Epson S1C6200A, S1C6200 CONTENTS, 1 DESCRIPTION, 2 MEMORY AND OPERATIONS, 3 INSTRUCTION SET, A. S1C6200A (ADVANCED S1C6200) CORE CPU, B. INSTRUCTION INDEX

CONTENTS

S1C6200/6200A Core CPU Manual

CONTENTS

1 DESCRIPTION ____________________________________________________ 1

1.1	System Features ........................................................................................................	1
1.2	Instruction Set Features ...........................................................................................	1
1.3	Differences between S1C6200 and S1C6200A .........................................................	1

2 MEMORY AND OPERATIONS __________________________________________ 3

2.1	Program Memory (ROM) .........................................................................................	3
	2.1.1 Program counter block ............................................................................................	4
	2.1.2 Flags ........................................................................................................................	4
	2.1.3 Jump instructions .....................................................................................................	5
	2.1.4 PSET with jump instructions ...................................................................................	5
	2.1.5 Call instructions ......................................................................................................	5
	2.1.6 PSET instruction ......................................................................................................	6
	2.1.7 CALZ instruction .....................................................................................................	6
	2.1.8 RET and RETS instructions .....................................................................................	7
	2.1.9 Stack considerations for call instructions ...............................................................	7
2.2	Data Memory ............................................................................................................	8
	2.2.1 Data memory addressing .........................................................................................	8
2.3	ALU (Arithmetic Logic Unit) and Registers ............................................................	10
	2.3.1 D (decimal) flag and decimal operations ...............................................................	10
	2.3.2 A and B registers ....................................................................................................	11
2.4	Timing Generator ....................................................................................................	11
	2.4.1 HALT and SLP (sleep) modes .................................................................................	11
2.5	Interrupts .................................................................................................................	12
	2.5.1 Interrupt vectors .....................................................................................................	12
	2.5.2 I (interrupt) flag ......................................................................................................	12
	2.5.3 Operation during interrupt generation ..................................................................	12
	2.5.4 Initial reset ..............................................................................................................	15

3 INSTRUCTION SET _________________________________________________ 16

3.1	Instruction Indices ...................................................................................................	16
	3.1.1 By function ..............................................................................................................	17
	3.1.2 In alphabetical order ..............................................................................................	20
	3.1.3 By operation code ...................................................................................................	23
3.2	Operands .................................................................................................................	26
3.3	Flags ........................................................................................................................	26
3.4	Instruction Types .....................................................................................................	27
3.5	Instruction Descriptions ..........................................................................................	27
APPENDIX	A. S1C6200A (ADVANCED S1C6200) CORE CPU _________________ 84
	B. INSTRUCTION INDEX ______________________________________ 87

S1C6200/6200A CORE CPU MANUAL EPSON i