Mercurial > sdl-ios-xcode

annotate src/video/ataricommon/SDL_ataric2p.S @ 4392:2b8c1aea633b SDL-1.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed bug #898 Jeremiah Morris 2009-12-09 16:07:17 PST No-op GlobalToLocal translations in fullscreen mode On my MacBook Pro running 10.6, I noticed a small upward bias on mouse movement in a fullscreen SDL application. The app uses WarpCursor and GetMouseState in a loop to measure relative movement. I tracked it down to NSWindow's convertBaseToScreen: routine, which added a 2-pixel offset on the Y coordinate instead of the expected (+0,+0) translation. In fullscreen mode, QZ_PrivateWarpCursor() does not translate the desired position through QZ_PrivateGlobalToLocal() before passing it to the Core Graphics system. However, QZ_GetMouseLocation() does call the reverse QZ_PrivateLocalToGlobal() even in fullscreen mode. This asymmetry caused problems each time the mouse was moved.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 11 Dec 2009 15:31:37 +0000
parents a52047c790a2
children
rev   line source
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
4159
a1b03ba2fcd0 Updated copyright date
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
3 Copyright (C) 1997-2009 Sam Lantinga
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
6 modify it under the terms of the GNU Lesser General Public
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
13 Lesser General Public License for more details.
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1086
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23 /*
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
24 Chunky to planar conversion routine
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
25 1 byte/pixel -> 4 or 8 bit planes
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
27 Patrice Mandin
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
28 Xavier Joubert
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
29 Mikael Kalms
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
30 */
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
32 .globl _SDL_Atari_C2pConvert
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
33 .globl _SDL_Atari_C2pConvert8
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
34 .globl _SDL_Atari_C2pConvert4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
35 .globl _SDL_Atari_C2pConvert4_pal
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 /* ------------ Conversion C2P, 8 bits ------------ */
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
39 .text
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
40 _SDL_Atari_C2pConvert8:
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
41 #if !defined(__mcoldfire__)
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
42 movel sp@(4),c2p_source
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
43 movel sp@(8),c2p_dest
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
44 movel sp@(12),c2p_width
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
45 movel sp@(16),c2p_height
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
46 movel sp@(20),c2p_dblligne
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
47 movel sp@(24),c2p_srcpitch
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
48 movel sp@(28),c2p_dstpitch
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
49
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
50 moveml d2-d7/a2-a6,sp@-
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
51
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
52 movel c2p_source,c2p_cursrc
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
53 movel c2p_dest,c2p_curdst
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
54 movel #0x0f0f0f0f,d4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
55 movel #0x00ff00ff,d5
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
56 movel #0x55555555,d6
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
57 movew c2p_height+2,c2p_row
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
58 movew c2p_width+2,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
59 andw #-8,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
60 movew d0,c2p_rowlen
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
61
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
62 SDL_Atari_C2p8_rowloop:
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
63
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
64 movel c2p_cursrc,a0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
65 movel c2p_curdst,a1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
66
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
67 movel a0,a2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
68 addw c2p_rowlen,a2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
69
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
70 movel a0@+,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
71 movel a0@+,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
72 movel a0@+,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
73 movel a0@+,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
74 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
75 d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
76 d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
77 d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
78 d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
79 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
80 movel d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
81 lsrl #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
82 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
83 andl d4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
84 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
85 lsll #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
86 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
87
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
88 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
89 lsrl #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
90 eorl d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
91 andl d4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
92 eorl d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
93 lsll #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
94 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
95
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
96 movel d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
97 lsrl #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
98 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
99 andl d5,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
100 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
101 lsll #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
102 eorl d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
103
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
104 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
105 lsrl #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
106 eorl d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
107 andl d5,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
108 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
109 lsll #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
110 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
111 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
112 d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
113 d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
114 d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
115 d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
116 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
117 bras SDL_Atari_C2p8_start
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
118
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
119 SDL_Atari_C2p8_pix16:
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
120
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
121 movel a0@+,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
122 movel a0@+,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
123 movel a0@+,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
124 movel a0@+,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
125 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
126 d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
127 d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
128 d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
129 d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
130 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
131 movel d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
132 lsrl #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
133 movel a3,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
134 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
135 andl d4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
136 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
137 lsll #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
138 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
139
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
140 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
141 lsrl #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
142 eorl d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
143 andl d4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
144 eorl d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
145 movel a4,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
146 lsll #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
147 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
148
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
149 movel d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
150 lsrl #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
151 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
152 andl d5,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
153 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
154 movel a5,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
155 lsll #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
156 eorl d7,d2
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
158 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
159 lsrl #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
160 eorl d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
161 andl d5,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
162 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
163 movel a6,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
164 lsll #8,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
165 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
166 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
167 d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
168 d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
169 d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
170 d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
171 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
172
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
173 SDL_Atari_C2p8_start:
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
174
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
175 movel d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
176 lsrl #1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
177 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
178 andl d6,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
179 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
180 addl d7,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
181 eorl d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
182
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
183 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
184 lsrl #1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
185 eorl d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
186 andl d6,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
187 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
188 addl d7,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
189 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
190 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
191 d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
192 d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
193 d2 = a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
194 d3 = a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
195 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
196 movew d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
197 movew d0,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
198 swap d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
199 movew d2,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
200 movew d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
201
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
202 movew d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
203 movew d1,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
204 swap d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
205 movew d3,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
206 movew d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
207 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
208 d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
209 d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
210 d2 = c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
211 d3 = c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
212 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
213 movel d2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
214 lsrl #2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
215 eorl d0,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
216 andl #0x33333333,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
217 eorl d7,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
218 lsll #2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
219 eorl d7,d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
220
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
221 movel d3,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
222 lsrl #2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
223 eorl d1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
224 andl #0x33333333,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
225 eorl d7,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
226 lsll #2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
227 eorl d7,d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
228 /*
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
229 d0 = a7b7c7d7e7f7g7h7 i7j7k7l7m7n7o7p7 a6b6c6d6e6f6g6h6 i6j6k6l6m6n6o6p6
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
230 d1 = a3b3c3d3e3f3g3h3 i3j3k3l3m3n3o3p3 a2b2c2d2e2f2g2h2 i2j2k2l2m2n2o2p2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
231 d2 = a5b5c5d5e5f5g5h5 i5j5k5l5m5n5o5p5 a4b4c4d4e4f4g4h4 i4j4k4l4m4n4o4p4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
232 d3 = a1b1c1d1e1f1g1h1 i1j1k1l1m1n1o1p1 a0b0c0d0e0f0g0h0 i0j0k0l0m0n0o0p0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
233 */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
234 swap d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
235 swap d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
236 swap d2
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
237 swap d3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
238
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
239 movel d0,a6
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
240 movel d2,a5
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
241 movel d1,a4
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
242 movel d3,a3
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
243
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
244 cmpl a0,a2
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
245 bgt SDL_Atari_C2p8_pix16
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
246
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
247 movel a3,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
248 movel a4,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
249 movel a5,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
250 movel a6,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
251
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
252 /* Double the line ? */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
253
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
254 movel c2p_srcpitch,d0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
255 movel c2p_dstpitch,d1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
256
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
257 tstl c2p_dblligne
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
258 beqs SDL_Atari_C2p8_nodblline
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
259
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
260 movel c2p_curdst,a0
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
261 movel a0,a1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
262 addl d1,a1
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
263
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
264 movew c2p_width+2,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
265 lsrw #4,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
266 subql #1,d7
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
267 SDL_Atari_C2p8_dblloop:
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
268 movel a0@+,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
269 movel a0@+,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
270 movel a0@+,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
271 movel a0@+,a1@+
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
272 dbra d7,SDL_Atari_C2p8_dblloop
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
273
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
274 addl d1,c2p_curdst
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
275
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
276 SDL_Atari_C2p8_nodblline:
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
277
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
278 /* Next line */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
279
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
280 addl d0,c2p_cursrc
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
281 addl d1,c2p_curdst
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
282
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
283 subqw #1,c2p_row
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
284 bne SDL_Atari_C2p8_rowloop
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
285
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
286 moveml sp@+,d2-d7/a2-a6
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
287 #endif
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
288 rts
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
289
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
290 /* ------------ Conversion C2P, 4 bits ------------ */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
291
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
292 _SDL_Atari_C2pConvert4:
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
293 #if !defined(__mcoldfire__)
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
294 movel sp@(4),c2p_source
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295 movel sp@(8),c2p_dest
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
296 movel sp@(12),c2p_width
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
297 movel sp@(16),c2p_height
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
298 movel sp@(20),c2p_dblligne
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299 movel sp@(24),c2p_srcpitch
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 movel sp@(28),c2p_dstpitch
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302 moveml d2-d7/a2-a6,sp@-
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304 movel c2p_source,a0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305 movel c2p_dest,a1
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
306 lea _SDL_Atari_table_c2p,a2
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
307 movel #0x00070001,d3
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
308 #if defined(__M68020__)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
309 moveq #0,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
310 #endif
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312 movel c2p_height,d7
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 subql #1,d7
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 c2p4_bcly:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315 movel a0,a4 | Save start address of source
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 movel a1,a5 | Save start address of dest
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318 | Conversion
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320 movel c2p_width,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 lsrw #4,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322 subql #1,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323 c2p4_bclx:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324 | Octets 0-7
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 moveq #0,d1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 moveq #7,d5
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328 c2p4_bcl07:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 #if defined(__M68020__)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330 moveb a0@+,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
331 lea a2@(0,d0:w:4),a3
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332 #else
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 moveq #0,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334 moveb a0@+,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335 lslw #2,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
336 lea a2@(0,d0:w),a3
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 #endif
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 lsll #1,d1
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
339 orl a3@,d1
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340 dbra d5,c2p4_bcl07
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 movepl d1,a1@(0)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343 addw d3,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 swap d3
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
345
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
346 | Octets 8-15
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
347
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
348 moveq #0,d1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
349 moveq #7,d5
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
350 c2p4_bcl815:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
351 #if defined(__M68020__)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
352 moveb a0@+,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
353 lea a2@(0,d0:w:4),a3
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
354 #else
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
355 moveq #0,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356 moveb a0@+,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
357 lslw #2,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
358 lea a2@(0,d0:w),a3
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359 #endif
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360 lsll #1,d1
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
361 orl a3@,d1
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
362 dbra d5,c2p4_bcl815
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
363
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364 movepl d1,a1@(0)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
365 addw d3,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
366 swap d3
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 dbra d6,c2p4_bclx
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
369
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
370 | Double line ?
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 tstl c2p_dblligne
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
373 beqs c2p4_nodblligne
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 movel a5,a6 | src line
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 movel a5,a1 | dest line
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 addl c2p_dstpitch,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 movel c2p_width,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380 lsrw #3,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381 subql #1,d6
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382 c2p4_copydbl:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
383 movel a6@+,a1@+
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384 dbra d6,c2p4_copydbl
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 addl c2p_dstpitch,a5
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 c2p4_nodblligne:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 | Next line
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391 movel a4,a0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
392 addl c2p_srcpitch,a0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 movel a5,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394 addl c2p_dstpitch,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 dbra d7,c2p4_bcly
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 moveml sp@+,d2-d7/a2-a6
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
399 #endif
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400 rts
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
402 /* ------------ Conversion of a light palette in 4 bits ------------ */
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
404 _SDL_Atari_C2pConvert4_pal:
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
405 #if !defined(__mcoldfire__)
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406 /* a0 is a 256-word light palette */
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 movel sp@(4),a0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409 moveml d2-d3,sp@-
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
411 lea _SDL_Atari_table_c2p,a1
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412 movew #255,d3
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413 c2p_pal_initbcl:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
414 movew a0@+,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 lsrw #4,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
416 andw #15,d0
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 moveq #3,d1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 c2p_pal_initbyte:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 btst d1,d0
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
421 sne d2
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422 negw d2
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423 moveb d2,a1@(0,d1:w)
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425 dbra d1,c2p_pal_initbyte
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
426
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
427 addql #4,a1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 dbra d3,c2p_pal_initbcl
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
430 moveml sp@+,d2-d3
4375
a52047c790a2 Disable C2P routines for Coldfire CPUs
Patrice Mandin <patmandin@gmail.com>
parents: 4159
diff changeset
431 #endif
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
432 rts
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
433
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
434 /* ------------ Buffers ------------ */
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
435
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
436 .bss
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
437
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
438 .even
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
439 .comm _SDL_Atari_C2pConvert,4
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
440 .comm _SDL_Atari_table_c2p,1024
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
441
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
442 .comm c2p_source,4 /* Source framebuffer */
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
443 .comm c2p_dest,4 /* Destination framebuffer */
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
444 .comm c2p_width,4 /* Width of zone to convert */
734
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
445 .comm c2p_height,4 /* Height of zone to convert */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
446 .comm c2p_dblligne,4 /* Double the lines while converting ? */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
447 .comm c2p_srcpitch,4 /* Source pitch */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
448 .comm c2p_dstpitch,4 /* Destination pitch */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
449 .comm c2p_cursrc,4 /* Current source line */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
450 .comm c2p_curdst,4 /* Current destination line */
0310bb01091f New C2P conversion routine
Patrice Mandin <patmandin@gmail.com>
parents: 297
diff changeset
451 .comm c2p_rowlen,2 /* Line length in bytes */
1086
93207759e065 Cleanup C2P routine
Patrice Mandin <patmandin@gmail.com>
parents: 734
diff changeset
452 .comm c2p_row,2 /* Current line number */