Echelon Neuron - Manual (Page 207)

Mnemonic Operand Operation Description
ALLOC #literal [DSP+1] = TOS
DSP = DSP + literal
IP = IP+1 Move DSP by literal.
Literal range is 1 to 8.
AND
TOS = TOS & [DSP--]
C = 0
IP = IP+1 Bitwise AND of TOS and
NEXT. Drop NEXT.
AND #literal TOS = TOS & LITERAL
C = 0
IP = IP+2 AND literal with TOS.
AND_R TOS = TOS & [DSP--]
C = 0
Return Bitwise AND of TOS and
NEXT. Drop NEXT. Return to
caller.
BR label IP = IP+SD
IP = IP+2 Branch always.
The IP-relative displacement
SD ranges from -128 to 127.
BRC label IF (CARRY)
IP = IP+SD
IP = IP+2 Branch on carry.
The IP-relative displacement
SD ranges from -128 to 127.
BRF label IP = absolute address Branch far.
BRNC label IF (!CARRY)
IP = IP+SD
IP = IP+2 Branch on not carry.
The IP-relative displacement
SD ranges from -128 to 127.
BRNEQ #literal, label IF [TOS <> literal]
IP = IP+SD
ELSE
TOS = [DSP--]
IP = IP+3 Branch if TOS not equal to
constant. Else drop TOS.
BRNZ label IF TOS <> 0
IP = IP+SD
TOS = [DSP--]
IP = IP+2 Drop TOS, branch if TOS not
zero.
The IP-relative displacement
SD ranges from -128 to 127.
Neuron Assembly Language Reference 197