mirror of
https://github.com/xcat2/xNBA.git
synced 2024-12-15 15:51:44 +00:00
a4143e8c87
automatically linked in on demand. Corrected warnings in misc.c. strtoul() really should be unsigned long strtoul ( const char *p, const char **endp, int base ) but such is not the ANSI standard.
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
#include <stdint.h>
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#include <io.h>
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#include <console.h>
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void pause ( void ) {
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printf ( "\nPress a key" );
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getchar();
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printf ( "\r \r" );
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}
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void more ( void ) {
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printf ( "---more---" );
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getchar();
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printf ( "\r \r" );
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}
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/* Produce a paged hex dump of the specified data and length */
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void hex_dump ( const char *data, const unsigned int len ) {
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unsigned int index;
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for ( index = 0; index < len; index++ ) {
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if ( ( index % 16 ) == 0 ) {
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printf ( "\n" );
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}
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if ( ( index % 368 ) == 352 ) {
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more();
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}
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if ( ( index % 16 ) == 0 ) {
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printf ( "%X [%X] : %hX :", data + index,
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virt_to_phys ( data + index ), index );
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}
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printf ( " %hhX", data[index] );
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}
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printf ( "\n" );
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}
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#define GUARD_SYMBOL ( ( 'M' << 24 ) | ( 'I' << 16 ) | ( 'N' << 8 ) | 'E' )
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/* Fill a region with guard markers. We use a 4-byte pattern to make
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* it less likely that check_region will find spurious 1-byte regions
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* of non-corruption.
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*/
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void guard_region ( void *region, size_t len ) {
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uint32_t offset = 0;
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len &= ~0x03;
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for ( offset = 0; offset < len ; offset += 4 ) {
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*((uint32_t *)(region + offset)) = GUARD_SYMBOL;
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}
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}
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/* Check a region that has been guarded with guard_region() for
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* corruption.
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*/
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int check_region ( void *region, size_t len ) {
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uint8_t corrupted = 0;
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uint8_t in_corruption = 0;
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uint32_t offset = 0;
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uint32_t test = 0;
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len &= ~0x03;
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for ( offset = 0; offset < len ; offset += 4 ) {
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test = *((uint32_t *)(region + offset)) = GUARD_SYMBOL;
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if ( ( in_corruption == 0 ) &&
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( test != GUARD_SYMBOL ) ) {
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/* Start of corruption */
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if ( corrupted == 0 ) {
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corrupted = 1;
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printf ( "Region %#x-%#x (physical %#x-%#x) "
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"corrupted\n",
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region, region + len,
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virt_to_phys ( region ),
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virt_to_phys ( region + len ) );
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}
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in_corruption = 1;
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printf ( "--- offset %#x ", offset );
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} else if ( ( in_corruption != 0 ) &&
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( test == GUARD_SYMBOL ) ) {
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/* End of corruption */
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in_corruption = 0;
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printf ( "to offset %#x", offset );
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}
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}
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if ( in_corruption != 0 ) {
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printf ( "to offset %#x (end of region)\n", len-1 );
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}
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return corrupted;
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}
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