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Author SHA1 Message Date
Stefan Arentz
1c00e6f271 Implement speaker sound support (#188) 
Add sound subsystem that emulates the Apple II speaker by:
- Tracking speaker state toggles when $C030 is accessed
- Generating audio samples based on CPU cycle timing
- Outputting 44.1 kHz audio via SDL

New files: snd.h, snd.c

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-11 13:07:28 -05:00
Stefan Arentz
4ad5d458f9 Fix HGR color fringing artifacts (#187) 
Replace the 2-bit pairing approach with per-pixel rendering to eliminate
color artifacts at edges. The new implementation processes each pixel
individually, uses each byte's own high bit for palette selection, and
properly detects adjacent pixels for white rendering.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-11 12:56:34 -05:00
Joe Hildebrand
f797e02836 Add small doc improvements for first time users (#182) 2018-01-25 16:38:53 -05:00
Stefan Arentz
71bbe91ac3 Fixes #84 - Unexpected write at $C000 2017-10-15 22:21:56 -04:00
Stefan Arentz
ccfa250823 Fixes #154 - Unexpected read at $C020 2017-10-15 22:18:20 -04:00
Stefan Arentz
3168e11814 Fixes #181 - In color mode, text should be white 2017-10-15 21:30:15 -04:00
Stefan Arentz
31ecfb98f5 Fixes #180 - Implement flashing text 2017-10-15 20:01:08 -04:00
Stefan Arentz
6e32724ffa Fixes #179 - Blinking in tty is irregular 2017-10-15 17:02:22 -04:00
Stefan Arentz
d2a8386f72 Fixes #178 - Allow the emulator to be paused 2017-10-15 16:40:30 -04:00
Stefan Arentz
7a68e0909b Fixes #175 - Support software rendering in scr (#176) 2017-10-15 15:45:53 -04:00
Stefan Arentz
8a8438d0c2 Fix for link issue 2017-10-03 20:39:37 -04:00
Stefan Arentz
cb783a3957 Fixes #174 - Support CMake (Debug vs Release) 2017-10-03 01:28:22 +00:00
Stefan Arentz
95dcce4bba Fixes #174 - Support CMake (Lower CMake version) 2017-10-03 01:19:28 +00:00
Stefan Arentz
3f1d258646 Fixes #174 - Support CMake 2017-10-02 21:12:21 -04:00
Stefan Arentz
a28b9180ff Fixes #173 - Crash in scr_test 2017-10-02 20:36:15 -04:00
Stefan Arentz
839ce07e9c Fixes #164 - Make Lua Optional (#165) 2017-10-02 20:32:43 -04:00
Stefan Arentz
9a517223e2 Fixes #171 - Support software rendering in tty (#172) 2017-10-02 20:20:53 -04:00
Stefan Arentz
699072aa86 Fixes #170 - Create a benchmark for tty.c 2017-10-01 11:08:23 -04:00
Stefan Arentz
a38375554d Fixes #162 - Introduce a DEBUG compilation mode 2017-09-23 11:57:40 +00:00
Stefan Arentz
fd6818e2ab Performance Improvements Part II (#161) 2017-09-23 07:45:36 -04:00
Stefan Arentz
ab4c8e025e Update cpu_test.lua 2017-09-22 11:41:51 +00:00
Stefan Arentz
a4324737d5 Performance improvements (#160) 2017-09-21 22:18:53 -04:00
Stefan Arentz
58bb3d7739 Fixes #158 - Make the project compile on Raspbian 9.1 (Stretch) (#159) 2017-09-21 21:39:31 -04:00
Stefan Arentz
de9212a47f Script for Burger Time cheat 2017-09-20 18:06:30 -04:00
Stefan Arentz
1cd98d8e71 Fixes #157 - Add Lua API for Keyboard Events 2017-09-20 18:06:09 -04:00
Stefan Arentz
97d415a501 Fixes #155 - Add a Lua API to access memory 2017-09-20 17:44:57 -04:00
Stefan Arentz
a88c4a7562 Introduce Lua 5.2 support (#148) 2017-09-18 21:21:57 -04:00
Stefan Arentz
c68fc356c6 Adding cpu_bench to gitignore 2017-03-14 09:49:12 -04:00
Stefan Arentz
da40ac82bb Fixes #145 - Print Usage and Command Line Options (#146) 2017-03-14 09:46:57 -04:00
Stefan Arentz
47ca22fb42 Update .travis.yml 2017-03-14 09:46:33 -04:00
Stefan Arentz
05bef561ad Update .travis.yml 2017-03-13 22:47:05 -04:00
Stefan Arentz
be01db6393 Fixes #143 Implement a clock_gettime replacement (#144) 2017-03-13 15:01:06 -04:00
Stefan Arentz
e0943d051a Fixes #86 Create a Boot Loader (#134) 2017-01-22 20:02:26 -05:00
Stefan Arentz
9a94156a5b Fix for GCC compilation issue 2017-01-17 03:18:32 +00:00
Stefan Arentz
8800bf2b9f Fixes #139 Optimize zero page and stack access (#140) 2017-01-15 20:48:16 -05:00
Stefan Arentz
f3781e2d69 Fixes #135 Benchmark Memory Routines (#136) 2017-01-15 16:49:06 -05:00
Stefan Arentz
349ebc0bad Fixes #137 Benchmark CPU Module (#138) 2017-01-15 16:28:32 -05:00
Stefan Arentz
83157ffe2a Removed the Apple IIe from the README 2017-01-14 20:33:45 -05:00
Stefan Arentz
af139f2e2c Fixes #129 Find Volume from disk image (#132) 2017-01-13 21:41:44 -05:00
Stefan Arentz
7acae93861 Fixes #104 Control keys don't work correctly (#130) 2017-01-13 21:29:25 -05:00
Stefan Arentz
a1536aa351 Add chr_test to .gitignore 2017-01-13 21:12:31 -05:00
Stefan Arentz
9df5355e31 Fixes #82 Support nib files 2017-01-09 21:39:55 -05:00
Stefan Arentz
70aef81778 Fixes #125 Remove all public _init() functions 2017-01-09 21:09:20 -05:00
Stefan Arentz
37d508c367 Fixes #126 Implement the same cpu throttling/screen update loop as we have on the two 2017-01-08 22:18:38 -05:00
Stefan Arentz
f6beef7e34 Fixes #119 Print renderer debug info 2017-01-05 23:19:19 -05:00
Stefan Arentz
51293dc9de Fixes #118 Introduce a --debug option 2017-01-05 23:06:39 -05:00
Stefan Arentz
de64006303 Fixes #116 Support .po files 2017-01-01 19:35:33 -05:00
Stefan Arentz
181c87bebd Update Travis to use OS X 10.13 2017-01-01 09:23:46 -05:00
Stefan Arentz
fee8efce69 Fixes #110 Make cpu_test also print out the emulated cpu speed 2016-12-30 17:56:16 -05:00
Stefan Arentz
4b8df8f151 Small compilation fix for GCC 5.4 2016-12-30 09:12:08 -08:00