IBM 560E User Manual

   

 

BOOLEAN GetSmapiEntry(PSMB pFunc)
{

PFSMB_HEADER_REAL

MyPtr = ðxFððððððð ;

WORD

cnt = ð ;

BYTE

cksum = ð ;

 

//
// 1) Search for signature first

 

//
while((cnt++ < ðx1ððð) &&

!(((MyPtr->SMBHDR_SIG)[ð] == '$') &&

((MyPtr->SMBHDR_SIG)[1] == 'S') &&
((MyPtr->SMBHDR_SIG)[2] == 'M') &&
((MyPtr->SMBHDR_SIG)[3] == 'B') )) {

 

MyPtr++ ;

 

}

 

//
//

2) Find the Signature?

 

//
if (cnt >= ðx1ððð) {

// We cannot find it.
return FALSE ;
} else {

 

//
//

3) Calculate Checksum

 

//
for (cnt = ð ; cnt < MyPtr->SMBHDR_LEN ; cnt++)

cksum += (BYTE)((MyPtr->SMBHDR_SIG)[cnt]) ;

if (cksum) {

// Bad Checksum
return FALSE ;

} else {

// Build Return Address
(\pFunc) = ( (DWORD)(MyPtr->SMBHDR_R_OFFSET) +

(((DWORD)(MyPtr->SMBHDR_R_SEGMENT)) << 16) ) ;

return TRUE ;

 

}

 

}

}

ThinkPad 560/560E SMAPI BIOS