Comment 42 for bug 116734

Small test program:
#include <stdio.h>

#define PCI_SIGNATURE (('P' << 0) + ('C' << 8) + ('I' << 16) + (' ' << 24))

int main(void)
{
 short status = 0x81;
 long signature = 0x49435000;

 printf("status = %x\nsignature = %08x\n", status, signature);
 printf("PCI_SIGNATURE = %x\n", PCI_SIGNATURE);
 return 0;
}

the result:
status = 81
signature = 49435000
PCI_SIGNATURE = 20494350