NEC PD754144 User Manual page 38

CHAPTER 3 FEATURES OF ARCHITECTURE AND MEMORY MAP
Examples 1. To compare data 50H to 57H with data 60H to 67H
DATA1 EQU
DATA2 EQU
LOOP : MOV
2. To clear data memory of 004H to 07FH
LOOP : MOV
38
57H
67H
SET1 MBE
SEL MB0
MOV D, #DATA1 SHR 4
MOV HL, #DATA2 AND 0FFH
A, @DL
SKE A, @HL ; A = (HL)?
BR NO ; NO
; YES, L ← L – 1
DECS L
BR LOOP
CLR1 RBE
CLR1 MBE
MOV XA, #00H
MOV HL, #04H
; (HL) ← A
@HL, A
; L ← L+1
INCS L
BR LOOP
; H ← H+1
INCS H
NOP
SKE H, #08H
BR LOOP
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