59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
#include "pcdrv.h"
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int ptrChecksum( u_long * pointer ){
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u_int checksum = 0;
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u_long work;
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work = ( u_long ) pointer - 0x80000000 ;
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while( work != 0 ){
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checksum += work % 10;
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work /= 10;
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}
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return checksum;
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};
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int waitForSIODone( int * flag ){
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// This should wait for a signal from the SIO to tell when it's done
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// Returns val < 0 if wrong
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uint timeOut = 1000;
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char result = 0;
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for ( uint t = 0; t < timeOut; t ++){
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if ( * flag == 1 ){
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result = * flag;
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break;
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}
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}
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return result;
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};
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void PCload( u_long * loadAddress, volatile u_char * flagAddress, u_char overlayFileID ) {
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// Send filename , load address, and flag address
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u_char escape = 0; // Hypothetical Escape char for unirom
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u_char protocol = 1; // Hypothetical protocol indicator for unirom
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u_char cmdChecksum = 0; // Not using that yet, ideally, should allow to check that the received command on the pc is the same as the one sent by the psx
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printf("%02u%02u%02u08%08x08%08x%02u%04u", escape, protocol, LOAD, loadAddress, flagAddress, overlayFileID, cmdChecksum);
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};
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