UPD789014 Datasheet, PDF (100/123 Pages) NEC – 8-Bit Single-Chip Microcontroller Instructions

CHAPTER 5 EXPLANATION OF INSTRUCTIONS
MOVW SP, AX
MOVW AX, SP
[Instruction format]
[Operation]
[Operand]
MOVW dst, src
dst ← src
Mnemonic
MOVW
Operand (dst, src)
SP, AX
AX, SP
[Flag]
Z
AC
CY
Move Word
Word Data Transfer with Stack Pointer
[Description]
• This is an instruction to manipulate the stack pointer contents.
• The source operand (src) specified with the 2nd operand is stored in the destination operand (dst) specified
with the 1st operand.
[Description example]
MOVW SP, AX; AX register contents are stored in the stack pointer.
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User’s Manual U11047EJ3V0UM00