Zilog Z8F0130 - Manual (Page 201)

eZ8
™
CPU Core
User Manual
UM012820-0810 LDX Instruction
186
If Register Pair ( 20h, 21h ) contains the value 0456h , and Register F2h
contains the value BBh , and Register BBh contains the value 5Fh , the fol-
lowing statement loads the value 5Fh into Register 0456h :
LDX @.ER(20h), @F2h
Object Code: 97 F2 20
The contents of Register Pair ( 20h, 21h ), Register F2h , and Register
BBh are not affected.
The .ER notation is used in this case to resolve the ambiguity that
would otherwise be present as to which operand ( 20h or F2h ) is to be
treated as a Register Pair.
If Register 29Ch contains the value 22h , the following statement loads
the value 22h into Register 702h :
LDX 702h, 29Ch
Object Code: E8 29 C7 02
The contents of Register 29Ch are not affected.
The following statement loads the value 56h into Register 703h :
LDX 703h, #56h
Object Code: E9 56 07 03
Note: