1 /*****************************************************************************/
5 /* Assembler output for the sp65 sprite and bitmap utility */
9 /* (C) 2012, 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 /*****************************************************************************/
52 /*****************************************************************************/
54 /*****************************************************************************/
58 void WriteAsmFile (const StrBuf* Data, const Collection* A)
59 /* Write the contents of Data to the given file in assembler (ca65) format */
65 unsigned BytesPerLine = 16;
69 /* Get the file name */
70 const char* Name = NeedAttrVal (A, "name", "write");
72 /* Check for a bytesperline attribute */
73 const char* V = GetAttrVal (A, "bytesperline");
74 if ((V && sscanf (V, "%u%c", &BytesPerLine, &C) != 1) ||
75 (BytesPerLine < 1 || BytesPerLine > 64)) {
76 Error ("Invalid value for attribute `bytesperline'");
79 /* Check for a base attribute */
80 V = GetAttrVal (A, "base");
81 if ((V && sscanf (V, "%u%c", &Base, &C) != 1) ||
82 (Base != 2 && Base != 10 && Base != 16)) {
83 Error ("Invalid value for attribute `base'");
86 /* Open the output file */
87 F = fopen (Name, "w");
89 Error ("Cannot open output file `%s': %s", Name, strerror (errno));
92 /* Write a readable header */
95 "; This file was generated by %s %s\n"
99 GetVersionAsString ());
102 D = SB_GetConstBuf (Data);
103 Size = SB_GetLen (Data);
108 /* Output one line */
109 unsigned Chunk = Size;
110 if (Chunk > BytesPerLine) {
111 Chunk = BytesPerLine;
113 fputs (" .byte ", F);
114 for (I = 0; I < Chunk; ++I) {
115 unsigned char V = *D++;
121 fprintf (F, "%%%u%u%u%u%u%u%u%u",
122 (V >> 7) & 0x01, (V >> 6) & 0x01,
123 (V >> 5) & 0x01, (V >> 4) & 0x01,
124 (V >> 3) & 0x01, (V >> 2) & 0x01,
125 (V >> 1) & 0x01, (V >> 0) & 0x01);
129 fprintf (F, "%u", V);
133 fprintf (F, "$%02X", V);
140 /* Bump the counters */
144 /* Add an empty line at the end */
148 if (fclose (F) != 0) {
149 Error ("Error closing output file `%s': %s", Name, strerror (errno));