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memtest.c
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C/C++ Source or Header
|
1980-01-03
|
470b
|
26 lines
main(argc,argv)
long argc;
char *argv[];
{
unsigned short *adr;
int i,j,k,n;
adr=0x0400000;
for(i=0;i<0x010000;i++)
{
for(j=0x000000;j<0x080000;j++)
{
adr[j]=j+i+j>>12;
}
for(j=0x000000;j<0x080000;j++)
{
k=adr[j];
n=(j+i+j>>12)&0x0ffff;
if((n!=k)&&(argc>1))
printf("wrote %4x read %4x diff %4x at addr %6x\n",n,k,n^k,&adr[j]);
}
}
}