GMS81C2020 Datasheet, PDF (42/92 Pages) Hynix Semiconductor – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

GMS81C2020/GMS81C2120
Hyundai Micro Electro nics
Y indexed indirect → [dp]+Y
Processes momory data as Data, assigned by the data
[dp+1][dp] of 16-bit pair memory paired by Operand in Di-
rect pageplus Y-register data.
ADC, AND, CMP, EOR, LDA, OR, SBC, STA
Example; Y=10_H
1725 ADC [25H]+Y
Absolute indirect → [!abs]
The program jumps to address specified by 16-bit absolute
address.
JMP
Example;
1F25E0 JMP [!0C025H]
25_H
05
26_H
E0
~~
0E015_H
data
~~
0FA00_H
17
25
~~ ^{À 0E005H + Y(10) = 0E015H}
þ
~~
à A + data + C → A
PROGRAM MEMORY
0E025_H
0E026_H
~~
þ ^0E725H
~~
0FA00_H
25
E7
NEXT
1F
25
E0
~~
À ^{jump to}
address 0E30A_H
~~
42
preliminary
Nov. 1999 Ver 0.0