Ophis is a cross-assembler for the 65xx series of chips. It supports the stock 6502 opcodes, the 65c02 extensions, the 4502/4510 used in the Commodore 65 prototypes, and syntax for the “undocumented opcodes” in the 6510 chip used on the Commodore 64.
Ophis is written in pure Python and should be highly portable.
It is provided under the MIT license, reproduced below:
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Ophis, Copyright (C) 2002-2026 Michael Martin and contributors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Release files for ophis-asm 2.3.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| ophis_asm-2.3.0.tar.gz | 430.0 kB | Without provenance | Details for ophis_asm-2.3.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| ophis_asm-2.3.0-py3-none-any.whl | Python 3 | none | any | Details for ophis_asm-2.3.0-py3-none-any.whl |
Total release size: 460.1 kB
Release files / ophis_asm-2.3.0.tar.gz
| Download URL | ophis_asm-2.3.0.tar.gz |
|---|---|
| Size | 430.0 kB |
| Tags | Source |
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SHA-256 checksum How to use checksums |
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twine/6.2.0 CPython/3.14.3
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Release files / ophis_asm-2.3.0-py3-none-any.whl
| Download URL | ophis_asm-2.3.0-py3-none-any.whl |
|---|---|
| Size | 30.1 kB |
| Tags | Python 3 |
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