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Altera_Forum's avatar
Altera_Forum
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15 years ago

printing floating point

Hi, is there any ways to print float number in Nios II? Example: a = 100, b = 195 c = (b-a)/100, so c = 0.95 so, how to print c = 0.95? because when i print, the answer is 0.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

how have you defined pio_tick and dma_tick? if you have non floating point in a division in C the integer aritmetic is used.

int a = 195;

int b = 100;

float c;

a - b=95

c = 95/100 = 0

try putting casts to float

(float)(a-b)/(float)a