BuildROMs enhancements.
- Added support to allow proper building of ROM dependent modules if the ROM image file is missing but the desired ROM image include file exists and has the correct/expected contents. - Added support to help new ROMs to be added to the set of ROMs which are translated/tested. - Added command Usage to program which is displayed if invoked with /? or /help Usage displays the current set of ROM images which are known.
This commit is contained in:
Mark Pizzolato
parent
22b0e564a2
commit
b816a42177
1 changed files with 211 additions and 44 deletions
255
sim_BuildROMs.c
255
sim_BuildROMs.c
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@ -23,26 +23,30 @@
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Robert M Supnik.
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-
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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/*
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This program builds C include files which can be used to contain the contents
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of ROM or other boot code needed by simulators.
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Current Internal ROM files being built:
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ROM/Boot File: Include File:
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=======================================
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VAX/ka655x.bin VAX/vax_ka655x_bin.h
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VAX/vmb.exe VAX/vax780_vmb_exe.h
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ROM/Boot File: Include File: Size: Checksum:
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=======================================================================================
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*/
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struct ROM_File_Descriptor {
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char *BinaryName; char *IncludeFileName; size_t expected_size; unsigned int checksum; char *ArrayName;} ROMs[] = {
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{"VAX/ka655x.bin", "VAX/vax_ka655x_bin.h", 131072, 0xFF7673B6, "vax_ka655x_bin"},
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{"VAX/vmb.exe", "VAX/vax780_vmb_exe.h", 44544, 0xFFC014CC, "vax780_vmb_exe"},
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};
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#include <time.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#include <sys/stat.h>
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#if defined(_WIN32)
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@ -53,6 +57,114 @@
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#include <utime.h>
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#endif
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int sim_read_ROM_include(const char *include_filename,
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int *psize,
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unsigned char **pROMData,
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unsigned int *pchecksum,
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char **prom_array_name)
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{
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FILE *iFile;
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char line[256];
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size_t i;
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size_t bytes_written = 0;
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size_t allocated_size = 0;
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*psize = 0;
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*pchecksum = 0;
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*pROMData = NULL;
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*prom_array_name = NULL;
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if (NULL == (iFile = fopen (include_filename, "r")))
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return -1;
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memset (line, 0, sizeof (line));
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while (fgets (line, sizeof(line)-1, iFile)) {
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unsigned int byte;
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char *c;
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switch (line[0]) {
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case '#':
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case ' ':
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case '/':
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case '*':
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case '\n':
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break;
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case 'u': /* unsigned char {array_name}[] */
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*prom_array_name = calloc(512, sizeof(char));
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if (1 == sscanf (line, "unsigned char %s[]", *prom_array_name)) {
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c = strchr (*prom_array_name, '[');
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if (c)
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*c = '\0';
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}
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break;
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case '0': /* line containing byte data */
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c = line;
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while (1 == sscanf (c, "0x%2Xd,", &byte)) {
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if (bytes_written >= allocated_size) {
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allocated_size += 2048;
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*pROMData = realloc(*pROMData, allocated_size);
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}
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*(*pROMData + bytes_written++) = byte;
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c += 5;
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}
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break;
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}
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if (strchr (line, '}'))
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break;
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}
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fclose (iFile);
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for (i=0; i<bytes_written; ++i)
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*pchecksum += *(*pROMData + i);
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*pchecksum = ~*pchecksum;
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*psize = bytes_written;
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return 0;
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}
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int sim_make_ROMs_entry(const char *rom_filename)
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{
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FILE *rFile;
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struct stat statb;
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unsigned char *ROMData = NULL;
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unsigned int checksum = 0;
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char *c;
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int i;
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char include_filename[512];
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char array_name[512];
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if (NULL == (rFile = fopen (rom_filename, "rb"))) {
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printf ("Error Opening ROM binary file '%s' for input: %s\n", rom_filename, strerror(errno));
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return -1;
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}
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if (stat (rom_filename, &statb)) {
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printf ("Error stating '%s': %s\n", rom_filename, strerror(errno));
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fclose (rFile);
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return -1;
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}
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ROMData = malloc (statb.st_size);
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if ((size_t)(statb.st_size) != fread (ROMData, sizeof(*ROMData), statb.st_size, rFile)) {
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printf ("Error reading '%s': %s\n", rom_filename, strerror(errno));
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fclose (rFile);
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free (ROMData);
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return -1;
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}
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fclose (rFile);
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for (i=0; i<statb.st_size; ++i)
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checksum += ROMData[i];
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checksum = ~checksum;
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sprintf (include_filename, "%s.h", rom_filename);
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if ((c = strchr (include_filename, '.')))
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*c = '_';
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if (!(c = strchr (rom_filename, '/')))
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c = strchr (rom_filename, '/');
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strcpy (array_name, c);
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if ((c = strchr (array_name, '.')))
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*c = '_';
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printf ("The ROMs array entry for this new ROM image file should look something like:\n");
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printf ("{\"%s\", \"%s\", %d, 0x%08X, \"%s\"}\n",
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rom_filename, include_filename, (int)(statb.st_size), checksum, array_name);
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return 1;
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}
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int sim_make_ROM_include(const char *rom_filename,
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int expected_size,
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unsigned int expected_checksum,
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@ -63,14 +175,33 @@ FILE *rFile;
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FILE *iFile;
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time_t now;
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int bytes_written = 0;
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int include_bytes;
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int c;
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struct stat statb;
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unsigned char *ROMData = NULL;
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unsigned char *include_ROMData = NULL;
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char *include_array_name = NULL;
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unsigned int checksum = 0;
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unsigned int include_checksum;
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if (NULL == (rFile = fopen (rom_filename, "rb"))) {
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printf ("Error Opening '%s' for input: %s\n", rom_filename, strerror(errno));
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return -1;
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printf ("Error Opening ROM binary file '%s' for input: %s\n", rom_filename, strerror(errno));
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if (0 != sim_read_ROM_include(include_filename,
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&include_bytes,
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&include_ROMData,
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&include_checksum,
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&include_array_name))
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return -1;
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c = ((include_checksum == expected_checksum) &&
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(include_bytes == expected_size) &&
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(0 == strcmp(include_array_name, rom_array_name)));
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free(include_ROMData);
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free(include_array_name);
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if (!c)
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printf ("Existing ROM include file: %s has unexpected content\n", include_filename);
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else
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printf ("Existing ROM include file: %s looks good\n", include_filename);
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return (c ? 0 : -1);
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}
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if (stat (rom_filename, &statb)) {
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printf ("Error stating '%s': %s\n", rom_filename, strerror(errno));
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@ -108,35 +239,18 @@ if ((expected_checksum != 0) && (checksum != expected_checksum)) {
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* If the target include file already exists, determine if it contains the exact
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* data in the base ROM image. If so, then we are already done
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*/
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if (NULL != (iFile = fopen (include_filename, "r"))) {
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unsigned char *IncludeData = NULL;
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char line[256];
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int Difference = 0;
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IncludeData = malloc (statb.st_size);
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while (fgets (line, sizeof(line), iFile)) {
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unsigned int byte;
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char *c;
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if (memcmp ("0x",line,2))
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continue;
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c = line;
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while (1 == sscanf (c, "0x%2Xd,", &byte)) {
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if (bytes_written >= statb.st_size)
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Difference = 1;
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else
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IncludeData[bytes_written++] = byte;
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c += 5;
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}
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if ((strchr (line,'}')) || Difference)
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break;
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}
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fclose (iFile);
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if (!Difference)
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Difference = memcmp (IncludeData, ROMData, statb.st_size);
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free (IncludeData);
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if (!Difference) {
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if (0 == sim_read_ROM_include(include_filename,
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&include_bytes,
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&include_ROMData,
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&include_checksum,
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&include_array_name)) {
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c = ((include_checksum == expected_checksum) &&
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(include_bytes == expected_size) &&
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(0 == strcmp (include_array_name, rom_array_name)) &&
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(0 == memcmp (include_ROMData, ROMData, include_bytes)));
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free(include_ROMData);
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free(include_array_name);
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if (c) {
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free (ROMData);
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return 0;
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}
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@ -153,6 +267,7 @@ fprintf (iFile, "/*\n");
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fprintf (iFile, " %s produced at %s", include_filename, ctime(&now));
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fprintf (iFile, " from %s which was last modified at %s", rom_filename, ctime(&statb.st_mtime));
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fprintf (iFile, " file size: %d (0x%X) - checksum: 0x%08X\n", (int)statb.st_size, (int)statb.st_size, checksum);
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fprintf (iFile, " This file is a generated file and should NOT be edited or changed by hand.\n");
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fprintf (iFile, "*/\n");
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fprintf (iFile, "unsigned char %s[] = {", rom_array_name);
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for (bytes_written=0;bytes_written<statb.st_size; ++bytes_written) {
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@ -175,11 +290,63 @@ if (1) { /* Set Modification Time on the include file to be the modification tim
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return 0;
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}
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void
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Usage(void)
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{
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int i;
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printf ("sim_BuildROMs Usage:\n");
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printf ("sim_BuildROMs\n");
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printf (" invoked with no arguments will verify and/or produce all\n");
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printf (" known ROM include files\n");
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printf ("sim_BuildROMs -checksum ROM-File-name\n");
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printf (" computes the checksum on a ROM image file and provides a\n");
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printf (" template which can be added to the ROMs array in the\n");
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printf (" source file sim_BuildROMs.c\n");
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printf ("sim_BuildROMs ROM-File-name\n");
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printf (" if the 'ROM-File-name' specified is a file name already\n");
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printf (" contained in the ROMs array, only that ROM image file's\n");
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printf (" include file will be verified and/or created\n");
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printf (" if the 'ROM-File-name' specified is not a file name already\n");
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printf (" contained in the ROMs array, that ROM's checksum is computed\n");
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printf (" and a template which can be added to the ROMs array in the\n");
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printf (" source file sim_BuildROMs.c is displayed.\n");
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printf ("\n");
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printf ("Current ROM files:\n");
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printf ("\n");
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printf ("BinaryName: IncludeFileName: Size: Checksum: ROM Array Name:\n");
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printf ("=============================================================================\n");
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for (i=0; i<sizeof(ROMs)/sizeof(ROMs[0]); ++i)
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printf("%-17s%-23s%8d 0x%08X %s\n", ROMs[i].BinaryName, ROMs[i].IncludeFileName, (int)ROMs[i].expected_size, ROMs[i].checksum, ROMs[i].ArrayName);
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exit(2);
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}
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int
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main(int argc, char **argv)
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{
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int i;
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int status = 0;
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status += sim_make_ROM_include ("VAX/ka655x.bin", 131072, 0xFF7673B6, "VAX/vax_ka655x_bin.h", "vax_ka655x_bin");
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status += sim_make_ROM_include ("VAX/vmb.exe", 44544, 0xFFC014CC, "VAX/vax780_vmb_exe.h", "vax780_vmb_exe");
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if (argc == 1) { /* invoked without any arguments */
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for (i=0; i<sizeof(ROMs)/sizeof(ROMs[0]); ++i)
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status += sim_make_ROM_include (ROMs[i].BinaryName, ROMs[i].expected_size, ROMs[i].checksum, ROMs[i].IncludeFileName, ROMs[i].ArrayName);
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exit((status == 0) ? 0 : 2);
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}
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if ((0 == strcmp(argv[1], "/?")) ||
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(0 == strcmp(argv[1], "-?")) ||
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(0 == strcmp(argv[1], "/help")) ||
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(0 == strcmp(argv[1], "-help")))
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Usage();
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if ((0 == strcmp(argv[1], "-checksum")) && (argc > 2))
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status = sim_make_ROMs_entry (argv[2]);
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else {
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for (i=0; i<sizeof(ROMs)/sizeof(ROMs[0]); ++i)
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if (0 == strcmp(argv[1], ROMs[i].BinaryName))
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break;
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if (i == sizeof(ROMs)/sizeof(ROMs[0]))
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status = sim_make_ROMs_entry (argv[1]);
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else
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status = sim_make_ROM_include (ROMs[i].BinaryName, ROMs[i].expected_size, ROMs[i].checksum, ROMs[i].IncludeFileName, ROMs[i].ArrayName);
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}
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exit((status == 0) ? 0 : 2);
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}
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