Commit Graph

59 Commits

Author SHA1 Message Date
Lior Halphon
18126994ff Downgrade hardware.inc (rgbds is old in Ubuntu's repos, used by GitHub Actions), move definitions to hardware.inc's bottom 2022-04-18 20:03:51 +03:00
Ricardo Maurizio Paul
de21e8d628
use friendly names for HW registers instead of magic numbers 2022-04-18 18:09:16 +02:00
Lior Halphon
8073e3d39e Visual refresh, update copyright year, crush PNGs 2022-02-24 00:38:27 +02:00
Lior Halphon
9e3ad31df1 Fix HDMA usage in SameBoot 2022-01-29 02:12:27 +02:00
Lior Halphon
f237b1e9b9 CGB-0 support 2021-11-04 00:35:44 +02:00
Lior Halphon
18007f0e53 MGB support 2021-10-23 23:28:54 +03:00
Lior Halphon
1376c386a2 Slightly altered merge of #408 2021-10-20 21:49:02 +03:00
Lior Halphon
51be70275d Fix broken wave RAM initialization in the boot ROM 2021-09-22 17:59:20 +03:00
Lior Halphon
0ff882f3bc Actually do what the previous commit claimed to do 2021-07-28 00:47:19 +03:00
Lior Halphon
b454ee28db Fix an issue where SameBoot gave DMG games the wrong palette and needlessly drew the DMG boot tilemap 2021-07-27 22:18:28 +03:00
SimpleTease
714227883f cross-compile friendly 2020-10-10 13:46:44 +00:00
Jakub Kądziołka
9c50a992af
pb12: check the return value of write 2020-09-17 20:01:21 +02:00
Lior Halphon
a2e656a7c2 Fixed boot ROM regression; CGB games were given the wrong palettes 2020-06-24 20:34:52 +03:00
Lior Halphon
157123e118 Fix clearing OAM and initializeing wave RAM 2020-05-17 19:24:11 +03:00
Jakub Kądziołka
24220defd6
Save 16 bytes in the CGB boot ROM 2020-05-09 13:11:51 +02:00
Lior Halphon
e063671816 No need to use malloc here, the buffer never gets large 2020-05-07 22:46:06 +03:00
Lior Halphon
8625b23c0d Whoops 2020-05-07 01:32:03 +03:00
Lior Halphon
7cff35368d Port to C to remove the Python dep, remove leftovers 2020-05-06 23:30:01 +03:00
Lior Halphon
184743637e Fix silly regression 2020-05-06 01:10:46 +03:00
Lior Halphon
730567dc60 Proper color mixing 2020-05-06 01:06:22 +03:00
Lior Halphon
a3f261184d Optimize more 2020-05-05 01:44:48 +03:00
Lior Halphon
f46f138e9f Clear VRAM correctly 2020-05-04 23:54:43 +03:00
Lior Halphon
72a90ba91c Hacky color blending 2020-05-04 02:17:03 +03:00
Lior Halphon
2225fd114c Handle 2bpp palettes 2020-05-04 02:07:19 +03:00
Jakub Kądziołka
b057e0d10a
Save 4 more bytes in the CGB boot ROM 2020-05-03 23:07:53 +02:00
Jakub Kądziołka
cb738190be
Add a 2bpp CGB boot ROM logo, pending palettes 2020-05-03 22:45:23 +02:00
Jakub Kądziołka
19126df7f4
Save 8 bytes in the CGB boot ROM 2020-05-03 22:41:56 +02:00
Lior Halphon
0cf168f32b Fixing inconsistent style 2020-04-24 20:37:57 +03:00
Lior Halphon
ee939a3782 New boot ROM animation in the DMG boot ROM 2020-03-06 17:37:18 +02:00
Damian Yerrick
26cf970713 don't need logo-compress.c anymore 2019-07-16 17:04:23 -04:00
Damian Yerrick
4504de828a cgb_boot: Compress logo with PB8
The logo is compressed using PB8, a form of RLE with unary-coded
run lengths.  Each block representing 8 bytes consists of a control
byte, where each bit (MSB to LSB) is 0 for literal or 1 for repeat
previous, followed by the literals in that block.

PB8 compression is also used in a few NES games.  A variant called
PB16, where 1 means repeat 2 bytes back, is used in the Game Boy
port of 240p Test Suite and in Libbet and the Magic Floor.

Switching from logo-compress RLE to PB8 decreases the compressed
logo data size from 287 bytes to 253 bytes, saving 34 bytes.
The decompression code is also about 10 bytes smaller.
2019-07-16 16:58:16 -04:00
Lior Halphon
970a5f562b Fix #183 2019-06-22 18:16:55 +03:00
Lior Halphon
5a04054145 Style changes 2019-06-14 14:34:02 +03:00
Lior Halphon
8389c6a450 Long overdue capitalization fixes 2019-06-14 14:31:17 +03:00
Jakub Kądziołka
c678407d1e
Compress the Sameboy logo. 117 bytes are now free 2019-06-10 17:45:14 +02:00
Jakub Kądziołka
8386aaf12f
Save 20 bytes in the CGB boot ROM 2019-06-09 15:15:08 +02:00
Lior Halphon
a0c5baecd8 More realistic initial V/RAM values in the boot ROM. Fixes #150 and #91 2019-06-09 00:53:44 +03:00
Lior Halphon
bb7fa95426 Fix incorrect register values when changing the color palette via the boot ROM 2019-06-08 13:37:49 +03:00
Lior Halphon
cdc36f329e Added open dialog to the SDL GUI, misc fixes 2019-06-01 14:29:46 +03:00
Lior Halphon
10be34b5b2 Fix the fast CGB boot ROM booting with data on the second VRAM bank 2019-05-04 21:15:23 +03:00
Lior Halphon
241577a7f1 Merge branch 'master' into sgb 2018-12-02 00:15:07 +02:00
Lior Halphon
a1c39173dd SGB2 boot ROM 2018-12-01 17:28:57 +02:00
Lior Halphon
3ba1364d60 Fixed a boot ROM bug that made a few Nintendo games use incorrect object palettes 2018-11-23 01:09:14 +02:00
Lior Halphon
44891d5c4a Initial code to support SGB, command “parsing”, replacement SGB boot ROM 2018-11-11 01:16:32 +02:00
Lior Halphon
a47e3cc62c Remove code duplication in the QL fast boot ROM, should fix some glitched thumbnails 2018-11-10 21:10:09 +02:00
Lior Halphon
afcb7b8579 Fixed a regression where DMG mode on CGB would not activate on most DMG games. Fixes #98 2018-07-10 20:28:36 +03:00
Lior Halphon
30f13bd28c More accurate CGB initial register values. Closes #80 2018-06-19 23:59:16 +03:00
Lior Halphon
b1d65fd84f Fixed boot_hwio-C (for SameBoy’s boot). Closes #59 2018-04-03 20:10:11 +03:00
Lior Halphon
e380a00b67 Fixed another timing regression with the CB opcodes 2018-03-29 21:06:53 +03:00
Lior Halphon
2cd5c49935 Made CGB boot more accurate, added AGB boot 2018-01-13 13:02:31 +02:00