrame = endFrame 352 | 353 | def close(self): 354 | """ Closes the tape reader """ 355 | if self.progress is not None: 356 | self.progress(self.wav.getnframes(), self.wav.getnframes()) 357 | self.wav.close() 358 | 359 | def __len__(self): 360 | """ Current length of sample buffer """ 361 | return len(self.samples) 362 | 363 | def __getitem__(self, ix): 364 | """ Gets the sample at given index """ 365 | return self.samples[ix] if not self.invert else -self.samples[ix] 366 | 367 | def position(self): 368 | """ Returns current frame position """ 369 | return self.frameCount 370 | 371 | def ensure(self, needed=None): 372 | """ Ensures buffer is filled with sufficient samples """ 373 | if self.startFrame is not None and self.frameCount < self.startFrame: 374 | skip = self.startFrame - self.frameCount 375 | self.frameCount = self.startFrame 376 | self.startFrame = None 377 | while skip > 0: 378 | sf = skip if skip < 1000 else 1000 379 | skip -= sf 380 | frames = self.wav.readframes(sf) 381 | if not frames: 382 | raise EOFError() 383 | 384 | if needed is not None and len(self.samples) >= needed: 385 | return # sufficient data available 386 | 387 | missing = self.samples.maxlen - len(self.samples) 388 | if missing <= 0: 389 | return # buffer is filled to maximum 390 | 391 | frames = self.wav.readframes(missing) 392 | if not frames: 393 | raise EOFError() 394 | 395 | for ix in range(0, len(frames), self.bytesPerFrame): 396 | self.samples.append(self.readFrame(frames[ix:ix+self.bytesPerFrame])) 397 | 398 | def advance(self, frames): 399 | """ Advance number of frames """ 400 | if frames == 0: 401 | return 402 | self.ensure(frames) 403 | for i in range(0, frames): 404 | self.samples.popleft() 405 | self.frameCount += frames 406 | if self.endFrame is not None and self.frameCount > self.endFrame: 407 | raise EOFError() 408 | if self.progress is not None: 409 | self.progress(self.frameCount, self.wav.getnframes()) 410 | 411 | def minMaxAvg(self, frames): 412 | """ Returns a tuple of minimum, maximum and average of given range """ 413 | self.ensure(frames) 414 | data = [self[i] for i in range(0, frames)] 415 | return (min(data), max(data), sum(data) / frames) 416 | 417 | def nextRaisingEdge(self): 418 | """ Finds the next raising edge """ 419 | self.ensure(2) 420 | while not (self[0] < 0 and self[1] >= 0): 421 | self.advance(1) 422 | self.ensure(2) 423 | self.advance(1) # position on the first positive value 424 | 425 | def toTStates(self, frames): 426 | """ Converts number of frames to T-States """ 427 | return int(frames * self.cpufreq / self.wav.getframerate()) 428 | 429 | def toMilliSeconds(self, frames): 430 | """ Converts number of frames to seconds """ 431 | return int(frames * 1000 / self.wav.getframerate()) 432 | 433 | def toFrames(self, tCycles): 434 | """ Converts T-States to number of frames """ 435 | return int(tCycles * self.wav.getframerate() / self.cpufreq) 436 | 437 | def _createReader(self): 438 | """ Returns a function that converts frame byte array to sample data """ 439 | channels = self.wav.getnchannels() 440 | bpc = self.wav.getsampwidth() 441 | if bpc == 2: 442 | if channels == 2: return lambda f: unpackStereo(f, 'h', self.leftChMix) 443 | elif channels == 1: return lambda f: unpackMono(f, 'h') 444 | else: raise IOError('Cannot handle WAV files with {} channels'.format(channels)) 445 | elif bpc == 1: 446 | if channels == 2: return lambda f: unpackStereo(f, 'b', self.leftChMix) * 256 447 | elif channels == 1: return lambda f: unpackMono(f, 'b') * 256 448 | else: raise IOError('Cannot handle WAV files with {} channels'.format(channels)) 449 | else: 450 | raise IOError('Cannot handle WAV files with {} bits per channel'.format(bpc * 8)) 451 | 452 | 453 | 454 | class TapCreator(): 455 | def __init__(self, callback=None): 456 | self.data = bytearray() 457 | self.crc = 0 458 | self.shifter = 0 459 | self.bits = 0 460 | self.callback = callback 461 | 462 | def shift(self, bit): 463 | """ Shifts in a bit """ 464 | self.shifter <<= 1 465 | if bit: self.shifter |= 1 466 | 467 | self.bits += 1 468 | if self.bits == 8: 469 | self.crc ^= self.shifter 470 | self.data.append(self.shifter) 471 | if self.callback is not None: 472 | self.callback(self.shifter, self.crc, len(self.data)) 473 | self.shifter = 0 474 | self.bits = 0 475 | 476 | def __len__(self): 477 | """ Current length of collected data, in bytes """ 478 | return len(self.data) 479 | 480 | def createTap(self): 481 | """ Creates a TapFile from the collected data """ 482 | return TapFile.create(self.data) 483 | 484 | 485 | 486 | class BadBlock(Exception): 487 | """ Cannot read this block, try the next one. """ 488 | pass 489 | -------------------------------------------------------------------------------- /tzxlib/saver.py: -------------------------------------------------------------------------------- 1 | # 2 | # tzxtools - a collection for processing tzx files 3 | # 4 | # Copyright (C) 2021 Richard "Shred" Körber 5 | # https://codeberg.org/shred/tzxtools 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, either version 3 of the License, or 10 | # (at your option) any later version. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | # GNU General Public License for more details. 16 | # 17 | # You should have received a copy of the GNU General Public License 18 | # along with this program. If not, see . 19 | # 20 | 21 | from tzxlib.tapfile import TapFile 22 | 23 | BYTE_ORDER = [0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01] 24 | 25 | class TapeSaver(): 26 | def __init__(self, cpufreq=3500000): 27 | self.cpufreq = cpufreq 28 | self.currentState = False 29 | 30 | def pulse(self, length): 31 | self.currentState = not self.currentState 32 | yield self.tStatesToNs(length) 33 | 34 | def tone(self, length, number): 35 | lstates = self.tStatesToNs(length) 36 | for _ in range(number // 2): 37 | yield lstates 38 | yield lstates 39 | if number % 2 == 1: 40 | self.currentState = not self.currentState 41 | yield lstates 42 | 43 | def saveTapFile(self, tap, pilotPulse=2168, syncHiPulse=667, syncLoPulse=735, 44 | zeroPulse=855, onePulse=1710, leaderTone=None, finalBits=8): 45 | # Generate leader tone 46 | if pilotPulse is not None: 47 | lpulse = self.tStatesToNs(pilotPulse) 48 | for _ in range(leaderTone if leaderTone is not None else tap.leaderCycles() // 2): 49 | yield lpulse 50 | yield lpulse 51 | 52 | # Generate sync pulse 53 | if syncHiPulse is not None: 54 | yield self.tStatesToNs(syncHiPulse) 55 | if syncLoPulse is not None: 56 | yield self.tStatesToNs(syncLoPulse) 57 | 58 | # Send all bits 59 | counter = finalBits 60 | lone = self.tStatesToNs(onePulse) 61 | lzero = self.tStatesToNs(zeroPulse) 62 | for i in range(len(tap.data)): 63 | b = tap.data[i] 64 | for m in BYTE_ORDER: 65 | if b & m != 0: 66 | yield lone 67 | yield lone 68 | else: 69 | yield lzero 70 | yield lzero 71 | if i == len(tap.data)-1: 72 | counter -= 1 73 | if counter <= 0: 74 | break 75 | 76 | def saveDirect(self, data, finalBits, tstates): 77 | if len(data) == 0: 78 | return 79 | counter = finalBits 80 | lstate = self.tStatesToNs(tstates) 81 | for i in range(len(data)): 82 | b = data[i] 83 | for m in BYTE_ORDER: 84 | newState = b & m != 0 85 | if newState == self.currentState: 86 | yield 0 87 | yield lstate 88 | self.currentState = newState 89 | if i == len(data)-1: 90 | counter -= 1 91 | if counter <= 0: 92 | break 93 | 94 | def pause(self, milliseconds): 95 | if milliseconds > 0: 96 | if not self.currentState: 97 | yield 0 98 | self.currentState = False 99 | yield milliseconds * 1000000 100 | 101 | def tStatesToNs(self, tstates): 102 | return tstates * 1000000000 // self.cpufreq 103 | -------------------------------------------------------------------------------- /tzxlib/tapfile.py: -------------------------------------------------------------------------------- 1 | # 2 | # tzxtools - a collection for processing tzx files 3 | # 4 | # Copyright (C) 2016 Richard "Shred" Körber 5 | # https://codeberg.org/shred/tzxtools 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, either version 3 of the License, or 10 | # (at your option) any later version. 11 | # 12 | # This program is distributed in the hope that it will be useful, 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | # GNU General Public License for more details. 16 | # 17 | # You should have received a copy of the GNU General Public License 18 | # along with this program. If not, see . 19 | # 20 | 21 | from struct import pack, unpack 22 | 23 | from tzxlib.convert import convert 24 | 25 | class TapFile(): 26 | def create(data): 27 | if len(data) == 19 and data[0] == 0x00: 28 | return TapHeader(data) 29 | else: 30 | return TapData(data) 31 | 32 | def valid(self): 33 | val = 0; 34 | for b in self.data: 35 | val ^= b 36 | return val == 0 37 | 38 | def body(self): 39 | return self.data[1:-1] 40 | 41 | def leaderCycles(self): 42 | return 3223 43 | 44 | def writeBody(self, out): 45 | out.write(self.body()) 46 | 47 | def write(self, tzx): 48 | tzx.write(self.data) 49 | 50 | def writeFragment(self, tzx): 51 | tzx.write(pack('. 19 | # 20 | 21 | from struct import pack, unpack 22 | import os 23 | 24 | from tzxlib.tapfile import TapFile 25 | from tzxlib.saver import TapeSaver 26 | 27 | class TzxbBlock(): 28 | blockTypes = { 29 | 0x10: lambda: TzxbData(), 30 | 0x11: lambda: TzxbTurboData(), 31 | 0x12: lambda: TzxbPureTone(), 32 | 0x13: lambda: TzxbPulseSequence(), 33 | 0x14: lambda: TzxbPureData(), 34 | 0x15: lambda: TzxbDirectRecording(), 35 | 0x16: lambda: TzxbC64Data(), 36 | 0x17: lambda: TzxbC64TurboData(), 37 | 0x18: lambda: TzxbCswRecording(), 38 | 0x19: lambda: TzxbGeneralizedData(), 39 | 0x20: lambda: TzxbPause(), 40 | 0x21: lambda: TzxbGroupStart(), 41 | 0x22: lambda: TzxbGroupEnd(), 42 | 0x23: lambda: TzxbJumpTo(), 43 | 0x24: lambda: TzxbLoopStart(), 44 | 0x25: lambda: TzxbLoopEnd(), 45 | 0x26: lambda: TzxbCallSequence(), 46 | 0x27: lambda: TzxbReturn(), 47 | 0x28: lambda: TzxbSelect(), 48 | 0x2A: lambda: TzxbStopTape48k(), 49 | 0x2B: lambda: TzxbSetSignalLevel(), 50 | 0x30: lambda: TzxbTextDescription(), 51 | 0x31: lambda: TzxbMessage(), 52 | 0x32: lambda: TzxbArchiveInfo(), 53 | 0x33: lambda: TzxbHardwareType(), 54 | 0x34: lambda: TzxbEmulationInfo(), 55 | 0x35: lambda: TzxbCustomInfo(), 56 | 0x40: lambda: TzxbSnapshot(), 57 | 0x4B: lambda: TzxbKansasCityStandard(), 58 | 0x5A: lambda: TzxbGlue(), 59 | } 60 | 61 | def createBlock(type): 62 | if not type in TzxbBlock.blockTypes: 63 | raise IOError('Unknown block type %02x' % (type)) 64 | clazz = TzxbBlock.blockTypes[type] 65 | return clazz() 66 | 67 | def __init__(self): 68 | self.data = bytearray() 69 | 70 | def read(self, tzx): 71 | self.data = tzx.read(0x04) 72 | len = unpack(' 2000 160 | and bits == 8): 161 | # Standard size and standard timing, convert to Standard Speed Data Block 162 | result = TzxbData() 163 | result.data = self.data[0x0D:0x11] 164 | result.tap = self.tap 165 | return result 166 | return self 167 | 168 | def dump(self): 169 | return self.tap.body() 170 | 171 | def playback(self, saver:TapeSaver): 172 | (pilot, sync1, sync2, zerobit, onebit, tone, bits) = unpack('. 19 | # 20 | 21 | import io 22 | from struct import unpack 23 | import sys 24 | 25 | from tzxlib.tapfile import TapFile 26 | from tzxlib.tzxblocks import TzxbBlock, TzxbData 27 | 28 | class TzxFile(): 29 | MAJOR = 1 30 | MINOR = 20 31 | 32 | def __init__(self): 33 | self._reset() 34 | 35 | def _reset(self): 36 | self.version = (TzxFile.MAJOR, TzxFile.MINOR) 37 | self.blocks = list() 38 | 39 | def read(self, input): 40 | self._reset() 41 | inf = input 42 | if isinstance(inf, io.TextIOWrapper): 43 | inf = inf.buffer 44 | with io.BufferedReader(inf) if isinstance(inf, io.IOBase) else open(inf, 'rb') as tzx: 45 | identifier = tzx.peek(8) 46 | if identifier[0:7].decode('ascii') != 'ZXTape!' or identifier[7] != 0x1A: 47 | self._readTap(tzx) 48 | else: 49 | self._readTzx(tzx) 50 | 51 | def write(self, output): 52 | outf = output 53 | if isinstance(outf, io.TextIOWrapper): 54 | outf = outf.buffer 55 | with outf if isinstance(outf, io.IOBase) else open(outf, 'wb') as tzx: 56 | self._writeHeader(tzx) 57 | for b in self.blocks: 58 | b.write(tzx) 59 | 60 | def _readTap(self, tap): 61 | self.version = (self.MAJOR, self.MINOR) 62 | while True: 63 | blockLen = tap.read(2) 64 | if not blockLen: break 65 | len = unpack('. 20 | # 21 | 22 | from struct import unpack 23 | 24 | def disassemble(data, pc, org=0): 25 | step = 0 26 | ix = False 27 | iy = False 28 | iindex = None 29 | 30 | while pc + step < len(data): 31 | op = data[pc + step] 32 | step += 1 33 | if op == 0xDD: 34 | op2 = data[pc + step] 35 | if op2 == 0x00: 36 | step += 1 37 | ins = "exit" # cspect emulator pseudo command 38 | break 39 | if op2 == 0x01: 40 | step += 1 41 | ins = "break" # cspect emulator pseudo command 42 | break 43 | ix = True 44 | iy = False 45 | elif op == 0xFD: 46 | iy = True 47 | ix = False 48 | elif op == 0xED: 49 | ix = False 50 | iy = False 51 | op = data[pc + step] 52 | step += 1 53 | ins = decodeEd(op) 54 | break 55 | elif op == 0xCB: 56 | if ix or iy: 57 | iindex = unpack('b', data[pc + step:pc + step + 1])[0] 58 | step += 1 59 | op = data[pc + step] 60 | step += 1 61 | if ix or iy: 62 | ins = decodeCbWithIndex(op) 63 | else: 64 | ins = decodeCb(op) 65 | break 66 | else: 67 | if op == 0xEB: 68 | ix = False 69 | iy = False 70 | ins = INSTRUCTIONS[op] 71 | break 72 | 73 | if ix: 74 | if '(HL)' in ins and ins != 'jp (HL)': 75 | if iindex is None: 76 | iindex = unpack('b', data[pc + step:pc + step + 1])[0] 77 | step += 1 78 | ins = ins.replace('(HL)', '(IX%+d)' % (iindex)) 79 | else: 80 | ins = ins.replace('HL', 'IX').replace('H', 'IXH').replace('L', 'IXL') 81 | ins = ins.replace('##', '**') 82 | 83 | if iy: 84 | if '(HL)' in ins and ins != 'jp (HL)': 85 | if iindex is None: 86 | iindex = unpack('b', data[pc + step:pc + step + 1])[0] 87 | step += 1 88 | ins = ins.replace('(HL)', '(IY%+d)' % (iindex)) 89 | else: 90 | ins = ins.replace('HL', 'IY').replace('H', 'IYH').replace('L', 'IYL') 91 | ins = ins.replace('##', '**') 92 | 93 | ins = ins.lower() 94 | 95 | if '$' in ins: 96 | val = unpack('B', data[pc + step:pc + step + 1])[0] 97 | ins = ins.replace('$', '$%02X' % (val)) 98 | step += 1 99 | 100 | if '^^' in ins: 101 | raw = data[pc + step:pc + step + 2] 102 | if -2048 <= unpack('>h', raw)[0] <= 2048: 103 | ins = ins.replace('^^', '%d' % (unpack('>h', raw)[0])) 104 | else: 105 | ins = ins.replace('^^', '$%04X' % (unpack('>H', raw)[0])) 106 | step += 2 107 | 108 | if '##' in ins: 109 | raw = data[pc + step:pc + step + 2] 110 | if -2048 <= unpack(' 16 bit signed decimal 191 | # # -> 8 bit signed decimal 192 | # ** -> 16 bit unsigned hex 193 | # * -> 8 bit unsigned hex 194 | # % -> 8 bit relative address 195 | # $ -> 8 bit ZX Spectrum Next register address 196 | # ^^ -> 16 bit signed decimal, big endian (ZX Spectrum Next proprietary) 197 | 198 | INSTRUCTIONS = [ 199 | 'nop', # 00 200 | 'ld BC,##', # 01 201 | 'ld (BC),A', # 02 202 | 'inc BC', # 03 203 | 'inc B', # 04 204 | 'dec B', # 05 205 | 'ld B,#', # 06 206 | 'rlca', # 07 207 | "ex AF,AF'", # 08 208 | 'add HL,BC', # 09 209 | 'ld A,(BC)', # 0A 210 | 'dec BC', # 0B 211 | 'inc C', # 0C 212 | 'dec C', # 0D 213 | 'ld C,#', # 0E 214 | 'rrca', # 0F 215 | 'djnz %', # 10 216 | 'ld DE,##', # 11 217 | 'ld (DE),A', # 12 218 | 'inc DE', # 13 219 | 'inc D', # 14 220 | 'dec D', # 15 221 | 'ld D,#', # 16 222 | 'rla', # 17 223 | 'jr %', # 18 224 | 'add HL,DE', # 19 225 | 'ld A,(DE)', # 1A 226 | 'dec DE', # 1B 227 | 'inc E', # 1C 228 | 'dec E', # 1D 229 | 'ld E,#', # 1E 230 | 'rra', # 1F 231 | 'jr nz,%', # 20 232 | 'ld HL,##', # 21 233 | 'ld (**),HL', # 22 234 | 'inc HL', # 23 235 | 'inc H', # 24 236 | 'dec H', # 25 237 | 'ld H,#', # 26 238 | 'daa', # 27 239 | 'jr z,%', # 28 240 | 'add HL,HL', # 29 241 | 'ld HL,(**)', # 2A 242 | 'dec HL', # 2B 243 | 'inc L', # 2C 244 | 'dec L', # 2D 245 | 'ld L,#', # 2E 246 | 'cpl', # 2F 247 | 'jr nc,%', # 30 248 | 'ld SP,**', # 31 249 | 'ld (**),A', # 32 250 | 'inc SP', # 33 251 | 'inc (HL)', # 34 252 | 'dec (HL)', # 35 253 | 'ld (HL),#', # 36 254 | 'scf', # 37 255 | 'jr c,%', # 38 256 | 'add HL,SP', # 39 257 | 'ld A,(**)', # 3A 258 | 'dec SP', # 3B 259 | 'inc A', # 3C 260 | 'dec A', # 3D 261 | 'ld A,#', # 3E 262 | 'ccf', # 3F 263 | 'ld B,B', # 40 264 | 'ld B,C', # 41 265 | 'ld B,D', # 42 266 | 'ld B,E', # 43 267 | 'ld B,H', # 44 268 | 'ld B,L', # 45 269 | 'ld B,(HL)', # 46 270 | 'ld B,A', # 47 271 | 'ld C,B', # 48 272 | 'ld C,C', # 49 273 | 'ld C,D', # 4A 274 | 'ld C,E', # 4B 275 | 'ld C,H', # 4C 276 | 'ld C,L', # 4D 277 | 'ld C,(HL)', # 4E 278 | 'ld C,A', # 4F 279 | 'ld D,B', # 50 280 | 'ld D,C', # 51 281 | 'ld D,D', # 52 282 | 'ld D,E', # 53 283 | 'ld D,H', # 54 284 | 'ld D,L', # 55 285 | 'ld D,(HL)', # 56 286 | 'ld D,A', # 57 287 | 'ld E,B', # 58 288 | 'ld E,C', # 59 289 | 'ld E,D', # 5A 290 | 'ld E,E', # 5B 291 | 'ld E,H', # 5C 292 | 'ld E,L', # 5D 293 | 'ld E,(HL)', # 5E 294 | 'ld E,A', # 5F 295 | 'ld H,B', # 60 296 | 'ld H,C', # 61 297 | 'ld H,D', # 62 298 | 'ld H,E', # 63 299 | 'ld H,H', # 64 300 | 'ld H,L', # 65 301 | 'ld H,(HL)', # 66 302 | 'ld H,A', # 67 303 | 'ld L,B', # 68 304 | 'ld L,C', # 69 305 | 'ld L,D', # 6A 306 | 'ld L,E', # 6B 307 | 'ld L,H', # 6C 308 | 'ld L,L', # 6D 309 | 'ld L,(HL)', # 6E 310 | 'ld L,A', # 6F 311 | 'ld (HL),B', # 70 312 | 'ld (HL),C', # 71 313 | 'ld (HL),D', # 72 314 | 'ld (HL),E', # 73 315 | 'ld (HL),H', # 74 316 | 'ld (HL),L', # 75 317 | 'halt', # 76 318 | 'ld (HL),A', # 77 319 | 'ld A,B', # 78 320 | 'ld A,C', # 79 321 | 'ld A,D', # 7A 322 | 'ld A,E', # 7B 323 | 'ld A,H', # 7C 324 | 'ld A,L', # 7D 325 | 'ld A,(HL)', # 7E 326 | 'ld A,A', # 7F 327 | 'add A,B', # 80 328 | 'add A,C', # 81 329 | 'add A,D', # 82 330 | 'add A,E', # 83 331 | 'add A,H', # 84 332 | 'add A,L', # 85 333 | 'add A,(HL)', # 86 334 | 'add A,A', # 87 335 | 'adc A,B', # 88 336 | 'adc A,C', # 89 337 | 'adc A,D', # 8A 338 | 'adc A,E', # 8B 339 | 'adc A,H', # 8C 340 | 'adc A,L', # 8D 341 | 'adc A,(HL)', # 8E 342 | 'adc A,A', # 8F 343 | 'sub B', # 90 344 | 'sub C', # 91 345 | 'sub D', # 92 346 | 'sub E', # 93 347 | 'sub H', # 94 348 | 'sub L', # 95 349 | 'sub (HL)', # 96 350 | 'sub A', # 97 351 | 'sbc A,B', # 98 352 | 'sbc A,C', # 99 353 | 'sbc A,D', # 9A 354 | 'sbc A,E', # 9B 355 | 'sbc A,H', # 9C 356 | 'sbc A,L', # 9D 357 | 'sbc A,(HL)', # 9E 358 | 'sbc A,A', # 9F 359 | 'and B', # A0 360 | 'and C', # A1 361 | 'and D', # A2 362 | 'and E', # A3 363 | 'and H', # A4 364 | 'and L', # A5 365 | 'and (HL)', # A6 366 | 'and A', # A7 367 | 'xor B', # A8 368 | 'xor C', # A9 369 | 'xor D', # AA 370 | 'xor E', # AB 371 | 'xor H', # AC 372 | 'xor L', # AD 373 | 'xor (HL)', # AE 374 | 'xor A', # AF 375 | 'or B', # B0 376 | 'or C', # B1 377 | 'or D', # B2 378 | 'or E', # B3 379 | 'or H', # B4 380 | 'or L', # B5 381 | 'or (HL)', # B6 382 | 'or A', # B7 383 | 'cp B', # B8 384 | 'cp C', # B9 385 | 'cp D', # BA 386 | 'cp E', # BB 387 | 'cp H', # BC 388 | 'cp L', # BD 389 | 'cp (HL)', # BE 390 | 'cp A', # BF 391 | 'ret nz', # C0 392 | 'pop BC', # C1 393 | 'jp nz,**', # C2 394 | 'jp **', # C3 395 | 'call nz,**', # C4 396 | 'push BC', # C5 397 | 'add A,#', # C6 398 | 'rst 00h', # C7 399 | 'ret z', # C8 400 | 'ret', # C9 401 | 'jp z,**', # CA 402 | None, # CB: Bit operations 403 | 'call z,**', # CC 404 | 'call **', # CD 405 | 'adc A,#', # CE 406 | 'rst 08h', # CF 407 | 'ret nc', # D0 408 | 'pop DE', # D1 409 | 'jp nc,**', # D2 410 | 'out (*),A', # D3 411 | 'call nc,**', # D4 412 | 'push DE', # D5 413 | 'sub #', # D6 414 | 'rst 10h', # D7 415 | 'ret c', # D8 416 | 'exx', # D9 417 | 'jp c,**', # DA 418 | 'in A,(*)', # DB 419 | 'call c,**', # DC 420 | None, # DD: IX registers 421 | 'sbc A,#', # DE 422 | 'rst 18h', # DF 423 | 'ret po', # E0 424 | 'pop HL', # E1 425 | 'jp po,**', # E2 426 | 'ex (SP),HL', # E3 427 | 'call po,**', # E4 428 | 'push HL', # E5 429 | 'and *', # E6 430 | 'rst 20h', # E7 431 | 'ret pe', # E8 432 | 'jp (HL)', # E9 433 | 'jp pe,**', # EA 434 | 'ex DE,HL', # EB 435 | 'call pe,**', # EC 436 | None, # ED: Extended instructions 437 | 'xor *', # EE 438 | 'rst 28h', # EF 439 | 'ret p', # F0 440 | 'pop AF', # F1 441 | 'jp p,**', # F2 442 | 'di', # F3 443 | 'call p,**', # F4 444 | 'push AF', # F5 445 | 'or *', # F6 446 | 'rst 30h', # F7 447 | 'ret m', # F8 448 | 'ld SP,HL', # F9 449 | 'jp m,**', # FA 450 | 'ei', # FB 451 | 'call m,**', # FC 452 | None, # FD: IY registers 453 | 'cp #', # FE 454 | 'rst 38h' # FF 455 | ] 456 | 457 | # These are ZX Spectrum Next proprietary op codes! 458 | INSTRUCTIONS_ED_2 = [ 459 | None, # 20 460 | None, # 21 461 | None, # 22 462 | 'swapnib', # 23 463 | 'mirror A', # 24 464 | None, # 25 465 | None, # 26 466 | 'test #', # 27 467 | 'bsla DE,B', # 28 468 | 'bsra DE,B', # 29 469 | 'bsrl DE,B', # 2A 470 | 'bsrf DE,B', # 2B 471 | 'brlc DE,B', # 2C 472 | None, # 2D 473 | None, # 2E 474 | None, # 2F 475 | 'mul D,E', # 30 476 | 'add HL,A', # 31 477 | 'add DE,A', # 32 478 | 'add BC,A', # 33 479 | 'add HL,##', # 34 480 | 'add DE,##', # 35 481 | 'add BC,##', # 36 482 | None, # 37 483 | None, # 38 484 | None, # 39 485 | None, # 3A 486 | None, # 3B 487 | None, # 3C 488 | None, # 3D 489 | None, # 3E 490 | None, # 3F 491 | ] 492 | 493 | INSTRUCTIONS_ED_4 = [ 494 | 'in B,(C)', # 40 495 | 'out (C),B', # 41 496 | 'sbc HL,BC', # 42 497 | 'ld (**),BC', # 43 498 | 'neg', # 44 499 | 'retn', # 45 500 | 'im 0', # 46 501 | 'ld I,A', # 47 502 | 'in C,(C)', # 48 503 | 'out (C),C', # 49 504 | 'adc HL,BC', # 4A 505 | 'ld BC,(**)', # 4B 506 | 'neg', # 4C Illegal opcode 507 | 'reti', # 4D 508 | None, # 4E 509 | 'ld R,A', # 4F 510 | 'in D,(C)', # 50 511 | 'out (C),D', # 51 512 | 'sbc HL,DE', # 52 513 | 'ld (**),DE', # 53 514 | 'neg', # 54 Illegal opcode 515 | 'retn', # 55 516 | 'im 1', # 56 517 | 'ld A,I', # 57 518 | 'in E,(C)', # 58 519 | 'out (C),E', # 59 520 | 'adc HL,DE', # 5A 521 | 'ld DE,(**)', # 5B 522 | 'neg', # 5C Illegal opcode 523 | 'retn', # 5D 524 | 'im 2', # 5E 525 | 'ld A,R', # 5F 526 | 'in H,(C)', # 60 527 | 'out (C),H', # 61 528 | 'sbc HL,HL', # 62 529 | 'ld (**),HL', # 63 Illegal opcode 530 | 'neg', # 64 Illegal opcode 531 | 'retn', # 65 532 | 'im 0', # 66 533 | 'rrd', # 67 534 | 'in L,(C)', # 68 535 | 'out (C),L', # 69 536 | 'adc HL,HL', # 6A 537 | 'ld HL,(**)', # 6B Illegal opcode 538 | 'neg', # 6C Illegal opcode 539 | 'retn', # 6D 540 | None, # 6E 541 | 'rld', # 6F 542 | 'in (C)', # 70 Illegal opcode 543 | 'out (C),0', # 71 Illegal opcode 544 | 'sbc HL,SP', # 72 545 | 'ld (**),SP', # 73 546 | 'neg', # 74 Illegal opcode 547 | 'retn', # 75 548 | 'im 1', # 76 549 | None, # 77 550 | 'in A,(C)', # 78 551 | 'out (C),A', # 79 552 | 'adc HL,SP', # 7A 553 | 'ld SP,(**)', # 7B 554 | 'neg', # 7C Illegal opcode 555 | 'retn', # 7D 556 | 'im 2', # 7E 557 | None, # 7F 558 | ] 559 | 560 | # These are ZX Spectrum Next proprietary op codes! 561 | INSTRUCTIONS_ED_9 = [ 562 | 'outinb', # 90 563 | 'nextreg $,#', # 91 564 | 'nextreg $,A', # 92 565 | 'pixeldn', # 93 566 | 'pixelad', # 94 567 | 'setae', # 95 568 | None, # 96 569 | None, # 97 570 | 'jp (C)', # 98 571 | None, # 99 572 | None, # 9A 573 | None, # 9B 574 | None, # 9C 575 | None, # 9D 576 | None, # 9E 577 | None, # 9F 578 | ] 579 | 580 | INSTRUCTIONS_ED_A = [ 581 | 'ldi', # A0 582 | 'cpi', # A1 583 | 'ini', # A2 584 | 'outi', # A3 585 | 'ldix', # A4 - ZX Spectrum Next op code 586 | 'ldws', # A5 - ZX Spectrum Next op code 587 | None, # A6 588 | None, # A7 589 | 'ldd', # A8 590 | 'cpd', # A9 591 | 'ind', # AA 592 | 'outd', # AB 593 | 'lddx', # AC - ZX Spectrum Next op code 594 | None, # AD 595 | None, # AE 596 | None, # AF 597 | 'ldir', # B0 598 | 'cpir', # B1 599 | 'inir', # B2 600 | 'otir', # B3 601 | 'ldirx', # B4 - ZX Spectrum Next op code 602 | None, # B5 603 | "ldirscale", # B6 - ZX Spectrum Next op code (considered) 604 | 'ldpirx', # B7 - ZX Spectrum Next op code 605 | 'lddr', # B8 606 | 'cpdr', # B9 607 | 'indr', # BA 608 | 'otdr', # BB 609 | 'lddrx', # BC - ZX Spectrum Next op code 610 | None, # BD 611 | None, # BE 612 | None, # BF 613 | ] 614 | 615 | INSTRUCTIONS_CB = [ 616 | 'rlc', 617 | 'rrc', 618 | 'rl', 619 | 'rr', 620 | 'sla', 621 | 'sra', 622 | 'sll', # Illegal opcode 623 | 'srl', 624 | ] 625 | 626 | REGISTER = [ 627 | 'B', 'C', 'D', 'E', 'H', 'L', '(HL)', 'A' 628 | ] 629 | -------------------------------------------------------------------------------- /tzxtools/__init__.py: -------------------------------------------------------------------------------- 1 | name = "tzxtools" 2 | -------------------------------------------------------------------------------- /tzxtools/tzxcat.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2018 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import io 24 | import sys 25 | 26 | from tzxlib.tzxfile import TzxFile 27 | from tzxlib.tapfile import TapHeader 28 | from tzxlib.convert import convertToText 29 | from tzxlib.convert import convertToBasic 30 | from tzxlib.convert import convertToDump 31 | from tzxlib.convert import convertToAssembler 32 | from tzxlib.convert import convertToScreen 33 | 34 | def writeBlock(out, dump, converter, skip, length, org): 35 | if skip: 36 | if 0 <= skip < len(dump): 37 | dump = dump[skip:] 38 | else: 39 | dump = [] 40 | if length: 41 | if 0 <= length < len(dump): 42 | dump = dump[:length] 43 | if converter: 44 | dump = converter(dump, out, org) 45 | return dump 46 | 47 | def writeSingleBlock(tzx, out, index, writer, skipNotDumpable=False): 48 | if index < 0 or index >= len(tzx.blocks): 49 | print('Error: Block %d out of range' % (index), file=sys.stderr) 50 | exit(1) 51 | b = tzx.blocks[index] 52 | d = b.dump() 53 | if d is None: 54 | if skipNotDumpable: 55 | return 56 | else: 57 | print('Error: Block %d has no data content' % (index), file=sys.stderr) 58 | exit(1) 59 | if hasattr(b, 'tap') and not b.tap.valid(): 60 | print('Warning: Block %d has bad CRC' % (index), file=sys.stderr) 61 | writer(out, d, findOrg(tzx, index)) 62 | 63 | def writeAllBlocks(tzx, out, writer): 64 | for i in range(len(tzx.blocks)): 65 | writeSingleBlock(tzx, out, i, writer, True) 66 | 67 | def findOrg(tzx, index): 68 | if index > 1: 69 | b = tzx.blocks[index - 1] 70 | if hasattr(b, 'tap'): 71 | if isinstance(b.tap, TapHeader) and b.tap.typeId() == 3: 72 | return b.tap.param1() 73 | return None 74 | 75 | def main(): 76 | parser = argparse.ArgumentParser(description='Write data block content') 77 | parser.add_argument('file', 78 | nargs='?', 79 | type=argparse.FileType('rb'), 80 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 81 | help='TZX file, stdin if omitted') 82 | parser.add_argument('-b', '--block', 83 | dest='block', 84 | type=int, 85 | metavar='NR', 86 | help='block number to cat') 87 | parser.add_argument('-o', '--to', 88 | dest='to', 89 | metavar='TARGET', 90 | type=argparse.FileType('wb'), 91 | default=sys.stdout.buffer, 92 | help='target file, stdout if omitted') 93 | parser.add_argument('-s', '--skip', 94 | dest='skip', 95 | type=int, 96 | metavar='BYTES', 97 | help='skip the given number of bytes before output') 98 | parser.add_argument('-l', '--length', 99 | dest='length', 100 | type=int, 101 | metavar='BYTES', 102 | help='limit output to the given number of bytes') 103 | parser.add_argument('-t', '--text', 104 | dest='text', 105 | action='store_true', 106 | help='convert ZX Spectrum text to plain text') 107 | parser.add_argument('-B', '--basic', 108 | dest='basic', 109 | action='store_true', 110 | help='convert ZX Spectrum BASIC to plain text') 111 | parser.add_argument('-A', '--assembler', 112 | dest='assembler', 113 | action='store_true', 114 | help='disassemble Z80 code') 115 | parser.add_argument('-S', '--screen', 116 | dest='screen', 117 | action='store_true', 118 | help='convert a ZX Spectrum SCREEN$ to PNG') 119 | parser.add_argument('-d', '--dump', 120 | dest='dump', 121 | action='store_true', 122 | help='convert to a hex dump') 123 | parser.add_argument('-O', '--org', 124 | dest='org', 125 | type=int, 126 | metavar='BASE', 127 | help='base address for disassembled code') 128 | args = parser.parse_args() 129 | 130 | if args.file is None: 131 | parser.print_help(sys.stderr) 132 | sys.exit(1) 133 | 134 | file = TzxFile() 135 | file.read(args.file) 136 | 137 | converter = lambda data, out, org: out.write(data) # default binary output 138 | if args.basic: 139 | converter = convertToBasic 140 | elif args.assembler: 141 | converter = convertToAssembler 142 | elif args.screen: 143 | converter = convertToScreen 144 | elif args.text: 145 | converter = convertToText 146 | elif args.dump: 147 | converter = convertToDump 148 | 149 | writer = lambda out, dump, org : writeBlock(out, dump, converter, args.skip, args.length, args.org or org or 0) 150 | 151 | outf = args.to if args.to != '-' else sys.stdout.buffer 152 | with outf if isinstance(outf, io.IOBase) else open(outf, 'wb') as out: 153 | if args.block != None: 154 | writeSingleBlock(file, out, args.block, writer) 155 | else: 156 | writeAllBlocks(file, out, writer) 157 | -------------------------------------------------------------------------------- /tzxtools/tzxcleanup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import sys 24 | 25 | from tzxlib.tzxfile import TzxFile 26 | from tzxlib.tapfile import TapHeader 27 | 28 | def main(): 29 | parser = argparse.ArgumentParser(description='Remove all noise, idealize the data') 30 | parser.add_argument('file', 31 | nargs='?', 32 | type=argparse.FileType('rb'), 33 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 34 | help='TZX file, stdin if omitted') 35 | parser.add_argument('-o', '--to', 36 | dest='to', 37 | metavar='TARGET', 38 | type=argparse.FileType('wb'), 39 | default=sys.stdout.buffer, 40 | help='target TZX file, stdout if omitted') 41 | parser.add_argument('-c', '--stripcrc', 42 | dest='stripcrc', 43 | action='store_true', 44 | help='also remove blocks with bad CRC') 45 | parser.add_argument('-H', '--headermustmatch', 46 | dest='headermustmatch', 47 | action='store_true', 48 | help='Remove blocks not preceeded by matching header (keep only matching header-block pairs)') 49 | args = parser.parse_args() 50 | 51 | if args.file is None: 52 | parser.print_help(sys.stderr) 53 | sys.exit(1) 54 | 55 | fout = TzxFile() 56 | crcCnt = 0 57 | noiseCnt = 0 58 | headerlessCnt = 0 59 | 60 | file = TzxFile() 61 | file.read(args.file) 62 | blocklengthfromheader = 0 63 | for b in file.blocks: 64 | # Convert Turbo blocks to standard timed blocks if possible 65 | if b.id == 0x11: 66 | b = b.asData() 67 | 68 | # when args.headermustmatch keep last header found 69 | if args.headermustmatch and b.id == 0x10 and b.valid() and isinstance(b.tap, TapHeader): 70 | if blocklengthfromheader != 0: 71 | # header after header makes the first one a orphan header 72 | print("Orphan header: {} ({})".format(lastheader.tap.name(), blocklengthfromheader), file=sys.stderr) 73 | headerlessCnt = headerlessCnt + 1 74 | lastheader = b 75 | blocklengthfromheader = lastheader.tap.length() 76 | continue 77 | 78 | # Use all data blocks for the output 79 | if b.id in [0x10, 0x11, 0x14]: 80 | if not b.valid(): 81 | crcCnt += 1 82 | if b.valid() or not args.stripcrc: 83 | if args.headermustmatch: 84 | if blocklengthfromheader == len(b.tap.data) - 2 and not isinstance(b.tap, TapHeader): 85 | # this is a datablock with matching header 86 | fout.blocks.append(lastheader) # write header only now 87 | fout.blocks.append(b) 88 | blocklengthfromheader = 0 89 | else: 90 | # as before. 91 | fout.blocks.append(b) 92 | if blocklengthfromheader != 0: 93 | print("Orphan header: {} ({})".format(lastheader.tap.name().strip(), blocklengthfromheader), file=sys.stderr) 94 | headerlessCnt = headerlessCnt + 1 95 | blocklengthfromheader = 0 96 | continue 97 | 98 | blocklengthfromheader = 0 99 | 100 | # Use all pause blocks if they mean "stop the tape" 101 | if b.id in [0x20, 0x2A]: 102 | if b.id != 0x20 or b.length() == 0: 103 | fout.blocks.append(b) 104 | continue 105 | 106 | # Use all meta blocks 107 | if b.id not in [0x12, 0x13, 0x15, 0x18, 0x19]: 108 | fout.blocks.append(b) 109 | continue 110 | 111 | noiseCnt += 1 112 | 113 | fout.write(args.to) 114 | 115 | print('Blocks found: %3d' % (len(file.blocks)), file=sys.stderr) 116 | print('Noise blocks removed: %3d' % (noiseCnt), file=sys.stderr) 117 | print('Blocks with CRC errors: %3d' % (crcCnt), file=sys.stderr) 118 | if args.headermustmatch: 119 | print('Skipped headerless blocks: %3d' % (headerlessCnt), file=sys.stderr) 120 | print('Blocks written: %3d' % (len(fout.blocks)), file=sys.stderr) 121 | -------------------------------------------------------------------------------- /tzxtools/tzxcut.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import os.path 24 | import re 25 | import sys 26 | 27 | from tzxlib.tapfile import TapHeader 28 | from tzxlib.tzxfile import TzxFile 29 | 30 | def appendRange(ranges, v1, v2, lastBlock): 31 | if v1 < 0: v1 += lastBlock 32 | if v1 < 0: v1 = 0 33 | if v2 < 0: v2 += lastBlock 34 | if v2 < 0: v2 = 0 35 | ranges.append((v1, v2)) 36 | 37 | def isInRange(ranges, num): 38 | for rng in ranges: 39 | if num >= rng[0] and num <= rng[1]: 40 | return True 41 | return False 42 | 43 | def main(): 44 | parser = argparse.ArgumentParser(description='Split into separate programs') 45 | parser.add_argument('blocks', 46 | nargs='*', 47 | help='block numbers or ranges to keep (range limits are separated by colon)') 48 | parser.add_argument('-i', '--from', 49 | dest='file', 50 | metavar='SOURCE', 51 | type=argparse.FileType('rb'), 52 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 53 | help='source TZX file, stdin if omitted') 54 | parser.add_argument('-o', '--to', 55 | dest='to', 56 | metavar='TARGET', 57 | type=argparse.FileType('wb'), 58 | default=sys.stdout.buffer, 59 | help='target TZX file, stdout if omitted') 60 | parser.add_argument('-v', '--invert', 61 | dest='invert', 62 | action='store_true', 63 | help='do not keep, but remove the blocks') 64 | args = parser.parse_args() 65 | 66 | if args.file is None: 67 | parser.print_help(sys.stderr) 68 | sys.exit(1) 69 | 70 | file = TzxFile() 71 | file.read(args.file) 72 | lastBlock = len(file.blocks) 73 | 74 | ranges = [] 75 | for rng in args.blocks: 76 | m = re.match(r'^(-?\d+)$', rng) 77 | if m: 78 | v1 = int(m.group(1)) 79 | appendRange(ranges, v1, v1, lastBlock) 80 | continue 81 | m = re.match(r'^(-?\d+):(-?\d+)$', rng) 82 | if m: 83 | v1 = int(m.group(1)) 84 | v2 = int(m.group(2)) 85 | appendRange(ranges, v1, v2, lastBlock) 86 | continue 87 | m = re.match(r'^(-?\d+):$', rng) 88 | if m: 89 | v1 = int(m.group(1)) 90 | appendRange(ranges, v1, lastBlock, lastBlock) 91 | continue 92 | m = re.match(r'^:(-?\d+)$', rng) 93 | if m: 94 | v2 = int(m.group(1)) 95 | appendRange(ranges, 0, v2, lastBlock) 96 | continue 97 | print('Illegal range: %s' % (rng), file=sys.stderr) 98 | exit(1) 99 | 100 | fout = TzxFile() 101 | 102 | count = 0 103 | for b in file.blocks: 104 | if isInRange(ranges, count) != args.invert: 105 | fout.blocks.append(b) 106 | count += 1 107 | 108 | fout.write(args.to) 109 | -------------------------------------------------------------------------------- /tzxtools/tzxls.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import io 24 | import sys 25 | import textwrap 26 | 27 | from tzxlib.tapfile import TapHeader 28 | from tzxlib.tzxfile import TzxFile 29 | 30 | def main(): 31 | parser = argparse.ArgumentParser(description='List the contents of a TZX file') 32 | parser.add_argument('file', 33 | nargs=argparse.REMAINDER, 34 | type=argparse.FileType('rb'), 35 | help='TZX files, stdin if omitted') 36 | parser.add_argument('-s', '--short', 37 | dest='short', 38 | action='store_true', 39 | help='list only the ZX Spectrum header names') 40 | parser.add_argument('-v', '--verbose', 41 | dest='verbose', 42 | action='store_true', 43 | help='show content of information blocks') 44 | args = parser.parse_args() 45 | 46 | files = list(args.file) 47 | if not sys.stdin.isatty() and len(files) == 0: 48 | files.append(sys.stdin.buffer) 49 | 50 | if len(files) == 0: 51 | parser.print_help(sys.stderr) 52 | sys.exit(1) 53 | 54 | for f in files: 55 | if len(files) > 1: 56 | name = f.name if hasattr(f, 'name') else f 57 | print('\n%s:' % (name)) 58 | tzx = TzxFile() 59 | tzx.read(f) 60 | 61 | cnt = 0 62 | for b in tzx.blocks: 63 | if args.short: 64 | if hasattr(b, 'tap') and isinstance(b.tap, TapHeader): 65 | print('%s: %s' % (b.tap.type(), b.tap.name())) 66 | else: 67 | print('%3d %-27s %s' % (cnt, b.type, str(b))) 68 | if args.verbose: 69 | info = b.info() 70 | if info is not None: 71 | print(textwrap.indent(info.strip(), '\t')) 72 | cnt += 1 73 | -------------------------------------------------------------------------------- /tzxtools/tzxmerge.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import sys 24 | 25 | from tzxlib.tzxfile import TzxFile 26 | 27 | def main(): 28 | parser = argparse.ArgumentParser(description='Merges TZX files') 29 | parser.add_argument('files', 30 | nargs='+', 31 | type=argparse.FileType('rb'), 32 | default=sys.stdin.buffer, 33 | help='TZX files to merge') 34 | parser.add_argument('-o', '--to', 35 | metavar='TARGET', 36 | type=argparse.FileType('wb'), 37 | default=sys.stdout.buffer, 38 | help='target TZX file, stdout if omitted') 39 | args = parser.parse_args() 40 | 41 | file = TzxFile() 42 | 43 | for f in args.files: 44 | mergeFile = TzxFile() 45 | mergeFile.read(f) 46 | file.blocks.extend(mergeFile.blocks) 47 | 48 | file.write(args.to) 49 | -------------------------------------------------------------------------------- /tzxtools/tzxplay.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2021 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | from math import sin, pi 24 | import numpy 25 | import sounddevice as sd 26 | import struct 27 | import sys 28 | import time 29 | import wave 30 | 31 | from tzxlib.tapfile import TapHeader 32 | from tzxlib.tzxfile import TzxFile 33 | from tzxlib.tzxblocks import TzxbLoopStart, TzxbLoopEnd, TzxbJumpTo, TzxbPause, TzxbStopTape48k 34 | from tzxlib.saver import TapeSaver 35 | 36 | 37 | wavelets = {} 38 | silence = bytes(2048) 39 | numpySilence = numpy.zeros(1024, dtype=numpy.float32) 40 | 41 | 42 | def wavelet(length, level, sine=False, npy=False): 43 | type = (length, level) 44 | if type in wavelets: 45 | return wavelets[type] 46 | 47 | sign = 1 if level else -1 48 | 49 | if npy: 50 | amp = sign * (min(32767 * (length + 10) / 25, 32767) if sine else 32000) / 32767 51 | wave = numpy.empty(length, dtype=numpy.float32) 52 | for pos in range(length): 53 | wave[pos] = amp * sin(pos * pi / length) if sine else amp 54 | wavelets[type] = wave 55 | 56 | else: 57 | amp = sign * (min(32767 * (length + 10) / 25, 32767) if sine else 32000) 58 | wave = bytearray(length*2) 59 | for pos in range(length): 60 | value = int(amp * sin(pos * pi / length) if sine else amp) 61 | wave[pos*2:pos*2+2] = struct.pack(' 0: 91 | block = repeatBlock 92 | if verbose: 93 | print(' - returning to block %d (remaining %d)' % (block, repeatCount)) 94 | else: 95 | repeatBlock = None 96 | repeatCount = None 97 | if verbose: 98 | print(' - loop is finished') 99 | continue 100 | elif isinstance(b, TzxbJumpTo): 101 | block += b.relative()-1 102 | if block < 0 or block > len(tzx.blocks)-1: 103 | raise IndexError('Jump to non-existing block') 104 | if verbose: 105 | print(' - jumping to block %d' % (block)) 106 | continue 107 | elif isinstance(b, TzxbPause) and b.stopTheTape() and stopAlways: 108 | if verbose: 109 | print(' - tape stopped') 110 | break 111 | elif isinstance(b, TzxbStopTape48k) and stop48k: 112 | if verbose: 113 | print(' - tape stopped (48k mode)') 114 | break 115 | 116 | currentLevel = False 117 | lastLevel = False 118 | for ns in b.playback(saver): 119 | currentLevel = not currentLevel 120 | if ns > 0: 121 | realTimeNs += ns 122 | newSampleTime = ((realTimeNs * rate) + 500000000) // 1000000000 123 | wavelen = newSampleTime - currentSampleTime 124 | if wavelen <= 0: 125 | continue 126 | if currentLevel != lastLevel: 127 | yield wavelet(wavelen, currentLevel, sine, npy) 128 | else: 129 | while wavelen > 0: 130 | if wavelen >= len(silence)//2: 131 | yield numpySilence if npy else silence 132 | wavelen -= len(silence)//2 133 | else: 134 | yield numpy.zeros(wavelen, dtype=numpy.float32) if npy else silence[0:wavelen*2] 135 | wavelen = 0 136 | lastLevel = currentLevel 137 | currentSampleTime = newSampleTime 138 | if verbose: 139 | millis = realTimeNs // 1000000 140 | seconds = millis // 1000 141 | minutes = seconds // 60 142 | print('%02d:%02d.%03d End of Recording' % (minutes, seconds%60, millis%1000)) 143 | 144 | 145 | def main(): 146 | parser = argparse.ArgumentParser(description='Playback a tzx file') 147 | parser.add_argument('file', 148 | nargs='?', 149 | type=argparse.FileType('rb'), 150 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 151 | help='TZX file, stdin if omitted') 152 | parser.add_argument('-o', '--to', 153 | dest='to', 154 | metavar='TARGET', 155 | type=argparse.FileType('wb'), 156 | default=None, 157 | help='Create WAV file instead of playing audio') 158 | parser.add_argument('-v', '--verbose', 159 | dest='verbose', 160 | action='store_true', 161 | help='Be verbose about what you are doing') 162 | parser.add_argument('-s', '--stop', 163 | dest='stop', 164 | action='store_true', 165 | help='Execute Stop-The-Tape commands') 166 | parser.add_argument('-K', '--48k', 167 | dest='mode48k', 168 | action='store_true', 169 | help='Enable ZX Spectrum 48K mode') 170 | parser.add_argument('-r', '--rate', 171 | dest='rate', 172 | default=44100, 173 | type=int, 174 | help='Output sample rate') 175 | parser.add_argument('-c', '--clock', 176 | dest='clock', 177 | default=3500000, 178 | type=int, 179 | help='Reference Z80 CPU clock, in Hz') 180 | parser.add_argument('-S', '--sine', 181 | dest='sine', 182 | action='store_true', 183 | help='Generate soft sine pulses (square pulses otherwise)') 184 | args = parser.parse_args() 185 | 186 | if args.file is None: 187 | parser.print_help(sys.stderr) 188 | sys.exit(1) 189 | 190 | tzx = TzxFile() 191 | tzx.read(args.file) 192 | stream = streamAudio(tzx, rate=args.rate, stopAlways=args.stop, stop48k=args.mode48k, 193 | sine=args.sine, cpufreq=args.clock, verbose=args.verbose, npy=args.to is None) 194 | 195 | audiostream = audio = wav = None 196 | 197 | try: 198 | if args.to is not None: 199 | # Generate WAV file 200 | wav = wave.open(args.to, mode='wb') 201 | wav.setnchannels(1) 202 | wav.setsampwidth(2) 203 | wav.setframerate(args.rate) 204 | for b in stream: 205 | wav.writeframesraw(b) 206 | wav.writeframesraw(silence[0:16]) 207 | else: 208 | # Audio Playback 209 | with sd.Stream(samplerate=args.rate, channels=1, latency='high') as out: 210 | for b in stream: 211 | out.write(b) 212 | except KeyboardInterrupt: 213 | print('', file=sys.stderr) 214 | print("D BREAK - CONT repeats, 0:1", file=sys.stderr) 215 | finally: 216 | if wav is not None: 217 | wav.close() 218 | if audiostream is not None: 219 | audiostream.stop_stream() 220 | audiostream.close() 221 | if audio is not None: 222 | audio.terminate() 223 | -------------------------------------------------------------------------------- /tzxtools/tzxsplit.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import os.path 24 | import re 25 | import sys 26 | 27 | from tzxlib.tapfile import TapHeader 28 | from tzxlib.tzxfile import TzxFile 29 | 30 | unwanted = re.compile(r'[^a-zA-Z0-9 #$%,;=@_{}()+-]') 31 | 32 | def sanitize(name): 33 | if len(name) == 0: 34 | return 'no-name' 35 | return unwanted.sub('_', name) 36 | 37 | def writeTzx(tzx, name, dir): 38 | if tzx is None or len(tzx.blocks) == 0: return # do not write empty TZX files 39 | count = 1 40 | while True: 41 | fn = '%s%s-%03d.tzx' % (dir, sanitize(name), count) 42 | if not os.path.isfile(fn): break 43 | count += 1 44 | tzx.write(fn) 45 | 46 | def main(): 47 | parser = argparse.ArgumentParser(description='Split into separate programs') 48 | parser.add_argument('file', 49 | nargs='?', 50 | type=argparse.FileType('rb'), 51 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 52 | help='TZX file, stdin if omitted') 53 | parser.add_argument('-d', '--dir', 54 | dest='dir', 55 | metavar='TARGET', 56 | default='./', 57 | help='target directory, default is cwd') 58 | parser.add_argument('-1', '--single', 59 | dest='single', 60 | action='store_true', 61 | help='split into single loadable files') 62 | parser.add_argument('-s', '--skip', 63 | dest='skip', 64 | action='store_true', 65 | help='skip all blocks before first Program') 66 | args = parser.parse_args() 67 | 68 | if args.file is None: 69 | parser.print_help(sys.stderr) 70 | sys.exit(1) 71 | 72 | file = TzxFile() 73 | file.read(args.file) 74 | 75 | dir = args.dir 76 | if dir[-1] != '/': dir += '/' 77 | 78 | fname = 'preamble' 79 | fout = TzxFile() if not args.skip else None 80 | 81 | for b in file.blocks: 82 | if hasattr(b, 'tap') and isinstance(b.tap, TapHeader) and (b.tap.typeId() == 0 or args.single): 83 | writeTzx(fout, fname, dir) 84 | fout = TzxFile() 85 | fname = b.tap.name().strip() 86 | if not fout is None: 87 | fout.blocks.append(b) 88 | 89 | writeTzx(fout, fname, dir) 90 | -------------------------------------------------------------------------------- /tzxtools/tzxtap.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2018 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import io 24 | import sys 25 | 26 | from tzxlib.tzxfile import TzxFile 27 | from tzxlib.tzxblocks import TapNotSupportedError 28 | 29 | def writeBlock(block, out, ignore, index): 30 | try: 31 | if block.writeTap(out): 32 | if not block.tap.valid(): 33 | print('Block %3d: Warning: Bad CRC, may cause tape loading error.' % (index), file=sys.stderr) 34 | else: 35 | print('Block %3d: Comment block was ignored.' % (index), file=sys.stderr) 36 | except TapNotSupportedError: 37 | if ignore: 38 | print('Block %3d: Warning: Block is not supported by TAP format.' % (index), file=sys.stderr) 39 | else: 40 | print('Block %3d: Error: Block is not supported by TAP format.' % (index), file=sys.stderr) 41 | print('Use --ignore option to enforce conversion, but TAP file will be faulty.', file=sys.stderr) 42 | exit(1) 43 | 44 | def writeAllBlocks(tzx, out, ignore): 45 | index = 0 46 | for block in tzx.blocks: 47 | writeBlock(block, out, ignore, index) 48 | index += 1 49 | 50 | def main(): 51 | parser = argparse.ArgumentParser(description='Convert to TAP file format') 52 | parser.add_argument('file', 53 | nargs='?', 54 | type=argparse.FileType('rb'), 55 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 56 | help='TZX file, stdin if omitted') 57 | parser.add_argument('-o', '--to', 58 | dest='to', 59 | metavar='TARGET', 60 | type=argparse.FileType('wb'), 61 | default=sys.stdout.buffer, 62 | help='TAP file, stdout if omitted') 63 | parser.add_argument('-i', '--ignore', 64 | dest='ignore', 65 | action='store_true', 66 | help='ignore blocks that cannot be stored in a TAP file') 67 | args = parser.parse_args() 68 | 69 | if args.file is None: 70 | parser.print_help(sys.stderr) 71 | sys.exit(1) 72 | 73 | file = TzxFile() 74 | file.read(args.file) 75 | 76 | outf = args.to if args.to != '-' else sys.stdout.buffer 77 | with outf if isinstance(outf, io.IOBase) else open(outf, 'wb') as tap: 78 | writeAllBlocks(file, tap, args.ignore) 79 | -------------------------------------------------------------------------------- /tzxtools/tzxwav.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # 3 | # tzxtools - a collection for processing tzx files 4 | # 5 | # Copyright (C) 2016 Richard "Shred" Körber 6 | # https://codeberg.org/shred/tzxtools 7 | # 8 | # This program is free software: you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation, either version 3 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program. If not, see . 20 | # 21 | 22 | import argparse 23 | import io 24 | import sys 25 | from time import time 26 | import wave 27 | 28 | from tzxlib.loader import TapeLoader 29 | 30 | tresholds = { 'low': 500, 'med': 2500, 'high':5000 } 31 | tolerances = { 'low': 1.1, 'med': 1.2, 'high': 1.4 } 32 | leaderMins = { 'none': 2, 'short': 10, 'normal': 40, 'long': 100 } 33 | leftChMix = { 'left': 1, 'mix': 0.5, 'right': 0 } 34 | 35 | lastPercent = None 36 | startTime = None 37 | 38 | def showProgress(current, max): 39 | global lastPercent, startTime 40 | if startTime is None: 41 | startTime = time() 42 | percent = int(current * 100 / max) 43 | if lastPercent is None or percent != lastPercent: 44 | lastPercent = percent 45 | halfPercent = int(percent / 2) 46 | if lastPercent > 3: 47 | now = time() 48 | remainSecs = ((now - startTime) * 100 / lastPercent) + startTime - now 49 | print('%3d%% |%s%s| %2d:%02d' % (percent, '#'*halfPercent, '-'*(50-halfPercent), remainSecs // 60 , remainSecs % 60), end='\r', file=sys.stderr) 50 | else: 51 | print('%3d%% |%s%s|' % (percent, '#'*halfPercent, '-'*(50-halfPercent)), end='\r', file=sys.stderr) 52 | 53 | def main(): 54 | parser = argparse.ArgumentParser(description='Generates TZX from WAV file') 55 | parser.add_argument('file', 56 | nargs='?', 57 | type=argparse.FileType('rb'), 58 | default=(None if sys.stdin.isatty() else sys.stdin.buffer), 59 | help='WAV file') 60 | parser.add_argument('-o', '--to', 61 | dest='to', 62 | metavar='TARGET', 63 | type=argparse.FileType('wb'), 64 | default=sys.stdout.buffer, 65 | help='target file, stdout if omitted') 66 | parser.add_argument('-p', '--progress', 67 | dest='progress', 68 | action='store_true', 69 | help='show progress bar') 70 | parser.add_argument('-v', '--verbose', 71 | dest='verbose', 72 | action='store_true', 73 | help='show blocks as they are found') 74 | parser.add_argument('-t', '--treshold', 75 | choices=['low', 'med', 'high'], 76 | default='med', 77 | dest='treshold', 78 | help='sound/noise ratio treshold') 79 | parser.add_argument('-T', '--tolerance', 80 | choices=['low', 'med', 'high'], 81 | default='med', 82 | dest='tolerance', 83 | help='tape speed flutter tolerance') 84 | parser.add_argument('-l', '--leader', 85 | choices=['none', 'short', 'normal', 'long'], 86 | default='normal', 87 | dest='leader', 88 | help='accepted minimal length of leader signal') 89 | parser.add_argument('-c', '--clock', 90 | dest='clock', 91 | default=3500000, 92 | type=int, 93 | help='Reference Z80 CPU clock, in Hz') 94 | parser.add_argument('-s', '--start', 95 | dest='start', 96 | type=int, 97 | help='Start at WAV frame number') 98 | parser.add_argument('-e', '--end', 99 | dest='end', 100 | type=int, 101 | help='End at WAV frame number') 102 | parser.add_argument('-S', '--stereo', 103 | choices=['left', 'mix', 'right'], 104 | default='mix', 105 | dest='leftChMix', 106 | help='channel selection (works only for stereo WAV files)') 107 | parser.add_argument('-D', '--debug', 108 | dest='debug', 109 | action='count', 110 | help='enable debug output, give multiple times to increase verbosity') 111 | 112 | args = parser.parse_args() 113 | 114 | if args.file is None: 115 | parser.print_help(sys.stderr) 116 | sys.exit(1) 117 | 118 | loader = TapeLoader(debug=args.debug, 119 | treshold=tresholds[args.treshold], 120 | tolerance=tolerances[args.tolerance], 121 | leaderMin=leaderMins[args.leader], 122 | leftChMix=leftChMix[args.leftChMix], 123 | cpufreq=args.clock, 124 | progress=showProgress if args.progress else None, 125 | verbose=args.verbose) 126 | 127 | try: 128 | tzx = loader.load(args.file, startFrame=args.start, endFrame=args.end) 129 | file = args.to 130 | if not isinstance(file, io.IOBase) and not file.lower().endswith('.tzx'): 131 | file += '.tzx' 132 | tzx.write(file) 133 | except KeyboardInterrupt: 134 | print('', file=sys.stderr) 135 | print("D BREAK - CONT repeats, 0:1", file=sys.stderr) 136 | exit(1) 137 | 138 | if args.progress: 139 | print('', file=sys.stderr) 140 | --------------------------------------------------------------------------------