SEI — Set Interrupt disable status — M50734SP Resource

M50734SP Resource Site

Home

Processor

Overview & Architecture Memory Map Registers & Flags On-Chip Peripherals Interrupts

Designers Board

Board Overview Memory Interface I/O Connectors Monitor Program Component Database

Instructions

Full Instruction Index Arithmetic Branch Bit Operations Data Transfer Logic Stack System

Examples Downloads

Home › Instructions › SEI

Instructions

← All Instructions

SEI

Set Interrupt disable status

Flag Operations

SEI instruction reference scan

Scanned from original Mitsubishi M50734 Software Manual. Click to enlarge.

Click anywhere or press Esc to close

M50734SP Resource Site

A community reference for the Mitsubishi M50734SP microprocessor and the RCS Microsystems Designers Board. Preserving and documenting vintage single-chip microcomputer technology for engineers and enthusiasts.

⚡ Mitsubishi 740-Series CMOS Microcomputer Family

Processor

Architecture Memory Map Registers Peripherals Instruction Set

Resources

Designers Board Component Database Code Examples Downloads

M50734SP Resource Site — Community Documentation Project Mitsubishi M50734SP · 740-Series CMOS · 2026