RADEON_CLOCK_CNTL_INDEX
OUTREGP( regs, RADEON_CLOCK_CNTL_INDEX,
clock_cntl_index = INREG( regs, RADEON_CLOCK_CNTL_INDEX );
OUTREG( regs, RADEON_CLOCK_CNTL_INDEX, clock_cntl_index );
save = INREG( regs, RADEON_CLOCK_CNTL_INDEX );
OUTREG( regs, RADEON_CLOCK_CNTL_INDEX, tmp );
OUTREG( regs, RADEON_CLOCK_CNTL_INDEX, save );
OUTREG8( regs, RADEON_CLOCK_CNTL_INDEX, addr & 0x3f );
OUTREG8( regs, RADEON_CLOCK_CNTL_INDEX, ((addr & 0x3f ) |