Clean up jump into RING 3
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@ -4,7 +4,13 @@
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#include "../filesystem/FAT/BiosParameterBlock.h"
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#include "../filesystem/FAT/DirectoryEntry.h"
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bool isRunning = true;
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void startSuperVisorTerminal(){
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extern "C" void startSuperVisorTerminal()
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{
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/*
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* Show a little banner for cuteness
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*/
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printf("|=== BarinkOS ===|\n");
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while (isRunning){
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printf("SUPERVISOR:>$ " );
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@ -115,7 +121,7 @@ void startSuperVisorTerminal(){
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uint16_t biosparameterblock[256];
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ATA_DEVICE::Read(BUS_PORT::Primary, DEVICE_DRIVE::MASTER, mbr->TableEntries[0].LBA_partition_start, biosparameterblock);
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BiosParameterBlock* bpb = (BiosParameterBlock*) biosparameterblock;
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auto* bpb = (BiosParameterBlock*) biosparameterblock;
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printf("\nBPB: Bytes per Sector %d\n", bpb->BytesPerSector );
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@ -138,8 +144,8 @@ void startSuperVisorTerminal(){
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ATA_DEVICE::Read(BUS_PORT::Primary, DEVICE_DRIVE::MASTER, FATAddress, FAT );
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// Show data in terminal
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for(int i = 0; i < 256; i++ ) {
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printf("%x ", FAT[i]);
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for(unsigned short i : FAT) {
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printf("%x ", i);
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}
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kterm_put('\n');
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@ -149,33 +155,35 @@ void startSuperVisorTerminal(){
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uint16_t data2 [256];
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ATA_DEVICE::Read(BUS_PORT::Primary, DEVICE_DRIVE::MASTER, RootDirectoryRegion, data2 );
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DirectoryEntry* RootDirectory = (DirectoryEntry*) data2;
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auto* RootDirectory = (DirectoryEntry*) data2;
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// List files in root
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for(int i= 0; i < bpb->NumberOfDirectoryEntries ; i++ )
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{
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DirectoryEntry* entry = (DirectoryEntry*)((uint32_t) RootDirectory + (i * sizeof(DirectoryEntry)));
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auto* entry = (DirectoryEntry*)((uint32_t) RootDirectory + (i * sizeof(DirectoryEntry)));
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if( entry->filename[0] == (uint8_t) 0x00 )
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break; // There are no more entries in this directory or the entry is free
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if( entry->attribute & 0x01 == 0x01 || entry->attribute & 0x20 == 0x20)
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if( (entry->attribute & 0x01) == 0x01 || (entry->attribute & 0x20) == 0x20)
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continue; // Skip listing if hidden or Achieve flag is set
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// Print the filename;
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for( int n = 0; n < 8; n++ ){
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if(entry->filename[n] == 0x20)
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for(char n : entry->filename){
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if(n == 0x20)
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break;
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kterm_put(entry->filename[n]);
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}kterm_put('\n');
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kterm_put(n);
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}
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kterm_put('\n');
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for( int n = 0; n < 3; n++){
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kterm_put(entry->Extension[n]);
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}kterm_put('\n');
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for(unsigned char n : entry->Extension){
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kterm_put(n);
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}
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kterm_put('\n');
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printf("Attribute: %x \n" , entry->attribute);
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printf("FileSize: %d Bytes\n", entry->FilesizeInBytes);
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if( entry->FilesizeInBytes != 0x0 || entry->attribute & 0x8 == 0x0){
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if( entry->FilesizeInBytes != 0x0 || (entry->attribute & 0x8) == 0x0){
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printf("Show contents");
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printf( "Start cluster of the file: 0x%x\n" , entry->StartingCluster);
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@ -187,11 +195,11 @@ void startSuperVisorTerminal(){
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uint16_t dataBlob [256];
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ATA_DEVICE::Read(BUS_PORT::Primary, DEVICE_DRIVE::MASTER, sector, dataBlob );
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for( int n = 0; n < 256; n++)
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for(unsigned short n : dataBlob)
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{
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kterm_put(dataBlob[n] & 0x00ff);
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kterm_put(n & 0x00ff);
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kterm_put(dataBlob[n] >> 8);
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kterm_put(n >> 8);
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}kterm_put('\n');
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@ -8,4 +8,4 @@ extern "C" {
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#include "../../lib/include/string.h"
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}
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void startSuperVisorTerminal();
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extern "C" void startSuperVisorTerminal();
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