1989_MELPS_7700_Software_Manual

TXY
Transfer Index Register X to V
TXY
Operation
If x=O,
YL f- XL
YH f- XH
If x=1,
YL f- XL
Description
Loads t~e index register V with the contents of the index register X. The contents
of the index register X are not changed.
Status flags
IPL:
N
v
m
x
D
I
Z
C
Not affected.
Set to 1 when bit 15 (or bit 7 if the index register length selection flag x is set
to 1) cf the operation result is 1. Otherwise, cleared to O.
Not affected.
Not affected.
Not affected.
Not affected.
Not affected.
Set to 1 when the result of operation is O. Otherwise, cleared to O.
Not affected.
Addressing mode Syntax Machine code Bytes Cycles
Implied TXY 9B16 1 2
159