Hi I'm corrently playing around with an 2183 ADSP, and writing some test programs for it. However I fail to understand the logic behind the AV bit in the astat register. I have to user guide, and I've read and understand the principle of it however I would like a more indepth knowledge. Can anyone here explain how it works, and/or have som examples how to test the bit. Thank you /Ephreal
ADSP 218x AV bit
Started by ●June 16, 2011
Reply by ●June 16, 20112011-06-16
Ephreal wrote:> Hi > > I'm corrently playing around with an 2183 ADSP, and writing some test > programs for it. However I fail to understand the logic behind the AV bit > in the astat register. I have to user guide, and I've read and understand > the principle of it however I would like a more indepth knowledge. > > Can anyone here explain how it works, and/or have som examples how to test > the bit.AV = ALU overflow. It is set whenever the ALU result was folded from positive to negative or from negative to positive through 32767/-32768 border. Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com