Mach64_Divide
int Mach64_Divide(int numerator, int denom, int shift,
int tmp = Mach64_Divide(multiplier * params.displayFIFODepth, divider, vshift, -1);
int dsp_off = Mach64_Divide(multiplier * (params.displayFIFODepth - 1),
divider, vshift, -1) - Mach64_Divide(1, 1, vshift - xshift, 1);
int dsp_on = Mach64_Divide(multiplier, divider, vshift, 1);
tmp = Mach64_Divide(RASMultiplier, RASDivider, xshift, 1);
Mach64_Divide(params.xClkPageFaultDelay, 1, xshift, 1);
dsp_on = dsp_off - Mach64_Divide(multiplier, divider, vshift, -1);
int dsp_xclks = Mach64_Divide(multiplier, divider, vshift + 5, 1);