TC1796
System Units (Vol. 1 of 2)
Peripheral Control Processor (PCP)
User’s Manual 11-106 V2.0, 2007-07
PCP, V2.0
11.11.38 XOR, 32-Bit Logical Exclusive OR
This section describes the XOR instructions of the PCP.
XOR Syntax XOR Rb, Ra, cc_A
Description If the condition CONDCA is true, then perform a bit-wise
logical Exclusive-OR of the contents of register Ra and the
contents of register Rb; place the result in Rb. If CONDCA is
false, no operation is performed.
Operation if (CONDCA = True) then R[b] = R[b] XOR R[a] else NOP
Flags N, Z
XOR.F Syntax XOR.F Rb, [Ra], Size
Description Perform a bit-wise logical Exclusive-OR of the contents of the
address location, specified by the contents of register Ra, and
the contents of register Rb; place the result in Rb.
Operation R[b] = R[b] XOR zero_ext(FPI[R[a]])
Flags N, Z
XOR.PI Syntax XOR.PI Ra, [#offset6]
Description Perform a bit-wise logical Exclusive-OR of the contents of the
PRAM location specified by the addition of contents of the
PRAM Data Pointer, shifted left by six bits, and the zero-
extended 6-bit value offset6, and the contents of register Ra;
place the result in Ra.
Operation R[a] = R[a] XOR PRAM[(DPTR<<6) + zero_ext(#offset6)]
Flags N, Z
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