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Code: Select all
echo 1234567 >> sample
bc prog < sample | bash > out
Code: Select all
# input: a sequence of numbers on lines,
# each representing a 16bit sample
# each between -32777 and +32768 or
# each between 0 and 65535
obase=16
fifteen=2^15
sixteen=2^16
define report_error_over(n) {
# we don't know this
# let's write something to the output and
# skip the rest of the file
#
# assume bash reads the output
obase=10
print "echo THERE WAS AN OVERFLOW ERROR, ", n," is too large >2n"
obase=16 # for sure
while (1) {
n = read()
if (n == 1234567) { halt }
}
}
while(1) {
n = read()
if (n == 1234567) { halt }
if (n >= sixteen) { n = sixteen-1; report_error_over(n) }
if (n < -fifteen ) { n = 0; report_error_over(n) }
if (n < 0) { n += sixteen }
a=n/256
b=n-256*a
print "printf 'x'", a, "'x'", b, "n"
}