1 /*****************************************************************************/
5 /* Optimize addition sequences */
9 /* (C) 2001-2005, Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
46 /*****************************************************************************/
47 /* Optimize additions */
48 /*****************************************************************************/
52 unsigned OptAdd1 (CodeSeg* S);
53 /* Search for the sequence
71 unsigned OptAdd2 (CodeSeg* S);
72 /* Search for the sequence
96 ** provided that a/x is not used later.
99 unsigned OptAdd3 (CodeSeg* S);
100 /* Search for the sequence
116 unsigned OptAdd4 (CodeSeg* S);
117 /* Search for the sequence
135 unsigned OptAdd5 (CodeSeg* S);
136 /* Search for a call to incaxn and replace it by an 8 bit add if the X register
137 ** is not used later.
140 unsigned OptAdd6 (CodeSeg* S);
141 /* Search for the sequence
148 ** and remove the handling of the high byte if X is not used later.
153 /* End of coptadd.h */