Parallel Processor Instruction Set

Data Unit Instruction Examples

; conditional assignment

a15 = d6 - 31 ; a15 is read-as-zero register

d6 = [lt] d6 + 1 ;increment d6 if it is less than 31

; conditional source selection

; sr = 0x80000000 (n=1)

d5 = d5 + d7[n]d6 ; Add d7 (if n=1) or d6 (if n=0)

; subtract and shift in parallel with unsigned multiply

d7 = u d6*d5

||d5 = d4 - d1 >> -d0

; expand operation (uses mf and sr registers)

; mf=0x3, sr=0x20 (msize = byte, expand LSB)

d1 = (d6 & @mf) | (d5 & ~@mf)

; mask generator operator

(d6 & %7) ; d6 & 0x0000007F