URL https://opencores.org/ocsvn/eco32/eco32/trunk

Subversion Repositories eco32

[/] [eco32/] [trunk/] [hwtests/] [tlbtest/] [main.c] - Diff between revs 14 and 256

Rev 14	Rev 256
Line 279...	Line 279...
`offset = 0x123;`	`offset = 0x123;`
`for (i = 0; i < 100000; i++) {`	`for (i = 0; i < 100000; i++) {`
`/* compute pseudo-random virtual word address (page number 0..31) */`	`/* compute pseudo-random virtual word address (page number 0..31) */`
`page = (page * 13 + 1) & 0x1F;`	`page = (page * 13 + 1) & 0x1F;`
`offset = (offset * 109) & 0x00000FFF;`	`offset = (offset * 109) & 0x00000FFF;`
`virt = (page << 12) \| (offset & ~0x3);`	`virt = (page << 12) \| (offset & 0xFFFFFFFC);`
`/* lookup frame number in TLB and construct physical word address */`	`/* lookup frame number in TLB and construct physical word address */`
`index = probeTLB(virt);`	`index = probeTLB(virt);`
`if (index & 0x80000000) {`	`if (index & 0x80000000) {`
`fail = true;`	`fail = true;`
`break;`	`break;`
`}`	`}`
`frame = getTLB_LO(index) & 0xFFFFF000;`	`frame = getTLB_LO(index) & 0xFFFFF000;`
`phys = frame \| (offset & ~0x3);`	`phys = frame \| (offset & 0xFFFFFFFC);`
`/* access memory by dereferencing the virtual address */`	`/* access memory by dereferencing the virtual address */`
`cont = (Word )virt;`	`cont = (Word )virt;`
`/* word read should equal physical address */`	`/* word read should equal physical address */`
`if (cont != phys) {`	`if (cont != phys) {`
`fail = true;`	`fail = true;`