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6502 code generator for sprites, fonts, images and more
| transposed_font_comparison | ||
| .gitignore | ||
| apple-sprite9x11.png | ||
| apple-sprite15x15.png | ||
| asmgen.py | ||
| bwtest.s | ||
| colortest.s | ||
| cpbg.s | ||
| drawfont.s | ||
| fatfont128.dat | ||
| fatfont.s | ||
| fonttest.s | ||
| LICENSE | ||
| LICENSE.generated_code | ||
| Makefile | ||
| moldy_burger.png | ||
| multitest.s | ||
| README.rst | ||
| setup.py | ||
| slowfont.s | ||
| transposed_font_description.pdf | ||
| transposed_font_description.svg | ||
=========== AsmGen =========== Abstract ======== AsmGen - code generator for sprites, fonts, and images for Apple ][ hi-res and Atari 8-bit computers This program creates 6502 (or 65c02) code for several tasks, including a sprite complier (based on `HiSprite <https://github.com/blondie7575/HiSprite>`_) that hardcodes sprite data in unrolled loops for each shifted shape. By removing image lookups and loops, sprites can be drawn much faster than otherwise possible. Other utilities include generating code for reporting screen damage, a fast bitmap font renderer, and generation for all the row/column lookup tables for each supported bitmap mode. Installing From Source ====================== The autogenerator code is written in Python and should run on any platform that can use python Prerequisites ------------- * python 3.6 (and above) * numpy * pypng Starting with version 2.0, python 2 support has been dropped. Fork me! ======== The source is free and open, and lives on `github <https://github.com/robmcmullen/asmgen>`_, so clone and enhance at will! History ======= This program started life as a friendly fork of Quinn Dunki's `HiSprite <https://github.com/blondie7575/HiSprite>`_ that she presented at KansasFest 2017. Her conclusion was that it was not that practical for the Apple II because of the limited memory and the number of sprite shifts needed. I wanted to port this to the Atari because it would require fewer shifted shapes in most of the graphics modes (e.g. only 4 shifted shapes for the commonly used ANTIC modes 13 and 14) She told me that she was unlikely to continue work on sprite compiling but encouraged me to continue development. Additional Credits ================== The sample font is modified from Michael Pohoreski's `excellent tutorial on Apple II fonts <https://github.com/Michaelangel007/apple2_hgr_font_tutorial>`_. Disclaimer ========== AsmGen, the 6502 code generator sponsored by the Player/Missile Podcast Copyright (c) 2017-2018 Rob McMullen This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Generated Code License ---------------------- While the code for AsmGen itself is licensed under the GPLv3, the code it produces is licensed under the the Creative Commons Attribution 4.0 International (CC BY 4.0), so you are free to use the generated code for commercial or non-commercial purposes.