Zilog Z8F0130 - Manual (Page 192)

eZ8
™
CPU Core
User Manual
UM012820-0810 LDEI Instruction
177
Attributes
Sample Usage
If Working Register Pair RR6 (R6 and R7) contains the value 404Ah ,
Data Memory location 404Ah and 404Bh contain the values ABh and C3h
respectively, and Working Register R2 contains the value 22h , the follow-
ing statement loads the value ABh into Register 22h .
LDEI @R2, @RR6

Object Code: 83 26
Working Register Pair RR6 increments to 404Bh and Working Register
R2 increments to 23h . A second instruction loads the value C3h into Reg-
ister 23h :
LDEI @R2, @RR6

Object Code: 83 26
Working Register Pair RR6 increments to 404Ch and Working Register
R2 increments to 24h .
If Working Register R2 contains the value 22h , Register 22h contains the
value ABh , Register 23h contains the value C3h , and Working Register
Pair R6 and R7 contains the value 404Ah , the following statement loads
the value ABh into Data Memory location 404Ah :
LDEI @RR6, @R2

Object Code: 93 26
Working Register R2 increments to 23h and Working Register Pair RR6
increments to 404Bh . A second instruction,
Mnemonic
Destination,
Source
Op
Code
(Hex)
Operand 1 Operand 2 Operand 3
LDEI @r1, @rr2 83 {r1, rr2} — —
LDEI @rr1, @r2 93 {r2, rr1} — —