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 /*****************************************************************************/
54 /*****************************************************************************/
56 /*****************************************************************************/
60 /* Single linked list of lines */
61 ListLine* LineList = 0; /* List of listing lines */
62 ListLine* LineCur = 0; /* Current listing line */
63 ListLine* LineLast = 0; /* Last (current) listing line */
65 /* Page and other formatting */
66 int PageLength = -1; /* Length of a listing page */
67 static unsigned PageNumber = 1; /* Current listing page number */
68 static unsigned PageLines = 0; /* Current line on page */
69 static unsigned ListBytes = 12; /* Number of bytes to list for one line */
71 /* Switch the listing on/off */
72 static int ListingEnabled = 1; /* Enabled if > 0 */
76 /*****************************************************************************/
78 /*****************************************************************************/
82 void NewListingLine (const char* Line, unsigned char File, unsigned char Depth)
83 /* Create a new ListLine struct and insert it */
85 /* Store only if listing is enabled */
90 /* Get the length of the line */
91 unsigned Len = strlen (Line);
93 /* Ignore trailing newlines */
94 while (Len > 0 && Line[Len-1] == '\n') {
99 L = xmalloc (sizeof (ListLine) + Len);
101 /* Initialize the fields. */
106 L->Reloc = RelocMode;
109 L->Output = (ListingEnabled > 0);
110 L->ListBytes = (unsigned char) ListBytes;
111 memcpy (L->Line, Line, Len);
112 L->Line [Len] = '\0';
114 /* Insert the line into the list of lines */
126 void EnableListing (void)
127 /* Enable output of lines to the listing */
130 /* If we're about to enable the listing, do this for the current line
131 * also, so we will see the source line that did this.
133 if (ListingEnabled++ == 0) {
141 void DisableListing (void)
142 /* Disable output of lines to the listing */
145 if (ListingEnabled == 0) {
146 /* Cannot switch the listing off once more */
147 Error (ERR_COUNTER_UNDERFLOW);
156 void SetListBytes (int Bytes)
157 /* Set the maximum number of bytes listed for one line */
160 Bytes = 0; /* Encode "unlimited" as zero */
167 void InitListingLine (void)
168 /* Initialize the current listing line */
171 /* Make the last loaded line the current line */
172 /* ###### This code is a hack! We really need to do it right
173 * as soon as we know, how:-(
175 if (LineCur && LineCur->Next && LineCur->Next != LineLast) {
176 ListLine* L = LineCur;
179 /* Set the values for this line */
182 L->Reloc = RelocMode;
183 L->Output = (ListingEnabled > 0);
184 L->ListBytes = (unsigned char) ListBytes;
185 } while (L->Next != LineLast);
189 /* Set the values for this line */
190 CHECK (LineCur != 0);
191 LineCur->PC = GetPC ();
192 LineCur->Reloc = RelocMode;
193 LineCur->Output = (ListingEnabled > 0);
194 LineCur->ListBytes = (unsigned char) ListBytes;
200 static char* AddHex (char* S, unsigned Val)
201 /* Add a hex byte in ASCII to the given string and return the new pointer */
203 static const char HexTab [16] = {
204 '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
207 *S++ = HexTab [(Val >> 4) & 0x0F];
208 *S++ = HexTab [Val & 0x0F];
215 static void PrintPageHeader (FILE* F, const ListLine* L)
216 /* Print the header for a new page. It is assumed that the given line is the
217 * last line of the previous page.
220 /* Print the header on the new page */
222 "ca65 V%u.%u.%u - (C) Copyright 1998-2000 Ullrich von Bassewitz\n"
226 VER_MAJOR, VER_MINOR, VER_PATCH,
228 GetFileName (L->File));
230 /* Count pages, reset lines */
237 static void PrintLine (FILE* F, const char* Header, const char* Line, const ListLine* L)
238 /* Print one line to the listing file, adding a newline and counting lines */
240 /* Print the given line */
241 fprintf (F, "%s%s\n", Header, Line);
243 /* Increment the current line */
246 /* Switch to a new page if needed. Do not switch, if the current line is
247 * the last one, to avoid pages that consist of just the header.
249 if (PageLength > 0 && PageLines >= PageLength && L->Next != 0) {
252 /* Print the header on the new page */
253 PrintPageHeader (F, L);
259 static char* AddMult (char* S, char C, unsigned Count)
260 /* Add multiple instances of character C to S, return updated S. */
262 memset (S, C, Count);
268 static char* MakeLineHeader (char* H, const ListLine* L)
269 /* Prepare the line header */
274 /* Setup the PC mode */
275 Mode = (L->Reloc)? 'r' : ' ';
277 /* Set up the include depth */
278 Depth = (L->Depth < 10)? L->Depth + '0' : '+';
280 /* Format the line */
281 sprintf (H, "%06lX%c %c", L->PC, Mode, Depth);
282 memset (H+9, ' ', LINE_HEADER_LEN-9);
284 /* Return the buffer */
290 void CreateListing (void)
291 /* Create the listing */
296 char HeaderBuf [LINE_HEADER_LEN+1];
298 /* Create the name of the listing file if needed */
300 ListFile = MakeFilename (InFile, ListExt);
303 /* Open the real listing file */
304 F = fopen (ListFile, "w");
306 Fatal (FAT_CANNOT_OPEN_LISTING, strerror (errno));
309 /* Reset variables, print the header for the first page */
311 PrintPageHeader (F, LineList);
313 /* Terminate the header buffer. The last byte will never get overwritten */
314 HeaderBuf [LINE_HEADER_LEN] = '\0';
316 /* Walk through all listing lines */
326 /* If we should not output this line, go to the next */
327 if (L->Output == 0) {
332 /* If we don't have a fragment list for this line, things are easy */
333 if (L->FragList == 0) {
334 PrintLine (F, MakeLineHeader (HeaderBuf, L), L->Line, L);
339 /* Count the number of bytes in the complete fragment list */
344 Frag = Frag->LineList;
347 /* Allocate memory for the given number of bytes */
348 Buf = xmalloc (Count*2+1);
350 /* Copy an ASCII representation of the bytes into the buffer */
355 /* Write data depending on the type */
356 switch (Frag->Type) {
359 for (I = 0; I < Frag->Len; ++I) {
360 B = AddHex (B, Frag->V.Data[I]);
366 B = AddMult (B, 'r', Frag->Len*2);
370 B = AddMult (B, 'x', Frag->Len*2);
374 Internal ("Invalid fragment type: %u", Frag->Type);
379 Frag = Frag->LineList;
383 /* Limit the number of bytes actually printed */
384 if (L->ListBytes != 0) {
386 if (Count > L->ListBytes) {
387 Count = L->ListBytes;
391 /* Output the data. The format of a listing line is:
393 * PPPPPPm I 11 22 33 44
398 * m is the mode ('r' or empty)
399 * I is the include level
400 * 11 .. are code or data bytes
409 /* Prepare the line header */
410 MakeLineHeader (HeaderBuf, L);
412 /* Get the number of bytes for the next line */
419 /* Increment the program counter. Since we don't need the PC stored
420 * in the LineList object for anything else, just increment this
425 /* Copy the bytes into the line */
427 for (I = 0; I < Chunk; ++I) {
433 /* Output this line */
434 PrintLine (F, HeaderBuf, Line, L);
436 /* Don't output a line twice */
441 /* Delete the temporary buffer */
449 /* Close the listing file */