Samsung KS57C2308 Idle, Stop, Cpse, Ea,Rr, JPS ADR12, @Ea, Call ADR14, Calls ADR11, Sret

KS57C2308/P2308/C2316/P2316SAM47 INSTRUCTION SET

Table 5-9. CPU Control Instructions — High-Level Summary

Name	Operand	Operation Description	Bytes	Cycles
SCF		Set carry flag to logic one	1	1
RCF		Reset carry flag to logic zero	1	1
CCF		Complement carry flag	1	1
EI		Enable all interrupts	2	2
DI		Disable all interrupts	2	2
IDLE		Engage CPU idle mode	2	2
STOP		Engage CPU stop mode	2	2
NOP		No operation	1	1
SMB	n	Select memory bank	2	2
SRB	n	Select register bank	2	2
REF	memc	Reference code	1	1
VENTn	EMB (0,1)	Load enable memory bank flag (EMB) and the enable	2	2
	ERB (0,1)	register bank flag (ERB) and program counter to vector
	ADR	address, then branch to the corresponding location

Table 5-10. Program Control Instructions — High-Level Summary

Name	Operand	Operation Description	Bytes	Cycles
CPSE	R,#im	Compare and skip if register equals #im	2	2 + S
	@HL,#im	Compare and skip if indirect data memory equals #im	2	2 + S
	A,R	Compare and skip if A equals R	2	2 + S
	A,@HL	Compare and skip if A equals indirect data memory	1	1 + S
	EA,@HL	Compare and skip if EA equals indirect data memory	2	2 + S
	EA,RR	Compare and skip if EA equals RR	2	2 + S
JP	ADR14	Jump to direct address (14 bits)	3	3
JPS	ADR12	Jump direct in page (12 bits)	2	2
JR	#im	Jump to immediate address	1	2
	@WX	Branch relative to WX register	2	3
	@EA	Branch relative to EA	2	3
CALL	ADR14	Call direct in page (14 bits)	3	4
CALLS	ADR11	Call direct in page (11 bits)	2	3
RET	–	Return from subroutine	1	3
IRET	–	Return from interrupt	1	3
SRET	–	Return from subroutine and skip	1	3 + S

5-9