Comment #1 on issue 197 by robhamerling: Missing print procedure for float
variables
http://code.google.com/p/jallib/issues/detail?id=197
I've taken the example provided with the compiler (2.4q2) and modified it a
little. It depends on the print library, does not support the whole range
of possible values of a float and should be enhanced to make it generally
usable.
-- ---------------------------------------------------------
-- Simple float to ASCII conversion
-- Notes: - integer part limited to value of an sdword
-- - fraction limited to 6 digits
--
procedure print_float_dec(volatile byte out device, float in n) is
var byte d, k
var sdword sdw
sdw = n -- integer value
print_sdword_dec(device, sdw)
n = n - sdw -- fraction
device = "."
k = 1 -- at least 1 digit
(could be 0)
repeat
n = n * 10 -- next digit of fraction
d = byte(n) -- binary value
device = d + "0" -- ASCII to device
n = n - d -- remainder
k = k + 1 -- count printed digits
of fraction
until ((n < 0.1) | (k > 6)) -- zero value or more
than 6 digits
end procedure
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