Table of Contents        Previous topic       Next topic       

MICROPROCESSOR INSTRUCTION REFERENCE->ST (16 bit)

ST     Store Register in Memory
STD
STS   M:M+1 <- D or M:M+1 <- S  or
STU   M:M+1 <- U or M:M+1 <- X  or
STX   M:M+1 <- Y
STY

Condition Code Register:

H  Not affected
N  Set if result Negative, else cleared
Z  Set if result Zero, else cleared
V  Always cleared
C  Not affected

    

Addressing mode	No of cycles	No of bytes
Direct:	5  (6)	2  (3)
Extended:	6  (7)	3  (4)
Index/Indirect:	5+ (6+)	2+ (3+)

Bracketed numbers refer to STS and STY