R600_SCRATCH_REG2
biosScratch2 = Read32(OUT, R600_SCRATCH_REG2);
Write32(OUT, R600_SCRATCH_REG2, biosScratch2);
uint32 biosScratch2 = Read32(OUT, R600_SCRATCH_REG2);
Write32(OUT, R600_SCRATCH_REG2, biosScratch2);