1 /*****************************************************************************/
5 /* Listing support for the ca65 crossassembler */
9 /* (C) 2000 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
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 /*****************************************************************************/
55 /*****************************************************************************/
57 /*****************************************************************************/
61 /* Single linked list of lines */
62 ListLine* LineList = 0; /* List of listing lines */
63 ListLine* LineCur = 0; /* Current listing line */
64 ListLine* LineLast = 0; /* Last (current) listing line */
66 /* Page and other formatting */
67 int PageLength = -1; /* Length of a listing page */
68 static unsigned PageNumber = 1; /* Current listing page number */
69 static unsigned PageLines = 0; /* Current line on page */
70 static unsigned ListBytes = 12; /* Number of bytes to list for one line */
72 /* Switch the listing on/off */
73 static int ListingEnabled = 1; /* Enabled if > 0 */
77 /*****************************************************************************/
79 /*****************************************************************************/
83 void NewListingLine (const char* Line, unsigned char File, unsigned char Depth)
84 /* Create a new ListLine struct and insert it */
86 /* Store only if listing is enabled */
91 /* Get the length of the line */
92 unsigned Len = strlen (Line);
94 /* Ignore trailing newlines */
95 while (Len > 0 && Line[Len-1] == '\n') {
100 L = xmalloc (sizeof (ListLine) + Len);
102 /* Initialize the fields. */
107 L->Reloc = RelocMode;
110 L->Output = (ListingEnabled > 0);
111 L->ListBytes = (unsigned char) ListBytes;
112 memcpy (L->Line, Line, Len);
113 L->Line [Len] = '\0';
115 /* Insert the line into the list of lines */
127 void EnableListing (void)
128 /* Enable output of lines to the listing */
131 /* If we're about to enable the listing, do this for the current line
132 * also, so we will see the source line that did this.
134 if (ListingEnabled++ == 0) {
142 void DisableListing (void)
143 /* Disable output of lines to the listing */
146 if (ListingEnabled == 0) {
147 /* Cannot switch the listing off once more */
148 Error (ERR_COUNTER_UNDERFLOW);
157 void SetListBytes (int Bytes)
158 /* Set the maximum number of bytes listed for one line */
161 Bytes = 0; /* Encode "unlimited" as zero */
168 void InitListingLine (void)
169 /* Initialize the current listing line */
172 /* Make the last loaded line the current line */
173 /* ###### This code is a hack! We really need to do it right
174 * as soon as we know, how:-(
176 if (LineCur && LineCur->Next && LineCur->Next != LineLast) {
177 ListLine* L = LineCur;
180 /* Set the values for this line */
183 L->Reloc = RelocMode;
184 L->Output = (ListingEnabled > 0);
185 L->ListBytes = (unsigned char) ListBytes;
186 } while (L->Next != LineLast);
190 /* Set the values for this line */
191 CHECK (LineCur != 0);
192 LineCur->PC = GetPC ();
193 LineCur->Reloc = RelocMode;
194 LineCur->Output = (ListingEnabled > 0);
195 LineCur->ListBytes = (unsigned char) ListBytes;
201 static char* AddHex (char* S, unsigned Val)
202 /* Add a hex byte in ASCII to the given string and return the new pointer */
204 static const char HexTab [16] = {
205 '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
208 *S++ = HexTab [(Val >> 4) & 0x0F];
209 *S++ = HexTab [Val & 0x0F];
216 static void PrintPageHeader (FILE* F, const ListLine* L)
217 /* Print the header for a new page. It is assumed that the given line is the
218 * last line of the previous page.
221 /* Print the header on the new page */
223 "ca65 V%u.%u.%u - (C) Copyright 1998-2000 Ullrich von Bassewitz\n"
227 VER_MAJOR, VER_MINOR, VER_PATCH,
229 GetFileName (L->File));
231 /* Count pages, reset lines */
238 static void PrintLine (FILE* F, const char* Header, const char* Line, const ListLine* L)
239 /* Print one line to the listing file, adding a newline and counting lines */
241 /* Print the given line */
242 fprintf (F, "%s%s\n", Header, Line);
244 /* Increment the current line */
247 /* Switch to a new page if needed. Do not switch, if the current line is
248 * the last one, to avoid pages that consist of just the header.
250 if (PageLength > 0 && PageLines >= PageLength && L->Next != 0) {
253 /* Print the header on the new page */
254 PrintPageHeader (F, L);
260 static char* AddMult (char* S, char C, unsigned Count)
261 /* Add multiple instances of character C to S, return updated S. */
263 memset (S, C, Count);
269 static char* MakeLineHeader (char* H, const ListLine* L)
270 /* Prepare the line header */
275 /* Setup the PC mode */
276 Mode = (L->Reloc)? 'r' : ' ';
278 /* Set up the include depth */
279 Depth = (L->Depth < 10)? L->Depth + '0' : '+';
281 /* Format the line */
282 sprintf (H, "%06lX%c %c", L->PC, Mode, Depth);
283 memset (H+9, ' ', LINE_HEADER_LEN-9);
285 /* Return the buffer */
291 void CreateListing (void)
292 /* Create the listing */
297 char HeaderBuf [LINE_HEADER_LEN+1];
299 /* Create the name of the listing file if needed */
301 ListFile = MakeFilename (InFile, ListExt);
304 /* Open the real listing file */
305 F = fopen (ListFile, "w");
307 Fatal (FAT_CANNOT_OPEN_LISTING, strerror (errno));
310 /* Reset variables, print the header for the first page */
312 PrintPageHeader (F, LineList);
314 /* Terminate the header buffer. The last byte will never get overwritten */
315 HeaderBuf [LINE_HEADER_LEN] = '\0';
317 /* Walk through all listing lines */
327 /* If we should not output this line, go to the next */
328 if (L->Output == 0) {
333 /* If we don't have a fragment list for this line, things are easy */
334 if (L->FragList == 0) {
335 PrintLine (F, MakeLineHeader (HeaderBuf, L), L->Line, L);
340 /* Count the number of bytes in the complete fragment list */
345 Frag = Frag->LineList;
348 /* Allocate memory for the given number of bytes */
349 Buf = xmalloc (Count*2+1);
351 /* Copy an ASCII representation of the bytes into the buffer */
356 /* Write data depending on the type */
357 switch (Frag->Type) {
360 for (I = 0; I < Frag->Len; ++I) {
361 B = AddHex (B, Frag->V.Data[I]);
367 B = AddMult (B, 'r', Frag->Len*2);
371 B = AddMult (B, 'x', Frag->Len*2);
375 Internal ("Invalid fragment type: %u", Frag->Type);
380 Frag = Frag->LineList;
384 /* Limit the number of bytes actually printed */
385 if (L->ListBytes != 0) {
387 if (Count > L->ListBytes) {
388 Count = L->ListBytes;
392 /* Output the data. The format of a listing line is:
394 * PPPPPPm I 11 22 33 44
399 * m is the mode ('r' or empty)
400 * I is the include level
401 * 11 .. are code or data bytes
410 /* Prepare the line header */
411 MakeLineHeader (HeaderBuf, L);
413 /* Get the number of bytes for the next line */
420 /* Increment the program counter. Since we don't need the PC stored
421 * in the LineList object for anything else, just increment this
426 /* Copy the bytes into the line */
428 for (I = 0; I < Chunk; ++I) {
434 /* Output this line */
435 PrintLine (F, HeaderBuf, Line, L);
437 /* Don't output a line twice */
442 /* Delete the temporary buffer */
450 /* Close the listing file */