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-rw-r--r--qemu/roms/vgabios/biossums.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/qemu/roms/vgabios/biossums.c b/qemu/roms/vgabios/biossums.c
deleted file mode 100644
index d5816f420..000000000
--- a/qemu/roms/vgabios/biossums.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/* biossums.c --- written by Eike W. for the Bochs BIOS */
-/* adapted for the LGPL'd VGABIOS by vruppert */
-
-/* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-typedef unsigned char byte;
-
-void check( int value, char* message );
-
-#define MAX_BIOS_DATA 0x10000
-
-long chksum_bios_get_offset( byte* data, long offset );
-byte chksum_bios_calc_value( byte* data, long offset );
-byte chksum_bios_get_value( byte* data, long offset );
-void chksum_bios_set_value( byte* data, long offset, byte value );
-
-#define PMID_LEN 20
-#define PMID_CHKSUM 19
-
-long chksum_pmid_get_offset( byte* data, long offset );
-byte chksum_pmid_calc_value( byte* data, long offset );
-byte chksum_pmid_get_value( byte* data, long offset );
-void chksum_pmid_set_value( byte* data, long offset, byte value );
-
-#define PCIR_LEN 24
-
-long chksum_pcir_get_offset( byte* data, long offset );
-
-
-byte bios_data[MAX_BIOS_DATA];
-long bios_len;
-
-
-int main(int argc, char* argv[])
-{
- FILE* stream;
- long offset, tmp_offset, pcir_offset;
- byte bios_len_byte, cur_val = 0, new_val = 0;
- int hits, modified;
-
- if (argc != 2) {
- printf( "Error. Need a file-name as an argument.\n" );
- exit( EXIT_FAILURE );
- }
-
- if ((stream = fopen(argv[1], "rb")) == NULL) {
- printf("Error opening %s for reading.\n", argv[1]);
- exit(EXIT_FAILURE);
- }
- memset(bios_data, 0, MAX_BIOS_DATA);
- bios_len = fread(bios_data, 1, MAX_BIOS_DATA, stream);
- if (bios_len > MAX_BIOS_DATA) {
- printf("Error reading max. 65536 Bytes from %s.\n", argv[1]);
- fclose(stream);
- exit(EXIT_FAILURE);
- }
- fclose(stream);
- modified = 0;
- if (bios_len < 0x8000) {
- bios_len = 0x8000;
- modified = 1;
- } else if ((bios_len & 0x1FF) != 0) {
- bios_len = (bios_len + 0x200) & ~0x1FF;
- modified = 1;
- }
- bios_len_byte = (byte)(bios_len / 512);
- if (bios_len_byte != bios_data[2]) {
- if (modified == 0) {
- bios_len += 0x200;
- }
- bios_data[2] = (byte)(bios_len / 512);
- modified = 1;
- }
-
- hits = 0;
- offset = 0L;
- while( (tmp_offset = chksum_pmid_get_offset( bios_data, offset )) != -1L ) {
- offset = tmp_offset;
- cur_val = chksum_pmid_get_value( bios_data, offset );
- new_val = chksum_pmid_calc_value( bios_data, offset );
- printf( "\nPMID entry at: 0x%4lX\n", offset );
- printf( "Current checksum: 0x%02X\n", cur_val );
- printf( "Calculated checksum: 0x%02X ", new_val );
- hits++;
- }
- if ((hits == 1) && (cur_val != new_val)) {
- printf("Setting checksum.");
- chksum_pmid_set_value( bios_data, offset, new_val );
- if (modified == 0) {
- bios_len += 0x200;
- bios_data[2]++;
- }
- modified = 1;
- }
- if (hits >= 2) {
- printf( "Multiple PMID entries! No checksum set." );
- }
- if (hits) {
- printf("\n");
- }
-
- offset = 0L;
- pcir_offset = chksum_pcir_get_offset( bios_data, offset );
- if (pcir_offset != -1L) {
- if (bios_data[pcir_offset + 16] != bios_data[2]) {
- bios_data[pcir_offset + 16] = bios_data[2];
- if (modified == 0) {
- bios_len += 0x200;
- bios_data[2]++;
- bios_data[pcir_offset + 16]++;
- }
- modified = 1;
- }
- }
-
- offset = 0L;
- do {
- offset = chksum_bios_get_offset(bios_data, offset);
- cur_val = chksum_bios_get_value(bios_data, offset);
- new_val = chksum_bios_calc_value(bios_data, offset);
- if ((cur_val != new_val) && (modified == 0)) {
- bios_len += 0x200;
- bios_data[2]++;
- if (pcir_offset != -1L) {
- bios_data[pcir_offset + 16]++;
- }
- modified = 1;
- } else {
- printf("\nBios checksum at: 0x%4lX\n", offset);
- printf("Current checksum: 0x%02X\n", cur_val);
- printf("Calculated checksum: 0x%02X ", new_val);
- if (cur_val != new_val) {
- printf("Setting checksum.");
- chksum_bios_set_value(bios_data, offset, new_val);
- cur_val = new_val;
- modified = 1;
- }
- printf( "\n" );
- }
- } while (cur_val != new_val);
-
- if (modified == 1) {
- if ((stream = fopen( argv[1], "wb")) == NULL) {
- printf("Error opening %s for writing.\n", argv[1]);
- exit(EXIT_FAILURE);
- }
- if (fwrite(bios_data, 1, bios_len, stream) < bios_len) {
- printf("Error writing %d KBytes to %s.\n", bios_len / 1024, argv[1]);
- fclose(stream);
- exit(EXIT_FAILURE);
- }
- fclose(stream);
- }
-
- return (EXIT_SUCCESS);
-}
-
-
-void check( int okay, char* message ) {
-
- if( !okay ) {
- printf( "\n\nError. %s.\n", message );
- exit( EXIT_FAILURE );
- }
-}
-
-
-long chksum_bios_get_offset( byte* data, long offset ) {
-
- return (bios_len - 1);
-}
-
-
-byte chksum_bios_calc_value( byte* data, long offset ) {
-
- int i;
- byte sum;
-
- sum = 0;
- for( i = 0; i < offset; i++ ) {
- sum = sum + *( data + i );
- }
- sum = -sum; /* iso ensures -s + s == 0 on unsigned types */
- return( sum );
-}
-
-
-byte chksum_bios_get_value( byte* data, long offset ) {
-
- return( *( data + offset ) );
-}
-
-
-void chksum_bios_set_value( byte* data, long offset, byte value ) {
-
- *( data + offset ) = value;
-}
-
-
-byte chksum_pmid_calc_value( byte* data, long offset ) {
-
- int i;
- int len;
- byte sum;
-
- len = PMID_LEN;
- check((offset + len) <= (bios_len - 1), "PMID entry length out of bounds" );
- sum = 0;
- for( i = 0; i < len; i++ ) {
- if( i != PMID_CHKSUM ) {
- sum = sum + *( data + offset + i );
- }
- }
- sum = -sum;
- return( sum );
-}
-
-
-long chksum_pmid_get_offset( byte* data, long offset ) {
-
- long result = -1L;
-
- while ((offset + PMID_LEN) < (bios_len - 1)) {
- offset = offset + 1;
- if( *( data + offset + 0 ) == 'P' && \
- *( data + offset + 1 ) == 'M' && \
- *( data + offset + 2 ) == 'I' && \
- *( data + offset + 3 ) == 'D' ) {
- result = offset;
- break;
- }
- }
- return( result );
-}
-
-
-byte chksum_pmid_get_value( byte* data, long offset ) {
-
- check((offset + PMID_CHKSUM) <= (bios_len - 1), "PMID checksum out of bounds" );
- return( *( data + offset + PMID_CHKSUM ) );
-}
-
-
-void chksum_pmid_set_value( byte* data, long offset, byte value ) {
-
- check((offset + PMID_CHKSUM) <= (bios_len - 1), "PMID checksum out of bounds" );
- *( data + offset + PMID_CHKSUM ) = value;
-}
-
-
-long chksum_pcir_get_offset( byte* data, long offset ) {
-
- long result = -1L;
-
- while ((offset + PCIR_LEN) < (bios_len - 1)) {
- offset = offset + 1;
- if( *( data + offset + 0 ) == 'P' && \
- *( data + offset + 1 ) == 'C' && \
- *( data + offset + 2 ) == 'I' && \
- *( data + offset + 3 ) == 'R' ) {
- result = offset;
- break;
- }
- }
- return( result );
-}