NEC PD750008 User Manual

Page 298

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278

µPD750008 USER'S MANUAL

OR rp’1,XA

Function: rp’1 <– rp’ XA

ORs the contents of register pair rp’1 (HL, DE, BC, XA’, HL’, DE’, BC’) with the contents of the XA register

pair, then sets the result in register pair rp’1.

XOR A,#n4

Function: A <– A

n4 n4 = I

3-0

: 0-FH

Exclusive-ORs the contents of the A register with the 4-bit immediate data n4, then sets the result in the

A register.

Example The high-order four bits of an accumulator is inverted.

XOR A,#1000B

XOR A,@HL

Function: A <– A

(HL)

Exclusive-ORs the contents of the A register with the data at the data memory location addressed by the

HL register pair, then sets the result in the A register.

XOR XA,rp’

Function: XA <– XA

rp’

Exclusive-ORs the contents of the XA register pair with the contents of register pair rp’ (XA, HL, DE, BC,

XA’, HL’, DE’, BC’), then sets the result in the XA register pair.

XOR rp’1,XA

Function: rp’1 <– rp’1 XA

Exclusive-ORs the contents of register pair rp’1 (HL, DE, BC, XA’, HL’, DE’, BC’) with the contents of the

XA register pair, then sets the result in register pair rp’1.

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