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INPUT/OUTPUT
(cont.)
Parallel 1/0 (PIO)
Floating Point Board (FPB)
A-4
8-bit data in and out with three handshake lines for each port
Maximum speed is limited by the processor
Performs high-speed BCD floating point arithmetic:
add, subtract, multiply, divide
Up to 14 digits of precision (programmable)
Overflow/underflow and divide by zero status
Typical 8-digit multiply: 80
µsec
Typical 8-digit divide: 156
µsec
ADVANTAGE User Manual
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